CN202087674U - Back pressure type trimming mold capable of controlling deformation quantity after forging crankshaft trimming - Google Patents

Back pressure type trimming mold capable of controlling deformation quantity after forging crankshaft trimming Download PDF

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Publication number
CN202087674U
CN202087674U CN201120194318XU CN201120194318U CN202087674U CN 202087674 U CN202087674 U CN 202087674U CN 201120194318X U CN201120194318X U CN 201120194318XU CN 201120194318 U CN201120194318 U CN 201120194318U CN 202087674 U CN202087674 U CN 202087674U
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CN
China
Prior art keywords
pressure
trimming
die
mold
spring
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Application number
CN201120194318XU
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Chinese (zh)
Inventor
李路
王放
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西南大学
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Priority to CN201120194318XU priority Critical patent/CN202087674U/en
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Publication of CN202087674U publication Critical patent/CN202087674U/en

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Abstract

The utility model discloses a back pressure type trimming mold capable of controlling the deformation quantity after forging crankshaft trimming, which comprises an upper mold seat, a trimming punch, a lower mold seat, a trimming female mold and a back pressure mold assembly, wherein the trimming punch is arranged on the upper mold seat, a first die cavity is arranged on the trimming punch, the trimming female mold is arranged on the lower mold seat and is provided with a trimming edge, the back pressure mold assembly comprises a back pressure mold and a back pressure spring assembly, and the back pressure mold is provided with a second die cavity. A crankshaft forged piece can be precisely positioned through the second die cavity, the hidden danger generated by the trimming deformation is eliminated, and the strong enough and uniform back pressure force can be exerted on the back pressure mold through the back pressure spring assembly, so the second die cavity of the back pressure mold and the first die cavity of the trimming punch are tightly pasted with the molded surface of the crankshaft forged piece, the trimming deformation region is completely limited at the flashing position, the trimming process of the forged piece is completed in the sealed die cavity, the space directional deformation of the crankshaft forged piece generated in the trimming process is fundamentally inhibited, the correction work procedure is simplified, and the production efficiency can be greatly improved.

Description

Can control the back pressure type shaving die of crankshaft forging side cut back deflection

Technical field

The utility model relates to a kind of mould, particularly a kind of mould that is used to excise the crankshaft forging overlap.

Background technology

The design feature of crankshaft forging belongs to that typical major axis class, the high rib of thin web plate, drop are big, thinner thickness (balance weight), complex-shaped forging.In traditional bent axle Forging Technology, be subject to the complexity of mould structure and technologic immature, mostly adopt the two-step means of proofreading and correct again after cutting edge to reach the purpose of forging deflashing, school glacing flatness.This method is inefficiency not only, and maximum defective is that also the edger structure is too simple, can only proofread and correct the forging problem on deformation along the side cut direction, and divide the deflection on the non-side cut direction of mould bent axle (90 °, 120 ° etc.) uncontrollable to the space.And mold mechanism lacks the enough restrictions to the forging free degree, is easy to cause produce warpage vertically in the crankshaft forging side cut process, and the side cut problem on deformation of balance weight distortion, and when deflection was enough big, follow-up correcting process was often powerless.The distortion of cutting edge will directly cause the dynamic balancing of bent axle overproof, make the difficult quality guarantee of crankshaft forging.

Therefore need improve crankshaft forging shaving die of the prior art,, evade the side cut deformation defect, reduce and proofread and correct work step, enhance productivity to improve the crankshaft forging trimming quality.

Summary of the invention

In view of this, the purpose of this utility model provides and a kind ofly can improve the crankshaft forging trimming quality, evades the side cut deformation defect, reduces and proofreaies and correct work step, the cut edge back pressure type shaving die of back deflection of the crankshaft forging controlled of enhancing productivity.

The utility model can be controlled the back pressure type shaving die of crankshaft forging side cut back deflection, comprises upper bolster, trimming punch, die shoe, trim die and back pressure membrane module,

Described trimming punch is arranged on the upper bolster, and trimming punch is provided with bent axle and forges die joint with the adaptive die cavity I in top,

Trim die is arranged on the die shoe, and trim die is provided with cross sectional shape and bent axle forges the adaptive through hole in somatotype cross section, and the through hole upper end is provided with bent axle forges the adaptive side cut sword in somatotype cross section,

Back pressure mould that the back pressure membrane module comprises in the through hole that is arranged at trim die and through hole is slidingly matched and the back pressure spring assembly that is arranged on the pressing mold applied thrust of supporting or opposing on the die shoe, back pressure mould are provided with bent axle and forge die joint with the adaptive die cavity II in lower part.

Further, described back pressure spring assembly comprises spring reference column I and the butterfly spring that is coated at spring reference column I;

Further, described back pressure membrane module also comprises floating part spring assembly, and floating part spring assembly comprises that being used to promote the back pressure mould makes the floating part spring of bent axle disengaging trim die on the back pressure mould and be used to locate the spring reference column II of floating the part spring;

Further, the size of the gap h between side cut sword and the back pressure mould is 0.3mm≤h≤0.6mm;

Further, also comprise the overlap discharge component, described overlap discharge component comprises and is coated at trimming punch and the stripper that is slidingly matched with it, is arranged at and is used to promote spring that stripper slides along trimming punch and the keeper that is used to limit the stripper sliding distance on the upper bolster.

The beneficial effects of the utility model:

One, the utility model can be controlled the back pressure type shaving die of crankshaft forging side cut back deflection, and the die cavity II of its back pressure mould can accurately be located crankshaft forging, thereby has evaded the bad problem in location in the prior art, having got rid of the hidden danger of the distortion generation of cutting edge.

Two, the back pressure spring assembly pressing mold of can supporting or opposing applies enough big and uniform back pressure, thereby the die cavity II of back pressure mould and the die cavity I and the crankshaft forging profile of trimming punch are fitted tightly, the side cut deformed area is limited in the overlap position fully, make forging near closed hollow ring, finish the side cut process, fundamentally suppress crankshaft forging and in the side cut process, produced the direction in space distortion, correcting process is simplified, can very big enhancing productivity.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further described.

Fig. 1 can control the structural representation of the back pressure type shaving die of crankshaft forging side cut back deflection for the utility model;

Fig. 2 is the schematic top plan view of trim die and back pressure mould;

Fig. 3 is the enlarged diagram of P portion among Fig. 2.

The specific embodiment

Fig. 1 can control the structural representation of the back pressure type shaving die of crankshaft forging side cut back deflection for the utility model; Fig. 2 is the schematic top plan view of trim die and back pressure mould; Fig. 3 is the enlarged diagram of P portion among Fig. 2.

As shown in the figure, present embodiment can be controlled the back pressure type shaving die of crankshaft forging side cut back deflection, comprises upper bolster 1, trimming punch 2, die shoe 3, trim die 4 and back pressure membrane module,

Described trimming punch 2 is arranged on the upper bolster 1, and trimming punch 2 is provided with bent axle and forges die joint with the adaptive die cavity I 2a in top,

Trim die 4 is arranged on the die shoe 1, and trim die 4 is provided with cross sectional shape and bent axle forges the adaptive through hole in somatotype cross section, and the through hole upper end is provided with bent axle forges the somatotype adaptive side cut sword 4a in cross section,

Back pressure mould 5 that the back pressure membrane module comprises in the through hole that is arranged at trim die 4 and through hole is slidingly matched and the back pressure spring assembly that is arranged on pressing mold 5 applied thrusts of supporting or opposing on the die shoe 1, back pressure mould 5 are provided with bent axle and forge die joint with the adaptive die cavity II 5a in lower part.

The utility model can be controlled the back pressure type shaving die of crankshaft forging side cut back deflection, and the die cavity II of its back pressure mould can accurately be located crankshaft forging, thereby has evaded the bad problem in location in the prior art, having got rid of the hidden danger of the distortion generation of cutting edge.The back pressure spring assembly pressing mold of can supporting or opposing applies enough big and uniform back pressure, thereby the die cavity II of back pressure mould and the die cavity I and the crankshaft forging profile of trimming punch are fitted tightly, the side cut deformed area is limited in the overlap position fully, make forging near closed hollow ring, finish the side cut process, fundamentally suppress crankshaft forging and in the side cut process, produced the direction in space distortion, correcting process is simplified, can very big enhancing productivity.

In the present embodiment: described back pressure spring assembly comprises spring reference column I 6 and is coated at the butterfly spring 7 of spring reference column I 6; The rigidity of butterfly spring is bigger, thereby enough back pressures are provided for the back pressure mould, so that die cavity I 2a closely contacts with crankshaft forging with die cavity II 5a, back pressure mould 5 and trimming punch 2 are in relative static conditions, prevent that effectively bent axle from producing the axial deformation that overcomes spring thrust.Certainly butterfly spring also can be alternative than big spring with other rigidity in concrete enforcement.

As the improvement to the present embodiment, described back pressure membrane module also comprises floating part spring assembly, and floating part spring assembly comprises that being used to promote the back pressure mould makes the floating part spring 8 of bent axle disengaging trim die on the back pressure mould and be used to locate the spring reference column II 9 of floating the part spring; Be not subjected under trimming punch 2 pressure states, floating part spring 8 pushes away trim die one segment distance with crankshaft forging, loads and unloads crankshaft forging on the pressing mold 5 of being convenient to support or oppose, and can increase work efficiency.

Be respectively equipped with back pressure spring assembly and floating part spring assembly in the present embodiment, can before the beginning of cutting edge, make the back pressure mould bear less pressure, can reduce the consumption of side cut energy; Certainly in concrete enforcement, select suitable spring, only also can reach goal of the invention with the back pressure spring assembly.

As the improvement to the present embodiment, the gap h size between side cut sword 4a and the back pressure mould 5 is 0.3mm≤h≤0.6mm; Can obtain the effect of cutting edge preferably in this scope value.

As improvement to the present embodiment, also comprise the overlap discharge component, described overlap discharge component comprises the stripper 10 that is coated at trimming punch 2 and is slidingly matched with it, be arranged at and be used to promote spring 11 that stripper 10 slides along trimming punch and the keeper 12 that is used to limit stripper 10 sliding distances on the upper bolster 1.Keeper 12 in the present embodiment is a bolt.Rim charge after the side cut can be clipped on the trimming punch, causes rim charge blanking difficulty, and the overlap discharge component of the present embodiment setting can push away rim charge trimming punch 2 automatically, and discharging is efficient and convenient, high efficiency.

Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.

Claims (5)

1. can control the crankshaft forging side cut back pressure type shaving die of deflection afterwards for one kind, it is characterized in that: comprise upper bolster, trimming punch, die shoe, trim die and back pressure membrane module,
Described trimming punch is arranged on the upper bolster, and trimming punch is provided with bent axle and forges die joint with the adaptive die cavity I in top,
Trim die is arranged on the die shoe, and trim die is provided with cross sectional shape and bent axle forges the adaptive through hole in somatotype cross section, and the through hole upper end is provided with bent axle forges the adaptive side cut sword in somatotype cross section,
Back pressure mould that the back pressure membrane module comprises in the through hole that is arranged at trim die and through hole is slidingly matched and the back pressure spring assembly that is arranged on the pressing mold applied thrust of supporting or opposing on the die shoe, back pressure mould are provided with bent axle and forge die joint with the adaptive die cavity II in lower part.
2. the back pressure type shaving die of controlling crankshaft forging side cut back deflection according to claim 1, it is characterized in that: described back pressure spring assembly comprises spring reference column I and is coated at the butterfly spring of spring reference column I.
3. the back pressure type shaving die of controlling crankshaft forging side cut back deflection according to claim 2, it is characterized in that: described back pressure membrane module also comprises floating part spring assembly, and floating part spring assembly comprises that being used to promote the back pressure mould makes the floating part spring of bent axle disengaging trim die on the back pressure mould and be used to locate the spring reference column II of floating the part spring.
4. according to the described back pressure type shaving die of controlling crankshaft forging side cut back deflection of arbitrary claim in the claim 1 to 3, it is characterized in that: the gap h size between side cut sword and the back pressure mould is 0.3mm≤h≤0.6mm.
5. the back pressure type shaving die of controlling crankshaft forging side cut back deflection according to claim 4, it is characterized in that: also comprise the overlap discharge component, described overlap discharge component comprises and is coated at trimming punch and the stripper that is slidingly matched with it, is arranged at and is used to promote spring that stripper slides along trimming punch and the keeper that is used to limit the stripper sliding distance on the upper bolster.
CN201120194318XU 2011-06-10 2011-06-10 Back pressure type trimming mold capable of controlling deformation quantity after forging crankshaft trimming CN202087674U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201120194318XU CN202087674U (en) 2011-06-10 2011-06-10 Back pressure type trimming mold capable of controlling deformation quantity after forging crankshaft trimming

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201120194318XU CN202087674U (en) 2011-06-10 2011-06-10 Back pressure type trimming mold capable of controlling deformation quantity after forging crankshaft trimming

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Publication Number Publication Date
CN202087674U true CN202087674U (en) 2011-12-28

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102601211A (en) * 2012-03-23 2012-07-25 浙江正昌锻造股份有限公司 Closed trimming die
CN102814384A (en) * 2012-07-30 2012-12-12 苏州戴尔菲精密机械科技有限公司 Clamping plate molding die
CN104384417A (en) * 2014-11-19 2015-03-04 辽宁五一八内燃机配件有限公司 Die forging crankshaft and connecting-rod flash cutting die device
CN104493041A (en) * 2014-12-24 2015-04-08 舟山市7412工厂 Part head cold heading edge cutting processing mold
CN105312401A (en) * 2014-07-31 2016-02-10 桂林福达重工锻造有限公司 Device facilitating rapid maintenance of forge piece trimming mold
CN105312400A (en) * 2014-07-31 2016-02-10 桂林福达重工锻造有限公司 Three-dimensional trimming die capable of repairing parts quickly
CN106424522A (en) * 2016-11-29 2017-02-22 上海爱知锻造有限公司 Crankshaft trimming and correction integrated mold frame
CN106623586A (en) * 2016-12-23 2017-05-10 成都发动机(集团)有限公司 Hot trimming device and method for aviation engine blade type forgings
CN110102631A (en) * 2019-06-03 2019-08-09 遵义航天新力精密铸锻有限公司 Superthin structure non-ferrous metal nearly shaped component edge grinding buster only
CN110270623A (en) * 2018-03-15 2019-09-24 辽宁五一八内燃机配件有限公司 A kind of crankshaft trimming lower die structure

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102601211A (en) * 2012-03-23 2012-07-25 浙江正昌锻造股份有限公司 Closed trimming die
CN102814384A (en) * 2012-07-30 2012-12-12 苏州戴尔菲精密机械科技有限公司 Clamping plate molding die
CN105312401A (en) * 2014-07-31 2016-02-10 桂林福达重工锻造有限公司 Device facilitating rapid maintenance of forge piece trimming mold
CN105312400A (en) * 2014-07-31 2016-02-10 桂林福达重工锻造有限公司 Three-dimensional trimming die capable of repairing parts quickly
CN104384417A (en) * 2014-11-19 2015-03-04 辽宁五一八内燃机配件有限公司 Die forging crankshaft and connecting-rod flash cutting die device
CN104493041A (en) * 2014-12-24 2015-04-08 舟山市7412工厂 Part head cold heading edge cutting processing mold
CN104493041B (en) * 2014-12-24 2017-06-20 舟山市7412工厂 Part head cold-heading trimming processing mold
CN106424522A (en) * 2016-11-29 2017-02-22 上海爱知锻造有限公司 Crankshaft trimming and correction integrated mold frame
CN106623586A (en) * 2016-12-23 2017-05-10 成都发动机(集团)有限公司 Hot trimming device and method for aviation engine blade type forgings
CN110270623A (en) * 2018-03-15 2019-09-24 辽宁五一八内燃机配件有限公司 A kind of crankshaft trimming lower die structure
CN110102631A (en) * 2019-06-03 2019-08-09 遵义航天新力精密铸锻有限公司 Superthin structure non-ferrous metal nearly shaped component edge grinding buster only

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20111228

Termination date: 20140610

C17 Cessation of patent right