CN104128549A - Die for powder forging of automobile connecting rod - Google Patents

Die for powder forging of automobile connecting rod Download PDF

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Publication number
CN104128549A
CN104128549A CN201410344463.XA CN201410344463A CN104128549A CN 104128549 A CN104128549 A CN 104128549A CN 201410344463 A CN201410344463 A CN 201410344463A CN 104128549 A CN104128549 A CN 104128549A
Authority
CN
China
Prior art keywords
die
sleeve
core bar
connecting rod
cushion block
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410344463.XA
Other languages
Chinese (zh)
Inventor
杨雪峰
张浩泽
肖香普
杨维忠
吴继云
张启龙
刘晓红
马燕鸿
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yuxi Dahongshan Mining Co Ltd
Original Assignee
Yuxi Dahongshan Mining Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yuxi Dahongshan Mining Co Ltd filed Critical Yuxi Dahongshan Mining Co Ltd
Priority to CN201410344463.XA priority Critical patent/CN104128549A/en
Publication of CN104128549A publication Critical patent/CN104128549A/en
Pending legal-status Critical Current

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Abstract

The invention belongs to the field of dies and particularly relates to a die for powder forging of an automobile connecting rod. The die comprises an upper die system, a lower die system and a guide column arranged between the upper die system and the lower die system, wherein the upper die system comprises an upper die plate and an upper die plate base plate located above the upper die plate, and the lower die system comprises a lower cushion block and an ejection rod capable of sliding in a central hole of the lower cushion block. A large sleeve, a large core rod, a small sleeve, a small core rod and an upper press head are respectively installed under the upper die plate. A lower base plate, a lower press head, a female die and a die sleeve are sequentially installed above the lower cushion block, the female die is assembled in the die sleeve, and the lower press head is located in the female die. The die sleeve is respectively connected with a guide sleeve of the guide column and the lower base plate fixedly. The die is reasonable in structural design and is adopted to perform the powder forging of the automobile connecting rod, the accuracy of geometric dimension of the connecting rod is ensured, processing procedures of a following-up machine are decreased, the material utilization rate is improved, the production cost is reduced, and the production efficiency is improved.

Description

A kind of mould of power forging automobile connecting bar
Technical field
The invention belongs to mould applications, be specifically related to a kind of mould of power forging automobile connecting bar.
Background technology
Engine is the heart of automobile, and connecting rod is the strength member of engine.The alternate stress being subject in engine due to connecting rod is very big, so connecting rod is very high to intensity, requirement on machining accuracy.Conventional production method is to adopt alloy steel casting after forging, and machining forms.But the connecting rod that routine techniques forges out at present exists, mass deviation is large, precision is low (dimensional accuracy guarantees by machined), cause follow-up machining amount very large, generally also to pass through car, milling, brill, boring, honing etc. more than 30 and process to operation, therefore cause the series of problems such as the production cycle is long, stock utilization is low, production cost rising.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, a kind of mould of power forging automobile connecting bar is provided, it is simple in structure, reasonable in design, using metal dust as raw material, by operations such as sintering, heating, in this mould, carry out forge hot pressure, the comprehensive mechanical performance of the each side such as the precision degree of forging and stamping connecting rod out, intensity is significantly improved and enhanced.
Technical scheme of the present invention is achieved in that a kind of mould of power forging connecting rod, comprise the guide pillar between modular system, lower modular system and upper and lower modular system, it is characterized in that: described upper modular system comprises cope match-plate pattern and be positioned at the cope match-plate pattern backing plate of this cope match-plate pattern top, the below of described cope match-plate pattern is separately installed with large sleeve, large core bar and small sleeve, little core bar and seaming chuck; Described lower modular system comprises lower cushion block and the push rod that can slide in this lower cushion block centre bore; Described lower cushion block top is provided with lower bolster, push-down head, former and die sleeve successively, and described former is assemblied in die sleeve, and described push-down head is positioned at this former; Described die sleeve is fixedly connected with lower bolster with described guide pillar guide pin bushing respectively.
Preferably, the spacing of described large core bar and little core bar and connecting rod two ends centre-to-centre spacing match; The large and small hole internal diameter at this large core bar and little core bar external diameter and connecting rod two ends matches; It is conical that described large core bar and little core bar lower end are.
Preferably, described seaming chuck, large sleeve, large core bar, small sleeve, little core bar, former and push-down head adopt 5GrNiMo, 3Cr2W8V or H13 materials processing to form.
Compared with prior art, the invention has the beneficial effects as follows:
The mould of power forging automobile connecting bar provided by the invention, reasonable in design, adopt this mould to carry out power forging automobile connecting bar, not only guaranteed the precision of connecting rod physical dimension, reduced follow-up machining processes, improve stock utilization, reduced production cost, improved production efficiency, and after forge hot, the material of goods is even, compare with traditional steel alloy forge hot goods, comprehensive mechanical performance is significantly improved and enhanced.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of mould of power forging automobile connecting bar;
In figure: 1-screw rod, 2-nut, 3-spring pad, 4-seaming chuck, the large sleeve of 5-, the large core bar of 6-, 7-cope match-plate pattern backing plate, 8-M20 bolt, 9-D20 spring washer, 10-M16 bolt, 11-D16 spring washer, the little core bar of 12-, 13-M12 bolt, 14-D12 spring washer, 15-small sleeve, 16-cope match-plate pattern, 17-guide pillar, 18-former, 19-die sleeve, 20-screw, 21-spring, 22-push-down head, 23-lower bolster, 24-lower cushion block, 25-push rod, 26-square nut, the upper modular system of 27-, modular system under 28-, 29-connecting rod forging.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, the present invention is a kind of mould of power forging connecting rod.Large sleeve 5, large core bar 6 and small sleeve 15, little core bar 12 are combined with seaming chuck 4, by M16 bolt 10, D16 spring washer 11, M12 bolt 13, D12 spring washer 14, be connected on cope match-plate pattern 16 respectively, by M20 bolt 8, D20 spring washer 9 and cope match-plate pattern backing plate 7, connect and compose whole on modular system 27.Upper modular system 27 is fixedly connected with the upper chopping block of forging press.Lower modular system 28 comprises former 18 and die sleeve 19, lower bolster 23 positions by pin with die sleeve 19, guide pillar 17 is connected with die sleeve 19 by tight fit, and be fixed with screw 20, push-down head 22 packs former 18 into, integral body is placed on lower cushion block 24 afterwards, and by screw rod 1, nut 2, packing ring 3, square nut 26, spring 21, is fixed on the lower chopping block of forging press, and push rod 25 is from forging press fit beneath.
In the assembling process of whole mould, upper modular system 27 carries out guide-localization with lower modular system 28 by guide pillar 17, and in the whole course of work, guide pillar 17 does not depart from modular system.Large core bar 6 and little core bar 12) bottom while all having suitable tapering forging and stamping, what be convenient to location and blank enters die-forging of forge pieces smoothly.The die cavity of putting into former 18 after will connecting rod preset blank heating, on forging press, chopping block drives cope match-plate pattern 16 to press down together with seaming chuck 4, blank forge and press and is filled in seaming chuck 4, the formed enclosed cavity of push-down head 22 and densification; Then chopping block fast demoulding on forging press, returns cope match-plate pattern 16 and seaming chuck 4 and by forging press linkage structure, makes to move a segment distance on push rod 25, ejects the connecting rod forging 29 being forged into, thereby completes forging molding.
Former 18, push-down head 22 adopt block of metal materials processing to become, and are inlaid in die sleeve 19.Former 18, push-down head 22 and die sleeve 19 are processed respectively, last whole assembling, the use amount that has reduced special rolling-mill section has reduced mold materials cost, forging for different model connecting rod, only need to change former 18 and push-down head 22 and not need whole lower modular system 28 to modify, greatly having improved the applicability of this mould.
The crucial stressed assemblies such as seaming chuck 4, large sleeve 5, large core bar 6, small sleeve 15, little core bar 12, former 18 and push-down head 22 adopt 5GrNiMo, 3Cr2W8V or H13 materials processing to form, it has higher intensity and hardness, cold & heat fatigue resisting good, and has good quenching degree.Other less important stressed assembly processes with 45 steel, to guarantee that this mould structure is durable in use, has again a good economy.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims (3)

1. the mould of a power forging connecting rod, comprise the guide pillar (17) between modular system (27), lower modular system (28) and upper and lower mould system, it is characterized in that: described upper modular system (27) comprises cope match-plate pattern (16) and be positioned at the cope match-plate pattern backing plate (7) of this cope match-plate pattern (16) top, the below of described cope match-plate pattern (16) is separately installed with large sleeve (5), large core bar (6), small sleeve (15), little core bar (12) and seaming chuck (4); Described lower modular system (28) comprises lower cushion block (24) and the push rod (25) that can slide in this lower cushion block (24) centre bore; Described lower cushion block (24) top is provided with lower bolster (23), push-down head (22), former (18) and die sleeve (19) successively; Described former (18) is assemblied in die sleeve (19), and described push-down head (22) is positioned at this former (18); Described die sleeve (19) is fixedly connected with lower bolster (23) with described guide pillar guide pin bushing (17) respectively.
2. the mould of a kind of power forging automobile connecting bar according to claim 1, is characterized in that: described large core bar (6) and the spacing of little core bar (12) and connecting rod two ends centre-to-centre spacing match; The large and small hole internal diameter at this large core bar (6) and little core bar (12) external diameter and connecting rod two ends matches; It is conical that described large core bar (6) and little core bar (12) lower end are.
3. the mould of a kind of power forging automobile connecting bar according to claim 1, is characterized in that: described seaming chuck (4), large sleeve (5), large core bar (6), small sleeve (15), little core bar (12), former (18) and push-down head (22) adopt 5GrNiMo, 3Cr2W8V or H13 material to process.
CN201410344463.XA 2014-07-18 2014-07-18 Die for powder forging of automobile connecting rod Pending CN104128549A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410344463.XA CN104128549A (en) 2014-07-18 2014-07-18 Die for powder forging of automobile connecting rod

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410344463.XA CN104128549A (en) 2014-07-18 2014-07-18 Die for powder forging of automobile connecting rod

Publications (1)

Publication Number Publication Date
CN104128549A true CN104128549A (en) 2014-11-05

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CN201410344463.XA Pending CN104128549A (en) 2014-07-18 2014-07-18 Die for powder forging of automobile connecting rod

Country Status (1)

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CN (1) CN104128549A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111396444A (en) * 2020-05-13 2020-07-10 上汽通用汽车有限公司 Piston connecting rod, connecting rod blank forging die and piston connecting rod manufacturing method

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0696688A1 (en) * 1994-08-12 1996-02-14 Honda Giken Kogyo Kabushiki Kaisha Process for producing split type mechanical part
US5544413A (en) * 1994-06-10 1996-08-13 Omni Forge, Inc. Method and apparatus for manfacturing a flashless metal connecting rod
JPH1071446A (en) * 1996-03-29 1998-03-17 Ascoforge Safe Manufacture of forged connecting rod
US6427326B1 (en) * 1999-06-17 2002-08-06 Honda Giken Kogyo Kabushiki Kaisha Method of manufacturing connecting rod
JP2010201495A (en) * 2009-03-05 2010-09-16 Sanjo Machine Works Ltd Method for manufacturing connecting rod, and coining die apparatus used therefor
CN102240767A (en) * 2011-05-13 2011-11-16 天津海东汽车配件有限公司 Annular forging die for two-point press and machining process method for annular forging die
CN103521669A (en) * 2013-10-15 2014-01-22 武汉桂坤科技有限公司 Engine connecting rod powder forging method
CN204135257U (en) * 2014-07-18 2015-02-04 玉溪大红山矿业有限公司 A kind of mould of power forging automobile connecting bar

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5544413A (en) * 1994-06-10 1996-08-13 Omni Forge, Inc. Method and apparatus for manfacturing a flashless metal connecting rod
EP0696688A1 (en) * 1994-08-12 1996-02-14 Honda Giken Kogyo Kabushiki Kaisha Process for producing split type mechanical part
JPH1071446A (en) * 1996-03-29 1998-03-17 Ascoforge Safe Manufacture of forged connecting rod
US6427326B1 (en) * 1999-06-17 2002-08-06 Honda Giken Kogyo Kabushiki Kaisha Method of manufacturing connecting rod
JP2010201495A (en) * 2009-03-05 2010-09-16 Sanjo Machine Works Ltd Method for manufacturing connecting rod, and coining die apparatus used therefor
CN102240767A (en) * 2011-05-13 2011-11-16 天津海东汽车配件有限公司 Annular forging die for two-point press and machining process method for annular forging die
CN103521669A (en) * 2013-10-15 2014-01-22 武汉桂坤科技有限公司 Engine connecting rod powder forging method
CN204135257U (en) * 2014-07-18 2015-02-04 玉溪大红山矿业有限公司 A kind of mould of power forging automobile connecting bar

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
洪慎章: "《特种成形实用技术》", 30 September 2008, article "粉锻模设计", pages: 188-193 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111396444A (en) * 2020-05-13 2020-07-10 上汽通用汽车有限公司 Piston connecting rod, connecting rod blank forging die and piston connecting rod manufacturing method

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Application publication date: 20141105