CN106239043B - A kind of processing method of engine link - Google Patents
A kind of processing method of engine link Download PDFInfo
- Publication number
- CN106239043B CN106239043B CN201610632636.7A CN201610632636A CN106239043B CN 106239043 B CN106239043 B CN 106239043B CN 201610632636 A CN201610632636 A CN 201610632636A CN 106239043 B CN106239043 B CN 106239043B
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- China
- Prior art keywords
- connecting rod
- big end
- head bore
- end hole
- gonnecting
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- 238000003672 processing method Methods 0.000 title claims abstract description 13
- 238000005336 cracking Methods 0.000 claims abstract description 10
- 230000000630 rising Effects 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000005520 cutting process Methods 0.000 claims abstract description 6
- 238000003801 milling Methods 0.000 claims abstract description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P2700/00—Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
- B23P2700/04—Connecting rods
Abstract
The present invention relates to a kind of processing method of engine link, it comprises the following steps：（a）Connecting rod two end face is first roughly ground, bores and expands small head bore, then heavy boring size head bore, the small head bore of half right boring, subsequent milling bolt boss, bore or attack bolt hole deburring（b）Correspond in big end hole inward flange at the disconnected plane that rises, carry out wire cutting and form V-arrangement splitter；The V-arrangement splitter is symmetrical on the disconnected plane that rises, to form initial collapse source；（c）150 ~ 250 DEG C are heated to connecting rod, then the two-way voussoir of hydraulic cylinder drive moves down press-in semicircle and moves in set, promotes semicircle to move set and acts on big end hole inner wall, big end hole moment is risen disconnected and connecting rod cap is separated with gonnecting rod body, spoons cold water；（d）The connecting rod for rising and having no progeny is finished, forms the cracking connecting rod finished product that rises.By being heated to connecting rod, cold water is spooned after connecting rod cap is separated with gonnecting rod body, can not only so improve the intensity of engine link, moreover it is possible to improves connecting rod cap and gonnecting rod body and rises the levelness of disconnected plane.
Description
Technical field
The invention belongs to the manufacture field of metal parts, and in particular to a kind of processing method of engine link.
Background technology
Connecting rod is one of important moving component on engine, its effect is that the gas pressure for bearing piston passes to song
Axis, and the reciprocating motion of piston is changed into the rotary motion of bent axle, with external output power, thus gas in main carrying cylinder
The rotating inertia force of impact force and bent axle of body detonation, so as to need to subject the alternate loads such as compression, stretching, bending.
In order to ensure that the quality that the bent axle under running at high speed is in after equilibrium state and the processing for facilitating connecting rod all the time is divided
Group, not only has connecting rod higher dimension precision requirement, but also also has stringent control to its quality tolerance.Existing connecting rod life
Production. art be mainly first split type connecting rod rough forging blank and then parts processing gonnecting rod body, connecting rod cap, again fit processing big end hole,
Small head bore, wherein parts processing gonnecting rod body, connecting rod cap include processing gonnecting rod body, the faying face and bolt hole of connecting rod cap.It is overall
Manufacturing procedure is various, and high to the requirement on machining accuracy of gonnecting rod body, connecting rod cap faying face and bolt hole, causes Machining of Connecting Rod
Cost increase；In addition because the scale error accumulation general that the production technology process is various, mechanical processing technique is poor, larger
The assembly precision of gonnecting rod body and connecting rod cap is caused to reduce, substantially reduce the reliability of connecting rod and durability.
The content of the invention
A kind of processing method of engine link is provided the invention aims to overcome the deficiencies in the prior art.
To reach above-mentioned purpose, the technical solution adopted in the present invention is：A kind of processing method of engine link, it is described
Engine link includes gonnecting rod body and the connecting rod cap installed in the gonnecting rod body end, the gonnecting rod body and the connecting rod cap it
Between be connected by the more bolts installed in its side, big end hole, institute are offered between the gonnecting rod body and the connecting rod cap
The other end for stating gonnecting rod body offers small head bore, and the center of circle of the big end hole is in the gonnecting rod body and rising for the connecting rod cap is disconnected
In plane；It comprises the following steps：
(a) connecting rod two end face is first roughly ground, bores and expands small head bore, then heavy boring size head bore, the small head bore of half right boring, subsequent milling bolt
Boss, bore or attack bolt hole deburring；
(b) correspond in big end hole inward flange at the disconnected plane that rises, carry out wire cutting and form V-arrangement splitter；The V-arrangement cracking
Groove is symmetrical on the disconnected plane that rises, to form initial collapse source；
(c) connecting rod is transported to by cracking station by turntable, moves two pieces of semicircles and cover and diamond shape interior into the big end hole
Pin enters in the small head bore；Again, rhombus pin moves under slide unit drive, abuts against side of the big end hole away from small head bore
Crack on axis, spring bearer plate compresses connecting rod；It is heated to 150~250 DEG C to connecting rod, then hydraulic cylinder drives two-way voussoir to moving down
Dynamic pressure enters semicircle and moves in set, promotes semicircle to move set and acts on big end hole inner wall, big end hole moment, which is risen, breaks and connecting rod cap and connecting rod
Body separates, and spoons cold water；Finally, hydraulic cylinder drives two-way voussoir to move up, and leaves the semicircle and moves set, slide unit drives diamond shape
Pin returns to original position, makes connecting rod cap and the gonnecting rod body accurate reset of alignment rapidly split；
(d) connecting rod for rising and having no progeny is finished, forms the cracking connecting rod finished product that rises.
Optimally, the thimble rod being in the gonnecting rod body on same straight line is also connected with the connecting rod cap.
Optimally, step (d) is specially first to assemble, press bushing, finishing bushing, chamfering, then refines the disconnected plane that rises, then half essence
Boring, right boring size head bore, then honing connecting rod size head bore, then detect a flaw, clean, it is re-weighed, is grouped, marking, finally examines and obtain
Finished product.
Since above-mentioned technical proposal is used, the present invention has following advantages compared with prior art：Inventive engine connects
The processing method of bar, by being heated to connecting rod, spoons cold water after connecting rod cap is separated with gonnecting rod body, can not only so carry
The intensity of high engine link, it is not necessary to debris removal, moreover it is possible to improve connecting rod cap and gonnecting rod body and rise the levelness of disconnected plane.
Brief description of the drawings
Fig. 1 is the structure diagram of inventive engine connecting rod；
Wherein, 1, gonnecting rod body；11st, small head bore；2nd, connecting rod cap；21st, thimble rod；3rd, big end hole；4th, bolt.
Embodiment
The preferred embodiment of the invention is described in detail below in conjunction with attached drawing.
Embodiment 1
Engine link as shown in Figure 1, including gonnecting rod body 1 and the connecting rod cap 2 installed in 1 end of gonnecting rod body, connecting rod
It is connected between body 1 and connecting rod cap 2 by the more bolts 4 installed in its side, is offered between gonnecting rod body 1 and connecting rod cap 2
Big end hole 3, the other end of gonnecting rod body 1 offer small head bore 11, and the center of circle of big end hole 3 is in gonnecting rod body 1 and rising for connecting rod cap 2 is disconnected
In plane；The thimble rod 21 being in gonnecting rod body 1 on same straight line is also connected with connecting rod cap 2.
The processing method of above-mentioned engine link, generally may be referred to method and apparatus in CN201310021032.5,
Comprise the following steps：
(a) roughly grind connecting rod two end face → brill and expand small head bore 11 → again heavy boring big end hole 3 and small head bore 11, the small head bore of half right boring
11 → milling bolt boss → bore or attack bolt hole, deburring；These manufacturing procedures, skilled addressee will appreciate that how real
It is existing.
(b) correspond in 3 inward flange of big end hole at the disconnected plane that rises, carry out wire cutting and form V-arrangement splitter；The V-arrangement is split
It is symmetrical on the disconnected plane that rises to solve groove, to form initial collapse source；Specially：Using the wire cutting silk of a diameter of 0.12mm,
The V-arrangement splitter that wire cutting two is symmetrically and subtended angle is 60 °, groove depth is 0.6mm, each V-arrangement splitter are disconnected flat on rising
Face is symmetrical；
(c) connecting rod is transported to by cracking station by turntable, uplifting device lifts connecting rod, makes two pieces and two-way voussoir phase
Matched semicircle move set enter big end hole 3 in and rhombus pin enter small head bore 11 in；Again, rhombus pin drives in slide unit and moves down
It is dynamic, side of the big end hole 3 away from small head bore 11 is abutted against on cracking axis, spring bearer plate compresses connecting rod；Connecting rod is heated to
250 DEG C, then hydraulic cylinder drives two-way voussoir to move down press-in semicircle to move in set, promote semicircle to move set and act in big end hole 3
Wall, 3 moment of big end hole is risen disconnected and connecting rod cap 2 is separated with gonnecting rod body 1, spoons cold water (0 DEG C)；Finally, hydraulic cylinder drives two-way
Voussoir moves up, and leaves semicircle and moves set, and slide unit drives rhombus pin to return to original position, makes the connecting rod cap that splits and gonnecting rod body right rapidly
Neat accurate reset；
(d) connecting rod for rising and having no progeny is finished, forms the cracking connecting rod finished product that rises：Specially assemble, press bushing, finishing bushing, fall
The right boring of angle → fine grinding two sides → half, right boring size head bore → honing connecting rod size head bore → flaw detection, cleaning, be re-weighed, be grouped,
Marking → inspection obtains finished product → finished product and hands over storehouse；These manufacturing procedures, skilled addressee will appreciate that how to realize.
Embodiment 2
The present embodiment provides a kind of processing method of the engine link in embodiment 1, its step and the base in embodiment 1
This is consistent, unlike：150 DEG C are heated to connecting rod, then the two-way voussoir of hydraulic cylinder drive moves down press-in semicircle and moves in set,
Promote semicircle to move set and act on 3 inner wall of big end hole, 3 moment of big end hole is risen disconnected and connecting rod cap 2 is separated with gonnecting rod body 1, is spooned cold
Water (30 DEG C).
Embodiment 3
The present embodiment provides a kind of processing method of the engine link in embodiment 1, its step and the base in embodiment 1
This is consistent, unlike：200 DEG C are heated to connecting rod, then the two-way voussoir of hydraulic cylinder drive moves down press-in semicircle and moves in set,
Promote semicircle to move set and act on 3 inner wall of big end hole, 3 moment of big end hole is risen disconnected and connecting rod cap 2 is separated with gonnecting rod body 1, is spooned cold
Water (20 DEG C).
The engine link processed in embodiment 1 to 3 is tested for the property, the results are shown in table 1.
The test data list of 1 engine link of table
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar can understand present disclosure and implement according to this, and it is not intended to limit the scope of the present invention.It is all according to the present invention
The equivalent change or modification that Spirit Essence is made, should be covered by the protection scope of the present invention.
Claims (3)
1. a kind of processing method of engine link, the engine link includes gonnecting rod body and installed in the connecting rod body end
The connecting rod cap in portion, is connected between the gonnecting rod body and the connecting rod cap by the more bolts installed in its side, the company
Big end hole is offered between the body of rod and the connecting rod cap, the other end of the gonnecting rod body offers small head bore, the big end hole
The center of circle is in the rising in disconnected plane of the gonnecting rod body and the connecting rod cap；It is characterized in that, it comprises the following steps：
（a）Connecting rod two end face is first roughly ground, bores and expands small head bore, then heavy boring size head bore, the small head bore of half right boring, subsequent milling bolt are convex
Platform, bore or attack bolt hole deburring；
（b）Correspond in big end hole inward flange at the disconnected plane that rises, carry out wire cutting and form V-arrangement splitter；The V-arrangement splitter closes
It is symmetrical in the disconnected plane that rises, to form initial collapse source；
（c）Connecting rod is transported to by cracking station by turntable, make two pieces of semicircles move set enter the big end hole in and rhombus pin into
Enter in the small head bore；Again, rhombus pin moves under slide unit drive, side of the big end hole away from small head bore is abutted against cracking
On axis, spring bearer plate compresses connecting rod；150 ~ 250 DEG C are heated to connecting rod, then hydraulic cylinder drives two-way voussoir to move down pressure
Enter semicircle to move in set, promote semicircle to move set and act on big end hole inner wall, big end hole moment is risen disconnected and connecting rod cap divides with gonnecting rod body
From spooning cold water；Finally, hydraulic cylinder drives two-way voussoir to move up, and leaves the semicircle and moves set, slide unit drives rhombus pin to return
To original position, make connecting rod cap and the gonnecting rod body accurate reset of alignment rapidly split；
（d）The connecting rod for rising and having no progeny is finished, forms the cracking connecting rod finished product that rises.
2. the processing method of engine link according to claim 1, it is characterised in that：Also integrally connect on the connecting rod cap
It is connected to the thimble rod being in the gonnecting rod body on same straight line.
3. the processing method of engine link according to claim 1, it is characterised in that：Step（d）Specially first assemble,
Bushing, finishing bushing, chamfering are pressed, then refines the disconnected plane that rises, then half right boring, right boring size head bore, then honing connecting rod size head bore,
Detect a flaw, clean again, be re-weighed, be grouped, marking, finally examine and obtain finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610632636.7A CN106239043B (en) | 2016-08-04 | 2016-08-04 | A kind of processing method of engine link |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610632636.7A CN106239043B (en) | 2016-08-04 | 2016-08-04 | A kind of processing method of engine link |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106239043A CN106239043A (en) | 2016-12-21 |
| CN106239043B true CN106239043B (en) | 2018-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610632636.7A Active CN106239043B (en) | 2016-08-04 | 2016-08-04 | A kind of processing method of engine link |
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| Country | Link |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106994496B (en) * | 2017-04-14 | 2018-12-14 | 江苏大学 | A kind of forging method of steel bimetallic cracking connecting-rod |
| CN107962361B (en) * | 2017-12-13 | 2020-02-07 | 薛璐浩 | Connecting rod tooth form and machining method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2511428Y (en) * | 2001-11-30 | 2002-09-18 | 吉林大学 | Apparatus for machining engine link |
| CN101704180A (en) * | 2009-09-14 | 2010-05-12 | 奇瑞汽车股份有限公司 | Processing method of engine connecting rod |
| CN103939454A (en) * | 2013-01-21 | 2014-07-23 | 重庆长安汽车股份有限公司 | Engine cracking connecting rod and machining method thereof |
| CN105290743A (en) * | 2015-12-01 | 2016-02-03 | 吉林大学 | Method for cracking hardened and tempered forged steel connection rods |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07100712A (en) * | 1993-09-30 | 1995-04-18 | Toyota Motor Corp | Manufacture of aluminum alloy system connecting rod |
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2016
- 2016-08-04 CN CN201610632636.7A patent/CN106239043B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2511428Y (en) * | 2001-11-30 | 2002-09-18 | 吉林大学 | Apparatus for machining engine link |
| CN101704180A (en) * | 2009-09-14 | 2010-05-12 | 奇瑞汽车股份有限公司 | Processing method of engine connecting rod |
| CN103939454A (en) * | 2013-01-21 | 2014-07-23 | 重庆长安汽车股份有限公司 | Engine cracking connecting rod and machining method thereof |
| CN105290743A (en) * | 2015-12-01 | 2016-02-03 | 吉林大学 | Method for cracking hardened and tempered forged steel connection rods |
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| Publication number | Publication date |
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| CN106239043A (en) | 2016-12-21 |
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Denomination of invention: A machining method of engine connecting rod Effective date of registration: 20220419 Granted publication date: 20180504 Pledgee: China Construction Bank Corporation Suzhou Xiangcheng sub branch Pledgor: Suzhou Lida Foundry Co.,Ltd. Registration number: Y2022320000177 |