CN105081192B - The method that integral automobile steering section rough forging realizes hot extrusion forging - Google Patents
The method that integral automobile steering section rough forging realizes hot extrusion forging Download PDFInfo
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- CN105081192B CN105081192B CN201510488796.4A CN201510488796A CN105081192B CN 105081192 B CN105081192 B CN 105081192B CN 201510488796 A CN201510488796 A CN 201510488796A CN 105081192 B CN105081192 B CN 105081192B
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- 238000005242 forging Methods 0.000 title claims abstract description 93
- 238000001192 hot extrusion Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 21
- 241001237732 Microtia Species 0.000 claims abstract description 33
- 239000011295 pitch Substances 0.000 claims abstract description 10
- 238000009434 installation Methods 0.000 claims abstract description 4
- 238000001125 extrusion Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 210000005069 ears Anatomy 0.000 claims description 2
- 238000003754 machining Methods 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 206010035039 Piloerection Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000005371 pilomotor reflex Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The present invention proposes the method that integral automobile steering section rough forging realizes hot extrusion forging, comprises the following steps that：（1）The structure of rough forging is improved：Microtia pitches the obtuse angle that the angle between overside face and microtia fork top is 90 100 °, corresponds on microtia fork, big ear fork at the kingpin bore of installation stub and is provided with the first reserved blind hole from the extension of export-oriented center, the second reserved blind hole；（2）Hot extrusion is forged：First pre-forging is completed by common forging press vertical forging, the second pre-forging process obtains rough forging；Then, by special forging equipment hot extrusion, finally blind hole and the second reserved blind hole are reserved in forging first, realize that the hot extrusion of integral automobile steering section blank is forged.Because of new Integral steering section rough forging structure, using special forging equipment, stock utilization, reduction equipment investment and energy consumption is greatly improved, improves follow-up machining efficiency.
Description
Technical field
The present invention relates to the forging method of the knuckle blank in automobile steering system, specifically integral automobile steering section
The method that rough forging realizes hot extrusion forging.
Background technology
The schematic diagram of integral automobile steering section blank as shown in Figure 1, bar portion 1, flange 2, microtia fork 4, big ear fork 5
Form an entirety.
The blank of traditional Integral steering section, managed mostly using horizontal forging, die joint from the bar portion of forging and two
By the central plane horizontal parting of machining kingpin bore, hot extrusion forges blank kingpin bore and is impossible to realize, horizontal forging
Due to slewing journal structure change complexity, projected area greatly, institute's forged blank overlap is big, forging needs very big hitting power, material
Utilization rate is low, machining fork and flange surplus are big, time length.
The content of the invention
The present invention is to provide the method that integral automobile steering section rough forging realizes hot extrusion forging, can realize vertical
Formula hot extrusion extrudes blank kingpin bore, when in the case where ensureing qualified products, significantly saving material, reducing fork processing
Between, improve production efficiency, with solve integral automobile steering section crouch forging formula rough forging forging cost is high, stock utilization is low,
The big problem of fork kingpin bore long processing time, surplus.
The technical scheme is that：The method that integral automobile steering section rough forging realizes hot extrusion forging, specifically
Step is as follows：
（1）The structure of integral automobile steering section rough forging is improved：Integral automobile steering section rough forging, by bar
Portion, flange, microtia fork, big ear fork form an entirety, the upper surface of flange and the central axis of bar portion, microtia fork overside face
The obtuse angle that angle between microtia fork top is 90-100 ° so that the center line along bar portion is that the draft angle in withdrawing pattern direction is
Positive number；Die joint pitches extension from flange face midplane to two ears, and the kingpin bore of installation stub is corresponded on microtia fork, big ear fork
Locate provided with the first reserved blind hole from the extension of export-oriented center, the second reserved blind hole, first reserves in the bottom of blind hole and microtia fork
Wall thickness range between side is 2-10 millimeters, and the wall thickness range between the bottom of the second reserved blind hole and big ear fork medial surface is
The diameter of 1.5-6 millimeters, the first reserved blind hole and the second reserved blind hole is there is allowance 1.5-6 millimeters to determine；
（2）Hot extrusion is forged：First pre-forging, the second pre-forging process are completed by common forging press vertical forging
Obtain the rough forging without the first reserved blind hole and the second reserved blind hole；
Then, the first reserved blind hole and the second reserved blind hole are finally forged in hot extrusion, described special using special forging equipment
With the structure of forging equipment：Including left column, right column, upper beam, underbeam, sliding block, main hydraulic cylinder, bottom knockout hydraulic cylinder, Zuo Li
Post, right column, upper beam, underbeam form frame, and sliding block is oriented to by guiding pair on left column, right column, main hydraulic cylinder installation
On upper beam, main hydraulic cylinder driving sliding block；Bottom knockout hydraulic cylinder is arranged on below underbeam；
Left electric screw mechanism, right electric screw mechanism are separately installed with left column, right column；Left electric screw machine
Structure, the structure of right electric screw mechanism are identical, and concrete structure is：By one-stage gear power passed to by two motors winged
Power, screw pair is passed to by flywheel by wheel again, then power is passed to sliding block by screw pair, so as to realize power output；
Left fixed voussoir, right fixed voussoir are respectively equipped with above sliding block；Voussoir clamping mechanism, wedge are provided with below upper beam
Block clamping mechanism includes left voussoir clamping mechanism, right voussoir clamping mechanism, and left voussoir clamping mechanism is by left side small cylinder, left work
Dynamic voussoir forms, and left side small cylinder drives left movable wedge；Right voussoir clamping mechanism is by right side small cylinder, right movable wedge
Composition, right side small cylinder drive right movable wedge；The upper surface of left movable wedge, right movable wedge upper surface respectively with it is upper
The lower surface of beam is slidably matched；
In use, sliding block moves down in place, voussoir clamping mechanism locking sliding block, tension force caused by forging and stamping is overcome；It is left electronic
Screw mechanism, right electric screw mechanism, laterally realize that crushing failure at high speed forges；
The process that hot extrusion is finally forged：Because the angle that microtia is pitched between overside face and microtia fork top is obtuse angle, eventually
The blank that forging blank tilts mould in certain angle guarantee in mould can be stripped, and such design makes vertical forging blank just have
Normal pattern draft, it is possible to it is horizontal to divide mould along large and small ear fork circular bottom surface along flange face, bar portion in drag chamber,
Big ear fork and microtia fork are in upper model cavity；Second pre-forging process blank is put under hot the lower mould of hot extrusion kingpin bore
In tool, being moved down by special forging equipment sliding block makes mould and lower mould matched moulds on extruding kingpin bore, by special forging after matched moulds
The voussoir clamping mechanism of equipment forms the locked mode of upper and lower mould, to ensure the upper and lower mould of finish-forging in the reserved blind hole and second of extruding first
Locked mode during reserved blind hole, after locked mode, left and right two electric screws mechanism quickly promotes the axially large and small ear fork extruding of two extrusion dies,
Obtain the first reserved blind hole（Kingpin bore）And the second reserved blind hole（Kingpin bore）While blank is full of die cavity, then electronic spiral shell
Revolving mechanism drives two to extrude mandrel returns, the voussoir clamping mechanism return of special forging equipment, after sliding block drives upper mould return, under
Blank in the lower mould of liftout hydraulic cylinder ejection, realize that integral automobile steering section blank hot extrusion extrudes the first reserved blind hole and second
Reserved blind hole.
Beneficial effect：Because of new Integral steering section rough forging structure, using special forging equipment, make entirety
Formula knuckle can go out blank kingpin bore using Vertical Heat extrusion forging, save material more than 30%, and production equipment tonnage declines
50% or so, hot extrusion extrude blank kingpin bore, make the processed finished products time improve 10% or so, be greatly improved stock utilization,
Reduce equipment investment and energy consumption, improve follow-up machining efficiency.
Brief description of the drawings
Fig. 1 is the structural representation of existing integral automobile steering section.
Fig. 2 is integral automobile steering section rough forging structural representation of the present invention.
Fig. 3 is special forging equipment schematic diagram of the present invention.
Fig. 4 is special forging equipment right view of the present invention.
Fig. 5 is the integral automobile steering section hot-extrusion mold structural representation of the present invention.
Fig. 6 is the working state figure of the integral automobile steering section hot-extrusion mold of invention design.
Wherein：1 is bar portion；2 be flange；3 be bar portion center line and vertical with flange 2；4 be that microtia is pitched；5 be that big ear is pitched；6
For die joint；7 be that big ear fork and microtia pitch stub centerline hole；8 be that microtia pitches kingpin bore；9 be that big ear pitches kingpin bore；10 be to change
After becoming microtia fork draft angle；A is the obtuse angle between microtia 4 overside faces of fork and flange；β is that microtia is pitched and big ear pitches center line and water
Angle between horizontal line；11 be left column；12 be left electric screw mechanism；13 be left side small cylinder；14 be left movable wedge
Block；15 be left fixed voussoir；16 be main hydraulic cylinder；17 be upper beam；18 be right movable wedge；19 be right fixed voussoir；20 be cunning
Block；21 be right side small cylinder；22 be right electric screw mechanism；2201 be screw pair；2202 be sliding block；2203 be flywheel；
2204 be motor；2205 be one-stage gear；23 be right column；24 be bottom knockout hydraulic cylinder；25 be underbeam；26 be hot-extrusion mold
Upper mould；27 be mould under hot-extrusion mold；28 be that big ear pitches drift；29 be that microtia pitches drift.
Embodiment
Special forging equipment as shown in Figure 3, including left column 11, right column 23, upper beam 17, underbeam 25, sliding block 20, master
Hydraulic cylinder 16, bottom knockout hydraulic cylinder 24, left column 11, right column 23, upper beam 17, underbeam 25 form frame, and sliding block 20 is by leading
It is oriented to pair on left column 11, right column 23, main hydraulic cylinder 16 is arranged on upper beam 17, and main hydraulic cylinder 16 drives sliding block 20；
Bottom knockout hydraulic cylinder 24 is arranged on below underbeam, and left electric screw mechanism 12, right electricity are separately installed with left column, right column
Dynamic screw mechanism 22；Left fixed voussoir 15, right fixed voussoir 19 are respectively equipped with above sliding block；Voussoir is provided with below upper beam to lock
Mold mechanism, voussoir clamping mechanism include left voussoir clamping mechanism, right voussoir clamping mechanism, and left voussoir clamping mechanism is by the small liquid in left side
Cylinder pressure 13, left movable wedge 14 form, and left side small cylinder 13 drives left movable wedge 14；Right voussoir clamping mechanism is small by right side
Hydraulic cylinder 21, right movable wedge 18 form, and right side small cylinder 21 drives right movable wedge 18；The upper end of left movable wedge 14
The lower surface of face, the upper surface of right movable wedge 18 respectively with upper beam 17 is slidably matched；
In use, sliding block 20 moves down in place, voussoir clamping mechanism locking sliding block, tension force caused by forging and stamping is overcome；Left electricity
Dynamic screw mechanism, right electric screw mechanism laterally realize that crushing failure at high speed forges.
As shown in Figure 3, Figure 4, in the present invention, the structure of left electric screw mechanism and right electric screw mechanism is identical, right
The structure of electric screw mechanism is：Power is passed to flywheel 2203 by one-stage gear 2205 by two motors 2204, by flying
Power is passed to screw pair 2201 by wheel 2203 again, then power is passed to sliding block 2202 by screw pair 2201, so as to realize electricity
The power output of dynamic screw mechanism.
Bottom knockout hydraulic cylinder can be according to different products, to adjust angle of inclination.
The present invention uses the major function of special forging equipment to be as shown in Figure 3：Power of the sliding block in main hydraulic cylinder
Can be vertically downward under effect（Or upwards）Carry out quick-make（Or open）Mould；Closure（Or open）After mould, left and right two is vertical
Band dynamic voussoir can be caught in two oil cylinders on post respectively（Or exit）Mould locking is realized between upper beam and sliding block（Or unlock）；Locking
（Or unlock）After mould, the two active drifts of electric screw press structure band of left and right transverse movement can carry out crushing failure at high speed forging
Make（Or retract）；When needing to eject forging, material jacking mechanism according to different products, can adjust the angle of inclination of ejector beam.
In the present invention, the structure of the left electric screw mechanism and right electric screw mechanism is prior art, there is two kinds
Situation：
The first, can be the screw conveyer of direct-drive electric screw press, including motor, directly be driven by motor
Dynamic flywheel, the screw rod being fixed on flywheel, the sliding block driven by screw rod by screw pair；
Second, can be the screw conveyer of the electric screw press by one-stage gear transmission, including multiple
Motor, travelling gear is fixed with the rotating shaft of multiple motors, travelling gear engages with the edge of flywheel, realizes power transmission；Spiral shell
Bar is fixedly connected with flywheel, the sliding block driven by screw rod by screw pair.
As shown in Fig. 2, Fig. 5, Fig. 6, it is as follows to further describe the present invention：Integral automobile steering section rough forging realizes heat
The method of extrusion forging, is comprised the following steps that：
（1）The structure of integral automobile steering section rough forging is improved：Integral automobile steering section rough forging, including bar
Portion 1, flange 2, right, the left both sides of the upper surface of flange 2 are respectively equipped with big ear fork 5 and microtia fork 4；In specific implementation process, intentionally
It is the obtuse angle more than 90 ° less than 100 ° by the angle design for change between the overside face of microtia fork 4 and microtia fork top；（Accompanying drawing
2, shown in dash area 10）, microtia is pitched so in blank becomes obtuse angle the angle between flange upper surface by right angle, tool
Body is that ear is pitched in upper model cavity, and bar portion is in drag chamber；
（2）Hot extrusion is forged：First pre-forging, the second pre-forging process are completed by common forging press vertical forging
Obtain the rough forging without the first reserved blind hole and the second reserved blind hole；
Then, the first reserved blind hole of hot extrusion forging and the second reserved blind hole（Kingpin bore）, using special forging equipment, because
Obtuse angle is designed as between overside face and flange face for microtia fork, finish-forging blank tilts mould in certain angle guarantee in mould
Blank can be stripped, and such design makes piloerection base just have normal pattern draft, it is possible to which level is along flange face along small
Ear fork circular bottom surface divides mould, and bar portion is in drag chamber, and big ear fork and microtia fork are in upper model cavity；Second blocking process blank exists
It is put under hot under hot-extrusion mold in mould 27, special forging equipment（Using the special forging equipment shown in Fig. 3）Sliding block is in master
Under the dynamic action of hydraulic cylinder vertically downward, 26 quick movement of mould on hot-extrusion mold is driven to be carried out with mould under hot-extrusion mold 27
Matched moulds, after matched moulds, the locked mode of the upper and lower mould of hot-extrusion mold is formed by the voussoir clamping mechanism of special forging equipment, after locked mode,
Left and right two electric screws mechanism quickly promotes big ear fork drift 28, microtia fork drift 29 the first reserved blind hole of extruding（Kingpin bore）
And the second reserved blind hole（Kingpin bore）While blank is full of die cavity, obtain qualified blank；Then, electric screw mechanism drives
Two drift returns；Then, the voussoir clamping mechanism return of special forging equipment；Then, sliding block drives mould 26 on hot-extrusion mold
After return；Blank under last bottom knockout hydraulic cylinder ejection hot-extrusion mold in mould 27, realizes integral automobile steering section blank
Hot extrusion extrudes the process of kingpin bore.
Claims (1)
1. the method that integral automobile steering section rough forging realizes hot extrusion forging, is comprised the following steps that：
（1）The structure of integral automobile steering section rough forging is improved：Integral automobile steering section rough forging, by bar portion, method
Blue, microtia fork, big ear fork form an entirety, the upper surface of flange and the central axis of bar portion, microtia pitch overside face with it is small
The obtuse angle that angle between ear fork top is 90-100 ° so that the center line along bar portion is that the draft angle in withdrawing pattern direction is positive number；
Die joint pitches extension from flange face midplane to two ears, corresponds on microtia fork, big ear fork at the kingpin bore of installation stub and sets
There are the first reserved blind hole from the extension of export-oriented center, the second reserved blind hole, bottom and the microtia fork medial surface of the first reserved blind hole
Between wall thickness range be 2-10 millimeters, the wall thickness range between the bottom of the second reserved blind hole and big ear fork medial surface is 1.5-
6 millimeters, the diameter of the first reserved blind hole and the second reserved blind hole is there is allowance 1.5-6 millimeters to determine；
（2）Hot extrusion is forged：First pre-forging is completed by common forging press vertical forging, the second pre-forging process obtains
Without the rough forging of the first reserved blind hole and the second reserved blind hole；
Then, the first reserved blind hole and the second reserved blind hole, using special forging equipment, the special forging are finally forged in hot extrusion
The structure of manufacturing apparatus：Including left column, right column, upper beam, underbeam, sliding block, main hydraulic cylinder, bottom knockout hydraulic cylinder, left column, the right side
Column, upper beam, underbeam form frame, and sliding block is oriented to by guiding pair on left column, right column, and main hydraulic cylinder is arranged on upper beam
On, main hydraulic cylinder driving sliding block；Bottom knockout hydraulic cylinder is arranged on below underbeam；
Left electric screw mechanism, right electric screw mechanism are separately installed with left column, right column；Left electric screw mechanism, the right side
The structure of electric screw mechanism is identical, and concrete structure is：Power is passed to flywheel by one-stage gear by two motors, by flying
Power is passed to screw pair by wheel again, then power is passed to sliding block by screw pair, so as to realize power output；
Left fixed voussoir, right fixed voussoir are respectively equipped with above sliding block；Voussoir clamping mechanism, voussoir lock are provided with below upper beam
Mold mechanism includes left voussoir clamping mechanism, right voussoir clamping mechanism, and left voussoir clamping mechanism is by left side small cylinder, left movable wedge
Block forms, and left side small cylinder drives left movable wedge；Right voussoir clamping mechanism is by right side small cylinder, right movable wedge group
Into right side small cylinder drives right movable wedge；The upper surface of left movable wedge, right movable wedge upper surface respectively with upper beam
Lower surface be slidably matched；
In use, sliding block moves down in place, voussoir clamping mechanism locking sliding block, tension force caused by forging and stamping is overcome；Left electric screw
Mechanism, right electric screw mechanism, laterally realize that crushing failure at high speed forges；
The process that hot extrusion is finally forged：Because the angle that microtia pitches between overside face and microtia fork top is obtuse angle, finish-forging hair
The blank that base tilts mould in certain angle guarantee in mould can be stripped, and it is normal that such design makes vertical forging blank just have
Pattern draft, it is possible to horizontal to divide mould along large and small ear fork circular bottom surface along flange face, bar portion is in drag chamber, big ear
Fork and microtia fork are in upper model cavity；Second pre-forging process blank is put under hot the lower mould of hot extrusion kingpin bore
In, being moved down by special forging equipment sliding block makes mould and lower mould matched moulds on extruding kingpin bore, is set after matched moulds by special forging
Standby voussoir clamping mechanism forms the locked mode of upper and lower mould, to ensure that the upper and lower mould of finish-forging is pre- in the reserved blind hole of extruding first and second
Stay locked mode during blind hole, after locked mode, left and right two electric screws mechanism quickly promotes the axially large and small ear fork extruding of two extrusion dies, obtains
Blank is set to be full of die cavity while to first reserved blind hole and the second reserved blind hole, then electric screw mechanism drives two extrusion dies
Axle return, the voussoir clamping mechanism return of special forging equipment, after sliding block drives upper mould return, the lower mould of bottom knockout hydraulic cylinder ejection
In blank, realize that integral automobile steering section blank hot extrusion extrudes the first reserved blind hole and the second reserved blind hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510488796.4A CN105081192B (en) | 2015-08-12 | 2015-08-12 | The method that integral automobile steering section rough forging realizes hot extrusion forging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510488796.4A CN105081192B (en) | 2015-08-12 | 2015-08-12 | The method that integral automobile steering section rough forging realizes hot extrusion forging |
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| CN105081192A CN105081192A (en) | 2015-11-25 |
| CN105081192B true CN105081192B (en) | 2018-03-30 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111299491A (en) * | 2020-04-01 | 2020-06-19 | 曹坤 | Inclined ejection mechanism arranged in die frame base plate for demolding of steering knuckle forging stock |
| CN116000233B (en) * | 2023-03-27 | 2023-06-20 | 江苏大洋精锻有限公司 | Forging stamping die for automobile transmission shaft |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11179476A (en) * | 1997-12-24 | 1999-07-06 | Toyota Motor Corp | Forging method for roughly formed material having bent body part |
| CN201244649Y (en) * | 2008-09-02 | 2009-05-27 | 罗建国 | Metal closed forging press using mechanical locking mould |
| CN101456056A (en) * | 2008-12-29 | 2009-06-17 | 十堰义兴工业发展有限公司 | Autocar spindle fork vertical type forging technique method |
| TW201038386A (en) * | 2009-04-30 | 2010-11-01 | Yih Feng Metal Ind Co Ltd | Method for integrally forging front fork of bicycle |
| CN101811170A (en) * | 2010-03-30 | 2010-08-25 | 曹立新 | Method for vertically forging integral automobile steering knuckle |
| CN102049461B (en) * | 2010-10-15 | 2012-11-14 | 中北大学 | Multidirectional numerical control hydraulic press for metal plasticity forming |
| CN102989939A (en) * | 2011-09-14 | 2013-03-27 | 曹立新 | Design method of integral automobile steering knuckle vertical forging blank |
| CN102672096B (en) * | 2012-05-30 | 2014-07-09 | 重庆理工大学 | Precision die forging and shaping technical method for automobile steering knuckle rough type parts |
| CN202752523U (en) * | 2012-09-25 | 2013-02-27 | 重庆理工大学 | Automobile steering knuckle multidirectional die forging precision forging forming die |
| CN103785785A (en) * | 2012-10-31 | 2014-05-14 | 曹立新 | Method for designing closed forging blank of integral automobile steering knuckle |
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Effective date of registration: 20201029 Address after: Building 3, no.6, Jinlong Road, Yunyang Economic Development Zone, Shiyan City, Hubei Province Patentee after: Hubei huanchuang Forging Co., Ltd Address before: 442500 Shiyan city of Hubei province Yunyang District Tan Jia Wan Zhen Tan Jia Wan Village three Group No. 208 Patentee before: Cao Lixin |
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Denomination of invention: Method for realizing hot extrusion forging of integral automobile steering knuckle forging blank Effective date of registration: 20220121 Granted publication date: 20180330 Pledgee: Bank of China Limited by Share Ltd. Shiyan branch Pledgor: Hubei huanchuang Forging Co.,Ltd. Registration number: Y2022980000946 |