CN105149484A - Integral forging process for knuckle with knuckle arm - Google Patents
Integral forging process for knuckle with knuckle arm Download PDFInfo
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- CN105149484A CN105149484A CN201510403282.4A CN201510403282A CN105149484A CN 105149484 A CN105149484 A CN 105149484A CN 201510403282 A CN201510403282 A CN 201510403282A CN 105149484 A CN105149484 A CN 105149484A
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Abstract
The invention relates to the technical field of knuckles, in particular to an integral forging process for a knuckle with a knuckle arm. According to the integral forging process, forging is completed through local upsetting, bending, extruding and finish forging. Firstly, round steel is divided into two parts through local upsetting, and the two parts are machined to form the knuckle and the knuckle arm through subsequent machining respectively; then, the two parts are bent relatively to achieve further separation; finally, the two parts are formed respectively through extruding and forging. As the material is roughly separated through local upsetting and bending according to the proportion of the knuckle arm to the knuckle, the part of the knuckle after bending can be forged and formed according to a vertical forging mode, and the part of the knuckle arm can be forged in the same direction at the same time, so that integral forging forming of the knuckle is achieved, the operation in the forging process is convenient, and the mechanical performance of the knuckle is guaranteed.
Description
Technical field
The present invention relates to knuckle technical field, particularly relate to a kind of Integral steering joint Forging Technology with knuckle arm.
Background technology
Automobile in the process of moving, often to change its travel direction (turning to), usually, when vehicle is when turning to, driver applies a steering moment to steering wheel, this moment is by steering spindle, power transmission shaft, steering gear, after steering gear is amplified, this moment imports pitman arm into, then passes to the knuckle arm on knuckle and knuckle by steering drag link, finally import wheel hub into, wheel is deflected.Knuckle arm is the afterbody force transferring part of steering transmission linkage.In existing Automobile Design process, spindle is generally that solid forging is shaping, after the working procedures such as heating, blocking, mold pressing, school shape, trimming, just base can be completed, and then machined forms, the ear of knuckle, dish portion (flange), bar portion are an overall structure, and are connected by bolt or ball pin with knuckle after knuckle arm processing again.
In order to reduce product weight, production cost and manufacture maintenance difficulty, knuckle arm and knuckle are formed an entirety by part knuckle, as application number be 93104332.8, patent name is Chinese invention patent for " one-piece steering knuckle assembly ", and the patent No. be 201120521116.1, patent name is the Chinese utility model patent of " a kind of light truck propons Integral steering saves ".For ensureing the mechanical performance of Integral steering joint, be shaped to good with solid forging, but its complex structure, and as a kind of Integral steering joint structure (rough forging) of accompanying drawing 1, the part due to knuckle arm is stretched out longer, utilizes prior art to be difficult to forging molding.
Summary of the invention
The object of the invention is to for the deficiencies in the prior art, and provide a kind of Integral steering joint Forging Technology with knuckle arm, knuckle arm and knuckle are divided into two parts by repeatedly sub-material by it, the forging molding while of then.
The technical solution adopted for the present invention to solve the technical problems is: a kind of Integral steering joint Forging Technology with knuckle arm, round steel is heated to forging temperature required after, put into jumping-up die cavity, the distortion of restriction lower end, by upper end gathering stock, blank level after jumping-up is put into bending die cavity, the relative other end in the one end making blank thinner is bent upwards 80 ° ~ 90 °, blank being overturn 90 ° makes angle of bend be positioned on horizontal plane, then put into extruding die cavity to carry out extruding and begin to take shape bar portion, dish portion, ear, and begin to take shape knuckle arm in the side of an ear, and then blank is put into finish-forging die cavity finish forging.
Described bending die cavity comprises the second die cavity corresponding to the first die cavity corresponding to one end thinner with blank, one end thicker with blank, first die cavity and horizontal plane have angle to the left and extend, second die cavity and horizontal plane have angle and extend to the top of the right side, and the first die cavity and the second die cavity junction are knuckle.
The volume of the first die cavity to be the volume of the 140% ~ 150%, second die cavity of the knuckle arm partial volume after forging molding be forging molding rear rod portion, dish portion, ear's volume sum 130% ~ 140%.
In BENDING PROCESS, flattened by blank, the one end making blank thicker forms storing boss to side extruding simultaneously.
In extruding die cavity, storing boss is placed downwards for curved lever portion.
In extruding die cavity, both sides, knuckle dish portion and the most advanced and sophisticated both sides of knuckle arm are provided with crush resistance platform.
In finish-forging die cavity, the most advanced and sophisticated both sides of knuckle arm are provided with finish-forging resistance platform.
The invention has the beneficial effects as follows: the present invention first passes through gathering stock, round steel is divided into two parts, these two parts will be processed as knuckle respectively by following process, knuckle arm, then these two part local inclination are realized further sub-material, and then by extruding, forging makes it shaping respectively, owing to passing through gathering stock, bend material roughly according to knuckle arm, the ratio of knuckle carries out sub-material, and can according to the mode forging molding of vertical forging for the part of knuckle after bending, also can forge from the part of same direction to knuckle arm simultaneously, therefore achieve shaping for its solid forging, and forging process is easy to operate, ensure that the mechanical performance of product.
Accompanying drawing explanation
Fig. 1 is the structural representation of the Integral steering joint of the band knuckle arm that the present invention processes.
Fig. 2 is the structural representation of the blank after gathering stock.
Fig. 3 is the structural representation of the counterdie of bending mould, extrusion die and finish-forging die.
Description of reference numerals:
1---dish portion 2---ear
3---bar portion 4---knuckle arm
5---bending die cavity 51---first die cavity
52---second die cavity 53---storing boss
6---extruding die cavity 61---crush resistance platform
7---finish-forging die cavity 71---finish-forging resistance platform.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation, is not practical range of the present invention is limited to this.
As shown in Figure 3, the present embodiment is the Integral steering joint of the band knuckle arm in machine-shaping Fig. 1, its round steel is heated to forging temperature required after, put into jumping-up die cavity, the distortion of restriction lower end, by upper end gathering stock, blank after jumping-up as shown in Figure 2, blank level after jumping-up is put into bending die cavity 5, the relative other end in the one end making blank thinner is bent upwards 80 ° ~ 90 °, blank being overturn 90 ° makes angle of bend be positioned on horizontal plane, then put into extruding die cavity 6 to carry out extruding and begin to take shape bar portion 3, dish portion 1, ear 2, and begin to take shape knuckle arm 4 in the side of an ear 2, and then blank is put into finish-forging die cavity 7 finish forging.The present invention is owing to roughly carrying out sub-material according to the ratio of knuckle arm 4, knuckle by gathering stock, bending two steps by material, and can according to the mode forging molding of vertical forging for the part of knuckle after bending, also can forge from the part of same direction to knuckle arm 4 simultaneously, therefore achieve shaping for its solid forging, and forging process is easy to operate, ensure that the mechanical performance of product.
Further, described bending die cavity 5 comprises the second die cavity 52 corresponding to the first die cavity 51 corresponding to one end thinner with blank, one end thicker with blank, first die cavity 51 has angle to the left with horizontal plane and extends, second die cavity 52 has angle with horizontal plane and extends to the top of the right side, first die cavity 51 and the second die cavity 52 junction are knuckle, time bending, the relative other end in one end that blank is thinner is bent upwards.
Further, the volume of the first die cavity 51 to be the volume of the 140% ~ 150%, second die cavity 52 of knuckle arm 4 partial volume after forging molding be forging molding rear rod portion 3, dish portion 1, ear 2 volume sum 130% ~ 140%.
Further, in BENDING PROCESS, flattened by blank, the one end making blank thicker forms storing boss 53 to side extruding simultaneously, is convenient on the one hand put into extruding die cavity 6, adds the thickness at this position during extruding on the other hand after one end that blank is thinner is crushed,
Further, in extruding die cavity 6, storing boss 53 is placed downwards and is used for curved lever portion 3, and during curved lever portion 3, metal flows downward, and the metal at storing boss 53 place can compensate it, makes it be easy to shaping; Make knuckle arm 4 form drop with the dish portion 1 of knuckle simultaneously, this drop strengthens further in extrusion process, preformed drop can reduce the degree of the distortion distortion in extrusion process, makes the root of knuckle arm 4 not easily produce flaw, has good mechanical performance.
Further, extruding die cavity 6 in, knuckle dish both sides, portion 1 and the most advanced and sophisticated both sides of knuckle arm 4 are provided with crush resistance platform 61, decrease bar portion 3 and knuckle arm 4 shaping time metal flowing, make it be easy to shaping, improve stock utilization.
Further, in finish-forging die cavity 7, the most advanced and sophisticated both sides of knuckle arm 4 are provided with finish-forging resistance platform 71, decrease knuckle arm 4 shaping time metal flowing, make it be easy to shaping, improve stock utilization.
Finally should be noted that; above embodiment is only in order to illustrate technical scheme of the present invention; but not limiting the scope of the invention; although done to explain to the present invention with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify to technical scheme of the present invention or equivalent replacement, and not depart from essence and the scope of technical solution of the present invention.
Claims (7)
1. be with the Integral steering joint Forging Technology of knuckle arm, it is characterized in that: after round steel is heated, put into jumping-up die cavity, the distortion of restriction lower end, by upper end gathering stock, blank level after jumping-up is put into bending die cavity, the relative other end in the one end making blank thinner is bent upwards 80 ° ~ 90 °, blank being overturn 90 ° makes angle of bend be positioned on horizontal plane, then put into extruding die cavity to carry out extruding and begin to take shape bar portion, dish portion, ear, and begin to take shape knuckle arm in the side of an ear, and then blank is put into finish-forging die cavity finish forging.
2. the Integral steering joint Forging Technology of band knuckle arm according to claim 1, it is characterized in that: described bending die cavity comprises the second die cavity corresponding to the first die cavity corresponding to one end thinner with blank, one end thicker with blank, first die cavity and horizontal plane have angle to the left and extend, second die cavity and horizontal plane have angle and extend to the top of the right side, and the first die cavity and the second die cavity junction are knuckle.
3. the Integral steering joint Forging Technology of band knuckle arm according to claim 2, it is characterized in that: the volume of the first die cavity to be the volume of the 140% ~ 150%, second die cavity of the knuckle arm partial volume after forging molding be forging molding rear rod portion, dish portion, ear's volume sum 130% ~ 140%.
4. the Integral steering joint Forging Technology of band knuckle arm according to claim 2, it is characterized in that: in BENDING PROCESS, flattened by blank simultaneously, the one end making blank thicker forms storing boss to side extruding.
5. the Integral steering joint Forging Technology of band knuckle arm according to claim 4, is characterized in that: in extruding die cavity, storing boss is placed downwards for curved lever portion.
6. the Integral steering joint Forging Technology of band knuckle arm according to claim 4, is characterized in that: in extruding die cavity, and both sides, knuckle dish portion and the most advanced and sophisticated both sides of knuckle arm are provided with crush resistance platform.
7. the Integral steering joint Forging Technology of band knuckle arm according to claim 4, is characterized in that: in finish-forging die cavity, and the most advanced and sophisticated both sides of knuckle arm are provided with finish-forging resistance platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510403282.4A CN105149484B (en) | 2015-07-11 | 2015-07-11 | Integral steering section forging technology with knuckle arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510403282.4A CN105149484B (en) | 2015-07-11 | 2015-07-11 | Integral steering section forging technology with knuckle arm |
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| CN105149484A true CN105149484A (en) | 2015-12-16 |
| CN105149484B CN105149484B (en) | 2017-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510403282.4A Active CN105149484B (en) | 2015-07-11 | 2015-07-11 | Integral steering section forging technology with knuckle arm |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107792173A (en) * | 2017-09-27 | 2018-03-13 | 湖北三环锻造有限公司 | With the spindle of tie rod arm integral forming |
| CN107813872A (en) * | 2017-09-27 | 2018-03-20 | 湖北三环锻造有限公司 | With the automotive disc knuckle and its processing technology of steering arm integral forming |
| CN110252917A (en) * | 2019-06-18 | 2019-09-20 | 湖北三环锻造有限公司 | Obtain the knuckle arm forging technology of good metal streamline |
| CN110877091A (en) * | 2019-12-04 | 2020-03-13 | 湖北三环锻造有限公司 | Hot forging forming process method of steering knuckle arm |
| CN112974710A (en) * | 2021-03-18 | 2021-06-18 | 中国第一汽车股份有限公司 | Forging die for steering knuckle and forming process thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101607294A (en) * | 2009-07-08 | 2009-12-23 | 湖北三环锻造有限公司 | Medium and heavy automobile knuckle stamp forging extruding compound technology |
| US20100038873A1 (en) * | 2008-08-14 | 2010-02-18 | Stoyan Stoychey | Steering knuckle with spindle and method of making same |
| CN101670417A (en) * | 2009-09-29 | 2010-03-17 | 重庆凯恩机械制造有限公司 | Steering knuckle forging molding process of heavy truck |
| CN102672096A (en) * | 2012-05-30 | 2012-09-19 | 重庆理工大学 | Precision die forging and shaping technical method for automobile steering knuckle rough type parts |
| CN103706746A (en) * | 2014-01-10 | 2014-04-09 | 重庆应国机械制造有限责任公司 | Semi-closed type extrusion forging process with supporting shaft knuckle |
-
2015
- 2015-07-11 CN CN201510403282.4A patent/CN105149484B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100038873A1 (en) * | 2008-08-14 | 2010-02-18 | Stoyan Stoychey | Steering knuckle with spindle and method of making same |
| CN101607294A (en) * | 2009-07-08 | 2009-12-23 | 湖北三环锻造有限公司 | Medium and heavy automobile knuckle stamp forging extruding compound technology |
| CN101670417A (en) * | 2009-09-29 | 2010-03-17 | 重庆凯恩机械制造有限公司 | Steering knuckle forging molding process of heavy truck |
| CN102672096A (en) * | 2012-05-30 | 2012-09-19 | 重庆理工大学 | Precision die forging and shaping technical method for automobile steering knuckle rough type parts |
| CN103706746A (en) * | 2014-01-10 | 2014-04-09 | 重庆应国机械制造有限责任公司 | Semi-closed type extrusion forging process with supporting shaft knuckle |
Non-Patent Citations (1)
| Title |
|---|
| 付翔: ""汽车转向节的锻造工艺"", 《锻压装备与制造技术》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107792173A (en) * | 2017-09-27 | 2018-03-13 | 湖北三环锻造有限公司 | With the spindle of tie rod arm integral forming |
| CN107813872A (en) * | 2017-09-27 | 2018-03-20 | 湖北三环锻造有限公司 | With the automotive disc knuckle and its processing technology of steering arm integral forming |
| CN110252917A (en) * | 2019-06-18 | 2019-09-20 | 湖北三环锻造有限公司 | Obtain the knuckle arm forging technology of good metal streamline |
| CN110877091A (en) * | 2019-12-04 | 2020-03-13 | 湖北三环锻造有限公司 | Hot forging forming process method of steering knuckle arm |
| CN112974710A (en) * | 2021-03-18 | 2021-06-18 | 中国第一汽车股份有限公司 | Forging die for steering knuckle and forming process thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105149484B (en) | 2017-06-13 |
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