CN107774858A - A kind of automobile steering joint closed die forging technique - Google Patents
A kind of automobile steering joint closed die forging technique Download PDFInfo
- Publication number
- CN107774858A CN107774858A CN201610817998.3A CN201610817998A CN107774858A CN 107774858 A CN107774858 A CN 107774858A CN 201610817998 A CN201610817998 A CN 201610817998A CN 107774858 A CN107774858 A CN 107774858A
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- mould bases
- blank
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- die
- cavity
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/02—Dies or mountings therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
- B21J5/025—Closed die forging
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
A kind of automobile steering joint closed die forging technological process is：Raw material are cut into blank, blank is put into heating stove heat, after temperature reaches predetermined temperature, blank is put into the die cavity of enclosed mould bases, the enclosed mould bases cope plate, lower bottom base is separately fixed at four column press upper slides, on lower bottom base, four column press upper slides are descending, the cavity closed of enclosed mould bases, mould bases oil cylinder drives mould bases mould cylinder further to strengthen closing, by being pushed up on four column press core rod push rods, blank produces pressure from bottom to top, core rod lower push rod bar portion passes freely through mold center to side extrusion forming, once forging and stamping form steering knuckle workpiece；When taking out shaping workpiece, it can be pushed up by controlling on push rod, workpiece ejected into mould bases；Upper lower cavity die can according to different model, multi-form, workpiece of different shapes and change.It is various to solve traditional handicraft process, produces overlap, the shortcomings that stock utilization is low, also overcomes accurate cold forging to forge and press twice, the defects of complex procedures.
Description
Technical field
The present invention relates to a kind of auto parts and components process for machining and manufacturing, more specifically to a kind of automobile steering joint
Closed die forging technique.
Background technology
Automobile steering joint is the strength member of automobile steering system, is connected to the steering of automobile, brakes, OK
System is sailed, requires higher for product stress and mechanical properties strength.The conventional forging process used at present includes fracture, added
Heat, base, be molded, fall the five processes such as side complete, it is necessary to capital equipment have：Blank cutter, intermediate frequency furnace, pneumatic hammer, friction pressure
Power machine, punch press.This technique manufacturing procedure is various, and the workpiece deformation extent of completion is big, there is overlap, the probability for inside having interlayer and pleat skin
Greatly, easily cracking, product percent defective are higher during Post isothermal treatment；It is more to produce the caused waste material of product, is probably
The 20%-25% of workpiece, stock utilization is low, accordingly adds workpiece cost.
Other automobile precision Cold forging, such as application number 201120289782.7, authorized announcement date 2012 year 04 month 25 days,
Denomination of invention：Automobile steering joint.This application case discloses a kind of automobile steering joint, and the steering knuckle one end is hollow cylinder
Body, the other end are solid cylinder, and both ends joining place is provided with cubic body and step, and the cavity in hollow cylinder body is designed as
Front and rear two parts, fore-end are in conical bore, and rear end part is in circular hole.The program is manufactured using accurate cold forging, and manufacturing process is such as
Under：First pass through piece pre-forming die and once anti-extrusion forming is carried out to blank, by one end hollow cylinder of blank and its interior cavity
Part extrusion molding together, is then just extruded into shape, by steering knuckle four directions body and platform for the second time by secondary forming die
Rank and other end solid cylinder extrusion molding.The program will use two molds, forge and press twice, and process is relative complex, and
Repeatedly forging and stamping easily form the processing technology defects such as pleat skin.
The content of the invention
1. invention technical problems to be solved
The invention provides a kind of automobile steering joint closed die forging technique.It overcomes the various finished product of traditional handicraft process
Workpiece deformation extent is big, inside has the probability of interlayer and pleat skin big, during Post isothermal treatment easily cracking, product percent defective compared with
It is high；Production base type has overlap, and caused waste material is more, is probably the 20%-25% of workpiece, and stock utilization is low, and cost is relative
The shortcomings that higher.Production efficiency and yield rate are improved, saves material.Also the mold of accurate cold forging technology two, twice can be overcome
Forging and stamping, process is relative complex, and repeatedly forging and stamping easily form the processing technology defects such as pleat skin.
2. technical scheme
To reach above-mentioned purpose, technical scheme provided by the invention is：The automobile steering joint closed die forging technological process
For：Raw material are cut into blank, blank is put into heating stove heat, and after temperature reaches predetermined temperature, blank is put into enclosed
In the die cavity of mould bases, the enclosed mould bases cope plate, lower bottom base are separately fixed at four column press upper slides, on lower bottom base, four posts
Forcing press upper slide is descending, the cavity closed of enclosed mould bases, and mould bases oil cylinder drives mould bases mould cylinder further to strengthen closing, and passes through four
Pushed up on column press core rod push rod, blank produces pressure from bottom to top, and core rod lower push rod bar portion passes freely through mold center to side
Face extrusion forming, once forging and stamping form steering knuckle workpiece；When taking out shaping workpiece, it can be pushed up by controlling on push rod, by workpiece
Eject mould bases；Upper lower cavity die can according to different model, multi-form, workpiece of different shapes and change.
3. beneficial effect
Using technical scheme provided by the invention, compared with existing known technology, have the advantages that：It is more traditional
Forging technology, the present invention reduce production process, a whole set of forming process about 12 using enclosed mould bases, a forging forming technology
Second/part, fast 3 times of technique is saved than tradition, operator saves half；It forging non-trimming, can reduce side process, reduce waste material,
Material saving 20%-25%, improve stock utilization；For the workpiece done without interlayer and aptychus skin, mechanical properties strength is high, deforms journey
Spend low, improve product quality.Compared with disclosed automobile precision Cold forging, one-shot forming, mould is reduced, reduce process.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below to embodiment or existing
The required accompanying drawing used is simply introduced in technology description.It should be evident that drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the process chart of the invention；
Fig. 2 is the mould schematic diagram of the invention；
Label declaration in schematic diagram：
1st, 1# cope plates；2nd, 2# cope plates；3rd, die shoe；4th, drift backing plate；5th, upper punch；6th, guide pillar；7th, low punch；8th, push up
Bar；9th, lower push rod；10th, oil cylinder；11st, upper cavity die；12nd, lower cavity die；13rd, mould cylinder；14th, piston；15th, piston pressing plate；16th, mould room.
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 carried out clear, complete
Whole property description.Obviously, described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
To further appreciate that present disclosure, with reference to accompanying drawing, the present invention is described in detail.
Be as shown in Figure 2 the present invention open wide schematic diagram without workpiece, 1# cope plates (1) are fixed on four column press upper slides
On, it is fixed on the upside of drift backing plate (4) on 2# cope plates (2), downside is fixed with upper cavity die (11), and upper punch (5) is connected to
On cavity plate (11).Die shoe (3) is fixed in four column press lower plates, and guide pillar (6), oil cylinder (10) are provided with die shoe (3)
And ejector rod system etc..Lower push rod (9) is connected with push rod (8), low punch (7) successively from bottom to top through die shoe (3), push rod
(8) by lower cavity die (12) and in close contact therewith.Guide pillar (6) lower end is covered through guide pin bushing, guide pin bushing and mould through die shoe upper end
Cylinder (13) connection.Oil cylinder (10) is connected by piston (14) with mould cylinder, the height of above-mentioned oil cylinder is adjustable mould preparation cylinder (13).It is recessed
Mould (12) is embedded in mould cylinder (13).
With reference to embodiment, the invention will be further described.
In automobile steering joint process described in this example：Raw material are cut into blank with blank cutter, blank is put into
Stove heat is heated, after temperature reaches predetermined temperature, blank is put into the die cavity of mould bases, is started under four column press upper slides
OK, the upper cavity die of mould bases closes to form die cavity with lower cavity die, and by being pushed up on four column press core rod lower push rods, blank is from bottom to top
Pressure is produced, core rod lower push rod bar portion passes freely through mold center and forms steering knuckle work to side extrusion forming, once forging and stamping
Part.
After the completion of workpiece forging and stamping, four column press upper slides of startup are up, and the cope plate of mould bases and upper cavity die part are carried
Rise, be again started up pushing up on lower push rod, workpiece is ejected into workpiece die cavity.
The workpiece of shaping is removed into mould bases using manually or mechanically handgrip, carries out subsequent quality detection and refine processing.
To adapt to the processing of different workpieces, upper and lower cavity plate can be according to different model, multi-form, work of different shapes
Part and change form frame system, other positions, which are not done, to be changed.
Schematically the present invention and embodiments thereof are described above, this describes no restricted, institute in accompanying drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited thereto.So if common skill of this area
Art personnel are enlightened by it, without departing from the spirit of the invention, without designing and the technical scheme for creativeness
Similar frame mode and embodiment, protection scope of the present invention all should be belonged to.
Claims (1)
1. a kind of automobile steering joint closed die forging technological process is：Raw material are cut into blank, blank is put into heating furnace and added
Heat, after temperature reaches predetermined temperature, blank is put into the die cavity of enclosed mould bases, the enclosed mould bases cope plate, lower bottom base point
Four column press upper slides are not fixed on, on lower bottom base, four column press upper slides are descending, the cavity closed of enclosed mould bases, mould
Frame oil cylinder drives mould bases mould cylinder further to strengthen closing, and by being pushed up on four column press core rod push rods, blank produces from bottom to top
Pressure, top phase bar portion passes freely through mold center and forms steering knuckle workpiece to side extrusion forming, once forging and stamping under core rod；Take
When going out shaping workpiece, it can be pushed up by controlling on push rod, workpiece ejected into mould bases；Upper lower cavity die can be according to different model, not similar shape
Formula, workpiece of different shapes and change.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610817998.3A CN107774858A (en) | 2016-08-30 | 2016-08-30 | A kind of automobile steering joint closed die forging technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610817998.3A CN107774858A (en) | 2016-08-30 | 2016-08-30 | A kind of automobile steering joint closed die forging technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107774858A true CN107774858A (en) | 2018-03-09 |
Family
ID=61437656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610817998.3A Pending CN107774858A (en) | 2016-08-30 | 2016-08-30 | A kind of automobile steering joint closed die forging technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107774858A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5116159A (en) * | 1990-08-23 | 1992-05-26 | Dana Corporation | Ball and socket joint assembly |
| JPH0760392A (en) * | 1993-08-24 | 1995-03-07 | Toyota Motor Corp | Method for forging parts having arm part |
| CN201394927Y (en) * | 2009-05-26 | 2010-02-03 | 刘天海 | Special-shaped element closed pressure forming die |
| CN201800768U (en) * | 2010-08-30 | 2011-04-20 | 浙江跃进锻造有限公司 | Vehicle steering ball joint |
| CN102151711A (en) * | 2010-12-15 | 2011-08-17 | 江苏太平洋精锻科技股份有限公司 | Upper die anti-cracking structure of closed type cold extrusion planetary gear die |
| CN201978962U (en) * | 2010-12-31 | 2011-09-21 | 重庆电子工程职业学院 | Closed steering knuckle extruding mould for double-action press |
| CN102489659A (en) * | 2011-11-16 | 2012-06-13 | 日照市七星汽车部件有限公司 | Method for forging steering knuckle |
| CN202411308U (en) * | 2011-12-31 | 2012-09-05 | 江苏森威精锻有限公司 | Separated obliterated forging device |
| CN202752523U (en) * | 2012-09-25 | 2013-02-27 | 重庆理工大学 | Automobile steering knuckle multidirectional die forging precision forging forming die |
| CN102989989A (en) * | 2012-08-17 | 2013-03-27 | 大连大高阀门股份有限公司 | Forging process of heavy truck steering knuckle |
| CN203437574U (en) * | 2013-07-26 | 2014-02-19 | 柳州市诚信机械有限公司 | Thermal enclosed forging die for piston rod of engineering machinery |
-
2016
- 2016-08-30 CN CN201610817998.3A patent/CN107774858A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5116159A (en) * | 1990-08-23 | 1992-05-26 | Dana Corporation | Ball and socket joint assembly |
| JPH0760392A (en) * | 1993-08-24 | 1995-03-07 | Toyota Motor Corp | Method for forging parts having arm part |
| CN201394927Y (en) * | 2009-05-26 | 2010-02-03 | 刘天海 | Special-shaped element closed pressure forming die |
| CN201800768U (en) * | 2010-08-30 | 2011-04-20 | 浙江跃进锻造有限公司 | Vehicle steering ball joint |
| CN102151711A (en) * | 2010-12-15 | 2011-08-17 | 江苏太平洋精锻科技股份有限公司 | Upper die anti-cracking structure of closed type cold extrusion planetary gear die |
| CN201978962U (en) * | 2010-12-31 | 2011-09-21 | 重庆电子工程职业学院 | Closed steering knuckle extruding mould for double-action press |
| CN102489659A (en) * | 2011-11-16 | 2012-06-13 | 日照市七星汽车部件有限公司 | Method for forging steering knuckle |
| CN202411308U (en) * | 2011-12-31 | 2012-09-05 | 江苏森威精锻有限公司 | Separated obliterated forging device |
| CN102989989A (en) * | 2012-08-17 | 2013-03-27 | 大连大高阀门股份有限公司 | Forging process of heavy truck steering knuckle |
| CN202752523U (en) * | 2012-09-25 | 2013-02-27 | 重庆理工大学 | Automobile steering knuckle multidirectional die forging precision forging forming die |
| CN203437574U (en) * | 2013-07-26 | 2014-02-19 | 柳州市诚信机械有限公司 | Thermal enclosed forging die for piston rod of engineering machinery |
Non-Patent Citations (1)
| Title |
|---|
| 中国锻压协会: "《模锻工艺及其设备使用特性》", 31 January 2011, 国防工业出版社 * |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180309 |