CN107081399A - A kind of multiple degrees of freedom active shunt manufacturing process - Google Patents
A kind of multiple degrees of freedom active shunt manufacturing process Download PDFInfo
- Publication number
- CN107081399A CN107081399A CN201710407715.2A CN201710407715A CN107081399A CN 107081399 A CN107081399 A CN 107081399A CN 201710407715 A CN201710407715 A CN 201710407715A CN 107081399 A CN107081399 A CN 107081399A
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- China
- Prior art keywords
- forging
- shaping
- die module
- free degree
- manufacturing process
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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
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/008—Incremental forging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/28—Making machine elements wheels; discs
- B21K1/30—Making machine elements wheels; discs with gear-teeth
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The present invention is a kind of multiple degrees of freedom active shunt manufacturing process.This method is a kind of brand-new shunting decompression manufacturing process proposed for complex-shaped forging, and the principle of method is:There is actively controllable plastic force in multiple necessary free degree directions of part, can be shaped according to actively loading or retrogressing the need for shaping with the low stress for realizing complex forging, its realization means is:The die module existed in each free degree direction utilizes each independent power source（Such as hydraulic cylinder）Independent control can be realized, each die module needs to carry out active extruding or retract that different shunting spaces can be formed according to shaping, or self contained function or combinative movement as needed, and then reduce plastic force, forging forming is completed under the allowable stress of mould, this method can be widely applied to the multidirectional of complex parts（Multiaxis）Shaping, is that the low stress shaping of complex parts proposes a kind of brand-new high efficiency method.
Description
Technical field
The invention belongs to Metal Forming field, more particularly to a kind of multiple degrees of freedom active shunt manufacturing process can be
Different free degree directions actively form shunting space, the forging complicated to shaping form.
Background technology
Shunting decompression technology is earliest by propositions such as Japanese scholars K.Kondo, to the especially middle little gear essence of gear precision forging
The development of forging is made that outstanding contribution.Belonging to passive shunting existing shunting decompression forming technique, i.e., in forge piece blank reheating more
Advance reservation shunts space（Hole is shunted）Or pass through the reserved shunting space of mould structure（Axle is shunted）Fig. 1,2, this kind of method can only
The relatively simple forging of shaped structure, because being passive shunting, therefore is difficult to actively fill needs according to shaping in forming process
And active control shunting space and then adjustment forming cavity each several part pressure.Usually needed according to metal in mould in actual production
Mobility status to adjust shunting space in good time and then adjusts mold cavity each several part pressure, especially for complex-shaped forging
It is even more so, shunting space is formed simply by reserving shunting space on forging or being adjusted by mould structure, forging can be increased
Part prefabricated blank time or mould structure are complicated, are difficult in actual applications.
The content of the invention
The purpose of the present invention exactly proposes a kind of multiple degrees of freedom for the weak point in the presence of above-mentioned prior art
Active shunt manufacturing process, in the case where ensureing the filling of forging each several part, while also ensureing the shunting multivariant master in space
It is dynamic to exist, to reduce plastic force.
The purpose of the present invention can be realized by following technique measures：
The multiple degrees of freedom active shunt manufacturing process of the present invention comprises the steps：
（1）According to forging shape and its forming technology of formulation, the direction needed centered on forging in shaping sets several
Different free degree directions die module, each die module realizes each mould mould by each independent power source drive
The independent control that the extruding of block is retracted.
（2）Step is utilized during forging forming（1）Each free degree direction die module extruding forge piece blank reheating,
Needed according to shaping when forging part needs reduction forming pressure, the die module of the part is then moved back under controlled condition
Return, actively form shunting space, forging different parts according to the extruding of each each die module in free degree direction, retract and actively formed
Space, or self contained function or combinative movement as needed are shunted, plastic force is so both reduced, is hindered according to the minimum of metal flow
Power principle, and the position of resistance minimum can be caused preferentially to be full of.
Beneficial effects of the present invention are as follows：
The die module that the present invention exists in each free degree direction utilizes each independent power source（Such as hydraulic cylinder）Can be real
Existing independent control, each die module needs to carry out active extruding or retract that different shunting spaces can be formed according to shaping, enters
And plastic force is reduced, forging forming is completed under the allowable stress of mould, this method can be widely applied to the multidirectional of complex parts
（Multiaxis）Shaping, is that the low stress shaping of complex parts proposes a kind of brand-new high efficiency method.
Brief description of the drawings
Fig. 1 is hole shunting schematic diagram.
Fig. 2 is axle shunting schematic diagram.
Sequence number in figure：1 ˊ --- the ˊ of drift 2 --- ˊ of cavity plate 3 --- workpiece.
Fig. 3 is that forging sets shaping die module schematic diagram in different free degree directions.
A is into shape Forging in figure, and f1, f2, f3, f4, f5, f6 are the different free degree sides for being provided with shaping dies module
To.
Fig. 4 is certain car model gearbox gear.
Fig. 5 is active shunt Forming Theory schematic diagram.
Fig. 6 is active shunt shaping dies realization figure.
Sequence number in Fig. 6：1 is upper outer ram, and 2 be upper middle drift, and 3 be upper inner punch, and 4 be formed gear, and 5 be cavity plate, and 6 are
It is lower outer punch, 7 be lower middle drift, and 8 be lower inner punch.
Fig. 7 motor turning pistons active shunt shapes schematic diagram.
Embodiment
The present invention is below with reference to embodiment（Accompanying drawing）It is further described：
The multiple degrees of freedom active shunt manufacturing process of the present invention comprises the steps：
（1）According to forging shape and its forming technology of formulation, the direction needed as shown in Figure 3 centered on forging a in shaping
Shaping dies is set, each direction f1, f2, f3, f4, f5, f6 ... can be labeled as
（2）In step（1）Middle mark different directions f1, f2, f3, f4, f5, f6 ... is needed in difference certainly according to forging a shapings
By spend direction several die modules are set, can by the die module in each free degree direction labeled as f1 ', f1 " ... each
Die module all can retract achievable independent control by the power source drive that opposes, the extruding of each die module.
（3）Step is utilized during forging forming（2）The die module extruding forging in each free degree direction of middle mark
Part blank, according to shaping need forging a parts need reduce forming pressure then the part die module then backward actively can
Control is retracted and actively forms shunting space, forging different parts can according to the extruding of each each die module in free degree direction, retract master
It is dynamic to form shunting space.
The die module that the present invention exists in each free degree direction utilizes each independent power source（Such as hydraulic cylinder）Can
With realization opposition control, each die module needs to carry out active extruding or retract that different shuntings skies can be formed according to shaping
Between, and then plastic force is reduced, forging forming is completed under the allowable stress of mould, this method can be widely applied to complex parts
It is multidirectional（Multiaxis）Shaping, is that the low stress shaping of complex parts proposes a kind of brand-new high efficiency method.
The specific embodiment of the present invention is as follows：
Embodiment 1
Gear shown in Fig. 4 is automobile gearbox typical gear, is the characteristics of the gear：Ratio of height to diameter（H/D)<0.5；It is asymmetric；Tooth
Wheel is made up of outer toothed portion, middle spoke, the part of internal boss three；Major diameter；Large modulus, direct geared shaping difficulty is big, needs
Want brand-new forming technology.The characteristics of for the gear, using active shunt decompression technology, propose a kind of brand-new technique, Fig. 5
It is shown：It is six different power on F1~F6, external tooth form up and down, middle spoke and the internal boss of formed gear is corresponded to respectively
In part, forming process as needed extruded alone or in combination or actively retract, ensure gear each several part fill
In the case of, while also ensureing that the multivariant active in shunting space is present, to reduce plastic force so that the low stress of such part
It is configured to possibility.Fig. 6 is the mould implementation schematic diagram of method, using each three layers of drift up and down, and each drift is used to shape
The different piece of gear, each drift has single power source（Hydraulic cylinder）Driving, realizes that multiple degrees of freedom is controllable, or independence or connection
Shunting space is existed and controllable all the time in dynamic complex controll shaping, forming process, realize the single-station one step forming of gear.
Embodiment 2
As shown in Figure 7：Motor turning piston is used as the core part of commercial vehicle steering gear, complex-shaped, direct forming difficulty
It is very big, using active shunt technology, in different free degree directions（Up, down, left, right, before and after six direction）Plastic force is set,
Mould structure uses assembled inlay blocks form, and 6 directions have makes shunting space all the time in independent Driven by Hydraulic Cylinder, forming process
In the presence of and it is controllable, reach can realize filling and plastic force can be reduced, realize the single-station one step forming of the part, this method is
Realize and produce application in enormous quantities.
Claims (1)
1. a kind of multiple degrees of freedom active shunt manufacturing process, it is characterised in that：Methods described comprises the steps：
（1）According to forging shape and its forming technology of formulation, the direction needed centered on forging in shaping sets several
Different free degree directions die module, each die module realizes each mould mould by each independent power source drive
The independent control that the extruding of block is retracted；
（2）Step is utilized during forging forming（1）Each free degree direction die module extruding forge piece blank reheating, according to
Shaping is needed when forging part needs reduction forming pressure, and the die module of the part is then retracted under controlled condition, main
It is dynamic to form shunting space, forging different parts according to the extruding of each each die module in free degree direction, retract actively to be formed and shunt
Space, or self contained function or combinative movement as needed, so both reduce plastic force, former according to the minimum drag of metal flow
Reason, and the position of resistance minimum can be caused preferentially to be full of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710407715.2A CN107081399A (en) | 2017-06-02 | 2017-06-02 | A kind of multiple degrees of freedom active shunt manufacturing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710407715.2A CN107081399A (en) | 2017-06-02 | 2017-06-02 | A kind of multiple degrees of freedom active shunt manufacturing process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107081399A true CN107081399A (en) | 2017-08-22 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710407715.2A Pending CN107081399A (en) | 2017-06-02 | 2017-06-02 | A kind of multiple degrees of freedom active shunt manufacturing process |
Country Status (1)
| Country | Link |
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| CN (1) | CN107081399A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110252924A (en) * | 2019-07-25 | 2019-09-20 | 西安建筑科技大学 | A kind of fork forgings mold controllable flow flash gutters and branch fork forgings mold |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3718884A1 (en) * | 1987-06-05 | 1988-12-29 | K Lange Forschungsgesellschaft | Method and tools for the cold, warm and hot transversal extrusion of workpieces with accurate teeth from metal, preferably steel |
| US5746085A (en) * | 1995-06-30 | 1998-05-05 | Hitachi, Ltd. | Gear forming method |
| CN1593807A (en) * | 2003-09-11 | 2005-03-16 | 郑州机械研究所 | Cold precise forming technology and equipment of spur gear |
| CN101585100A (en) * | 2009-07-01 | 2009-11-25 | 郑州机械研究所 | Cold precision forming technique of helical-spur gear and device thereof |
| CN102615236A (en) * | 2012-04-05 | 2012-08-01 | 郑州机械研究所 | Cold precision forming device for asymmetric cylindrical gear |
| CN103192016A (en) * | 2013-04-24 | 2013-07-10 | 郑州机械研究所 | Cold precision forming device for asymmetric large-diameter spur gears |
| CN105057528A (en) * | 2015-08-19 | 2015-11-18 | 郑州机械研究所 | Single-station multidirectional extrusion precision forming process of automobile steering piston |
| CN205436962U (en) * | 2016-04-01 | 2016-08-10 | 郑州机械研究所 | Diversely forge press structure |
-
2017
- 2017-06-02 CN CN201710407715.2A patent/CN107081399A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3718884A1 (en) * | 1987-06-05 | 1988-12-29 | K Lange Forschungsgesellschaft | Method and tools for the cold, warm and hot transversal extrusion of workpieces with accurate teeth from metal, preferably steel |
| US5746085A (en) * | 1995-06-30 | 1998-05-05 | Hitachi, Ltd. | Gear forming method |
| CN1593807A (en) * | 2003-09-11 | 2005-03-16 | 郑州机械研究所 | Cold precise forming technology and equipment of spur gear |
| CN101585100A (en) * | 2009-07-01 | 2009-11-25 | 郑州机械研究所 | Cold precision forming technique of helical-spur gear and device thereof |
| CN102615236A (en) * | 2012-04-05 | 2012-08-01 | 郑州机械研究所 | Cold precision forming device for asymmetric cylindrical gear |
| CN103192016A (en) * | 2013-04-24 | 2013-07-10 | 郑州机械研究所 | Cold precision forming device for asymmetric large-diameter spur gears |
| CN105057528A (en) * | 2015-08-19 | 2015-11-18 | 郑州机械研究所 | Single-station multidirectional extrusion precision forming process of automobile steering piston |
| CN205436962U (en) * | 2016-04-01 | 2016-08-10 | 郑州机械研究所 | Diversely forge press structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110252924A (en) * | 2019-07-25 | 2019-09-20 | 西安建筑科技大学 | A kind of fork forgings mold controllable flow flash gutters and branch fork forgings mold |
| CN110252924B (en) * | 2019-07-25 | 2020-08-25 | 西安建筑科技大学 | Branch fork type forging mould controllable flowing burr groove and branch fork type forging mould |
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| PB01 | Publication | ||
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| 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 |
Application publication date: 20170822 |
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| RJ01 | Rejection of invention patent application after publication |