CN207447247U - Double floating type lock ring cold closed-die forging one step forming mould - Google Patents
Double floating type lock ring cold closed-die forging one step forming mould Download PDFInfo
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- CN207447247U CN207447247U CN201721282455.2U CN201721282455U CN207447247U CN 207447247 U CN207447247 U CN 207447247U CN 201721282455 U CN201721282455 U CN 201721282455U CN 207447247 U CN207447247 U CN 207447247U
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Abstract
The utility model discloses a kind of double floating type lock ring cold closed-die forging one step forming moulds, it includes upper mold core, Upper Die-sleeve, core, core inner sleeve, core housing, lower die, pedestal, elastic support and jack unit.Above-mentioned upper mold core horizontal drives upper and lower displacement in top layer by the pressure head of mating forcing press, and upper mold core bottom face is equipped with ratchet die cavity.For the pedestal bottom face by uniformly distributed elastic support floating support, pedestal upper surface is equipped with core housing, core inner sleeve lower die and the core positioning installation that circular seam allowance supplies coaxial fitting.Axially extending bore of the mandril of the jack unit on pedestal directly pushes up lower die, forms the floating compression-molded structures of lower die collaboration upper mold core pressure.The utility model synchronously realizes end face ratchet and internal spline shaping, and forming quality is good, and production efficiency is high.The streamline of raw material is not damaged during cold closed-die forging most importantly, the lock ring metal structure of shaping is more closely knit, thus significantly improves intensity and wearability.
Description
Technical field
It is specifically, special the utility model is related to a kind of design of cold closed-die forging mould the utility model is related to a kind of design of forging die
It is not a kind of double floating type lock ring cold closed-die forging one step forming mould.
Background technology
Lock ring is a highly important driving member in automobile gearbox, and this annular construction member end face is equipped with ratchet, interior
Hole is additionally provided with the internal spline with back taper, and has higher position degree requirement between end face ratchet and internal spline.Due to be added at two
Ministry of worker position position differs 90 °, along with manufacturing process is also entirely different, so common process separates ratchet and internal spline
Processing realizes processing with different processes.Such as ratchet forging and stamping or milling process are made on end face, flower in processing
Key Roll-forming processes.Processing technology is with strong points respectively, and enforcement difficulty is relatively small, but process is more, production efficiency is poor, most
Big problem is that machining accuracy is not high, is extremely difficult to the position degree requirement of design.Under prior art conditions, the industry generally uses
Metallurgy forming process for powder realizes lock ring batch production.Metallurgy forming process for powder belongs to a kind of molding production, therefore is fabricated to
This is relatively low, production efficiency is high, machining accuracy is secure.But the shortcomings that fatal there are one metallurgy forming process for powder, is just
It is product tissue density contrast, manufactured lock ring wear-resisting property is relatively poor, has certain gap with the quality index of car kit,
Automaker extremely expects that the industry provides high intensity, high-precision lock ring as early as possible.
The content of the invention
The deficiency that the utility model forges and presses the end face ratchet and internal spline of lock ring mainly for the prior art in two steps, carries
Go out a kind of double floating type lock ring cold closed-die forging one step forming mould compact-sized, pressure is reasonable, forming quality is good, production efficiency is high, it should
The lock ring metal structure being molded as is fine and close, significantly improves the intensity and wear-resisting property of end face ratchet and internal spline.
The utility model is achieved through the following technical solutions technical goal.
Double floating type lock ring cold closed-die forging one step forming mould, it include upper mold core, Upper Die-sleeve, core, core inner sleeve, outside core
Set, lower die, pedestal, elastic support and jack unit.It is theed improvement is that：The upper mold core horizontal is in top layer and treats mating
Press ram connects, and the upper mold core bottom face of disc-shaped is equipped with ratchet die cavity, and outer wall is set with isometric Upper Die-sleeve composition footpath
To reinforced structure.The core inner sleeve merges with core housing coaxial sleeve to be collectively disposed under upper mold core, isometric with core inner sleeve
Core housing co-location be connected on pedestal.The pedestal bottom face is supported by uniformly distributed elastic support, is formed with upper mold
Core and Upper Die-sleeve axial displacement and dynamic floating support structure.The lower die is to justify sleeve-shaped member, between the core of inner cavity and placement
Gap coordinates, and for outer wall directly with core inner sleeve clearance fit, axially displaceable lower die axial length is shorter than core inner sleeve, leaves
Space is the die cavity for accommodating circular material blank.The core and core inner sleeve are isometric, and core epimere ring outer wall is equipped with internal spline die cavity,
Bottom face is by pedestal axial limiting.The pedestal upper surface be equipped with circular seam allowance for the core housing of coaxial fitting, core inner sleeve,
Lower die and core positioning installation are in the circular stop portion of lower die bottom face, and uniformly distributed 6~10 pass through only for jack unit towards upper ejector pin
The axially extending bore worn, jack unit are risen by top rod driving lower die, form the floating molding knot of lower die collaboration upper mold core pressure
Structure.
As the scheme that is further improved, the fitting and core inner sleeve of the upper mold core and Upper Die-sleeve and the fitting of core housing
Equally, it is interference fit.
As the scheme that is further improved, the elastic support at least forms a bearing-surface, elastic element therein by 3
It is nitrogen gas spring or disk spring or hydraulic cylinder.
As the scheme that is further improved, the mandril of the jack unit upward is the isometrical straight-bars of 20~25mm of diameter.
Dislocation shoulder is equipped with as the scheme that is further improved, between the lower die outer wall and core inner sleeve inner wall, under composition
The position limiting structure of mould uplink.
The utility model compared with prior art, has the positive effect that：
1st, the floating die pressing formation under location condition, simple in structure, reasonable stress, forming quality are good；
2nd, circular material blank step in mould completes end face ratchet and internal spline shaping, in addition to production efficiency is high, and positions
Pressure easily reaches the position degree requirement of setting；
3rd, the circular material blank of roll milling forming does not damage the streamline of raw material, the resultant metal group of shaping during cold closed-die forging
It knits more closely knit, is thus remarkably improved product strength and wearability.
Description of the drawings
Fig. 1 is the utility model structural profile illustration, and left side is the view of built-in circular material blank before pressure,
Right side is pressed into the view of lock ring for circular material blank after pressure.
Fig. 2 is upper mold core structural upright schematic diagram.
Fig. 3 is core mold structure stereoscopic schematic diagram.
Fig. 4 is finished product lock ring stereoscopic schematic diagram.
Specific embodiment
Below according to attached drawing and in conjunction with the embodiments, the utility model is described in further detail.
Double floating type lock ring cold closed-die forging one step forming mould shown in FIG. 1, it includes upper mold core 1, Upper Die-sleeve 2, core 3, core
Inner sleeve 4, core housing 5, lower die 6, pedestal 7, elastic support 8 and jack unit 9.The lock ring 11 that the present embodiment makes matches somebody with somebody looper car
Gearbox, because its volume is little, required forming pressure is relatively small, which is vertically applied by mating 800T forcing presses driving
Pressure.1 horizontal of upper mold core in the utility model in top layer with treating that the pressure head of mating forcing press is connected, 1 bottom of upper mold core of disc-shaped
End face is equipped with ratchet die cavity.In order to further strengthen upper mold core 1, isometric Upper Die-sleeve 2 is set on 1 outer wall of upper mold core.Position
Core housing 5 is set on 4 outer wall of core inner sleeve under upper mold core 1, this sleeve structure at two is coaxial fitting, and
Using micro interference fit, such detachable structure had not only played the role of radial reinforced, but also was conveniently replaceable vulnerable part.With core inner sleeve
The 4 isometric co-locations of core housing 5 are connected on pedestal 7, and 7 bottom face of pedestal is plane, it is by least 3 uniformly distributed elasticity
Bearing 8 supports jointly, forms the floating support structure lifted with upper mold core 1 and 2 axial displacement of Upper Die-sleeve, the present embodiment elasticity
8 mating quantity of bearing is mainly determined by two aspect factors, when the 11 specification size of lock ring of forging and stamping, second is that built in elastic support 8
Elastic element type.The lock ring 11 of small dimension is forged and pressed, then preferentially selects more nitrogen gas springs or disk spring, forges and presses big rule
The lock ring 11 of lattice then preferentially selects hydraulic cylinder to make elastic element, using then quantity is taken compared with fractional value during hydraulic cylinder.The lower die 6 is
Circle sleeve-shaped member, inner cavity and 3 clearance fit of core of placement, outer wall are axially displaceable directly with 4 clearance fit of core inner sleeve
6 axial length of lower die is shorter than core inner sleeve 4, and the space left is the die cavity for accommodating circular material blank 10.In order to which lower die 6 is controlled to set
Determine axial movement in scope, dislocation shoulder up and down is equipped between 4 inner wall of 6 outer wall of lower die and core inner sleeve, forms 6 uplink of lower die
Position limiting structure.The core 3 and core inner sleeve 4 are isometric, and 3 epimere ring outer wall of core is equipped with internal spline die cavity, and bottom face is by pedestal 7
Axial limiting.7 upper surface of pedestal is equipped with circular seam allowance, which supplies the core housing 5 of coaxial fitting, core inner sleeve
4th, 3 positioning installation of lower die and core.The circular stop portion for being in 6 bottom face of lower die is evenly distributed with 6~10 axially extending bores, jack unit
9 configure the mandril 9.1 of respective numbers through axially extending bore, mandril 9.1 and axially extending bore clearance fit upward, convenient for flexibly sliding
It is dynamic, it is achieved in jack unit 9 and 6 liters of lower die or drop is driven by mandril 9.1, form the floating that lower die 6 cooperates with upper mold core 1 to push
Compression-molded structures.The mandril 9.1 of jack unit 9 configures quantity in the utility model and 7 inner circle seam allowance of pedestal reserves axially extending bore number
Amount and aperture are equal, and concrete numerical value depends primarily upon the 11 specification size of lock ring of forging and stamping in the range of, and specification then reserves greatly quantity
More and aperture accordingly increases, otherwise gets the small value.The lock ring 11 of the present embodiment forging and stamping is car auxiliary equipment, and specification is smaller, so
The inner circle seam allowance of pedestal 7 reserves the axially extending bore of 6 φ 25mm, the mandril 9.1 of the also preset 6 φ 25mm of jack unit 9.
The utility model in actual use, first raises the pressure head of forcing press, drives upper mold core 1 synchronous with Upper Die-sleeve 2
Rise, while the jack unit 9 that links rises the lock ring 11 that upper one excellent suitability for press forming is ejected by lower die 6.Then, in die cavity
Next annular ring material 10 to be processed is put into, starting forcing press makes pressure head linkage 2 downlink of upper mold core 1 and Upper Die-sleeve, with core
Inner sleeve 4, core 3 cooperatively form closed mould cavity, upper mold core 1 and lower die 6 cooperation push out end face ratchet.It continues at this time
The upper mold core 1 and Upper Die-sleeve 2 of downlink overcome the elastic force of elastic support 8, promote core inner sleeve 4, core housing 5 and core 3 with
Pedestal 7 moves down together, and the mandril 9.1 of jack unit 9 withstands lower die 6 at this time, since the reduction of die cavity internal volume promotes circular material blank
10 are further squeezed out interior flower cone, and such internal spline with back taper is by compression moulding of mold.Above-mentioned punching course is
Once complete cold closed-die forging process synchronously completes 11 end face ratchet of lock ring and internal spline forming, repeats above-mentioned action process
It can realize efficient batch production.
The utility model floating die pressing formation under location condition, forming quality is good, production efficiency is high, it is most important that same
The end face ratchet of step shaping is realized with internal spline position degree by mold, therefore position degree is easily up to standard.In addition, the annular base of roll milling forming
Material 10 does not damage the streamline of raw material during cold closed-die forging, and 11 metal structure of lock ring of shaping is more closely knit, thus significantly carries
High intensity and wearability.
Claims (7)
1. a kind of double floating type lock ring cold closed-die forging one step forming mould, it includes upper mold core（1）, Upper Die-sleeve（2）, core（3）, in core
Set（4）, core housing（5）, lower die（6）, pedestal（7）, elastic support（8）And jack unit（9）；It is characterized in that：On described
Mold core（1）Horizontal in top layer with treating that mating press ram is connected, the upper mold core of disc-shaped（1）Bottom face is equipped with ratchet mould
Chamber, outer wall are set with isometric Upper Die-sleeve（2）Form radial reinforced structure；The core inner sleeve（4）With core housing（5）Coaxial sleeve
Merging is collectively disposed at upper mold core（1）Under, with core inner sleeve（4）Isometric core housing（5）Co-location is connected to pedestal（7）
On；The pedestal（7）Bottom face is by uniformly distributed elastic support（8）Supporting, is formed with upper mold core（1）And Upper Die-sleeve（2）Axial position
It moves and dynamic floating support structure；The lower die（6）For circle sleeve-shaped member, inner cavity and the core of placement（3）Clearance fit, outer wall
Directly with core inner sleeve（4）Clearance fit, axially displaceable lower die（6）Axial length is than core inner sleeve（4）Sky that is short, leaving
Between be accommodate circular material blank（10）Die cavity；The core（3）With core inner sleeve（4）It is isometric, core（3）Epimere ring outer wall is equipped with
Internal spline die cavity, bottom face is by pedestal（7）Axial limiting；The pedestal（7）Upper surface is equipped with circular seam allowance for coaxial fitting
Core housing（5）, core inner sleeve（4）, lower die（6）And core（3）Positioning installation is in lower die（6）The circular seam allowance of bottom face
Place, uniformly distributed 6~10 only for jack unit（9）Towards upper ejector pin（9.1）Perforative axially extending bore, jack unit（9）Pass through mandril
（9.1）Drive lower die（6）It rises, forms lower die（6）Cooperate with upper mold core（1）The floating compression-molded structures of pressure.
2. double floating type lock ring cold closed-die forging one step forming mould according to claim 1, it is characterised in that：The upper mold core（1）
With Upper Die-sleeve（2）Fitting and core inner sleeve（4）With core housing（5）Fitting it is the same, be interference fit.
3. double floating type lock ring cold closed-die forging one step forming mould according to claim 1, it is characterised in that：The elastic support
（8）A bearing-surface at least is formed by 3, elastic element therein is nitrogen gas spring.
4. double floating type lock ring cold closed-die forging one step forming mould according to claim 1, it is characterised in that：The elastic support
（8）A bearing-surface at least is formed by 3, elastic element therein is disk spring.
5. double floating type lock ring cold closed-die forging one step forming mould according to claim 1, it is characterised in that：The elastic support
（8）A bearing-surface at least is formed by 3, elastic element therein is hydraulic cylinder.
6. double floating type lock ring cold closed-die forging one step forming mould according to claim 1, it is characterised in that：The jack unit
（9）Mandril upward（9.1）For the isometrical straight-bars of 20~25mm of diameter.
7. double floating type lock ring cold closed-die forging one step forming mould according to claim 1, it is characterised in that：The lower die（6）Outside
Wall and core inner sleeve（4）Dislocation shoulder up and down is equipped between inner wall, forms lower die（6）The position limiting structure of uplink.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721282455.2U CN207447247U (en) | 2017-09-30 | 2017-09-30 | Double floating type lock ring cold closed-die forging one step forming mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721282455.2U CN207447247U (en) | 2017-09-30 | 2017-09-30 | Double floating type lock ring cold closed-die forging one step forming mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207447247U true CN207447247U (en) | 2018-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721282455.2U Active CN207447247U (en) | 2017-09-30 | 2017-09-30 | Double floating type lock ring cold closed-die forging one step forming mould |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107520390A (en) * | 2017-09-30 | 2017-12-29 | 江苏太平洋精锻科技股份有限公司 | Double floating type lock ring cold closed-die forging one step forming mould |
| CN110732617A (en) * | 2019-11-27 | 2020-01-31 | 徐州九鼎锻造科技有限公司 | annular die with pressure relief structure for annular forging |
-
2017
- 2017-09-30 CN CN201721282455.2U patent/CN207447247U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107520390A (en) * | 2017-09-30 | 2017-12-29 | 江苏太平洋精锻科技股份有限公司 | Double floating type lock ring cold closed-die forging one step forming mould |
| CN110732617A (en) * | 2019-11-27 | 2020-01-31 | 徐州九鼎锻造科技有限公司 | annular die with pressure relief structure for annular forging |
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