CN107520390A - 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
- Publication number
- CN107520390A CN107520390A CN201710922864.2A CN201710922864A CN107520390A CN 107520390 A CN107520390 A CN 107520390A CN 201710922864 A CN201710922864 A CN 201710922864A CN 107520390 A CN107520390 A CN 107520390A
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- China
- Prior art keywords
- core
- lock ring
- die
- sleeve
- lower mould
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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
Abstract
The invention discloses a kind of double floating type lock ring cold closed-die forging one step forming mould, and it includes upper mold core, Upper Die-sleeve, core, core inner sleeve, core overcoat, lower mould, base, elastic support and jack unit.Above-mentioned upper mold core horizontal drives upper and lower displacement in top layer by the pressure head of supporting forcing press, and upper mold core bottom face is provided with ratchet die cavity.The base bottom face is provided with circular seam and is supplied mould and core positioning installation under the core overcoat of coaxial fit, core inner sleeve by uniform elastic support floating support, base upper surface.Axially extending bore of the push rod of the jack unit on base directly pushes up lower mould, forms the floating compression-molded structures of lower mould collaboration upper mold core pressure.The present invention 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 above all, the lock ring metal structure of shaping is more closely knit, thus significantly improves intensity and wearability.
Description
Technical field
The present invention relates to a kind of design of forging die, in particular it relates to a kind of cold closed-die forging mould designs, it is particularly 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 provided 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, i.e., realize 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 that lock ring is produced in batches.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 metallurgy forming process for powder have one it is fatal the shortcomings that just
It is product tissue density contrast, manufactured lock ring anti-wear performance 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
Present invention is generally directed to the deficiency that prior art forges and presses in two steps to the end face ratchet and internal spline of lock ring, proposes one
Kind is compact-sized, pressure is reasonable, the double floating type lock ring cold closed-die forging one step forming mould that forming quality is good, production efficiency is high, the molding
Into lock ring metal structure it is fine and close, significantly improve the intensity and anti-wear performance of end face ratchet and internal spline.
The present invention 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 mould, base, elastic support and jack unit.It is theed improvement is that：The upper mold core horizontal is in top layer and treats supporting
Press ram connects, and the upper mold core bottom face of disc-shaped is provided 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 overcoat coaxial sleeve to be collectively disposed under upper mold core, isometric with core inner sleeve
Core overcoat be located by connecting on jointly on base.The base bottom face is supported by uniform elastic support, is formed with upper mould
Core and Upper Die-sleeve axial displacement and dynamic floating support structure.The lower mould is to justify sleeve-shaped member, between the core of inner chamber and placement
Gap coordinates, and outer wall directly coordinates with core inner sleeve gap, and axially displaceable lower mould 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 provided with internal spline die cavity,
Bottom face is by base axial limiting.The base upper surface be provided with circular seam for the core overcoat of coaxial fit, core inner sleeve,
Lower mould and core positioning installation, the circular stop portion of lower mould bottom face is in, uniform 6~10 pass through only for jack unit towards upper ejector pin
The axially extending bore worn, jack unit are risen by mould under top rod driving, form the floating molding knot of lower mould collaboration upper mold core pressure
Structure.
As further improvement project, the fit and core inner sleeve of the upper mold core and Upper Die-sleeve and the fit of core overcoat
Equally, it is interference fit.
As further improvement project, the elastic support at least forms a bearing-surface, flexible member therein by 3
It is nitrogen spring or disk spring or hydraulic cylinder.
As further improvement project, the push rod of the jack unit upward is 20~25 isometrical straight-bar of diameter.
Dislocation shoulder is provided with as further improvement project, between the lower mould outer wall and core inner sleeve inwall, under composition
The up position limiting structure of mould.
The present invention compared with prior art, has the positive effect that：
1st, the floating die pressing formation under location condition, simple in construction, 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 reach the position degree requirement of setting；
3rd, the circular material blank of roll milling forming does not damage the streamline of raw material during cold closed-die forging, and the resultant metal tissue of shaping is more
It is closely knit, thus it is remarkably improved product strength and wearability.
Brief description of the drawings
Fig. 1 is structural profile illustration of the present invention, and left side is the view of built-in circular material blank before pressure, and the right side is partly
Portion 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 schematic perspective view.
Fig. 4 is finished product lock ring schematic perspective view.
Embodiment
Below according to accompanying drawing and in conjunction with the embodiments, the invention will be further described.
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 overcoat 5, lower mould 6, base 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, and the finishing die is vertically applied by supporting 800T forcing presses driving
Pressure.The horizontal of upper mold core 1 in the present invention in top layer with treating that the pressure head of supporting forcing press is connected, the bottom face of upper mold core 1 of disc-shaped
It is provided with ratchet die cavity.In order to further strengthen upper mold core 1, isometric Upper Die-sleeve 2 is set with the outer wall of upper mold core 1.Positioned at upper
Core overcoat 5 is set with the outer wall of core inner sleeve 4 under core rod 1, this sleeve structure at two is coaxial fit, and is used
Micro interference fit, such a demountable structure had both played radial reinforced effect, and be conveniently replaceable consumable accessory again.With core inner sleeve 4 etc.
Long core overcoat 5 is located by connecting on base 7 jointly, and the bottom face of base 7 is plane, and it is propped up by least 3 uniform elasticity
The supporting jointly of seat 8, form the floating support structure lifted with upper mold core 1 and the axial displacement of Upper Die-sleeve 2, the present embodiment elasticity branch
8 supporting quantity of seat are mainly determined by two aspect factors, when the specification size of lock ring 11 of forging and stamping, second, built in elastic support 8
The type of flexible member.The lock ring 11 of small dimension is forged and pressed, then preferentially selects more nitrogen springs or disk spring, forges and presses big specification
Lock ring 11 it is then preferential make flexible member from hydraulic cylinder, using then quantity is taken compared with fractional value during hydraulic cylinder.The lower mould 6 is circle
Sleeve-shaped member, inner chamber and the gap of core 3 of placement coordinate, and outer wall directly coordinates with the gap of core inner sleeve 4, under axially displaceable
The axial length of mould 6 is shorter than core inner sleeve 4, and the space left is the die cavity for accommodating circular material blank 10.In order to control lower mould 6 setting
In the range of move axially, dislocation shoulder up and down is provided between the lower outer wall of mould 6 and the inwall of core inner sleeve 4, forms the up limit of lower mould 6
Bit architecture.The core 3 and core inner sleeve 4 are isometric, and the epimere ring outer wall of core 3 is provided with internal spline die cavity, and bottom face is by the axle of base 7
To spacing.The upper surface of base 7 is provided with circular seam, the circular seam for the core overcoat 5 of coaxial fit, core inner sleeve 4,
Lower mould and core 3 positioning installation.It is in uniform 6~10 axially extending bores of circular stop portion of the lower bottom face of mould 6, jack unit 9
The push rod 9.1 for configuring respective numbers upward runs through axially extending bore, and push rod 9.1 coordinates with axially extending bore gap, is easy to easy slide,
6 liters of mould or drop under jack unit 9 is driven by push rod 9.1 are achieved in, forms the floating die that lower mould 6 cooperates with upper mold core 1 to push
Laminated structure.The push rod 9.1 of jack unit 9 configures quantity in the present invention and the inner circle seam of base 7 reserves axially extending bore quantity and hole
Footpath is equal, and concrete numerical value depends primarily on the specification size of lock ring 11 of forging and stamping in the range of, specification then reserve greatly quantity it is 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 base 7
Inner circle seam reserves 6 φ 25mm axially extending bore, the also preset 6 φ 25mm of jack unit 9 push rod 9.1.
During present invention actual use, the pressure head of forcing press is raised first, drives upper mold core 1 and Upper Die-sleeve 2 synchronously to rise,
The jack unit 9 that links simultaneously rises the lock ring 11 that upper one excellent suitability for press forming is ejected by lower mould 6.Then, toward being put into die cavity
Next annular ring material 10 to be processed, starting forcing press makes pressure head linkage upper mold core 1 and Upper Die-sleeve 2 descending, with core inner sleeve
4, core 3 cooperatively form closed mould cavity, extrude end face ratchet in the case where upper mold core 1 and lower mould 6 coordinate.Now continue to descending
Upper mold core 1 and Upper Die-sleeve 2 overcome the elastic force of elastic support 8, promote core inner sleeve 4, core overcoat 5 and core 3 with base 7
Move down together, now the push rod 9.1 of jack unit 9 withstands lower mould 6, promotes circular material blank 10 to enter one because die cavity internal volume reduces
Step is squeezed out interior flower cone, and such a internal spline with back taper is once compressing by mould.Above-mentioned punching course is once complete
Whole cold closed-die forging process, the end face ratchet of lock ring 11 and internal spline forming are synchronously completed, repeating above-mentioned action process can be real
Now efficiently batch production.
Present invention floating die pressing formation under location condition, forming quality is good, production efficiency is high, it is most important that it is synchronous into
The end face ratchet of shape is realized with internal spline position degree by mould, therefore position degree is easily up to standard.In addition, the circular material blank 10 of roll milling forming
The streamline of raw material is not damaged during cold closed-die forging, the metal structure of lock ring 11 of shaping is more closely knit, thus significantly improves strong
Degree 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 overcoat（5）, lower mould（6）, base（7）, elastic support（8）And jack unit（9）；It is characterized in that：On described
Core rod（1）Horizontal in top layer with treating that supporting press ram is connected, the upper mold core of disc-shaped（1）Bottom face is provided 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 overcoat（5）Coaxial sleeve
Merging is collectively disposed at upper mold core（1）Under, with core inner sleeve（4）Isometric core overcoat（5）Base is located by connecting on jointly（7）
On；The base（7）Bottom face is by uniform elastic support（8）Supporting, is formed with upper mold core（1）And Upper Die-sleeve（2）Axial position
Move and dynamic floating support structure；The lower mould（6）For circle sleeve-shaped member, inner chamber and the core of placement（3）Gap coordinates, outer wall
Directly with core inner sleeve（4）Gap coordinates, axially displaceable lower mould（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 provided with
Internal spline die cavity, bottom face is by base（7）Axial limiting；The base（7）Upper surface is provided with circular seam for coaxial fit
Core overcoat（5）, core inner sleeve（4）, lower mould（6）And core（3）Positioning installation, it is in lower mould（6）The circular seam of bottom face
Place, uniform 6~10 only for jack unit（9）Towards upper ejector pin（9.1）The axially extending bore run through, jack unit（9）Pass through push rod
（9.1）The lower mould of driving（6）Rise, form lower mould（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）Fit and core inner sleeve（4）With core overcoat（5）Fit 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, flexible member therein is nitrogen 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, flexible member 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, flexible member 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）Push rod upward（9.1）For 20~25 isometrical straight-bar 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 mould（6）Outside
Wall and core inner sleeve（4）Dislocation shoulder up and down is provided between inwall, forms lower mould（6）Up position limiting structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710922864.2A CN107520390A (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 |
|---|---|---|---|
| CN201710922864.2A CN107520390A (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 |
|---|---|
| CN107520390A true CN107520390A (en) | 2017-12-29 |
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ID=60683966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710922864.2A Pending CN107520390A (en) | 2017-09-30 | 2017-09-30 | Double floating type lock ring cold closed-die forging one step forming mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107520390A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112846066A (en) * | 2021-03-05 | 2021-05-28 | 苏州市旭飞精密机械有限公司 | Extrusion processing technology of traction ring |
| CN113042672A (en) * | 2021-03-29 | 2021-06-29 | 重庆大学 | Large-thickness-difference plate part stamping die structure and forming process |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008238234A (en) * | 2007-03-28 | 2008-10-09 | Kuribayashi Seisakusho:Kk | Warm-forging press apparatus for manufacturing forge-ring and method for manufacturing forged-ring using this |
| CN103480785A (en) * | 2013-09-27 | 2014-01-01 | 江苏太平洋精锻科技股份有限公司 | Cold sizing die for cam ring positioned by ratchets |
| CN104624918A (en) * | 2013-11-08 | 2015-05-20 | 本田技研工业株式会社 | Method of manufacturing gear and forging apparatus for manufacturing gear |
| CN105983639A (en) * | 2015-01-27 | 2016-10-05 | 王家宣 | Integral light alloy rim isothermal forging die |
| CN206316303U (en) * | 2016-12-19 | 2017-07-11 | 江苏太平洋齿轮传动有限公司 | The small gear ring radial direction wedge pressure mould of combination gear |
| CN207447247U (en) * | 2017-09-30 | 2018-06-05 | 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 |
-
2017
- 2017-09-30 CN CN201710922864.2A patent/CN107520390A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008238234A (en) * | 2007-03-28 | 2008-10-09 | Kuribayashi Seisakusho:Kk | Warm-forging press apparatus for manufacturing forge-ring and method for manufacturing forged-ring using this |
| CN103480785A (en) * | 2013-09-27 | 2014-01-01 | 江苏太平洋精锻科技股份有限公司 | Cold sizing die for cam ring positioned by ratchets |
| CN104624918A (en) * | 2013-11-08 | 2015-05-20 | 本田技研工业株式会社 | Method of manufacturing gear and forging apparatus for manufacturing gear |
| CN105983639A (en) * | 2015-01-27 | 2016-10-05 | 王家宣 | Integral light alloy rim isothermal forging die |
| CN206316303U (en) * | 2016-12-19 | 2017-07-11 | 江苏太平洋齿轮传动有限公司 | The small gear ring radial direction wedge pressure mould of combination gear |
| CN207447247U (en) * | 2017-09-30 | 2018-06-05 | 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112846066A (en) * | 2021-03-05 | 2021-05-28 | 苏州市旭飞精密机械有限公司 | Extrusion processing technology of traction ring |
| CN113042672A (en) * | 2021-03-29 | 2021-06-29 | 重庆大学 | Large-thickness-difference plate part stamping die structure and forming process |
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