CN206316303U - The small gear ring radial direction wedge pressure mould of combination gear - Google Patents
The small gear ring radial direction wedge pressure mould of combination gear Download PDFInfo
- Publication number
- CN206316303U CN206316303U CN201621392856.9U CN201621392856U CN206316303U CN 206316303 U CN206316303 U CN 206316303U CN 201621392856 U CN201621392856 U CN 201621392856U CN 206316303 U CN206316303 U CN 206316303U
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- China
- Prior art keywords
- mould
- inner sleeve
- core print
- tooth
- print seat
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- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of small gear ring radial direction wedge pressure mould of combination gear, it includes tooth mould, overcoat, inner sleeve, ring flat-plate, spring, mould base, elastic ring and the core print seat under pressure head, gear blank.The endoporus upper oral part of the inner sleeve is the radial support structure that shoulder is small end interporal lacuna cooperation composition in upper axis of cone section, outer wall of inside race and overcoat leans against gear blank outside the taper hole of horn mouth upward, overcoat top.The tooth mould upper end outer wall is the axis of cone coordinated with inner sleeve endoporus upper oral part taper hole, and tooth mould constitutes radial direction wedge pressure structure with inner sleeve.At least by the reserved radial clearance of small gear ring tooth height between core print seat and tooth the mould shrinking section, core print seat outer wall is embedded in elastic ring provided with annular groove, and exposed elastic ring constitutes elastic expanding structure between core print seat and tooth mould.Tooth mould of the present utility model leans against the inner sleeve and overcoat of phase fit, dramatically increases the bending strength of tooth mould, not only improves raising extruding quality and production efficiency, is also beneficial to improve the service life of tooth mould.
Description
Technical field
The utility model is related to a kind of forging die structure design, specifically, and the utility model is related to a kind of for cold extrusion
The forging die of gear, particularly a kind of radial direction wedge pressure mould for the small gear ring shaping of automobile combination gear.
Background technology
The combination gear configured in automobile gearbox is a kind of particularly compact cluster gear of structure.Combination gear configuration two
The gear ring only differed in size, axial only several millimeters of spacing between the two, because without enough withdrawing distances when machining small gear ring,
Processing can not be realized with conventional cutting process, prior art can only add welding forming technique to realize that batch is raw using shrink-fit structure
Production.The combination gear of such a welding forming technique productions except the accuracy of manufacture be difficult it is up to standard in addition to, also there is welding thermal deformation and residual
Stress problem, and production efficiency is also very low.Technological progress and equipment updating with modern manufacturing industry, cold closed-die forging technology
Industrial applications are obtained in the industry.Cold closed-die forging technology is one and the skill for making blank produce plastic deformation is extruded by mould
Art, the technology is applied to combination gear production very properly, and it can realize two gear ring synchronous formings processing by mould extruding,
Above all the combination gear through cold-extrusion shaping still retains the original streamline of metal material, so the product strength of output
It is higher than prior art, and the accuracy of manufacture is high and production efficiency is high.But, the diameter of combination gear, which only has, picks up centimetre or so, matches somebody with somebody
The cold extruding die volume of set also less, built-in tooth mould is architectural limitation, cross-sectional area can not possibly reserve it is excessive, along with cold-extruded
Pressing mold unit area carrying pressure is larger, and tooth mould is also easy to produce stress damage during cold extrusion.Tooth mould is the core component of cold extruding die,
Once tooth mould is damaged, whole cold extruding die cannot be used to produce, and its economic loss is very big.
Utility model content
The problem of the utility model can not realize combination gear small gear ring teeth portion shaping by stock removal mainly for prior art, carries
Go out a kind of small gear ring radial direction wedge pressure mould of combination gear of application cold precision forging technology, the mould is realized by wedge pressure structure and radially applied
Power is extruded, tooth mould reasonable stress, and small gear ring shaping is accurate, steady quality, and production efficiency is high.
The utility model is achieved through the following technical solutions technical goal.
The small gear ring radial direction wedge pressure mould of combination gear, it includes the tooth mould under pressure head, gear blank, overcoat, inner sleeve, ring
Plate, spring, mould base, elastic ring and core print seat.The mould base horizontal on the table, is inserted by interior respectively in shrinkage pool upward
The outwards sequentially coaxially core print seat of fit, tooth mould, inner sleeve and overcoat, by being vertically arranged between core print seat and the bottom face and mould base of overcoat
Spring-loaded, core print seat, tooth mould, inner sleeve and overcoat are equipped with radial direction evagination shoulder.The ring flat-plate location and installation in mould base upward
Corresponding end-faces on, be radially staggered connected ring flat-plate and constitute the corresponding up limitation of core print seat, inner sleeve and overcoat.On the core print seat
It is up that the ring flat-plate of end face location and installation directly limits tooth mould.It is theed improvement is that：The endoporus upper oral part of the inner sleeve is loudspeaker
Shoulder is the axis of cone section of small end upward outside the taper hole of mouth upward, overcoat top, and outer wall of inside race coordinates with interporal lacuna in overcoat to be constituted
Lean against the radial support structure of gear blank.The tooth mould upper end outer wall is the axis of cone coordinated with inner sleeve endoporus upper oral part taper hole, tooth mould
Match somebody with somebody the radial direction wedge pressure structure being combined into displacement process to axial with radial displacement with inner sleeve.The core print seat and tooth die sleeve
At least by the reserved radial clearance of small gear ring tooth height between conjunction section, core print seat outer wall is provided with annular groove setting-in elastic ring, exposed bullet
Property circle elastic expanding structure is constituted between core print seat and tooth mould.
As further improvement project, 2~6mm of preset clearance between core print seat and tooth the mould shrinking section.
As further improvement project, the taper fit of the tooth mould and inner sleeve, 5 °~15 ° of its taper angle.
As further improvement project, the elastic ring cross section is circle, and material is rubber.
The utility model compared with prior art, has the positive effect that：
1st, tooth mould and inner sleeve taper fit directly constitute radial direction wedge pressure structure, and each tooth mould is inwardly synchronous, equivalent extruding, cold
The small gear ring teeth portion shaping of extruding is accurate；
2nd, tooth mould leans against phase fit inner sleeve and overcoat, dramatically increases the bending strength of tooth mould, is conducive to improving making for tooth mould
Use the life-span；
3rd, the disposable cold-extrusion shaping of the small gear ring of conjunction gear, steady quality, production efficiency is high.
Brief description of the drawings
Fig. 1 is the utility model structural profile schematic diagram, and figure displaying gear blank is in the finish-forging stage.
Fig. 2 is the state after pressure head rises after another working condition of Fig. 1, i.e. gear blank extrusion molding.
Fig. 3 is the stereogram of core print seat.
Fig. 4 is the schematic perspective view of inner sleeve.
Fig. 5 is the stereogram of tooth mould.
Embodiment
Below according to accompanying drawing and in conjunction with the embodiments, the utility model is described in further detail.
The small gear ring radial direction wedge pressure mould of combination gear shown in Fig. 1 and Fig. 2, it includes being located at the tooth under pressure head A, gear blank B
Mould 1, overcoat 2, inner sleeve 3, ring flat-plate 4, spring 5, mould base 6, elastic ring 7 and core print seat 8.The mould base 6 is the master of cold extruding die
Body component, is combined based on this.The direct horizontal of mould base 6 is inserted respectively on press bed in shrinkage pool upward
The core print seat 8 of coaxial fit, tooth mould 1, inner sleeve 3 and overcoat 2 from inside to outside.The core print seat 8 is as shown in figure 3, the bottom of it and overcoat 2
By the elastic bearing of spring 5 being vertically arranged between face and mould base 6, it can be axially moved up and down in tolerance band.In order to limit each part
Between axial movement, core print seat 8, tooth mould 1, inner sleeve 3 and overcoat 2 are equipped with radial direction evagination shoulder, corresponded to upward using mould base 6
End face location and installation ring flat-plate 4, every ring flat-plate 4 be all radially staggered composition it is up to corresponding core print seat 8, inner sleeve 3 and overcoat 2
Limiting structure.It is up that tooth mould 1 is directly limited in the ring flat-plate 4 of the upper surface location and installation of core print seat 8.The utility model is in order to reach combination
The small gear ring of gear disposably completes the purpose of cold radial extrusion pressing formation, and the special endoporus upper oral part by inner sleeve 3 as shown in Figure 4 is designed
Into the taper hole of horn mouth upward, the built-in upper end outer wall of tooth mould 1 is that this section of taper angle is 8 ° in the axis of cone matched, the present embodiment
The axis of cone directly coordinate with the endoporus upper oral part of inner sleeve 3 and constitute a kind of wedge pressure structure, such a radial direction wedge pressure structure once occurring relative
It is axially moved, just produces radial compression or radial direction retracting action.The pressure that tooth mould 1 is born when implementing radial compression is maximum, and
Radial force is concentrated mainly on the tooth ends of tooth mould 1, easily triggers the broken teeth accident of tooth mould 1.Due to being limited by mould structure space,
The cross section of tooth mould 1 can not possibly be reserved very greatly, for this problem the utility model on the basis of the original cross section of tooth mould 1, be adopted
It can strengthen tooth mould 1 with one kind, and the radial support structure for not influenceing tooth mould 1 to move, the structure is by the outer wall of inner sleeve 3 and overcoat 2
Interior interporal lacuna coordinates, and shoulder directly depends on pleodont base B outside the top of overcoat 2 during radial compression, is consequently formed the radial support of tooth mould 1,
So as to greatly improve the bending strength of tooth mould 1, it can avoid occurring broken teeth accident, be effectively increased the service life of tooth mould 1.Shown in Fig. 5
Tooth mould 1 when implementing radial compression with a certain amount of radial displacement, after the gear blank B demouldings of completion, it is necessary to ensure that tooth mould 1
Initial position is timely and accurately returned to, the utility model is at least high pre- by small gear ring tooth between core print seat 8 and the shrinking section of tooth mould 1
Radial clearance, the small a height of 3.0mm of gear ring tooth of the present embodiment are stayed, therefore reserved radial clearance is also 3.0mm.In addition, the outer wall of core print seat 8 is set
There is annular groove to be embedded in elastic ring 7, the cross section of elastic ring 7 of the present embodiment configuration is circle, and material is rubber.Elastic ring 7 is situated between
Elastic ring 7 is pressurized when elastic expanding structure, i.e. radial compression is constituted between core print seat 8 and tooth mould 1, elastic ring 7 when gear blank B is stripped
Lose and constrain and resilience, help tooth mould 1 to be moved outwards and keep cooperation with inner sleeve 3.
It is to be processed toward being put into next in mould again after the pressure head A of forcing press rises when the utility model is actually used
Gear blank B, descending pressure head A directly press gear blank B, the gear blank B compactings outer ring 2 of compression, tooth mould 1, core print seat 8, the phase of tooth mould 1 moved down
Inner sleeve 3 is radially inwardly moved, i.e., the increment of tooth mould 1 is implemented to shape small gear ring radial compression, and extruding finishes rear pressure head A therewith
Rise, the overcoat 2 and core print seat 8 that original is pressurized rise to initial position in the presence of spring 5, while also promoting gear blank B to rise, now
Tooth mould 1 also coordinates under the bounce effect of elastic ring 7 with inner sleeve 3.Taken out from mould and completed small gear ring cold-extrusion shaping
Gear blank B, the another that changes the outfit gear blank B to be processed, are realized with this cycle operation and produced in batches.
Claims (4)
1. a kind of small gear ring radial direction wedge pressure mould of combination gear, it includes being located at pressure head（A）, gear blank（B）Under tooth mould（1）, it is outer
Set（2）, inner sleeve（3）, ring flat-plate（4）, spring（5）, mould base（6）, elastic ring（7）And core print seat（8）；The mould base（6）Horizontal
On the table, the core print seat of sequentially coaxially fit is inserted from inside to outside in shrinkage pool upward respectively（8）, tooth mould（1）, inner sleeve（3）
And overcoat（2）, core print seat（8）And overcoat（2）Bottom face and mould base（6）Between by the spring that is vertically arranged（5）Supporting, core print seat（8）、
Tooth mould（1）, inner sleeve（3）And overcoat（2）It is equipped with radial direction evagination shoulder；The ring flat-plate（4）Location and installation is in mould base（6）Upward
Corresponding end-faces on, be radially staggered connected ring flat-plate（4）Constitute corresponding core print seat（8）, inner sleeve（3）And overcoat（2）Up limit
System；The core print seat（8）The ring flat-plate of upper surface location and installation（4）Directly limit tooth mould（1）It is up；It is characterized in that：The inner sleeve
（3）Endoporus upper oral part be the taper hole of horn mouth upward, overcoat（2）Shoulder is the axis of cone section of small end upward, inner sleeve outside top（3）
Outer wall and overcoat（2）Interior interporal lacuna coordinates composition to lean against gear blank（B）Radial support structure；The tooth mould（1）Upper end outer wall is
With inner sleeve（3）The axis of cone that endoporus upper oral part taper hole coordinates, tooth mould（1）With inner sleeve（3）With being combined into displacement process to axial
In with radial displacement radial direction wedge pressure structure；The core print seat（8）With tooth mould（1）It is at least high pre- by small gear ring tooth between shrinking section
Stay radial clearance, core print seat（8）Outer wall is embedded in elastic ring provided with annular groove（7）, exposed elastic ring（7）Between core print seat（8）With
Tooth mould（1）Between constitute elastic expanding structure.
2. the small gear ring radial direction wedge pressure mould of combination gear according to claim 1, it is characterised in that：The core print seat（8）With tooth
Mould（1）2~6mm of preset clearance between shrinking section.
3. the small gear ring radial direction wedge pressure mould of combination gear according to claim 1, it is characterised in that：The tooth mould（1）With it is interior
Set（3）Taper fit, 5 °~15 ° of its taper angle.
4. the small gear ring radial direction wedge pressure mould of combination gear according to claim 1, it is characterised in that：The elastic ring（7）It is horizontal
Section is circle, and material is rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621392856.9U CN206316303U (en) | 2016-12-19 | 2016-12-19 | The small gear ring radial direction wedge pressure mould of combination gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621392856.9U CN206316303U (en) | 2016-12-19 | 2016-12-19 | The small gear ring radial direction wedge pressure mould of combination gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206316303U true CN206316303U (en) | 2017-07-11 |
Family
ID=59268273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621392856.9U Withdrawn - After Issue CN206316303U (en) | 2016-12-19 | 2016-12-19 | The small gear ring radial direction wedge pressure mould of combination gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206316303U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107335768A (en) * | 2016-12-19 | 2017-11-10 | 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 |
| 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 |
| CN110170567A (en) * | 2019-06-18 | 2019-08-27 | 上海春日机械工业有限公司 | A kind of processing mold and processing method of automotive brake gear |
| CN110640074A (en) * | 2018-06-26 | 2020-01-03 | 韩虎产业株式会社 | Hot forging method and device for composite clutch gear shape part for vehicle |
-
2016
- 2016-12-19 CN CN201621392856.9U patent/CN206316303U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107335768A (en) * | 2016-12-19 | 2017-11-10 | 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 |
| CN107335768B (en) * | 2016-12-19 | 2019-04-12 | 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 |
| 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 |
| CN110640074A (en) * | 2018-06-26 | 2020-01-03 | 韩虎产业株式会社 | Hot forging method and device for composite clutch gear shape part for vehicle |
| CN110170567A (en) * | 2019-06-18 | 2019-08-27 | 上海春日机械工业有限公司 | A kind of processing mold and processing method of automotive brake gear |
| CN110170567B (en) * | 2019-06-18 | 2024-01-19 | 上海春日机械工业有限公司 | Machining die and machining method for automobile brake gear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170711 Effective date of abandoning: 20190412 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20170711 Effective date of abandoning: 20190412 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |