CN206153478U - Cold forging die of shaping major part rodlet class part - Google Patents
Cold forging die of shaping major part rodlet class part Download PDFInfo
- Publication number
- CN206153478U CN206153478U CN201620934244.1U CN201620934244U CN206153478U CN 206153478 U CN206153478 U CN 206153478U CN 201620934244 U CN201620934244 U CN 201620934244U CN 206153478 U CN206153478 U CN 206153478U
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- CN
- China
- Prior art keywords
- die
- sleeve
- benevolence
- cold forging
- formwork
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a cold forging die of shaping major part rodlet class part, the lower mould of this cold forging die include that the top -down cover establishes the merciful and peaceful gasket of lower mould in lower mold sleeve, wherein, lower mould benevolence establish by a centre form benevolence cover and constitute in an external mold benevolence, centre form benevolence and external mold benevolence cold pressing and registrate, the combination of external mold benevolence and lower mold sleeve hot jacket, gasket and lower mold sleeve clearance fit, a spiro union spare spiro union is in the lower mould shell to upwards replace lower mold sleeve, so that lower mold sleeve and lower mould shell cold pressing and registrate, spiro union spare on be equipped with the counter bore, the top of spiro union spare is equipped with oblique chamfer, in be equipped with the recess to chamfer to one side on the lower mould shell, this recess with it adjusts the clearance to form between the chamfer to one side. This cold forging die has greatly improved the intensity and the life -span of die.
Description
Technical field
The utility model is related to a kind of mould, particularly relates to a kind of cold forging punch die of the little bar part of shaping major part.
Background technology
The cold-forge forming of the little bar workpiece of major part, need to forge processing, shape with the punch die of upper cores macropore and lower die aperture
The wall thickness of Cheng Shangmo is little, and the big wall unevenness feature of the wall thickness of lower mould, cause when founding upper and lower die by upper and lower formwork group
Its precompressed amount it is serious unbalanced so that punch die failure, punch die failure mode mainly have abrasion or ftracture.
The wear out failure refers to that the size for causing workpiece because dies cavity weares and teares exceeds design requirement, and Cracking Failure
Refer to and not yet reach before the limit of wear, the earlier period damage caused because crackle and its extension occurs in dies cavity, cracking loses
Effect divides plastic cracking and fatigue cracking again.The upper and lower formwork group when founding upper and lower die the failure of caused punch die be mould fatigue
Cracking, and now there is not deviation, i.e. wear out failure and does not also occur in the size of workpiece.
Utility model content
For the problem that prior art is present, the purpose of this utility model is to provide a kind of little component of rod category of shaping major part
Cold forging punch die, greatly improves intensity and the life-span of punch die.
For achieving the above object, technical solutions of the utility model are：
A kind of cold forging punch die for being molded the little component of rod category of major part, the cold forging punch die includes upper die and lower die；Described lower mould
Including the lower die and the pad that are set in from top to bottom in lower die-sleeve；Wherein, described lower die is set in one by die in
Constitute in outer die；Described interior die and outer die are colded pressing fit, and described outer die is combined with lower die-sleeve hot jacket, described
Pad coordinates with lower die-sleeve gap；One spiro connecting piece is screwed onto in lower formwork, and supports lower die-sleeve upwards, so that described lower die-sleeve
Cold pressing fit with lower formwork, described spiro connecting piece is provided with counterbore；The top of the spiro connecting piece is provided with ramp down angle, in the lower mould
On shell to should ramp down angle be provided with groove, between the groove and the ramp down angle formed adjust gap.
A kind of cold forging punch die for being molded the little component of rod category of major part as above, the upper surface of the lower die-sleeve is middle high
The low inclined-plane in both sides, the inclination angle on the inclined-plane is set to 1 ° -5 °.
A kind of cold forging punch die for being molded the little component of rod category of major part as above, the upper mould includes being set in benevolence set on
Upper cores in circle, the upper benevolence lasso is set in upper shuttering；It is up-narrow and down-wide that the upper cores and upper benevolence lasso form one
2 ° -7 ° of the inclination angle T range of frustum, the frustum upper cores and upper benevolence lasso.
A kind of cold forging punch die for being molded the little component of rod category of major part as above, the upper shuttering and lower formwork are integrated knot
The formwork of structure, between upper shuttering and lower formwork outage is provided with；The spiro connecting piece is provided with the lower oilhole communicated with counterbore, in
Lower formation between formwork and lower die-sleeve is provided with oil duct, and the oil duct connects upper oil hole and lower oilhole.
Above-mentioned technical proposal is beneficial in that：
The lower mould of the utility model cold forging punch die not only forms from inside to outside interior die, outer die, lower die-sleeve and lower formwork
Four-layer structure, and interior die and outer die, using fit of colding pressing, operation is simple, and interior die obtains the circumference of stable and uniform
Compressive pre-stress, improves lower mould intensity.Outer die is combined with lower die-sleeve using hot jacket, because being cold forging die, at a lower temperature
Mould connection is adapted to adopt hot cover process, hot jacket connection to transmit the load that axial compressive pre-stress and radial direction compressive pre-stress are acted on simultaneously
Lotus, improves the intensity of lower mould.Lower die-sleeve and lower formwork using fit of colding pressing, multilayer, compound combination knot on transversary
Structure mode is improve intensity and the life-span of punch die.The utility model is also by an adjustable spiro connecting piece being screwed onto in lower formwork
To support lower die-sleeve, lower die-sleeve is completed with the axial force for producing with lower formwork using fit of colding pressing, operation is simple, lower mould
Set obtains the circumferential compressive pre-stress of stable and uniform, improves unitary mould intensity.Under the utility model in the vertical structure of mould, also
Pad is provided between lower die and lower die-sleeve, the forging downward axial forging force that at present die is born must be by pad
Carry, pad only carries axial force, its with lower die-sleeve using gap cooperation, the fit of unitary mould of being also more convenient for tear open
Unload.
The utility model adopts the end face of the low lower die-sleeve in middle high both sides, and at present die bears downward axle to forging
To forging force, the die joint for making upper and lower mould forms minim gap, and the oil or gas in die cavity can be discharged from the gap of the die joint,
And adopt the end face of the low lower die-sleeve in middle high both sides the oil or gas can be connected into discharge, the life-span of mould can be improved.
Upper cores of the present utility model and upper benevolence lasso are up-narrow and down-wide frustum, and upper cores can bear during forging
The forging force of radial direction, must adopt frustum pressurization to make upper cores produce the compressive pre-stress of radial direction during fit, be greatly improved mould
The fit of the intensity of benevolence, upper cores of being also more convenient for and upper benevolence lasso and dismounting.
The utility model forms oil circuit in formwork and spiro connecting piece inner chamber, and by oil duct the oil that upper oil hole and lower oilhole are formed is connected
Road, can oil extraction or exhaust and can improve the life-span of mould.
Description of the drawings
Accompanying drawing described herein is used for providing further understanding to of the present utility model, constitutes of the present utility model one
Point, schematic description and description of the present utility model is used to explain the utility model, does not constitute to of the present utility model
Improper restriction.In the accompanying drawings：
Fig. 1 is the cross section structure diagram of the utility model cold forging punch die matched moulds state；
Fig. 2 is the cross section structure diagram of the utility model cold forging punch die formwork and spiro connecting piece decomposing state；
Fig. 3 is the cross section structure diagram of mould under the utility model；
Fig. 4 is the cross section structure diagram of the utility model upper cores.
Specific embodiment
In order that technical problem to be solved in the utility model, technical scheme and beneficial effect are clearer, clear, with
Under in conjunction with the accompanying drawings and embodiments, the utility model is further elaborated.It should be appreciated that concrete reality described herein
Example is applied only to explain the utility model, is not used to limit the utility model.
A kind of cold forging punch die of the little component of rod category of shaping major part as shown in Figure 1, 2, the cold forging punch die includes the He of upper mould 10
Lower mould 20.
Incorporated by reference to shown in Fig. 3, described lower mould 20 includes formwork 24, and is set in from top to bottom in lower die-sleeve 21
Lower die 22 and pad 23.Described lower die 22 is set in an outer die 222 by die 221 in and is constituted.It is, institute
The pad 23 stated is placed in the cavity of the lower die-sleeve 21 of the lower section of inside and outside die 221,222, and, the described gap of pad 23 coordinates
In lower die-sleeve 21.
Interior die 221 described in the utility model and outer die 222 are colded pressing fit, and operation is simple, and interior die is obtained
The circumferential compressive pre-stress of stable and uniform, improves lower mould intensity.
Outer die 222 described in the utility model is combined with the hot jacket of lower die-sleeve 21, because being cold forging die, at a lower temperature
Mould connection be adapted to adopt hot cover process, hot jacket connection can transmit axial compressive pre-stress and radial direction compressive pre-stress acts on simultaneously
Load, improves the intensity of lower benevolence.
The utility model also includes a spiro connecting piece 30, sets in the external screw thread of the spiro connecting piece 30 and the lower bottom cavity of formwork 24
Some internal threads are spirally connected, so that the spiro connecting piece 30 is screwed onto in lower formwork 24.The spiro connecting piece 30 is by supporting upwards lower die-sleeve 21
The axial force of generation, to complete the fit of colding pressing of lower die-sleeve 21 and lower formwork 24.The spiro connecting piece 30 is produced to lower die-sleeve 21
Axial force can be adjusted by the regulation gap 40 between lower formwork 24 and the spiro connecting piece 30.Specifically, the utility model spiral shell
The top of fitting 30 is provided with ramp down angle 31, on the lower formwork 24 to should ramp down angle 31 be provided with groove 241, described regulation
Gap 40 is formed between the groove 241 and the ramp down angle 31.Described spiro connecting piece 30 is provided with counterbore 32, and instrumental purpose is in this
Counterbore 32 just can adjust the axial force that the spiro connecting piece 30 supports upwards lower die-sleeve 21.
The utility model spiro connecting piece 30 is provided with the lower oilhole 42 communicated with the counterbore 32 of spiro connecting piece 30, and the lower oilhole 42 is
One inclined hole, forms oil duct 43 between lower die-sleeve 21 and lower formwork, the lower oilhole 42 of the connection of oil duct 43.
The upper surface 21A of lower die-sleeve described in the utility model 21 is the low inclined-plane in middle high both sides, inclination angle a be set to 1 °-
5°.Using the end face of the low lower die-sleeve 21 in middle high both sides, at present die 22 bears downward axial forging force to forging, makes
The die joint of upper and lower mould 10,20 forms minim gap, and the oil or gas in die cavity can be discharged from the gap of the die joint, and be adopted
The oil or gas can be connected and discharged by the end face of the low lower die-sleeve 21 in middle high both sides, can improve the life-span of mould.
Incorporated by reference to shown in Fig. 4, mould 10 includes the upper cores 11 being set in benevolence lasso 12 on the utility model, described
Upper benevolence lasso 12 is set in upper shuttering 13, and the described upper cores 11 and upper benevolence lasso 12 form a up-narrow and down-wide frustum
Shape.2 ° -7 ° of the inclination angle T range of frustum upper cores 11.Upper cores 11 can bear the forging force of radial direction during forging, during fit
Frustum pressurization must be adopted to make upper cores 11 produce the compressive pre-stress of radial direction, be greatly improved the intensity of upper cores, be also more convenient for
The fit of upper cores 11 and upper benevolence lasso 12 and dismounting.
As shown in Figure 1, 2, the utility model upper shuttering 13 and lower formwork 24 are integrated formwork structure.In upper shuttering 13 with
Outage 41 is provided between formwork 24, outage 41 is an inclined hole on this.Upper oil extraction on the described connection formwork of oil duct 43
Lower oilhole 42 on hole 41 and spiro connecting piece 30, to form oil circuit, connection is discharged using the low end face of lower die-sleeve 21 in middle high both sides
Oil or gas, the oil or gas are discharged outside unitary mould, the raising unitary mould life-span.
Described above illustrates and describes preferred embodiment of the present utility model, as previously mentioned, it should be understood that this practicality is new
Type is not limited to form disclosed herein, is not to be taken as the exclusion to other embodiment, and can be used for various other groups
Close, change and environment, and can be in utility model contemplated scope described herein, by above-mentioned teaching or the technology of association area
Or knowledge is modified.And change that those skilled in the art are carried out and change be without departing from spirit and scope of the present utility model, then
All should be in the protection domain of the utility model claims.
Claims (4)
1. a kind of cold forging punch die of the shaping little component of rod category of major part, the cold forging punch die includes upper die and lower die；It is characterized in that：Institute
The lower mould stated includes lower die and the pad being set in from top to bottom in lower die-sleeve；Wherein, described lower die is by die in
It is set in an outer die and constitutes；Described interior die and outer die are colded pressing fit, described outer die and lower die-sleeve hot jacket group
Close, described pad coordinates with lower die-sleeve gap；One spiro connecting piece is screwed onto in lower formwork, and supports lower die-sleeve upwards, so that institute
The lower die-sleeve stated and lower formwork are colded pressing fit, and described spiro connecting piece is provided with counterbore；The top of the spiro connecting piece is provided with ramp down angle,
On the lower formwork to should ramp down angle be provided with groove, between the groove and the ramp down angle formed adjust gap.
2. the cold forging punch die of the little component of rod category of a kind of shaping major part as claimed in claim 1, it is characterised in that：The lower die-sleeve
Upper surface be the low inclined-plane in middle high both sides, the inclination angle on the inclined-plane is set to 1 ° -5 °.
3. the cold forging punch die of the little component of rod category of a kind of shaping major part as claimed in claim 1 or 2, it is characterised in that：On described
Mould includes being set in the upper cores in benevolence lasso, and the upper benevolence lasso is set in upper shuttering；The upper cores and upper benevolence
Lasso forms 2 ° -7 ° of the inclination angle T range of a up-narrow and down-wide frustum, the frustum upper cores and upper benevolence lasso.
4. the cold forging punch die of the little component of rod category of a kind of shaping major part as claimed in claim 3, it is characterised in that：The upper shuttering
The formwork being structure as a whole with lower formwork, between upper shuttering and lower formwork outage is provided with；The spiro connecting piece is provided with and sinks
The lower oilhole that hole communicates, forms between lower formwork and lower die-sleeve and is provided with oil duct, and the oil duct connects upper oil hole and lower oilhole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620934244.1U CN206153478U (en) | 2016-08-25 | 2016-08-25 | Cold forging die of shaping major part rodlet class part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620934244.1U CN206153478U (en) | 2016-08-25 | 2016-08-25 | Cold forging die of shaping major part rodlet class part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206153478U true CN206153478U (en) | 2017-05-10 |
Family
ID=58649544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620934244.1U Withdrawn - After Issue CN206153478U (en) | 2016-08-25 | 2016-08-25 | Cold forging die of shaping major part rodlet class part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206153478U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106141060A (en) * | 2016-08-25 | 2016-11-23 | 厦门同恒金属有限公司 | A kind of cold forging punch die of the little component of rod category of molding major part |
| CN108296404A (en) * | 2017-12-29 | 2018-07-20 | 冷水江天宝实业有限公司 | A kind of high speed nut molding machine nut stroke mould and its lower mold core |
-
2016
- 2016-08-25 CN CN201620934244.1U patent/CN206153478U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106141060A (en) * | 2016-08-25 | 2016-11-23 | 厦门同恒金属有限公司 | A kind of cold forging punch die of the little component of rod category of molding major part |
| CN108296404A (en) * | 2017-12-29 | 2018-07-20 | 冷水江天宝实业有限公司 | A kind of high speed nut molding machine nut stroke mould and its lower mold core |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170510 Effective date of abandoning: 20180928 |