CN204018409U - A kind of combined type cold extrusion die - Google Patents
A kind of combined type cold extrusion die Download PDFInfo
- Publication number
- CN204018409U CN204018409U CN201420383109.3U CN201420383109U CN204018409U CN 204018409 U CN204018409 U CN 204018409U CN 201420383109 U CN201420383109 U CN 201420383109U CN 204018409 U CN204018409 U CN 204018409U
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Abstract
The utility model discloses a kind of combined type cold extrusion die, it establishes the die coat of cavity in comprising, be located at the mold core in the cavity of die coat, be located at the matrix in die coat upper shed, matrix is placed on mold core, mold core upper end has the first mating surface with the corresponding top interference fit of corresponding end-faces down on die coat and matrix, mold core is hollow cylinder, the two ends up and down of mold core have respectively planar upper of annular flat that structure is identical, lower surface, under mold core, be provided with for holding out against the die-cushion of mold core, die-cushion below is provided with the friction top that restriction die-cushion moves up and down, friction top is threaded in the under shed of die coat, mold core lower end has the second mating surface with the end face top interference fit upward of die-cushion.The combined type cold extrusion die that the utility model provides, has solved mold core short service life, the problem that processing cost is high.
Description
Technical field
The utility model relates to a kind of combined type cold extrusion die that makes formed product by cold extrusion mode.
Background technology
Along with domestic air mail, the high speed development in the fields such as space flight, cold extrusion processing mode is often applied to the relatively little and good product of material plasticity of specification.Traditional cold extrusion die is unitary mould, and in forming process, alloy core is broken or the scrappage that breaks is high, and cold extrusion die alloy core and die sleeve be interference fit, squeezes out alloy core difficulty during repairing die.
Application number is that 2011204771236 Chinese patent discloses a kind of hot upsetting mould, mainly comprise and be provided with cavity and there is the die coat of upper and lower opening and be arranged at the mold core in the cavity of die coat, mold core top is provided with matrix, mold core upper end has the upper mating surface with the corresponding top interference fit of locating surface down on die coat and matrix, mold core comprises core retainer plate and core, core retainer plate is tubular, core is located in core retainer plate, core retainer plate lower end is provided with conical boss, mold core below is provided with friction top, friction top Screw assembly is in die coat lower end, friction top has the conical through-hole with the conical boss adaptation of core retainer plate lower end.Adopt friction top fixed mould core, make, when break in mold core upper end, to pull down friction top, change mold core, when matrix breaks, change matrix, do not need to change a whole set of mould.
Summary of the invention
The purpose of this utility model is to provide a kind of combined type cold extrusion die, to solve the high problem of mold core cost of changing.
To achieve these goals, the utility model adopts following technical scheme:
A kind of combined type cold extrusion die, in comprising, establish cavity and there is the die coat of upper and lower opening, be located at the mold core in the cavity of die coat, be located at the matrix in die coat upper shed, matrix is placed on mold core, mold core upper end has the first mating surface with the corresponding top interference fit of corresponding end-faces down on die coat and matrix, described mold core is hollow cylinder, the two ends up and down of mold core have respectively planar upper of the identical annular flat of structure, lower surface, under described mold core, be provided with for upwards holding out against the die-cushion of mold core, described die-cushion below is provided with the friction top that restriction die-cushion moves up and down, described friction top is threaded in the under shed of die coat, mold core lower end has the second mating surface with the corresponding end-faces top interference fit upward of die-cushion, described mold core upper, lower surface directly or upper-lower position exchange and form described first, two mating surfaces.
Described mold core comprises core and core retainer plate, and described core retainer plate is tubular construction, and core is sheathed in core retainer plate.
Described die-cushion is provided with the material returned hole penetrating for material returned bar of up/down perforation, and described material returned hole is communicated with the endoporus of mold core.
Described die coat upper cavity wall is provided with the steam vent that is communicated with die coat cavity and atmosphere.
Combined type cold extrusion die of the present utility model, what adopt due to mold core is that upper and lower side plane is identical cylindrical structure, thereby has avoided mold core can not being changed continue after head as the irregular structure at the two ends up and down of the core retainer plate of prior art a shortcoming of using.When the plane fracture of mold core upper end, pull down friction top, by 180 ° of mold core upsets, the lower transverse plane of mold core can continue to use, and has extended the service life of mold core, thereby has reduced processing cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Schematic diagram when Fig. 2 is a kind of combined type cold extrusion die use of the utility model.
The specific embodiment
The embodiment of a kind of combined type cold extrusion die of the utility model, as shown in Figure 1-2: in this mould comprises, establish cavity and there is the die coat 1 of upper and lower opening, be located at the mold core in the cavity of die coat 1, be located at the matrix 2 in die coat 1 upper shed, be located at the die-cushion 5 of mold core below and the friction top 6 coordinating with die coat 1 lower cavity wall screw thread rotation.
Wherein die coat 1 top is provided with for compressing the tapered closing in cross section of matrix 2, die coat 1 upper portion side wall be provided be communicated with die coat 1 cavity and atmosphere for formed product time die cavity exhaust steam vent 9.Die coat 1 lower cavity wall is provided with the screw thread coordinating for friction top 6 rotations, and threaded upper end is provided with the annular technology groove 8 of being convenient to machining screw.
Mold core comprises core 4 and core retainer plate 3, core 4 is located in core retainer plate 3, mold core is hollow cylinder, mold core upper end planar annular is as the upper mating surface of the corresponding surface top interference fit down with die coat 1 and matrix 2, mold core below is provided with for upwards holding out against the die-cushion 5 of mold core, and mold core lower end planar annular is as the lower mating surface with die-cushion 5 top, upper end interference fits.The upper end diameter that matrix 2 has a up/down perforation is less than the bellmouth of lower end diameter, the circumferential surface of matrix 2 be with die coat 1 on the conical surface of the closing in wall top interference fit that arranges, the common cavity forming of bellmouth of the endoporus of core rod 4 and matrix 2 is configured for the outline that product pushes.
Die-cushion 5 has the material returned hole 52 of the up/down perforation penetrating for material returned bar 7, and material returned hole 52 is communicated with the endoporus on core rod 4, and die-cushion 5 bottoms are provided with boss 51, and boss 51 forms the annular stop face for friction top 6 top, upper end interference fits with die-cushion 5 junctions.The object that material returned hole is set is convenient by the detaching products processing by material returned bar.
Friction top 6 comprises the boss with die coat 1 cavity Screw assembly, turns up and be provided with and the spacing gear edge coordinating, die coat 1 lower end in boss lower end, the annular stop face top interference fit arranging on boss upper end and die-cushion 5.
Embodiment of the present utility model in use, material returned bar 7 is penetrated in the material returned hole 52 being arranged on die-cushion 5 through friction top 6, processed product 10 is put into core rod 4, with 11 pairs of products 10 of drift, apply power and make product 10 moulding, after machining, material returned bar 7 is upwards pushed away, product 10 is ejected.
In other embodiment of the present utility model, mold core can be also the hollow circular cylinder of integrative-structure, and is no longer divided into two body absolute construction of core retainer plate and core, and core retainer plate and core become one structure.
In other embodiments, liftout hole can be set, in the time of dismounting product, first unload friction top and die-cushion, then take out product.
In other embodiments, also steam vent can be set.
In other embodiments, the structure of mold core and matrix is not limited to the version of the utility model embodiment, according to the structural adjustment mold core of product to be processed and the shape of matrix.
Claims (4)
1. a combined type cold extrusion die, in comprising, establish cavity and there is the die coat of upper and lower opening, be located at the mold core in the cavity of die coat, be located at the matrix in die coat upper shed, matrix is placed on mold core, mold core upper end has the first mating surface with the corresponding top interference fit of corresponding end-faces down on die coat and matrix, it is characterized in that: described mold core is hollow cylinder, the two ends up and down of mold core have respectively planar upper of the identical annular flat of structure, lower surface, under described mold core, be provided with for upwards holding out against the die-cushion of mold core, described die-cushion below is provided with the friction top that restriction die-cushion moves up and down, described friction top is threaded in the under shed of die coat, mold core lower end has the second mating surface with the corresponding end-faces top interference fit upward of die-cushion, described mold core upper, lower surface directly or upper-lower position exchange and form described first, two mating surfaces.
2. a kind of combined type cold extrusion die according to claim 1, is characterized in that: described mold core comprises core and core retainer plate, and described core retainer plate is tubular construction, and core is sheathed in core retainer plate.
3. a kind of combined type cold extrusion die according to claim 1, is characterized in that: described die-cushion is provided with the material returned hole penetrating for material returned bar of up/down perforation, and described material returned hole is communicated with the endoporus of mold core.
4. according to a kind of combined type cold extrusion die described in any one in claim 1-3, it is characterized in that: described die coat upper cavity wall is provided with the steam vent that is communicated with die coat cavity and atmosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420383109.3U CN204018409U (en) | 2014-07-11 | 2014-07-11 | A kind of combined type cold extrusion die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420383109.3U CN204018409U (en) | 2014-07-11 | 2014-07-11 | A kind of combined type cold extrusion die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204018409U true CN204018409U (en) | 2014-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420383109.3U Expired - Fee Related CN204018409U (en) | 2014-07-11 | 2014-07-11 | A kind of combined type cold extrusion die |
Country Status (1)
| Country | Link |
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| CN (1) | CN204018409U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107052070A (en) * | 2017-04-26 | 2017-08-18 | 苏州罗普斯金铝业股份有限公司 | One kind assembles technique |
| CN108356153A (en) * | 2018-04-26 | 2018-08-03 | 博罗县何氏模具制造有限公司 | A kind of parent form structure of mold |
| CN112517776A (en) * | 2020-11-03 | 2021-03-19 | 哈尔滨哈飞航空工业有限责任公司 | Integrated equipment for heating and forming heat-shrinkable tube body |
| CN114054660A (en) * | 2021-11-15 | 2022-02-18 | 河南航天精工制造有限公司 | Combined die for cold heading cap rod piece |
-
2014
- 2014-07-11 CN CN201420383109.3U patent/CN204018409U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107052070A (en) * | 2017-04-26 | 2017-08-18 | 苏州罗普斯金铝业股份有限公司 | One kind assembles technique |
| CN108356153A (en) * | 2018-04-26 | 2018-08-03 | 博罗县何氏模具制造有限公司 | A kind of parent form structure of mold |
| CN112517776A (en) * | 2020-11-03 | 2021-03-19 | 哈尔滨哈飞航空工业有限责任公司 | Integrated equipment for heating and forming heat-shrinkable tube body |
| CN114054660A (en) * | 2021-11-15 | 2022-02-18 | 河南航天精工制造有限公司 | Combined die for cold heading cap rod piece |
| CN114054660B (en) * | 2021-11-15 | 2024-05-17 | 河南航天精工制造有限公司 | Combined die for cold heading capped rod piece |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141217 Termination date: 20160711 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |