CN204545294U - A kind of forging lower die structure with fluted disc hub - Google Patents
A kind of forging lower die structure with fluted disc hub Download PDFInfo
- Publication number
- CN204545294U CN204545294U CN201520222706.2U CN201520222706U CN204545294U CN 204545294 U CN204545294 U CN 204545294U CN 201520222706 U CN201520222706 U CN 201520222706U CN 204545294 U CN204545294 U CN 204545294U
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- installation cavity
- push rod
- gear
- gear ring
- mould
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Abstract
The utility model provides a kind of forging lower die structure with fluted disc hub, relate to forging mold technical field, it comprises lower mould body, push rod and ring gear, the push rod installation cavity being provided with gear ring installation cavity in lower mould body and communicating with above-mentioned gear ring installation cavity, gear ring installation cavity is positioned at the top of push rod installation cavity, ring gear is embedded in gear ring installation cavity by the mode of shrink fit, and push rod is located at also can upper and lower motion in push rod installation cavity in push rod installation cavity.The lower die structure that the utility model provides not only can ensure the dimensional accuracy to gear teeth moulding section in mould, significantly can also improve the production efficiency of mould, shorten the mould production cycle, reduce mould production cost, what is more important, after part wears shaping to the gear teeth in mould lost efficacy, only need to be changed out, and lower mould body also can continue to use, thus, this structure is adopted to further reduces later stage mold use cost.
Description
Technical field
The utility model relates to forging mold technical field, particularly a kind of forging lower die structure with fluted disc hub.
Background technology
Forging refers to first by METAL HEATING PROCESS, become liquid or softening state, again forging forming is carried out to the metal after heating, forging can be divided into blacksmithing and mould forging, complex-shaped and need to produce in enormous quantities for some, general adopts mould forging, and without blacksmithing, example band fluted disc hub as shown in Figure 1, the gear tooth portions of this band fluted disc hub cannot adopt blacksmithing, and mould must be adopted to forge.
For the forging mold of the above-mentioned type part, because the dimensional tolerance of product gear tooth portions is less, for ensureing the precision of this part, usually following two kinds of methods are processed in the industry: 1. carry out carving Milling Machining with machining center, due to the restriction by tool radius, also need after the milling of machining center carving completes manually to carry out the clear angle of craft to wedge angle position.Manual clear angle workload is comparatively large and high to the manual Capability Requirement of pincers worker, therefore, adopts the method production efficiency lower.2. adopt spark machined, spark machined, due to the impact by the factor such as discharge parameter, electrode erosion, needs multiple electrode just can complete the processing of the die cavity to gear tooth portions usually, simultaneously, electric spark erosion speed is comparatively slow, therefore the production cycle of mould is longer, and production cost is higher.
In addition, due to the structure that the forging counterdie adopting which kind of mode above-mentioned to process to obtain is monolithic devices, during actual use, position the most easily damaged inefficacy usually shaping to the gear teeth in mold cavity, just needed whole counterdie to scrap after losing efficacy in this position, therefore, above-mentioned mold use cost is also higher.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of forging lower die structure with fluted disc hub, adopt this structure can greatly the forging counterdie of shortened belt fluted disc hub production cycle, significantly improve its production efficiency, reduce its production cost and use cost.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme: a kind of forging lower die structure with fluted disc hub, comprise lower mould body, push rod and ring gear, the push rod installation cavity being provided with gear ring installation cavity in described lower mould body and communicating with described gear ring installation cavity, described gear ring installation cavity is positioned at the top of push rod installation cavity, described ring gear is embedded in gear ring installation cavity by the mode of shrink fit, and described push rod is located at also can upper and lower motion in push rod installation cavity in push rod installation cavity.
Wherein, described ring gear comprises gear ring body and the collar, and described gear ring body is embedded in the collar by the mode of shrink fit, and the hardness of the described collar is lower than the hardness of gear ring body, and on the outer peripheral face of the described collar, annular is arranged at intervals with the groove of multiple profile of tooth.
Preferably, described lower mould body comprises idiosome and bushing, described bushing hardness is greater than idiosome and is embedded in idiosome by the mode of shrink fit, described push rod installation cavity be located at bushing in, the bottom of described ring gear is against living bushing upper surface, described bushing lower surface is concordant with the bottom surface of idiosome, and described bushing external diameter is equal with the external diameter of the collar and its hardness is identical with gear ring body, and the hardness of described idiosome is higher than the collar.
The beneficial effect that the utility model obtains is: in the forging lower die structure of the band fluted disc hub provided at the utility model, the part (i.e. ring gear) that the gear teeth are shaping and lower mould body adopt Split type structure to arrange, thus, only need first to process ring gear with Linear cut, then the mode of shrink fit is adopted to be inlaid in lower mould body, because Linear cut precision is higher, process velocity is fast, cost is lower and do not need to carry out angle clearly to pointed part, therefore employing said structure not only can ensure the dimensional accuracy to gear teeth moulding section (ring gear) in mould, significantly can also improve the production efficiency of mould, shorten the mould production cycle, reduce mould production cost, what is more important, when after ring gear wear out failure, only need to be changed out, and lower mould body also can continue to use, thus, this structure is adopted to further reduces later stage mold use cost.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram with fluted disc hub in the utility model;
Fig. 2 is integral installation distribution structure schematic diagram of the present utility model;
Fig. 3 is the plan structure schematic diagram of ring gear in the utility model;
Fig. 4 is the vertical profile structural representation of idiosome in the utility model;
Fig. 5 is vertical profile structural representation bushing in the utility model;
Fig. 6 is the vertical profile structural representation of push rod in the utility model;
Fig. 7 is the bushing assembly structure schematic diagram with idiosome in the utility model;
Reference numeral is:
1---lower mould body 2---push rod 3---ring gear 12---safty shield 4---gear ring installation cavity 5---push rod installation cavity 11---idiosome 12---bushing 31---gear ring body 32---collar 321---grooves.
Detailed description of the invention
For the ease of the understanding of those skilled in the art, be further described the utility model below in conjunction with embodiment and accompanying drawing, the content that embodiment is mentioned is not to restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", " outward ", " clockwise ", orientation or the position relationship of the instruction such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.In describing the invention, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
As illustrated in figs. 2-7, a kind of forging lower die structure with fluted disc hub, comprise lower mould body 1, push rod 2 and ring gear 3, the push rod installation cavity 5 being provided with gear ring installation cavity 4 in lower mould body 1 and communicating with gear ring installation cavity 4, gear ring installation cavity 4 is positioned at the top of push rod installation cavity 5, ring gear 3 is embedded in gear ring installation cavity 4 by the mode of shrink fit, and push rod 2 is located at also can upper and lower motion in push rod installation cavity 5 in push rod installation cavity 5.
In the forging lower die structure of the band fluted disc hub provided at the present embodiment, the part (i.e. ring gear 3) that the gear teeth are shaping and lower mould body 1 adopt Split type structure to arrange, thus, only need first to process ring gear 3 with Linear cut, then the mode of shrink fit is adopted to be inlaid in lower mould body 1, because Linear cut precision is higher, process velocity is fast, cost is lower and do not need to carry out angle clearly to pointed part, therefore employing said structure not only can ensure the dimensional accuracy to gear teeth moulding section (ring gear 3) in mould, significantly can also improve the production efficiency of mould, shorten the mould production cycle, reduce mould production cost, what is more important, when after ring gear 3 wear out failure, only need to be changed out, and lower mould body 1 also can continue to use, thus, this structure is adopted to also reduce later stage mold use cost.
Wherein, ring gear 3 comprises gear ring body 31 and the collar 32, gear ring body 31 is embedded in the collar 32 by the mode of shrink fit, and the hardness of the collar 32 is lower than the hardness of gear ring body 31, and on the outer peripheral face of the collar 32, annular is arranged at intervals with the groove 321 of multiple profile of tooth.
Because ring gear 3 and lower mould body 1 adopt the assembling mode of shrink fit, return back in the process of normal temperature in the temperature of lower mould body 1, lower mould body 1 can shrink, in contraction process, lower mould body 1 can produce radial pressure to ring gear 3, by adopting gear ring body to add the structure of the collar ring gear 3, and the hardness of the collar 32 is lower than the hardness of gear ring body 31, also on the outer peripheral face of the collar 32, annular space arranges the groove 321 of multiple profile of tooth simultaneously, when ring gear 3 is subject to the radial pressure from lower mould body 1, distortion will mainly concentrate on the collar 32, thus avoid the situation that gear ring body 31 is extruded distortion, further ensure the dimensional accuracy to gear teeth moulding section (i.e. gear ring body 31) in mould.
Preferably, lower mould body 1 comprises idiosome 11 and bushing 12, the hardness of bushing 12 is greater than idiosome 11 and is embedded in idiosome 11 by the mode of shrink fit, push rod installation cavity 5 is located in bushing 12, the bottom of ring gear 3 is against the upper surface living bushing 12, the lower surface of bushing 12 is concordant with the bottom surface of idiosome 11, and the external diameter of bushing 12 is equal with the external diameter of the collar 32 and its hardness is identical with gear ring body 31, and the hardness of idiosome 11 is higher than the collar 32.
From Fig. 1 and Fig. 2, gear ring body 31 only carries out shaping to the gear tooth portions of band fluted disc hub, the annular boss of gear teeth side is shaping by lower mould body 1, by lower mould body 1 being arranged to the structure of idiosome 11 and bushing 12 combinations, thus the shaping of annular boss part is completed by bushing 12, only need to be replaced when there is the situation of bushing wear out failure, and do not need whole lower mould body 1 to scrap, thus reduce further the use cost in mould later stage.In addition, bushing 12 hot pressing are fitted into after in idiosome 11, return back in the process of room temperature in idiosome 11 surface temperature, bushing 12 can be subject to the radial pressure from idiosome 11, hardness due to bushing 12 higher than the hardness of idiosome 11, the ability of anti-deformation of bushing 12 higher than the ability of anti-deformation of idiosome 11, therefore, its final deformation quantity is less, further ensures the dimensional accuracy of mould molding part.
Above-described embodiment is the utility model preferably implementation, and in addition, the utility model can also realize by alternate manner, and under the prerequisite not departing from the technical program design, any apparent replacement is all within protection domain of the present utility model.
The improvements of the utility model relative to prior art are understood more easily in order to allow those of ordinary skill in the art, accompanying drawings more of the present utility model and description are simplified, and for the sake of clarity, present specification is omitted some other elements, and those of ordinary skill in the art it is to be appreciated that these abridged elements also can form content of the present utility model.
Claims (3)
1. the forging lower die structure with fluted disc hub, it is characterized in that: comprise lower mould body (1), push rod (2) and ring gear (3), the push rod installation cavity (5) being provided with gear ring installation cavity (4) in described lower mould body (1) and communicating with described gear ring installation cavity (4), described gear ring installation cavity (4) is positioned at the top of push rod installation cavity (5), described ring gear (3) is embedded in gear ring installation cavity (4) by the mode of shrink fit, and described push rod (2) is located at also can upper and lower motion in push rod installation cavity (5) in push rod installation cavity (5).
2. the forging lower die structure of band fluted disc hub according to claim 1, it is characterized in that: described ring gear (3) comprises gear ring body (31) and the collar (32), described gear ring body (31) is embedded in the collar (32) by the mode of shrink fit, the hardness of the described collar (32) is lower than the hardness of gear ring body (31), and on the outer peripheral face of the described collar (32), annular is arranged at intervals with the groove (321) of multiple profile of tooth.
3. the forging lower die structure of band fluted disc hub according to claim 2, it is characterized in that: described lower mould body (1) comprises idiosome (11) and bushing (12), the hardness of described bushing (12) is greater than idiosome (11) and is embedded in idiosome (11) by the mode of shrink fit, described push rod installation cavity (5) is located in bushing (12), the bottom of described ring gear (3) is against the upper surface of firmly bushing (12), the lower surface of described bushing (12) is concordant with the bottom surface of idiosome (11), the external diameter of described bushing (12) is equal with the external diameter of the collar (32) and its hardness is identical with gear ring body (31), the hardness of described idiosome (11) is higher than the collar (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520222706.2U CN204545294U (en) | 2015-04-14 | 2015-04-14 | A kind of forging lower die structure with fluted disc hub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520222706.2U CN204545294U (en) | 2015-04-14 | 2015-04-14 | A kind of forging lower die structure with fluted disc hub |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204545294U true CN204545294U (en) | 2015-08-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520222706.2U Expired - Fee Related CN204545294U (en) | 2015-04-14 | 2015-04-14 | A kind of forging lower die structure with fluted disc hub |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204545294U (en) |
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2015
- 2015-04-14 CN CN201520222706.2U patent/CN204545294U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Take forging lower mould of fluted disc hub structure Effective date of registration: 20161226 Granted publication date: 20150812 Pledgee: Hengyang Huarong Xiangjiang bank Limited by Share Ltd steamed South Branch Pledgor: Hengyang Pengrun Forging Co., Ltd. Registration number: 2016430000066 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20171102 Granted publication date: 20150812 Pledgee: Hengyang Huarong Xiangjiang bank Limited by Share Ltd steamed South Branch Pledgor: Hengyang Pengrun Forging Co., Ltd. Registration number: 2016430000066 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Take forging lower mould of fluted disc hub structure Effective date of registration: 20171117 Granted publication date: 20150812 Pledgee: Shanghai Pudong hair bank Limited by Share Ltd Hengyang branch Pledgor: Hengyang Pengrun Forging Co., Ltd. Registration number: 2017430000087 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150812 Termination date: 20190414 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20200608 Granted publication date: 20150812 Pledgee: Shanghai Pudong hair bank Limited by Share Ltd. Hengyang branch Pledgor: HENGYANG PENGRUN FORGING Co.,Ltd. Registration number: 2017430000087 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |