CN202239438U - Combined structure for mould used for forging pawl gear forged blank - Google Patents
Combined structure for mould used for forging pawl gear forged blank Download PDFInfo
- Publication number
- CN202239438U CN202239438U CN2011203718311U CN201120371831U CN202239438U CN 202239438 U CN202239438 U CN 202239438U CN 2011203718311 U CN2011203718311 U CN 2011203718311U CN 201120371831 U CN201120371831 U CN 201120371831U CN 202239438 U CN202239438 U CN 202239438U
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- mould core
- core
- inner mould
- mould
- core rod
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Abstract
The utility model provides a combined structure for a mould used for forging a pawl gear forged blank, which comprises a lower mould plate and a mould sleeve, wherein a combined mould core is fixed in the mould sleeve; the combined mould core comprises an outer mould core with a circular through hole and an inner mould core tightly sleeved in the outer mould core; the bottom of the inner mould core is leveled with the bottom of the outer mould core; the top of the inner mould core is located in the circular through hole of the outer mould core; a cavity of a combined mould core is formed by the top of the inner mould core and the upper part of the circular through hole of the outer mould core; and a shaping hole which is used for forming a gear pawl is formed at the top of the inner mould core. The combined mould core is fixed in the mould sleeve of the combined structure and comprises the outer mould core with the circular through hole and the inner mould core tightly sleeved in the outer mould core, so that the stress concentration point is avoided and no cracking exists. After the inner mould core is abraded, only the inner mould core is replaced and the outer mould core can be reused, so that the service life of the mould is increased and the production cost is saved.
Description
Technical field
The utility model relates to the die assembly structure of forging gear, relates in particular to the die assembly structure that is used to forge the dog Gear Forging Stock.
Background technology
The forging stock of motorcycle dog gear engage a gear gear forges through mould usually; Existing die assembly structure comprises lower mold core, lower bolster, lower platen, die sleeve and is fixed on the cylindrical shape die shoe of lower bolster upper surface; Lower bolster, guide cylinder are installed in the cylindrical shape die shoe from the bottom to top successively, and lower platen and die sleeve are fixed on the upper surface of guide cylinder with lower mold core, and existing lower mold core is a whole mechanism; Because it is more concentrated in the stress ratio of die cavity corner; Cause the whole cracking of lower mold core to be scrapped, reduced the service life of lower mold core, improved production cost.
The utility model content
The technical problem that the utility model solves is: a kind of die assembly structure that is used to forge the dog Gear Forging Stock that can improve intensity is provided.
The technical scheme of the utility model is: a kind of die assembly structure that is used to forge the dog Gear Forging Stock; Comprise lower bolster, die sleeve and be fixed on the cylindrical shape die shoe of lower bolster upper surface; Lower bolster and guide cylinder are installed in the said cylindrical shape die shoe from the bottom to top successively; It is characterized in that, be fixed with combination mold core in the said die sleeve, said combination mold core comprises the outer core rod with manhole and closely is enclosed within the inner mould core in the outer core rod; The bottom surface of said inner mould core is concordant with the bottom surface of said outer core rod; The end face of inner mould core drops in the manhole of outer core rod, the end face of inner mould core and the common die cavity that constitutes said combination mold core in the top of outer core rod manhole, and the end face of inner mould core is provided with the type hole that is used to form the gear dog.
The bottom of said outer core rod manhole is provided with spacing seam, and the bottom of said inner mould core is provided with the positive stop lug boss that matches with said spacing seam.
It is conical that the outer wall of said outer core rod is.
The middle part of said inner mould core is provided with and is used for the perforation that push rod inserts.
The beneficial effect of the utility model is: be fixed with combination mold core in the die sleeve of the utility model, combination mold core comprises the outer core rod with manhole and closely is enclosed within the inner mould core in the outer core rod, has changed integral mould core structure of the prior art; Combination mold core has been avoided stress concentration point in the gear forging process, can not ftracture; And because wearing and tearing usually occur in the bottom of die cavity; Therefore inner mould core is only changed inner mould core after wearing and tearing, and outer core rod can be reused; Improve the bulk life time of mould, practiced thrift production cost.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the structural representation of the outer core rod of this use in novel;
Fig. 3 is the inner mould core structural representation in the utility model.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further:
Referring to Fig. 1～Fig. 3, a kind of die assembly structure that is used to forge the dog Gear Forging Stock comprises lower bolster 1, die sleeve 2, lower platen 3, angled slide block 4, little push rod 5, main push rod 6 and through being bolted to the cylindrical shape die shoe 7 of lower bolster 1 upper surface.The upper surface of lower bolster 1 is provided with a circular groove; Be provided with one in this circular groove and be used for the perforation that main push rod 6 passes through; Cylindrical shape lower bolster 8 and guide cylinder 9 are installed in the cylindrical shape die shoe 7 from the bottom to top successively, and the bottom of tubular lower bolster 8 is dropped in the circular groove of lower bolster 1.Angled slide block 4 is positioned at the upper surface of cylindrical shape lower bolster 8, and guide cylinder 9 is arranged in the upper surface of tubular lower bolster 8 and angled slide block 4 is enclosed within the inner chamber of guide cylinder 9.Be fixed with combination mold core in the die sleeve 2; Combination mold core comprises the outer core rod 10 with manhole and closely is enclosed within the inner mould core 11 in the outer core rod 10; The bottom surface of inner mould core 11 is concordant with the bottom surface of outer core rod 10; The end face of inner mould core 11 drops among the manhole 10a of outer core rod 10, and the top of the end face of inner mould core 11 and outer core rod 10 manhole 10a constitutes the die cavity 13 of combination mold core jointly, and the end face of inner mould core 11 is provided with the type hole 13 ' that is used to form the gear dog.The bottom of outer core rod 10 manholes is provided with spacing seam 10 ', and the bottom of inner mould core 11 is provided with the positive stop lug boss 11 ' that matches with spacing seam 11 '.It is conical that the outer wall of outer core rod 10 is.The spacing seam 10 ' of outer core rod 10 is pushed down the positive stop lug boss 11 ' of inner mould core 11, and die sleeve 2 is pushed down the conical outer wall of outer core rod 10 through the annulus inner conical surface, and the annular steps of lower platen 3 is pushed down die sleeve 2, and lower platen 3 and die shoe 7 are fixed through screw.The middle part of inner mould core 11 is provided with and is used for the perforation 11a that little push rod 5 inserts, and is inserted with little push rod 5 among the perforation 11a.
Claims (4)
1. die assembly structure that is used to forge the dog Gear Forging Stock; Comprise lower bolster, die sleeve and be fixed on the cylindrical shape die shoe of lower bolster upper surface; Lower bolster and guide cylinder are installed in the said cylindrical shape die shoe from the bottom to top successively; It is characterized in that: be fixed with combination mold core in the said die sleeve; Said combination mold core comprises the outer core rod with manhole and closely is enclosed within the inner mould core in the outer core rod, and the bottom surface of said inner mould core is concordant with the bottom surface of said outer core rod, and the end face of inner mould core drops in the manhole of outer core rod; The end face of inner mould core and the common die cavity that constitutes said combination mold core in the top of outer core rod manhole, the end face of inner mould core is provided with the type hole that is used to form the gear dog.
2. according to the described die assembly structure that is used to forge the dog Gear Forging Stock of claim 1, it is characterized in that: the bottom of said outer core rod manhole is provided with spacing seam, and the bottom of said inner mould core is provided with the positive stop lug boss that matches with said spacing seam.
3. according to the described die assembly structure that is used to forge the dog Gear Forging Stock of claim 1, it is characterized in that: the outer wall of said outer core rod is conical.
4. according to the described die assembly structure that is used to forge the dog Gear Forging Stock of claim 1, it is characterized in that: the middle part of said inner mould core is provided with and is used for the perforation that push rod inserts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203718311U CN202239438U (en) | 2011-09-28 | 2011-09-28 | Combined structure for mould used for forging pawl gear forged blank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203718311U CN202239438U (en) | 2011-09-28 | 2011-09-28 | Combined structure for mould used for forging pawl gear forged blank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202239438U true CN202239438U (en) | 2012-05-30 |
Family
ID=46100740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203718311U Expired - Lifetime CN202239438U (en) | 2011-09-28 | 2011-09-28 | Combined structure for mould used for forging pawl gear forged blank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202239438U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102699213A (en) * | 2012-06-21 | 2012-10-03 | 宁波市鄞州剑均机械科技有限公司 | Hot stamping mold of copper piece |
| CN102716989A (en) * | 2012-06-21 | 2012-10-10 | 宁波市鄞州剑均机械科技有限公司 | Copper element hot stamping mold |
| CN102806297A (en) * | 2012-08-22 | 2012-12-05 | 太仓久信精密模具有限公司 | Novel hard alloy cold forging die for combined gear ring |
| CN104942204A (en) * | 2015-07-09 | 2015-09-30 | 天津天海精密锻造有限公司 | Ring-rolling blank making combined mold for automobile transmission gear |
| CN107695122A (en) * | 2017-06-01 | 2018-02-16 | 浙江精力轴承科技有限公司 | Long-life asymmetric shaft bearing ring cold-extrusion shaping mould |
| CN109014003A (en) * | 2018-09-27 | 2018-12-18 | 舟山市7412工厂 | A kind of production method of cold upsetting die of car |
| CN109351904A (en) * | 2018-10-17 | 2019-02-19 | 江麓机电集团有限公司 | A kind of versatility combined type die forging tooling |
| CN111408629A (en) * | 2020-04-15 | 2020-07-14 | 河南航天精工制造有限公司 | Half module and mould |
-
2011
- 2011-09-28 CN CN2011203718311U patent/CN202239438U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102699213A (en) * | 2012-06-21 | 2012-10-03 | 宁波市鄞州剑均机械科技有限公司 | Hot stamping mold of copper piece |
| CN102716989A (en) * | 2012-06-21 | 2012-10-10 | 宁波市鄞州剑均机械科技有限公司 | Copper element hot stamping mold |
| CN102806297A (en) * | 2012-08-22 | 2012-12-05 | 太仓久信精密模具有限公司 | Novel hard alloy cold forging die for combined gear ring |
| CN104942204A (en) * | 2015-07-09 | 2015-09-30 | 天津天海精密锻造有限公司 | Ring-rolling blank making combined mold for automobile transmission gear |
| CN107695122A (en) * | 2017-06-01 | 2018-02-16 | 浙江精力轴承科技有限公司 | Long-life asymmetric shaft bearing ring cold-extrusion shaping mould |
| CN109014003A (en) * | 2018-09-27 | 2018-12-18 | 舟山市7412工厂 | A kind of production method of cold upsetting die of car |
| CN109351904A (en) * | 2018-10-17 | 2019-02-19 | 江麓机电集团有限公司 | A kind of versatility combined type die forging tooling |
| CN111408629A (en) * | 2020-04-15 | 2020-07-14 | 河南航天精工制造有限公司 | Half module and mould |
| CN111408629B (en) * | 2020-04-15 | 2021-12-14 | 河南航天精工制造有限公司 | Half module and mould |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |