CN203592057U - Cold stamping forming die for spiral bevel gear - Google Patents
Cold stamping forming die for spiral bevel gear Download PDFInfo
- Publication number
- CN203592057U CN203592057U CN201320680646.XU CN201320680646U CN203592057U CN 203592057 U CN203592057 U CN 203592057U CN 201320680646 U CN201320680646 U CN 201320680646U CN 203592057 U CN203592057 U CN 203592057U
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- bevel gear
- spiral bevel
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- die
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Abstract
The utility model belongs to the technical field of cold stamping forming dies, and relates to a cold stamping forming die for a spiral bevel gear. A guide pillar or a guide sleeve is arranged on the outer side of an upper die plate, a guide sleeve or a guide pillar is arranged on a lower die plate, and is used in cooperation with the guide pillar or the guide sleeve on the upper die plate to carry out positioning, a stamping block through hole is formed in the middle of an upper die core arranged on the upper die plate, a lower stamping block and an upper stamping block are arranged in the stamping block through hole, a spring positioning rod of the lower stamping block is sleeved with a spring, a gap is formed between the upper end face of the spring and the lower surface of the upper stamping block, a rotary die core is arranged on the upper portion of the lower die plate, a nitrogen cylinder is arranged between the lower die plate and the rotary die core, a die release ejector rod hole and a die release ejector rod arranged in the die release ejector rod hole are arranged in the middle of the rotary die core, and the axis of a spiral bevel gear forming die cavity coincides with the axis of the lower stamping block on the upper die plate. The cold stamping forming die for the spiral bevel gear has the advantages that die release is easy, the yield is high, and the cold stamping forming die is applicable to production of the spiral bevel gears of various specifications and various models.
Description
Technical field
The utility model belongs to cold stamping forming die technical field, refers in particular to a kind of spiral bevel gear cold stamping forming die.
Background technology
Spiral bevel gear be a kind of can high speed, high pulling torque, low noise at the machine driving class part of not parallel between centers transmission campaign and power.Current spiral bevel gear is all cylindrical screw gear, adopt the stamping forming method of upper and lower mould to carry out machine-shaping, the weak point existing in this moulding process is: the one, because easily cause the just negative unbalance stress of helical tooth, easily cause the damage of mould, die life is short, and the pressure loss is serious; The 2nd, demoulding difficulty, because after spiral bevel gear wheel shaping, its helical tooth is equivalent to screw in die cavity, firmly extracts the destruction that can cause spiral bevel gear and mould.
The performances such as therefore, traditional upper and lower mould rushes forming method and cannot process qualified trochoid spiral angular wheel at present, even if produce reluctantly product, it overloads, acceleration, durable are also very poor, do not reach application target; So, how to produce qualified spiral bevel gear, make the just negative stressed even of helical tooth, the long service life of mould, oneself becomes the task of top priority in spiral bevel gear mould field.
Summary of the invention
The product that the purpose of this utility model is to provide a kind of easy demoulding, mold meets the spiral bevel gear cold stamping forming die of standard-required.
The purpose of this utility model is achieved in that
Spiral bevel gear cold stamping forming die, include cope match-plate pattern and lower bolster, the arranged outside of cope match-plate pattern has two above lead or fairleads that vertically arrange, be provided with on the lower bolster of lead on cope match-plate pattern or fairlead corresponding position the fairlead or the lead that coordinate location with described lead or fairlead, the middle part of the upper mold core that the bottom of cope match-plate pattern arranges is vertically provided with and rushes piece through hole, rush and in piece through hole, be disposed with from the bottom to top undershoot piece and the upper punch piece with spring backstay, on the spring backstay of undershoot piece, be set with spring, between the lower surface of the upper surface of spring and upper punch piece, be provided with gap, the top of lower bolster is provided with rotation core rod, between lower bolster and rotation core rod, be provided with nitrogen cylinder, the middle part of rotation core rod is provided with the demoulding jogger hole of spiral bevel gear shaping membrane chamber and the bottom on top, in demoulding jogger hole, be provided with demoulding push rod, the upper surface of demoulding push rod is part or all that go to the bottom in spiral bevel gear shaping membrane chamber, the dead in line of the undershoot piece on axis and the cope match-plate pattern in spiral bevel gear shaping membrane chamber.
The concrete structure of above-mentioned rotation core rod is: the arranged outside in module has sheath, the top of sheath is provided with the lock nut being set on sheath, between module and sheath, be provided with the bearing that can make the axis of module winding mold piece rotate, described spiral bevel gear shaping membrane chamber and demoulding jogger hole are arranged on the middle part of module.
On above-mentioned lower bolster, be provided with through hole, the through hole on demoulding jogger hole and lower bolster connects.
On through hole on above-mentioned lower bolster, be provided with and the push rod of demoulding push rod apical grafting, described push rod stretches out downwards outside lower bolster.
Between above-mentioned demoulding push rod and push rod, be provided with jacking block.
The undershoot piece downside of above-mentioned cope match-plate pattern is provided with workpiece installation position.
The concrete structure of above-mentioned upper mold core is: the arranged outside in module has sheath, the bottom of sheath is provided with the lock nut being set on sheath, the described middle part that rushes piece through hole and be vertically set on module, rush and in piece through hole, be provided with undershoot piece and upper punch piece, on undershoot piece, be set with spring, between the upper surface of spring and the lower surface of upper punch piece, be provided with gap.
The utility model compared to existing technology outstanding and useful technique effect is:
1, the utility model adopts rotation core rod, and when the demoulding, spiral bevel gear is in the time upwards ejecting, due to the clamping action of upper mold core, cold stamping shaped go out spiral bevel gear to be equivalent to equipment base motionless, and rotation core rod rotates, and has solved the release problems after spiral bevel gear is cold stamping shaped.
2, the nitrogen cylinder of the utility model counterdie and the spring of patrix form the double-damping structure of mould, and forming process is stable, and the spring in patrix can make workpiece deviate from smoothly from patrix.
3, structural design of the present utility model qualification rate ingenious, the product produced is high, is applicable to the spiral bevel gear of production plurality of specifications model.
Accompanying drawing explanation
Fig. 1 is cross-sectional schematic of the present utility model.
Fig. 2 is one of spiral bevel gear of molding of the utility model.
The specific embodiment
The utility model is further described with specific embodiment below in conjunction with accompanying drawing, referring to Fig. 1-2:
Spiral bevel gear cold stamping forming die, include cope match-plate pattern 11 and lower bolster 21, the arranged outside of cope match-plate pattern 11 has two above lead or fairleads 12 that vertically arrange, be provided with on the lower bolster 21 of lead on cope match-plate pattern 11 or fairlead 12 corresponding positions the fairlead or the lead 22 that coordinate location with described lead or fairlead 12, the middle part of the upper mold core 13 that the bottom of cope match-plate pattern 11 arranges is vertically provided with and rushes piece through hole 137, rush and in piece through hole 137, be disposed with from the bottom to top undershoot piece 134 and the upper punch piece 14 with spring backstay, on the spring backstay of undershoot piece 134, be set with spring 135, between the lower surface of the upper surface of spring 135 and upper punch piece 14, be provided with gap, the top of lower bolster 21 is provided with rotation core rod 23, between lower bolster 21 and rotation core rod 23, be provided with nitrogen cylinder 24, the middle part of rotation core rod 23 is provided with the spiral bevel gear shaping membrane chamber 235 on top and the demoulding jogger hole 233 of bottom, in demoulding jogger hole 233, be provided with demoulding push rod 237, the upper surface of demoulding push rod 237 is part or all that go to the bottom in spiral bevel gear shaping membrane chamber 235, the dead in line of the undershoot piece 134 on axis and the cope match-plate pattern 11 in spiral bevel gear shaping membrane chamber 235.
The concrete structure of above-mentioned rotation core rod 23 is: have sheath 231 in the arranged outside of module 232, the top of sheath 231 is provided with the lock nut 234 being set on sheath 231, between module 232 and sheath 231, be provided with the bearing 236 that can make the axis of module winding mold piece 232 rotate, described spiral bevel gear shaping membrane chamber 235 and demoulding jogger hole 233 are arranged on the middle part of module 232.
On above-mentioned lower bolster 21, be provided with through hole, demoulding jogger hole 233 connects with the through hole on lower bolster 21.
On through hole on above-mentioned lower bolster 21, be provided with and the push rod 25 of demoulding push rod 237 apical graftings, described push rod 25 stretches out downwards outside lower bolster 21.
Between above-mentioned demoulding push rod 237 and push rod 25, be provided with jacking block 26.
The undershoot piece downside of above-mentioned cope match-plate pattern 11 is provided with workpiece installation position 136, for workpiece 4 is installed.
The concrete structure of above-mentioned upper mold core 13 is: have sheath 132 in the arranged outside of module 131, the bottom of sheath 132 is provided with the lock nut 233 being set on sheath 132, the described middle part that rushes piece through hole 137 and be vertically set on module 131, rush and in piece through hole 137, be provided with undershoot piece 134 and upper punch piece 14, on undershoot piece 134, be set with spring 135, between the upper surface of spring 135 and the lower surface of upper punch piece 14, be provided with gap.
Utilize the course of work of the utility model cold-punching molding spiral bevel gear:
1, punching product: the utility model is arranged on the stamping machine with lifting cope match-plate pattern and upper mold core, workpiece 4 is arranged on the workpiece installation position 136 of cope match-plate pattern 11, upper/lower die matched moulds, the bottom of workpiece 4 is stretched in the spiral bevel gear shaping membrane chamber 235 of rotation core rod 23, stamping machine pressurization, the distortion that is stamped of the bottom of workpiece 4, forms and has spiral bevel gear shaping membrane chamber 235 shapes with the spiral bevel gear 3 of installation shaft 31 and spiral bevel gear 32;
2, die sinking: after punching end-of-job, handling stamping machine rises the product spiral bevel gear 3 of cope match-plate pattern, upper mold core, push rod 25 and punching one-tenth, 23 reversions of rotation core rod depart from spiral bevel gear 3, under the effect of spring 135, undershoot piece 134 is released spiral bevel gear 3 downwards simultaneously, makes spiral bevel gear 3 depart from the workpiece installation position 136 of upper mold core 13.
If the spiral bevel gear of punching does not need installation shaft, workpiece 4 is obtained shortlyer, reduce the distance of workpiece installation position 136, even undershoot piece 134 is extended downward to the lower surface of upper mold core 13 below.
Above-described embodiment is only preferred embodiment of the present utility model, not limits according to this protection domain of the present utility model, therefore: all equivalences of doing according to structure of the present utility model, shape, principle change, within all should being covered by protection domain of the present utility model.
Claims (7)
1. spiral bevel gear cold stamping forming die, include cope match-plate pattern and lower bolster, it is characterized in that: the arranged outside of cope match-plate pattern has two above lead or fairleads that vertically arrange, be provided with on the lower bolster of lead on cope match-plate pattern or fairlead corresponding position the fairlead or the lead that coordinate location with described lead or fairlead, the middle part of the upper mold core that the bottom of cope match-plate pattern arranges is vertically provided with and rushes piece through hole, rush and in piece through hole, be disposed with from the bottom to top undershoot piece and the upper punch piece with spring backstay, on the spring backstay of undershoot piece, be set with spring, between the lower surface of the upper surface of spring and upper punch piece, be provided with gap, the top of lower bolster is provided with rotation core rod, between lower bolster and rotation core rod, be provided with nitrogen cylinder, the middle part of rotation core rod is provided with the demoulding jogger hole of spiral bevel gear shaping membrane chamber and the bottom on top, in demoulding jogger hole, be provided with demoulding push rod, the upper surface of demoulding push rod is part or all that go to the bottom in spiral bevel gear shaping membrane chamber, the dead in line of the undershoot piece on axis and the cope match-plate pattern in spiral bevel gear shaping membrane chamber.
2. spiral bevel gear cold stamping forming die according to claim 1, it is characterized in that: the concrete structure of described rotation core rod is: the arranged outside in module has sheath, the top of sheath is provided with the lock nut being set on sheath, between module and sheath, be provided with the bearing that can make the axis of module winding mold piece rotate, described spiral bevel gear shaping membrane chamber and demoulding jogger hole are arranged on the middle part of module.
3. spiral bevel gear cold stamping forming die according to claim 1, is characterized in that: on described lower bolster, be provided with through hole, the through hole on demoulding jogger hole and lower bolster connects.
4. spiral bevel gear cold stamping forming die according to claim 3, is characterized in that: on the through hole on described lower bolster, be provided with and the push rod of demoulding push rod apical grafting, described push rod stretches out downwards outside lower bolster.
5. spiral bevel gear cold stamping forming die according to claim 4, is characterized in that: between described demoulding push rod and push rod, be provided with jacking block.
6. spiral bevel gear cold stamping forming die according to claim 1, is characterized in that: the undershoot piece downside of described cope match-plate pattern is provided with workpiece installation position.
7. according to the spiral bevel gear cold stamping forming die described in claim 1-6 any one, it is characterized in that: the concrete structure of described upper mold core is: the arranged outside in module has sheath, the bottom of sheath is provided with the lock nut being set on sheath, the described middle part that rushes piece through hole and be vertically set on module, rush and in piece through hole, be provided with undershoot piece and upper punch piece, on undershoot piece, be set with spring, between the upper surface of spring and the lower surface of upper punch piece, be provided with gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320680646.XU CN203592057U (en) | 2013-10-26 | 2013-10-26 | Cold stamping forming die for spiral bevel gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320680646.XU CN203592057U (en) | 2013-10-26 | 2013-10-26 | Cold stamping forming die for spiral bevel gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203592057U true CN203592057U (en) | 2014-05-14 |
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ID=50673005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320680646.XU Expired - Fee Related CN203592057U (en) | 2013-10-26 | 2013-10-26 | Cold stamping forming die for spiral bevel gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203592057U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104972002A (en) * | 2015-07-17 | 2015-10-14 | 武汉理工大学 | Helical gear demoulding device and method |
| CN110496904A (en) * | 2019-09-10 | 2019-11-26 | 苏州市冯氏智能科技有限公司 | A kind of stamping die with umbrella shaped support structure |
| CN112058936A (en) * | 2019-06-10 | 2020-12-11 | 上海汽车变速器有限公司 | Cold extrusion molding process of bevel gear |
-
2013
- 2013-10-26 CN CN201320680646.XU patent/CN203592057U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104972002A (en) * | 2015-07-17 | 2015-10-14 | 武汉理工大学 | Helical gear demoulding device and method |
| CN112058936A (en) * | 2019-06-10 | 2020-12-11 | 上海汽车变速器有限公司 | Cold extrusion molding process of bevel gear |
| CN110496904A (en) * | 2019-09-10 | 2019-11-26 | 苏州市冯氏智能科技有限公司 | A kind of stamping die with umbrella shaped support structure |
| CN110496904B (en) * | 2019-09-10 | 2024-03-15 | 苏州市冯氏智能科技有限公司 | Stamping die with umbrella-shaped supporting structure |
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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: 20140514 Termination date: 20141026 |
|
| EXPY | Termination of patent right or utility model |