CN102825084B - Cold extrusion device, and female die and male die thereof - Google Patents
Cold extrusion device, and female die and male die thereof Download PDFInfo
- Publication number
- CN102825084B CN102825084B CN201110408628.1A CN201110408628A CN102825084B CN 102825084 B CN102825084 B CN 102825084B CN 201110408628 A CN201110408628 A CN 201110408628A CN 102825084 B CN102825084 B CN 102825084B
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- die
- guide post
- fairlead
- sleeve
- endoporus
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Abstract
The invention discloses a cold extrusion device, and a female die and a male die thereof. The cold extrusion device comprises the female die and the male die, wherein the female die comprises a die seat; the die seat has a sleeve-shaped structure; the lower end of the inner pore of the die seat is provided with a lower guiding sleeve; a die sleeve is arranged in the inner pore of the die seat and above the lower guiding sleeve; the internal diameter of the die sleeve is equal to the external diameter of a workpiece; the upper end of the die sleeve is detachably provided with an upper guiding sleeve; the inner pore of the upper guiding sleeve is an upper guiding pore; the upper part of the inner pore of the lower guiding sleeve is provided with a cutter entering pore avoiding an extrusion head cutter; the pore diameter of the cutter entering pore is less the internal diameter of the die sleeve; the lower part of the inner pore of the lower guiding sleeve is a lower guiding pore; the male die comprises a guiding rod having a guiding direction movably fitting with the upper and lower guiding pores; and the middle part of the guiding rod is provided with the extrusion head cutter having saw-shaped inner teeth. The cold extrusion device, which enables positioning to be carried out through the upper and lower guiding sleeves and the cold extrusion process to be completed through a case that the extrusion head cutter traverses from one end of the workpiece to the other end of the workpeice, has the advantages of simple structure, small comprehensive error, and good dimensional consistency of processed products.
Description
Technical field
The present invention relates to a kind of cold extrusion device processing jagged endoporus, the invention still further relates to the die of this cold extrusion device, punch.
Background technology
At present, the processing of internal saw tooth is very difficult, freewheel clutch out star wheel is a kind of part with complicated endoporus die cavity, cold extrusion device such as mould industry the 32nd volume the 6th phase in 2006 of the endoporus of prior art processing freewheel clutch discloses cold extrusion die for axle sleeve with internal saw tooth tool, comprise lower bolster, the upper end of lower bolster is equipped with counterdie backing plate, counterdie backing plate is installed with die shoe, die case is equipped with in die shoe, die plate insert is equipped with in die case, die shoe is provided with the lower moulded board be pressed on by die shoe on lower bolster, lower bolster is equipped with the upper clamping plate moved up and down relative to die shoe by lead, upper clamping plate lower end is installed with upper die plate, the lower end of upper die plate is provided with cope match-plate pattern, patrix overcoat is equipped with in cope match-plate pattern, profile of tooth punch case is equipped with in patrix overcoat, profile of tooth punch is equipped with in profile of tooth punch case, cope match-plate pattern lower end is provided with the upper molded plate be pressed on by cope match-plate pattern on upper clamping plate, the complex structure of prior art, part is more, each part all can produce mismachining tolerance adding man-hour, and can rigging error be produced when each part assembles, cause the error of the product processed larger, the dimensional uniformity of product is poor.
Summary of the invention
The object of the present invention is to provide a kind of cold extrusion device, to solve in prior art due to the problem that the complex structure of prior art causes the product error that processes larger, the present invention also aims to die, punch that this cold extrusion device is provided simultaneously.
For achieving the above object, a kind of cold extrusion device of the present invention adopts following technical scheme: a kind of cold extrusion device, comprise die and punch, described die comprises die holder, die holder has sleeve shaped structure, die holder lower port is provided with adduction and turns edge, die holder coaxial elastic conjunction in adduction turns edge the endoporus that surrounds has lower fairlead, the upper end of lower fairlead is provided with to turn edge with described adduction and laminates extending out of coordinating and turn edge, coaxially die sleeve is equipped with in the top of lower fairlead in the endoporus of die holder, the internal diameter of die sleeve is equal with the external diameter of workpiece, the upper end of die sleeve is detachably coaxially equipped with fairlead, the endoporus of upper fairlead is upper pilot hole, the upper part of the endoporus of lower fairlead is provided with the feed hole for dodging extrusion head cutter, the aperture in feed hole is less than the internal diameter of die sleeve, the bottom of the endoporus of lower fairlead is divided into the lower pilot hole for leading to punch, described punch is located in the guide post in the straight hole that is made up of the endoporus of die sleeve and upper and lower pilot hole when comprising use, the top and the bottom of described guide post are respectively with upper, lower pilot hole guiding movement coordinates, the middle part of guide post is fixedly equipped with extrusion head cutter, extrusion head cutter has the zigzag outer peripheral face for precessing saw shape internal tooth.
The lower gasket ring be provided with between fairlead and die sleeve for supporting workpiece, the internal diameter of gasket ring is greater than the maximum outside diameter of extrusion head cutter, is less than the internal diameter of die sleeve.
Described upper fairlead comprises the tubular construction coordinated with die sleeve upper part sleeve, and by upper head plate closed for the upper end open of tubular construction, described upper pilot hole is arranged on upper head plate, the outer peripheral face of described die sleeve upper part is taper surface, and the endoporus of upper fairlead has the conical inboard wall with described taper surface location fit.
Described guide post comprises guide post and lower guide post, and upper guide post is connected by helicitic texture with lower guide post, and described extrusion head cutter is fixedly assemblied on lower guide post.
It is large that described helicitic texture comprises the two ends diameter that guide post is provided with along its Axis Extension, the ladder hole that mid diameter is little, the upper end of described lower guide post is convexly equipped with the boss in the large diameter hole of the lower end for being plugged into upper guide post, boss upper surface is to being arranged with screwed hole, and upper guide post is connected with lower guide post through being screwed in described screwed hole by the large diameter hole of upper guide post upper end by bolt.
The die of a kind of cold extrusion device of the present invention adopts following technical scheme: a kind of die of cold extrusion device, comprise die holder, die holder has sleeve shaped structure, die holder lower end is provided with adduction and turns edge, die holder coaxial elastic conjunction in adduction turns edge the endoporus that surrounds has lower fairlead, the upper end of lower fairlead is provided with to turn edge with described adduction and laminates extending out of coordinating and turn edge, coaxially die sleeve is equipped with in the top of lower fairlead in the endoporus of die holder, the internal diameter of die sleeve is equal with the external diameter of workpiece, the upper end of die sleeve is detachably coaxially equipped with fairlead, the endoporus of upper fairlead is upper pilot hole, the upper part of the endoporus of lower fairlead is provided with the feed hole for dodging extrusion head cutter, the aperture in feed hole is less than the internal diameter of die sleeve, the bottom of the endoporus of lower fairlead is divided into lower pilot hole.
The lower gasket ring be provided with between fairlead and die sleeve for supporting workpiece, the internal diameter of gasket ring is greater than the maximum outside diameter of extrusion head cutter, is less than the internal diameter of die sleeve.
Described upper fairlead comprises the tubular construction coordinated with die sleeve upper part sleeve, and by upper head plate closed for the upper end open of tubular construction, described upper pilot hole is arranged on upper head plate, the outer peripheral face of described die sleeve upper part is taper surface, and the endoporus of upper fairlead has the conical inboard wall with described taper surface location fit.
The punch of a kind of cold extrusion device of the present invention adopts following technical scheme: a kind of punch of cold extrusion device, for being located in the guide post in the straight hole that is made up of the endoporus of the die sleeve of die and upper and lower pilot hole when comprising use, the upper and lower part of described guide post has the external cylindrical surface for coordinating with the upper upper and lower pilot hole guiding movement of die, the middle part of guide post is fixedly equipped with extrusion head cutter, and extrusion head cutter has the zigzag outer peripheral face for precessing saw shape internal tooth.
Described guide post comprises guide post and lower guide post, and upper guide post is connected by helicitic texture with lower guide post, and described extrusion head cutter is fixedly assemblied on lower guide post.
A kind of cold extrusion device of the present invention, is located by upper and lower fairlead, and extrusion head cutter completes cold-stamped process by one end of workpiece through the other end, and structure is simple, and the composition error of generation is less, and the product size uniformity processed is good.
Further, the taper surface of the cooperation that the present invention is arranged, can reach the object that fairlead is concentric with die sleeve more accurately.
Further, be threaded connection, be convenient to dismounting and the replacing of upper and lower guide post, save material.
Further, die holder is by gear along spacing, and lower fairlead elastic conjunction, in die holder endoporus, makes whole assembly structure more firm.
Accompanying drawing explanation
Fig. 1 is the use schematic diagram of the embodiment of pressurizing unit of the present invention;
Fig. 2 is the structural representation of the die of cold extrusion device of the present invention;
Fig. 3 is the structural representation of the punch of cold extrusion device of the present invention.
Detailed description of the invention
The embodiment of a kind of cold extrusion device of the present invention, as shown in Figure 1, comprise die and punch, described die comprises die holder 9, die holder 9 has sleeve shaped structure, die holder 9 lower end is provided with adduction and turns edge, die holder coaxial elastic conjunction in adduction turns edge the endoporus that surrounds has lower fairlead 8, the upper end of lower fairlead 8 is provided with to turn edge with described adduction and laminates extending out of coordinating and turn edge, die sleeve 4 is coaxially equipped with in the top of lower fairlead 8 in the endoporus of die holder 9, the internal diameter of die sleeve 4 is equal with the external diameter of workpiece, the upper end of die sleeve 4 is detachably coaxially arranged with fairlead 3, upper fairlead 3 comprises the tubular construction coordinated with die sleeve upper part sleeve, and by upper head plate closed for the upper end open of tubular construction, upper head plate is provided with pilot hole, the outer peripheral face on die sleeve 4 top is taper surface, the endoporus of upper fairlead 3 has the conical inboard wall with described taper surface location fit, the upper part of the endoporus of lower fairlead 8 is provided with the feed hole for dodging extrusion head cutter, the aperture in feed hole is less than the internal diameter of die sleeve 4, the bottom of the endoporus of lower fairlead 8 is divided into lower pilot hole, the gasket ring 7 for supporting workpiece 10 is provided with between lower fairlead 8 and die sleeve 4, the internal diameter of gasket ring 7 is greater than the maximum outside diameter of extrusion head cutter 5, be less than the internal diameter of die sleeve 4, described punch is located in through hole that the endoporus of die sleeve 9 and upper and lower pilot hole form jointly and with upper when comprising use, the guide post 1 that lower pilot hole guiding movement coordinates, guide post 1 comprises guide post 11 and lower guide post 12, upper guide post 11 is connected by helicitic texture with lower guide post 12, it is large that helicitic texture comprises the two ends diameter that guide post 11 is provided with along its Axis Extension, the ladder hole that mid diameter is little, the upper end of lower guide post 11 is convexly equipped with the boss in the large diameter hole of the lower end being plugged into guide post, boss is provided with screwed hole, upper guide post 11 is connected with lower guide post 12 through being screwed in screwed hole by the large diameter hole of upper guide post upper end by bolt 2, lower guide post is fixedly equipped with extrusion head cutter 5, extrusion head cutter 5 has the zigzag outer peripheral face for precessing saw shape internal tooth.
The embodiment of the die of a kind of cold extrusion device of the present invention, as shown in Figure 2, described die comprises die holder 9, die holder 9 has sleeve shaped structure, die holder 9 lower end is provided with adduction and turns edge, die holder coaxial elastic conjunction in adduction turns edge the endoporus that surrounds has lower fairlead 8, the upper end of lower fairlead 8 is provided with to turn edge with described adduction and laminates extending out of coordinating and turn edge, die sleeve 4 is coaxially equipped with in the top of lower fairlead 8 in the endoporus of die holder 9, the internal diameter of die sleeve 4 is equal with the external diameter of workpiece, the upper end of die sleeve 4 is detachably coaxially arranged with fairlead 3, upper fairlead 3 comprises the tubular construction coordinated with die sleeve upper part sleeve, and by upper head plate closed for the upper end open of tubular construction, upper head plate is provided with pilot hole, the outer peripheral face on die sleeve 4 top is taper surface, the endoporus of upper fairlead 3 has the conical inboard wall with described taper surface location fit, the upper part of the endoporus of lower fairlead 8 is provided with the feed hole for dodging extrusion head cutter, the aperture in feed hole is less than the internal diameter of die sleeve 4, the bottom of the endoporus of lower fairlead 8 is divided into lower pilot hole, the gasket ring 7 for supporting workpiece 10 is provided with between lower fairlead 8 and die sleeve 4, the internal diameter of gasket ring 7 is greater than the maximum outside diameter of extrusion head cutter 5, be less than the internal diameter of die sleeve 4.
The embodiment of the punch of a kind of cold extrusion device of the present invention, as shown in Figure 3, in the through hole jointly formed for the endoporus and upper and lower pilot hole being located in die sleeve when comprising use and with, the guide post that lower pilot hole guiding movement coordinates, guide post comprises guide post 11 and lower guide post 12, upper guide post 11 is connected by helicitic texture with lower guide post 12, it is large that helicitic texture comprises the two ends diameter that guide post 11 is provided with along its Axis Extension, the ladder hole that mid diameter is little, the upper end of lower guide post 11 is convexly equipped with the boss in the large diameter hole of the lower end being plugged into guide post, boss is provided with screwed hole, upper guide post 11 is connected with lower guide post 12 through being screwed in screwed hole by the large diameter hole of upper guide post upper end by bolt 2, lower guide post is fixedly equipped with extrusion head cutter 5, extrusion head cutter 5 has the zigzag outer peripheral face for precessing saw shape internal tooth.
Upper and lower guide post and extrusion head cutter in use, before extruding, are first linked together by hexagon socket head cap screw by cold extrusion device of the present invention, form a punch, more lower fairlead and gasket ring are pressed into successively in die holder, carry out extruding preparation; During extruding, sliding for workpiece joining is put into die sleeve, the upper surface of gasket ring will be close in the lower surface of workpiece, again punch is passed by workpiece, lower guide post is deep in the endoporus of lower fairlead, again upper fairlead is passed from the upper guide post of punch entirety the upper part that cover is set to die sleeve, in requirement, the conical inboard wall of fairlead coordinates completely with the taper surface of die sleeve, to ensure positioning precision; Finally, apply pressure to upper guide head top by forcing press, punch runs through workpiece from top to bottom, completes Cold Extrusion Process.
The present invention is by controlling metal flow, adopt suitable punch structure and rational blank shape, cold-extrusion shaping processing is carried out to the cone gear form endoporus of clutch out star wheel, structure of the present invention is simple, not only surface smoothness is high, dimensional accuracy is high, dimensional uniformity is good for the clutch out star wheel endoporus produced, and endoporus die cavity does not need subsequent mechanical processing just can meet its designing requirement, can enhance productivity greatly, and reduce production cost.
In other embodiments, described upper fairlead can also be arranged to tubular construction, the endoporus of described tubular construction is upper pilot hole, the lower end of tubular construction is provided with outer turning edge, through hole is provided with outward on turning edge, die sleeve upper end is provided with the screwed hole corresponding with through hole, and upper fairlead is threaded connection to be fixed with die sleeve.
In other embodiments, can not also gasket ring be set, directly workpiece be positioned over lower fairlead upper surface.
In other embodiments, described guide post can also make integrative-structure.
In other embodiments, described helicitic texture can also be provided with boss on upper guide post, and boss is provided with external screw thread, lower guide post upper end is to being arranged with internal thread hole, during use, upper guide post is screwed in the internal thread hole of lower guide post, can connection be completed.
Claims (10)
1. a cold extrusion device, comprise die and punch, it is characterized in that, described die comprises die holder, die holder has sleeve shaped structure, die holder lower port is provided with adduction and turns edge, die holder coaxial elastic conjunction in adduction turns edge the endoporus that surrounds has lower fairlead, the upper end of lower fairlead is provided with to turn edge with described adduction and laminates extending out of coordinating and turn edge, coaxially die sleeve is equipped with in the top of lower fairlead in the endoporus of die holder, the internal diameter of die sleeve is equal with the external diameter of workpiece, the upper end of die sleeve is detachably coaxially equipped with fairlead, the endoporus of upper fairlead is upper pilot hole, the upper part of the endoporus of lower fairlead is provided with the feed hole for dodging extrusion head cutter, the aperture in feed hole is less than the internal diameter of die sleeve, the bottom of the endoporus of lower fairlead is divided into the lower pilot hole for leading to punch, described punch is located in the guide post in the straight hole that is made up of the endoporus of die sleeve and upper and lower pilot hole when comprising use, the top and the bottom of described guide post are respectively with upper, lower pilot hole guiding movement coordinates, the middle part of guide post is fixedly equipped with extrusion head cutter, extrusion head cutter has the zigzag outer peripheral face for precessing saw shape internal tooth, located by upper and lower fairlead, extrusion head cutter completes cold-stamped process by one end of workpiece through the other end.
2. cold extrusion device according to claim 1, is characterized in that, the lower gasket ring be provided with between fairlead and die sleeve for supporting workpiece, the internal diameter of gasket ring is greater than the maximum outside diameter of extrusion head cutter, is less than the internal diameter of die sleeve.
3. cold extrusion device according to claim 1, it is characterized in that, described upper fairlead comprises the tubular construction coordinated with die sleeve upper part sleeve, and by upper head plate closed for the upper end open of tubular construction, described upper pilot hole is arranged on upper head plate, the outer peripheral face of described die sleeve upper part is taper surface, and the endoporus of upper fairlead has the conical inboard wall with described taper surface location fit.
4. cold extrusion device according to claim 1, is characterized in that, described guide post comprises guide post and lower guide post, and upper guide post is connected by helicitic texture with lower guide post, and described extrusion head cutter is fixedly assemblied on lower guide post.
5. cold extrusion device according to claim 4, it is characterized in that, described helicitic texture comprises the ladder hole that two ends diameter is large, mid diameter is little along its Axis Extension that guide post is arranged, the upper end of described lower guide post is convexly equipped with the boss in the large diameter hole of the lower end for being plugged into upper guide post, boss upper surface is to being arranged with screwed hole, and upper guide post is connected with lower guide post through being screwed in described screwed hole by the large diameter hole of upper guide post upper end by bolt.
6. the die of a cold extrusion device, it is characterized in that, comprise die holder, die holder has sleeve shaped structure, die holder lower end is provided with adduction and turns edge, die holder coaxial elastic conjunction in adduction turns edge the endoporus that surrounds has lower fairlead, the upper end of lower fairlead is provided with to turn edge with described adduction and laminates extending out of coordinating and turn edge, coaxially die sleeve is equipped with in the top of lower fairlead in the endoporus of die holder, the internal diameter of die sleeve is equal with the external diameter of workpiece, the upper end of die sleeve is detachably coaxially equipped with fairlead, the endoporus of upper fairlead is upper pilot hole, the upper part of the endoporus of lower fairlead is provided with the feed hole for dodging extrusion head cutter, the aperture in feed hole is less than the internal diameter of die sleeve, the bottom of the endoporus of lower fairlead is divided into lower pilot hole, the endoporus of the die sleeve of die and upper and lower pilot hole form straight hole.
7. the die of cold extrusion device according to claim 6, is characterized in that, the lower gasket ring be provided with between fairlead and die sleeve for supporting workpiece, the internal diameter of gasket ring is greater than the maximum outside diameter of extrusion head cutter, is less than the internal diameter of die sleeve.
8. the die of cold extrusion device according to claim 6, it is characterized in that, described upper fairlead comprises the tubular construction coordinated with die sleeve upper part sleeve, and by upper head plate closed for the upper end open of tubular construction, described upper pilot hole is arranged on upper head plate, the outer peripheral face of described die sleeve upper part is taper surface, and the endoporus of upper fairlead has the conical inboard wall with described taper surface location fit.
9. the punch of a cold extrusion device, it is characterized in that, for being located in the guide post in the straight hole that is made up of the endoporus of the die sleeve of die and upper and lower pilot hole when comprising use, the upper and lower part of described guide post has the external cylindrical surface for coordinating with the upper and lower pilot hole guiding movement on die, the middle part of guide post is fixedly equipped with extrusion head cutter, extrusion head cutter has the zigzag outer peripheral face for precessing saw shape internal tooth, and extrusion head cutter completes cold-stamped process by one end of workpiece through the other end.
10. the punch of cold extrusion device according to claim 9, is characterized in that, described guide post comprises guide post and lower guide post, and upper guide post is connected by helicitic texture with lower guide post, and described extrusion head cutter is fixedly assemblied on lower guide post.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110408628.1A CN102825084B (en) | 2011-12-09 | 2011-12-09 | Cold extrusion device, and female die and male die thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110408628.1A CN102825084B (en) | 2011-12-09 | 2011-12-09 | Cold extrusion device, and female die and male die thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102825084A CN102825084A (en) | 2012-12-19 |
| CN102825084B true CN102825084B (en) | 2015-07-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110408628.1A Expired - Fee Related CN102825084B (en) | 2011-12-09 | 2011-12-09 | Cold extrusion device, and female die and male die thereof |
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| CN (1) | CN102825084B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103419003B (en) * | 2013-09-18 | 2016-04-20 | 浙江向隆机械有限公司 | A kind of constant velocity driveshaft ball cage processing technology |
| JP6255205B2 (en) * | 2013-10-10 | 2017-12-27 | 川重商事株式会社 | Forging equipment |
| CN105015019B (en) * | 2014-04-28 | 2019-04-19 | 重庆市奇龙工贸有限公司 | Integrated die set device |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2582547B1 (en) * | 1985-05-31 | 1988-12-02 | Commissariat Energie Atomique | DIE FOR HOT SPINNING |
| SU1386350A1 (en) * | 1986-10-08 | 1988-04-07 | Предприятие П/Я А-3573 | Arrangement for upsetting the thickenings in bars |
| CN2030514U (en) * | 1987-11-09 | 1989-01-11 | 长春第一汽车制造厂 | Die for cold-extruding hub nut in single process |
| US5329835A (en) * | 1992-10-07 | 1994-07-19 | Wilson Tool International, Inc. | Adjustable length punch set assembly |
| JP4592135B2 (en) * | 1999-12-28 | 2010-12-01 | 株式会社アマダ | Mold equipment |
| JP4649015B2 (en) * | 2000-06-16 | 2011-03-09 | 株式会社アマダ | Punch mold and height adjustment tool |
| CN2460237Y (en) * | 2000-12-26 | 2001-11-21 | 武金有 | Cold-temp. extruding profiling die of internal-external circul helical gear |
| CN2625071Y (en) * | 2003-07-07 | 2004-07-14 | 中国科学院金属研究所 | Floating supporting device |
| KR100608160B1 (en) * | 2005-09-13 | 2006-08-02 | 주식회사 코우 | Seration forming apparatus and the method inside pipe |
| CN201404992Y (en) * | 2009-05-15 | 2010-02-17 | 广州市启泰模具工业有限公司 | Upper die device of numerical control punch die |
| CN102211124B (en) * | 2011-04-22 | 2013-01-23 | 昆山长鹰硬质合金有限公司 | Sawtoothed tool bit mould |
| CN202356436U (en) * | 2011-12-09 | 2012-08-01 | 洛阳轴研科技股份有限公司 | Cold extrusion device and female die and male die of same |
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2011
- 2011-12-09 CN CN201110408628.1A patent/CN102825084B/en not_active Expired - Fee Related
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Effective date of registration: 20180509 Address after: 471000 No. 1 axis research road, Jianxi science and Technology Industrial Park, Luoyang, Henan Patentee after: Luoyang Bearing Research Institute Address before: 471039 Fenghua Road 6, hi tech Development Zone, Luoyang, Henan. Patentee before: Zhouyan Science and Technology Co., Ltd., Luoyang |
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