CN103447441A - Helical gear heading mold - Google Patents
Helical gear heading mold Download PDFInfo
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- CN103447441A CN103447441A CN2013103715957A CN201310371595A CN103447441A CN 103447441 A CN103447441 A CN 103447441A CN 2013103715957 A CN2013103715957 A CN 2013103715957A CN 201310371595 A CN201310371595 A CN 201310371595A CN 103447441 A CN103447441 A CN 103447441A
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- helical gear
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- cavity
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Abstract
The invention discloses a helical gear heading mold. The helical gear heading mold consists of an upper die and a lower die, and is characterized in that the upper die comprises an upper die sleeve and a punch, wherein the punch is arranged in an inner hole of the upper die sleeve in a vertically moving manner; the lower die comprises a lower die sleeve and a rotary die body; the rotary die body is rotatably arranged in a cavity of the lower die sleeve through upper and lower planar bearings; an inner hole is formed in the middle of the rotary die body for fixing an alloy die core; the alloy die core is provided with a helical gear heading die cavity; the upper section of the die cavity is provided with a straight hole; the lower section of the die cavity is provided with a helical gear cavity which has the same shape as that of a headed helical gear; the bottom of the die cavity is communicated with a rear through ejector rod guide hole; a rear through ejector rod is movably arranged in the rear through ejector rod guide hole; during cold heading forming of the helical gear, the bottom surface of the upper die sleeve is tightly attached to the top surface of the alloy die core, and the head of the punch extends into the die cavity of the alloy die core. According to the helical gear heading mold, cold heading forming of helical gears on cold heading equipment can be realized, the helical gear machining efficiency is greatly improved, the helical gear machining period is shortened and the helical gear manufacturing cost is reduced.
Description
Technical field
The present invention relates to a kind of cold upsetting die of car, be specifically related to a kind of helical gear upsetting molding jig.
Background technology
Be applied to the helical gear of small dimension at present a lot of industry, particularly automobile industries much more especially, current helical gear preparation method is nothing more than machined or die cast processing, at the bottom of the helical gear working (machining) efficiency, the helical gear process-cycle is long, and the helical gear manufacturing cost is high.
Summary of the invention
The deficiency existed for prior art, purpose of the present invention is intended to provide a kind of can realize that helical gear carries out the helical gear upsetting molding jig of cold-heading molding processing on cold-heading equipment.
The present invention implements by the following technical programs:
Helical gear upsetting molding jig, be comprised of upper die and lower die, it is characterized in that: described patrix comprises Upper Die-sleeve and drift, and drift is in the up and down setting of the endoporus of Upper Die-sleeve; Described counterdie comprises lower die-sleeve and rotation die body, the rotation die body rotatably arranges at the lower die-sleeve inner chamber by upper and lower plane bearing, rotation is provided with endoporus in the middle of die body for fixing alloy core rod, the alloy core rod is provided with helical gear upsetting molding chamber, the die cavity epimere is straight hole, the die cavity hypomere has the helical teeth chamber identical with institute upsetting helical gear profile processed, and the die cavity bottom communicates with rear logical push rod guide hole, in rear logical push rod guide hole, is movably equipped with rear logical push rod; During the helical gear cold-heading molding, the end face of the bottom surface of Upper Die-sleeve and alloy core rod is adjacent to, and the head of drift extend in the die cavity of alloy core rod.
The helical gear upsetting molding jig of technique scheme, can realize that helical gear directly carries out cold-heading molding processing on cold-heading equipment, operation principle is: at first the metal wire rod of cutting into chunks is sent to the die cavity epimere of alloy core rod, then patrix moves down the bottom surface of Upper Die-sleeve and the end face of alloy core rod is adjacent to, then the head of drift extend into the interior pushing downwards of the die cavity metal wire rod of alloy core rod, metal wire rod is pressed against the die cavity hypomere subsequently, because the die cavity hypomere is the helical teeth chamber, so in drift promotion metal wire rod is clamp-oned the process in helical teeth chamber, rotating mould is known from experience the corresponding rotation of generation, until metal wire rod is fully shaped to helical gear, then, drift and Upper Die-sleeve return, the die cavity that rear logical push rod stretches into the alloy core rod is up ejected workpiece, now rotates die body and also can rotate accordingly, and workpiece is successfully exited from the helical teeth chamber, finally completes helical gear cold-heading molding and makes.Because the present invention has realized the cold-heading molding processing of helical gear on cold-heading equipment, so greatly improved the helical gear working (machining) efficiency, shortened the helical gear process-cycle, reduced the helical gear manufacturing cost, compared with prior art, there is outstanding substantive distinguishing features and significant progressive.
The accompanying drawing explanation
The present invention has following accompanying drawing:
Fig. 1 is structural representation of the present invention,
The helical gear outline drawing that Fig. 2 is upsetting system of the present invention.
The specific embodiment
As shown in Figure 1, helical gear upsetting molding jig of the present invention, be comprised of upper die and lower die, and described patrix comprises Upper Die-sleeve 2 and drift 3, and drift 3 is in the up and down setting of the endoporus of Upper Die-sleeve 2, and the top of drift 3 is provided with compression bar 1, described counterdie comprises lower die-sleeve and rotation die body 7, lower die-sleeve is spun and is formed by upper bush 6 and lower sleeve 10 screw threads, rotation die body 7 rotatably arranges at the lower die-sleeve inner chamber by upper plane bearing 5 and lower plane bearing 8, prop up on the interior hole end surface of upper bush 6 upper surface of upper plane bearing 5, prop up on pad mould 9 lower surface of lower plane bearing 8, pad mould 9 carries out when screw thread screws being fixed in Upper Die-sleeve at upper and lower sleeve, be provided with endoporus in the middle of described rotation die body 7 for fixing alloy core rod 4, alloy core rod 4 is provided with helical gear upsetting molding chamber, the die cavity epimere is straight hole 11, the die cavity hypomere has the helical teeth chamber 12 identical with institute upsetting helical gear profile processed, the die cavity bottom communicates with rear logical push rod guide hole, be movably equipped with rear logical push rod 13 in rear logical push rod guide hole, during the helical gear cold-heading molding, the end face of the bottom surface of Upper Die-sleeve 2 and alloy core rod 4 is adjacent to, and the head of drift 3 extend in the die cavity of alloy core rod 4.
Figure 2 shows that the helical gear outline drawing by cold-heading molding of the present invention.The present invention realizes the cold-heading molding of helical gear on cold-heading equipment like this: at first the metal wire rod of cutting into chunks is sent to the die cavity epimere of alloy core rod 4, then patrix moves down the bottom surface of Upper Die-sleeve 2 and the end face of alloy core rod 4 is adjacent to, then the head of drift 3 extend into the interior pushing downwards of the die cavity metal wire rod of alloy core rod 4, metal wire rod is pressed against the die cavity hypomere subsequently, because the die cavity hypomere is the helical teeth chamber, so in drift promotion metal wire rod is clamp-oned the process in helical teeth chamber, rotation die body 7 can produce corresponding the rotation, until metal wire rod is fully shaped to helical gear; Then, drift 3 and Upper Die-sleeve 2 returns, the die cavity that rear logical push rod 13 stretches into alloy core rod 4 is up ejected workpiece, now rotates die body 7 and also can rotate accordingly, and workpiece is successfully exited from the helical teeth chamber, finally completes helical gear cold-heading molding and makes.
Claims (1)
1. helical gear upsetting molding jig, be comprised of upper die and lower die, it is characterized in that: described patrix comprises Upper Die-sleeve and drift, and drift is in the up and down setting of the endoporus of Upper Die-sleeve; Described counterdie comprises lower die-sleeve and rotation die body, the rotation die body rotatably arranges at the lower die-sleeve inner chamber by upper and lower plane bearing, rotation is provided with endoporus in the middle of die body for fixing alloy core rod, the alloy core rod is provided with helical gear upsetting molding chamber, the die cavity epimere is straight hole, the die cavity hypomere has the helical teeth chamber identical with institute upsetting helical gear profile processed, and the die cavity bottom communicates with rear logical push rod guide hole, in rear logical push rod guide hole, is movably equipped with rear logical push rod; During the helical gear cold-heading molding, the end face of the bottom surface of Upper Die-sleeve and alloy core rod is adjacent to, and the head of drift extend in the die cavity of alloy core rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310371595.7A CN103447441B (en) | 2013-08-23 | 2013-08-23 | Helical gear heading mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310371595.7A CN103447441B (en) | 2013-08-23 | 2013-08-23 | Helical gear heading mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103447441A true CN103447441A (en) | 2013-12-18 |
| CN103447441B CN103447441B (en) | 2015-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310371595.7A Active CN103447441B (en) | 2013-08-23 | 2013-08-23 | Helical gear heading mold |
Country Status (1)
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| CN (1) | CN103447441B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104001806A (en) * | 2014-06-05 | 2014-08-27 | 武汉理工大学 | Sheet forming die and method of helical cylinder gear |
| CN104801648A (en) * | 2015-05-05 | 2015-07-29 | 宁波斯耐奇金属制品有限公司 | Motor gear shaft cold heading forming process |
| CN108436010A (en) * | 2018-01-23 | 2018-08-24 | 台州万特汽车零部件有限公司 | Helical tooth cold forging machine |
| 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 |
| TWI722949B (en) * | 2020-07-30 | 2021-03-21 | 瑋瑩實業有限公司 | Twill molding die structure for riveting nut |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4289526A1 (en) * | 2022-06-09 | 2023-12-13 | FELSS Systems GmbH | Forming method and forming machine for producing helical gearing of a cylindrical workpiece by extrusion |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3915969A1 (en) * | 1989-05-17 | 1990-11-22 | Doege Eckart | Forging unit for gear wheels - has blank forged in toothed stamping die by longitudinal introduction of at least one press |
| JPH04371335A (en) * | 1991-06-20 | 1992-12-24 | Komatsu Ltd | Method and die unit for forging spiral bevel gear |
| EP0528761A1 (en) * | 1991-08-17 | 1993-02-24 | Alvier Werkzeugbau Ag | Modular apparatus for press-forming or calibrating of parts with helical contours |
| US5465597A (en) * | 1994-07-18 | 1995-11-14 | Ford Motor Company | Extrusion forming of internal helical splines |
| JPH10118740A (en) * | 1996-10-17 | 1998-05-12 | Techno Parts Kk | Equipment for machining helical gear |
| EP0891824A1 (en) * | 1996-11-11 | 1999-01-20 | Honda Giken Kogyo Kabushiki Kaisha | Hot forging device for bevel gear |
| CN1210767A (en) * | 1997-08-27 | 1999-03-17 | 本田技研工业株式会社 | Apparatus for and method of sizing helical gears |
| US6440357B1 (en) * | 1996-05-09 | 2002-08-27 | Stackpole Limited | Compacted-powder opposed twin-helical gears and method |
| CN203390145U (en) * | 2013-08-23 | 2014-01-15 | 浙江振华紧固件有限公司 | Bevel wheel heading die |
-
2013
- 2013-08-23 CN CN201310371595.7A patent/CN103447441B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3915969A1 (en) * | 1989-05-17 | 1990-11-22 | Doege Eckart | Forging unit for gear wheels - has blank forged in toothed stamping die by longitudinal introduction of at least one press |
| JPH04371335A (en) * | 1991-06-20 | 1992-12-24 | Komatsu Ltd | Method and die unit for forging spiral bevel gear |
| EP0528761A1 (en) * | 1991-08-17 | 1993-02-24 | Alvier Werkzeugbau Ag | Modular apparatus for press-forming or calibrating of parts with helical contours |
| US5465597A (en) * | 1994-07-18 | 1995-11-14 | Ford Motor Company | Extrusion forming of internal helical splines |
| US6440357B1 (en) * | 1996-05-09 | 2002-08-27 | Stackpole Limited | Compacted-powder opposed twin-helical gears and method |
| JPH10118740A (en) * | 1996-10-17 | 1998-05-12 | Techno Parts Kk | Equipment for machining helical gear |
| EP0891824A1 (en) * | 1996-11-11 | 1999-01-20 | Honda Giken Kogyo Kabushiki Kaisha | Hot forging device for bevel gear |
| CN1210767A (en) * | 1997-08-27 | 1999-03-17 | 本田技研工业株式会社 | Apparatus for and method of sizing helical gears |
| CN203390145U (en) * | 2013-08-23 | 2014-01-15 | 浙江振华紧固件有限公司 | Bevel wheel heading die |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104001806A (en) * | 2014-06-05 | 2014-08-27 | 武汉理工大学 | Sheet forming die and method of helical cylinder gear |
| CN104001806B (en) * | 2014-06-05 | 2015-09-30 | 武汉理工大学 | A kind of sheet forming mould of helical gears and method |
| CN104801648A (en) * | 2015-05-05 | 2015-07-29 | 宁波斯耐奇金属制品有限公司 | Motor gear shaft cold heading forming process |
| CN108436010A (en) * | 2018-01-23 | 2018-08-24 | 台州万特汽车零部件有限公司 | Helical tooth cold forging machine |
| CN108436010B (en) * | 2018-01-23 | 2019-12-10 | 台州万特汽车零部件有限公司 | Cold forging machine for spiral teeth |
| 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 |
| TWI722949B (en) * | 2020-07-30 | 2021-03-21 | 瑋瑩實業有限公司 | Twill molding die structure for riveting nut |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103447441B (en) | 2015-06-10 |
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Effective date of registration: 20180123 Address after: 315336 Hangzhou bay new area, Cixi City, Ningbo, Zhejiang, No. 237 Binhai Road, No. two Patentee after: Ningbo Zhenhua Beijing Great Automotive Components Company Limited Address before: 325200 Wenzhou City, Zhejiang, cen Qi Industrial Zone, Ting Tin Town, Ruian City Patentee before: Zhejiang Zhenhua Fastener Co., Ltd. |
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| TR01 | Transfer of patent right |