CN103447441B - Helical gear heading mold - Google Patents
Helical gear heading mold Download PDFInfo
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- CN103447441B CN103447441B CN201310371595.7A CN201310371595A CN103447441B CN 103447441 B CN103447441 B CN 103447441B CN 201310371595 A CN201310371595 A CN 201310371595A CN 103447441 B CN103447441 B CN 103447441B
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- die
- helical gear
- sleeve
- cavity
- heading
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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 in current a lot of industry, particularly automobile industry much more especially, current helical gear preparation method is nothing more than machined or die cast processing, at the bottom of bevel wheel machining efficiency, the bevel wheel machining cycle is long, and helical gear manufacturing cost is high.
Summary of the invention
For the deficiency that prior art exists, object of the present invention is intended to provide a kind of can realize the helical gear upsetting molding jig that helical gear carries out cold-heading molding processing on cold-heading equipment.
The present invention implements by the following technical programs:
Helical gear upsetting molding jig, is made up 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 rotates die body, rotate die body rotatably to be arranged at lower die-sleeve inner chamber by lower planes bearing, rotate in the middle of die body and be provided with endoporus for fixing alloy core rod, alloy core rod is provided with helical gear upsetting molding chamber, die cavity epimere is straight hole, die cavity hypomere has the helical teeth chamber identical with institute upsetting helical gear profile, and mold cavity bottoms communicates with rear logical push rod guide hole, is movably equipped with rear logical push rod in rear logical push rod guide hole; During helical gear cold-heading molding, the bottom surface of Upper Die-sleeve and the end face of alloy core rod are 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, helical gear can be realized on cold-heading equipment, directly carry out cold-heading molding processing, operation principle is: first the metal wire rod of cutting into chunks is sent to the die cavity epimere of alloy core rod, then the end face of the patrix bottom surface and alloy core rod that move down Upper Die-sleeve is adjacent to, then metal wire rod is pushed downwards in the die cavity that the head of drift extend into alloy core rod, metal wire rod is pressed against die cavity hypomere subsequently, because die cavity hypomere is helical teeth chamber, clamp-on in the process in helical teeth chamber so promote metal wire rod at drift, rotating mould knows from experience the corresponding rotation of generation, until metal wire rod is fully shaped to helical gear, then, drift and Upper Die-sleeve return, workpiece up ejects by the die cavity that rear logical push rod stretches into alloy core rod, now rotates die body and also can rotate accordingly, workpiece is successfully exited from helical teeth chamber, finally completes helical gear cold-heading molding and makes.Owing to present invention achieves the cold-heading molding processing of helical gear on cold-heading equipment, so substantially increase bevel wheel machining efficiency, shorten the bevel wheel machining cycle, reduce helical gear manufacturing cost, compared with prior art, there is outstanding substantive distinguishing features and significant progress.
Accompanying drawing explanation
The present invention has following accompanying drawing:
Fig. 1 is structural representation of the present invention,
Fig. 2 is the helical gear outline drawing of institute of the present invention upsetting.
Detailed description of the invention
As shown in Figure 1, helical gear upsetting molding jig of the present invention, is made up 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 rotates die body 7, lower die-sleeve is spun by upper bush 6 and lower sleeve 10 screw thread and forms, rotate die body 7 rotatably to be arranged at lower die-sleeve inner chamber by upper plane bearing 5 and lower plane bearing 8, the upper surface of upper plane bearing 5 to be propped up in upper bush 6 on hole end surface, the lower surface of lower plane bearing 8 is propped up on pad mould 9, pad mould 9 carries out being fixed in Upper Die-sleeve when screw thread screws at upper and lower sleeve, endoporus is provided with for fixing alloy core rod 4 in the middle of described rotation die body 7, alloy core rod 4 is provided with helical gear upsetting molding chamber, die cavity epimere is straight hole 11, die cavity hypomere has the helical teeth chamber 12 identical with institute upsetting helical gear profile, mold cavity bottoms communicates with rear logical push rod guide hole, rear logical push rod 13 is movably equipped with in rear logical push rod guide hole, during helical gear cold-heading molding, the bottom surface of Upper Die-sleeve 2 and the end face of alloy core rod 4 are 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: first the metal wire rod of cutting into chunks is sent to the die cavity epimere of alloy core rod 4, then the end face of the patrix bottom surface and alloy core rod 4 that move down Upper Die-sleeve 2 is adjacent to, then metal wire rod is pushed downwards in the die cavity that the head of drift 3 extend into alloy core rod 4, metal wire rod is pressed against die cavity hypomere subsequently, because die cavity hypomere is helical teeth chamber, clamp-on in the process in helical teeth chamber so promote metal wire rod at drift, rotate die body 7 and can produce corresponding rotation, until metal wire rod is fully shaped to helical gear; Then, drift 3 and Upper Die-sleeve 2 return, workpiece up ejects by the die cavity that rear logical push rod 13 stretches into alloy core rod 4, now rotates die body 7 and also can rotate accordingly, workpiece is successfully exited from helical teeth chamber, finally completes helical gear cold-heading molding and makes.
Claims (1)
1. helical gear upsetting molding jig, is made up 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 rotates die body, rotate die body rotatably to be arranged at lower die-sleeve inner chamber by lower planes bearing, rotate in the middle of die body and be provided with endoporus for fixing alloy core rod, alloy core rod is provided with helical gear upsetting molding chamber, die cavity epimere is straight hole, die cavity hypomere has the cylindrical helical teeth chamber identical with institute upsetting helical gear profile, and mold cavity bottoms communicates with rear logical push rod guide hole, is movably equipped with rear logical push rod in rear logical push rod guide hole; Helical gear cold-heading molding is initial, and the bottom surface of Upper Die-sleeve and the end face of alloy core rod are adjacent to, and the die cavity of alloy core rod forms enclosure space, 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 CN103447441A (en) | 2013-12-18 |
| CN103447441B true 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)
| Country | Link |
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| CN (1) | CN103447441B (en) |
Cited By (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 |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
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 (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103447441A (en) | 2013-12-18 |
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| C06 | Publication | ||
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| C14 | Grant of patent or utility model | ||
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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. |