CN100413614C - Back taper forming die for automobile transmission gear combination teeth - Google Patents
Back taper forming die for automobile transmission gear combination teeth Download PDFInfo
- Publication number
- CN100413614C CN100413614C CNB2006100389797A CN200610038979A CN100413614C CN 100413614 C CN100413614 C CN 100413614C CN B2006100389797 A CNB2006100389797 A CN B2006100389797A CN 200610038979 A CN200610038979 A CN 200610038979A CN 100413614 C CN100413614 C CN 100413614C
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- Prior art keywords
- tooth
- mould
- gland
- die
- base plate
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- 230000005540 biological transmission Effects 0.000 title abstract 2
- 210000004907 gland Anatomy 0.000 claims description 26
- 230000013011 mating Effects 0.000 claims description 3
- 238000005242 forging Methods 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 238000001125 extrusion Methods 0.000 abstract 1
- 238000010862 gear shaping Methods 0.000 abstract 1
- 210000000515 tooth Anatomy 0.000 description 74
- 238000000034 method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 206010055001 Hypodontia Diseases 0.000 description 1
- 206010002583 anodontia Diseases 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005213 hypodontia Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011020 pilot scale process Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 201000006680 tooth agenesis Diseases 0.000 description 1
Images
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- Gears, Cams (AREA)
Abstract
An automobile transmission gear combined tooth inverted cone forming die belongs to the technical field of metal pressure processing dies. Is characterized in that a combined tooth die is arranged in the annular pressing sleeve, the matching surface of the annular pressing sleeve and the combined tooth die is a conical surface, and the inclination alpha of the conical surface is 8-14 degrees; the tooth die is divided into single tooth blocks along the circumferential direction, axial teeth are arranged on the tooth blocks, and the tooth sides are inclined; the inner wall and the outer wall of the tooth die are respectively provided with a radial tension spring and a limiting ring, and a return spring and an adjusting pad are arranged below the pressing sleeve. The invention is used for the precision forging forming of the reverse cone of the combined tooth of the automobile speed changing gear, has simple structure, convenient operation and adjustment, low processing cost and high precision, can ensure the product quality, and has remarkable progress compared with the traditional combined tooth reverse cone gear shaping processing device and the existing extrusion die.
Description
Technical field
The present invention relates to a kind of precision forging mould of automobile variable speed Gear Processing mould, especially automobile variable speed gear combining tooth back taper.
Background technology
The various speed of running car are connected realization by change-speed gearing in the speed changer in conjunction with tooth with combined cover.Out of supply under steam in order to prevent automobile, usually need and will be designed to reversed cone angle in conjunction with tooth, promptly in conjunction with tooth in axial direction the outer end facewidth greater than the inner facewidth.Traditional all adopts the gear shapping machine cutting working method to realize in conjunction with the tooth reversed cone angle, low, the product low precision of this method production efficiency, and the expense of taking a lot of work again material, metal streamline is cut off, and makes in conjunction with tooth intensity obviously to reduce, and the broken teeth phenomenon happens occasionally in the use; And escape must be arranged, increased the axial dimension and the weight of speed changer, applicability is restricted.Advanced processing method is will be shaped in conjunction with tooth tooth portion blocking to adopt back taper forming mould moment on forcing press to finish back taper then to be shaped, but existing back taper forming mould complex structure, inconvenience, processing cost height are adjusted in operation.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art part, provides a kind of simple in structure, operates easy to adjustly, and processing cost is low, can guarantee the inverse conical forming mould for automobile gearbox gear combining tooth of product quality.
Technical scheme of the present invention is: inverse conical forming mould for automobile gearbox gear combining tooth is by circular gland, combined type tooth mould, the tensioner spring, spacing collar, back-moving spring, locating part, base plate constitutes, described combined type tooth mould is located at circular gland inside, both mating surfaces are the taper seat of lower end diameter greater than upper end diameter, tooth mold cavity upper port is a tooth portion, tooth portion is provided with axial tooth and teeth groove, the both sides of each tooth are gradient, the top facewidth is greater than the bottom facewidth, the face of cylinder, tooth top place and above-mentioned taper seat coaxial line, combined type tooth mould is along circumferentially being divided into single tooth piece, described tensioner spring and spacing collar be located at respectively combined type tooth mould in, outer wall, described back-moving spring and locating part are located between circular gland and the base plate.
Further scheme is: described taper seat gradient α=8 °～14 °; The tooth portion of each tooth piece is provided with a tooth or two teeth in the described combined type tooth mould; Described radially tensioner spring and spacing collar respectively have two, separate up and down, are located at respectively in the groove of the inside and outside wall of tooth mould; Described gland and tooth mould are placed on the base plate, and the locating part of gland below is the adjusting pad that is arranged on the base plate; Described gland and adjusting pad are loaded on the base plate by bolt sleeve.
This mould uses on forcing press, and the tooth portion of tooth mould accurately processes in conjunction with the tooth profile of tooth according to workpiece.During work,, coincide each other the tooth portion in conjunction with tooth insertion tooth mould of workpiece, under the press pressure effect, gland moves down, by gland inner conical surface extruding tooth mould male cone (strobilus masculinus), its radial component forces that each tooth piece moves inward in the tooth mould, thereby moment finishes in conjunction with the tooth back taper and is shaped.The gland inner conical surface is the consistent taper seat of tapering with tooth mould male cone (strobilus masculinus), and the gradient of this conical surface (be tapering half) α gets 8 °～14 °, has both guaranteed enough big radial component, locking phenomenon can not take place again.Spacing collar is used for keeping each tooth piece mutual alignment, and radially the tensioner spring then is that the tooth piece is finished the usefulness that resets after the shaping work.Spacing collar and tensioner spring respectively have two that separate up and down, can effectively guarantee the steadily flexible of tooth piece motion.In time reset after the back-moving spring of gland below makes the gland release, be convenient to the loading and unloading of workpiece, the gland below is provided with adjusting pad, adjusts the distance that gland presses down by changing its thickness, and then guarantees the back taper forming requirements.Gland and adjusting pad are loaded on the base plate by bolt sleeve, can keep the complete of mould, prevent that single-piece is scattered, and be easy to use.This mould structure is very simple, key component has only gland and tooth mould, the tooth mould is processed into single piece earlier, guarantee the axiality of tooth portion's machining accuracy and outside circle and male cone (strobilus masculinus) easily, radially cut from the center of teeth groove, make the tooth mould along circumferentially being divided into single tooth piece, processing cost is low, the precision height can guarantee product quality.This mould reaches designing requirement after the production pilot scale is used, improved the product precision, obtains good economic benefit.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 be among Fig. 1 K to partial schematic diagram.
The specific embodiment
Below in conjunction with accompanying drawing, further specify the embodiment of the invention.
Example one: circular gland 1 inside is provided with combined type tooth mould 2, both mating surfaces are taper seat, its gradient α=12 °, tooth mold cavity upper port is a tooth portion 4, tooth portion is provided with 21 axial tooths 9 and teeth groove, and each tooth both sides is gradient, and the top facewidth is greater than the bottom facewidth, be respectively equipped with radially tensioner spring 3 in the groove of twice up and down of tooth mould inwall, be respectively equipped with spacing collar 5 in the groove of twice up and down of tooth mould outer wall, the tooth mould has a tooth along circumferentially being divided into 21 impartial tooth pieces on each tooth piece.The gland below is provided with adjusting pad 7 and four uniform back-moving springs 6.Gland and adjusting pad are installed on the base plate 8 with bolt, and be gapped between gland and the bolt, also gapped between tooth mould and the adjusting pad.This mould is used to add the workpiece of Z=21 tooth.
Example two: for processing Z=48 tooth, the workpiece of three hypodontias is arranged, the tooth mould 2 of mould is divided into 48-3=45 tooth piece, wherein has three tooth pieces that two teeth are respectively arranged, and all the other tooth pieces respectively have a tooth, gland 1 and tooth mould 2 cooperates gradient α=8 ° of taper seats, and all the other architectural features are with example one.
Claims (6)
1. inverse conical forming mould for automobile gearbox gear combining tooth, it is characterized in that this mould is by circular gland, combined type tooth mould, the tensioner spring, spacing collar, back-moving spring, locating part, base plate constitutes, described combined type tooth mould is located at circular gland inside, both mating surfaces are the taper seat of lower end diameter greater than upper end diameter, tooth mold cavity upper port is a tooth portion, tooth portion is provided with axial tooth and teeth groove, the both sides of each tooth are gradient, the top facewidth is greater than the bottom facewidth, the face of cylinder, tooth top place and above-mentioned taper seat coaxial line, combined type tooth mould is along circumferentially being divided into single tooth piece, described tensioner spring and spacing collar be located at respectively combined type tooth mould in, outer wall, described back-moving spring and locating part are located between circular gland and the base plate.
2. by the described inverse conical forming mould for automobile gearbox gear combining tooth of claim 1, it is characterized in that described taper seat gradient α=8 °～14 °.
3. by the described inverse conical forming mould for automobile gearbox gear combining tooth of claim 1, it is characterized in that the tooth portion of each tooth piece in the described combined type tooth mould is provided with a tooth or two teeth.
4. by the described inverse conical forming mould for automobile gearbox gear combining tooth of claim 1, it is characterized in that described radially tensioner spring and spacing collar respectively have two, separate up and down, be located at respectively in the groove of the inside and outside wall of tooth mould.
5. by the described inverse conical forming mould for automobile gearbox gear combining tooth of claim 1, it is characterized in that described gland and tooth mould are placed on the base plate, the locating part of gland below is the adjusting pad that is arranged on the base plate.
6. by the described inverse conical forming mould for automobile gearbox gear combining tooth of claim 5, it is characterized in that described gland and adjusting pad are contained on the base plate by bolt sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100389797A CN100413614C (en) | 2006-03-22 | 2006-03-22 | Back taper forming die for automobile transmission gear combination teeth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100389797A CN100413614C (en) | 2006-03-22 | 2006-03-22 | Back taper forming die for automobile transmission gear combination teeth |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1820872A CN1820872A (en) | 2006-08-23 |
| CN100413614C true CN100413614C (en) | 2008-08-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100389797A Active CN100413614C (en) | 2006-03-22 | 2006-03-22 | Back taper forming die for automobile transmission gear combination teeth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100413614C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101827667B (en) * | 2007-10-17 | 2012-03-14 | Gkn烧结金属股份有限公司 | Core rod forging for precise internal geometry |
| CN102151995B (en) * | 2011-03-28 | 2015-09-16 | 中国第一汽车集团公司 | Method for closing laser welded seam of auto transmission gear |
| CN107335768B (en) * | 2016-12-19 | 2019-04-12 | 江苏太平洋齿轮传动有限公司 | The small gear ring radial direction wedge pressure mould of combination gear |
| CN106862395B (en) * | 2017-04-28 | 2019-01-22 | 重庆创精温锻成型有限公司 | Deep slot type conjunction gear composite forming die |
| CN107096866B (en) * | 2017-04-28 | 2019-01-22 | 重庆创精温锻成型有限公司 | Hybrid vehicle automatic transmission deep slot type conjunction gear preparation method |
| CN107030132B (en) * | 2017-05-05 | 2019-01-25 | 盐城工学院 | Gear forming tool and gear forming system |
| CN107497985B (en) * | 2017-09-30 | 2019-08-06 | 江苏太平洋精锻科技股份有限公司 | Automobile gearbox gear combining tooth finish forge composable mold and its finish forging process |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0751788A (en) * | 1993-08-11 | 1995-02-28 | Aida Eng Ltd | Plastic working method for gear or gear-like material |
| CN1139027A (en) * | 1995-06-26 | 1997-01-01 | 会田工程株式会社 | Plastic working method of gear-type parts |
| JP2003154434A (en) * | 2001-11-20 | 2003-05-27 | Ooka Giken Kk | Speed change gear with dog clutch pawl and method of manufacturing speed change gear with dog clutch pawl |
| JP2003245746A (en) * | 2002-02-22 | 2003-09-02 | Cleartec:Kk | Cold forging device for crown gear |
| CN1644267A (en) * | 2004-12-20 | 2005-07-27 | 华中科技大学 | Special hydraulic mould stand |
| CN2897493Y (en) * | 2006-03-22 | 2007-05-09 | 江苏太平洋精密锻造有限公司 | Back taper forming die for automobile transmission gear combination teeth |
-
2006
- 2006-03-22 CN CNB2006100389797A patent/CN100413614C/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0751788A (en) * | 1993-08-11 | 1995-02-28 | Aida Eng Ltd | Plastic working method for gear or gear-like material |
| CN1139027A (en) * | 1995-06-26 | 1997-01-01 | 会田工程株式会社 | Plastic working method of gear-type parts |
| JP2003154434A (en) * | 2001-11-20 | 2003-05-27 | Ooka Giken Kk | Speed change gear with dog clutch pawl and method of manufacturing speed change gear with dog clutch pawl |
| JP2003245746A (en) * | 2002-02-22 | 2003-09-02 | Cleartec:Kk | Cold forging device for crown gear |
| CN1644267A (en) * | 2004-12-20 | 2005-07-27 | 华中科技大学 | Special hydraulic mould stand |
| CN2897493Y (en) * | 2006-03-22 | 2007-05-09 | 江苏太平洋精密锻造有限公司 | Back taper forming die for automobile transmission gear combination teeth |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1820872A (en) | 2006-08-23 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JIANGSU PACIFIC PRECISION FORGING SCIENCE AND TECH Free format text: FORMER NAME: JIANGSU PACIFIC PRECISION FORGING CO., LTD. |
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| CP03 | Change of name, title or address |
Address after: 225500 No. 91, Jiangyan Avenue, Jiangyan, Jiangsu Patentee after: Jiangsu Pacific Precision Forging Co., Ltd. Address before: 225500 Jiangyan Economic Development Zone, Jiangsu Patentee before: Taipingyang Precision Forging Co., Ltd., Jiangsu |