CN107186450B - Automobile CVT automatic transmission planet carrier board manufacturing process - Google Patents
Automobile CVT automatic transmission planet carrier board manufacturing process Download PDFInfo
- Publication number
- CN107186450B CN107186450B CN201710472098.4A CN201710472098A CN107186450B CN 107186450 B CN107186450 B CN 107186450B CN 201710472098 A CN201710472098 A CN 201710472098A CN 107186450 B CN107186450 B CN 107186450B
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- China
- Prior art keywords
- circular slab
- planet carrier
- blank
- manufacturing process
- automatic transmission
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/14—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass gear parts, e.g. gear wheels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/08—General details of gearing of gearings with members having orbital motion
- F16H57/082—Planet carriers
Abstract
The invention discloses a kind of automobile CVT automatic transmission planet carrier board manufacturing process, include the following steps: 1. blanking；2. base before warm forging；3. ball blast；4. warm forging extrusion molding: by blank heating to 210 DEG C of ± 20 DEG C of coating graphite, it then proceedes to be heated to 820 DEG C -860 DEG C, first jumping-up extruding, again backward extrusion form circular slab and are formed in circular slab circumferential edges to the vertically extending quoit in side, be then punched the centre bore of circular slab；5. residual heat annealing；6. base, ball blast after warm forging；7. lubricated；8. cold forging extrusion molding external tooth: the blank that lubricated is finished is put into cavity plate, and cold extrusion forms outer gear ring；9. nitrogen treatment: surface the efficient oxidation layer depth 0.007-0.3mm.The manufacturing process technology route is reasonable, and metal stream is not cut off, and product Gear Surface Strength is high, saves raw material, high production efficiency.
Description
Technical field
The invention belongs to forging and molding technical fields, and in particular to a kind of CVT automatic transmission planet carrier board Wen Lengfu
It closes to forge and squeezes forming technology.
Background technique
Planet carrier board is to act as fixed and transmission effect, bottom plate end face in automatic gearbox to connect with planet carrier,
External tooth plays transmission effect, general at present to be swaged into gear blank using hot forging process, then general cutting technology used to carry out
Gear Shaping produces, and shortcoming is that machining production efficiency is low, is suitable only for single-piece or small lot production application,
Secondary is to shape the flank of tooth using cutting technology, although batch production can be easily formed, Gear Shaping equipment investment
Greatly, production efficiency is low, wastes raw material, and at high cost, metal streamline is cut off, and Gear Surface Strength is low, is easy to appear tooth damage and hangs not
The phenomenon that performing.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of cold compound forgings of temperature to be extruded into shape, then a small amount of machining
Planet carrier board technique is manufactured, the manufacturing process technology route is reasonable, and metal stream is not cut off, and product Gear Surface Strength is high, saves
Raw material, high production efficiency.
The present invention is achieved by the following technical solution:
Automobile CVT automatic transmission planet carrier board manufacturing process, the automatic gearbox planet carrier board packet
It includes circular slab and is located at circular slab circumferential edges to the vertically extending outer gear ring in side, be provided with centre bore on circular slab；It is made
It makes technique and includes the following steps: 1. blanking: is long needed for intercepting by the metal bar of product design figure requirement selection respective diameters
Degree；2. base before warm forging: peeling chamfering removes surface defect；3. ball blast: blank is put into blasting treatment in crawler type shot-blasting machine；
4. warm forging extrusion molding: by blank heating to 210 DEG C of ± 20 DEG C of coating graphite, then proceeding to be heated to 820 DEG C -860 DEG C, first upsetting
Thick extruding, again backward extrusion form circular slab and are formed in circular slab circumferential edges to the vertically extending quoit in side,
Then it is punched the centre bore of circular slab；5. residual heat annealing: blank is immediately fed into annealing furnace progress waste heat and moves back after warm forging extrusion molding
Fire；6. base, ball blast after warm forging；7. lubricated: blank surface carries out surface lubrication processing after removing oxide, squeezes for cold forging
It shapes external tooth and lubricating condition is provided；8. cold forging extrusion molding external tooth: the blank that lubricated is finished is put into cavity plate, cold extrusion
Form outer gear ring；9. nitrogen treatment: surface the efficient oxidation layer depth 0.007-0.3mm.
Planet carrier bracket holes, gear hole and location hole, the planet carrier bracket holes, tooth are provided on the circular slab
Wheel bore and location hole are formed by machining, and machining step is arranged before nitridation process step.
The present invention squeezes manufacturing process using cold compound forge of temperature, the main cylindrical shape base that bottom is had by warm forging forming
Then material carries out cold forging extrusion molding external tooth, then carries out a small amount of machining, the manufacturing process technology route is reasonable, metal stream
It is not cut off, product Gear Surface Strength is high, saves raw material, high production efficiency.
Compared with prior art, the present invention has the following advantages:
1, the present invention is due to warm forging, jumping-up, backward extrusion, bottom centre's punching and cold forging extrusion forming external tooth
Single-station substep carries out, and the mold carrying pressure configured is small, and press tonnage is equally small, to reduce the throwing of forging equipment
Enter.
2, the present invention due to manufacturing process route it is reasonable, blank shape needed for warm forging extrusion molding before this, then cold forging squeezes
Disposable forming external tooth, is all to complete in press machine moment, then carries out a small amount of machining, every procedure all compares
Convenient, high production efficiency is at low cost.
3, the present invention squeezes disposably forming external tooth, metal streamline due to the cold compound forging of temperature and is not destroyed, and consistency is good, matter
Amount is stablized, and tooth accuracy is good, and intensity index is high, and the Technology design that can satisfy automatic gearbox pinion frame board is wanted
It asks.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of automatic gearbox planet carrier board in the embodiment of the present invention；
Fig. 2 is Fig. 1 left view；
Fig. 3 is blank deformation process flow chart of the embodiment of the present invention.
Serial number in figure: 1, circular slab, 2, outer gear ring, 3, centre bore, 4, planet carrier bracket holes, 5, gear hole, 6, location hole.
Specific embodiment
The technical solutions of the present invention will be further described by way of example and in conjunction with the accompanying drawings.
Embodiment: shown in Figure 1, a kind of automobile CVT automatic transmission planet carrier board includes circular slab 1 and is located at circle
Shape plate circumferential edges are provided with centre bore 3, planet carrier bracket holes 4, gear on circular slab 1 to the vertically extending outer gear ring 2 in side
Hole 5 and location hole 6.Shown in Figure 3, automobile CVT automatic transmission planet carrier board manufacturing process includes the following steps: one
It is blanking: selection 20# rod iron material, according to forging stock size, length needed for being intercepted with circular saw；Second is that base before warm forging: lathe
It processes peeling and removes blank surface defect；Third is that ball blast: blank being placed blasting treatment in Caterpillar type shot blasting machine, is reduced outside blank
Surface roughness Ra value coats graphite raising adhesive force for next step outer surface and provides condition；Fourth is that warm forging extrusion molding: by base
Material is heated to 210 DEG C of ± 20 DEG C of applying liquid aquadags, then proceedes to be heated to 820 DEG C -860 DEG C, first jumping-up squeezes, is anti-crowded again
Pressing formation forms circular slab 1 and is formed in circular slab circumferential edges to the vertically extending quoit in side, and then punching is round
The centre bore 3 of plate；Fifth is that residual heat annealing: blank places residual heat annealing furnace immediately and carries out residual heat annealing processing after warm forging is squeezed,
It does not need to reheat annealing again；Sixth is that base after warm forging: carrying out general Vehicle Processing by figure；Seventh is that ball blast: surface carries out
Shot Blasting reduces roughness Ra value；Eighth is that lubricated: after blank surface removes oxide, being lubricated using Liquid polymeric
Agent is lubricated processing to outer surface, is extruded into shape external tooth for cold forging and provides lubricating condition；Ninth is that cold forging extrusion molding external tooth: will moisten
The sliding blank being disposed is put into cavity plate, under normal temperature conditions disposable cold forging extrusion molding quoit external tooth, forms external tooth
Circle 2, the flank of tooth after formation does not need machining again；Tenth is that machining: carrying out machinery by layout design technical requirements and cut
Processing is cut, planet carrier bracket holes 4, gear hole 5 and location hole 6 are formed；Ten first is that nitrogen treatment: the planetary gear after machining
Frame board carries out nitrogen treatment, and surface the efficient oxidation layer depth 0.007-0.3mm improves product strength.
Embodiment does not constitute the limit to the scope of the present invention only to facilitate understand technical solution of the present invention
System, anything that does not depart from the technical scheme of the invention or according to the technical essence of the invention to any letter made by above scheme
Single modification, equivalent variations and modification, still fall within the scope of the present invention.
Claims (2)
1. automobile CVT automatic transmission planet carrier board manufacturing process, the automobile CVT automatic transmission planet carrier board packet
Include circular slab (1) and be located at circular slab circumferential edges to the vertically extending outer gear ring in side (2), circular slab (1) on be provided with centre bore
⑶；Its manufacturing process includes the following steps: 1. blanking: by the metal bar of product design figure requirement selection respective diameters, interception
Required length；2. base before warm forging: peeling chamfering removes surface defect；3. ball blast: blank being put into crawler type shot-blasting machine and is sprayed
Sand processing；4. warm forging extrusion molding: by blank heating to 210 DEG C of ± 20 DEG C of applying liquid aquadags, then proceeding to be heated to 820
DEG C -860 DEG C, first jumping-up squeezes, backward extrusion again, forms circular slab and is formed in circular slab circumferential edges vertical to side
Then (3) the quoit of extension is punched the centre bore of circular slab；5. residual heat annealing: blank, which is immediately fed into, after warm forging extrusion molding moves back
Stove carries out residual heat annealing；6. base, ball blast after warm forging；7. lubricated: blank surface carries out surface profit after removing oxide
Sliding processing, is extruded into shape external tooth for cold forging and provides lubricating condition；8. cold forging extrusion molding external tooth: the blank that lubricated is finished is put
Enter in cavity plate, (2) cold extrusion forms outer gear ring；9. nitrogen treatment: surface the efficient oxidation layer depth 0.007-0.3mm.
2. automobile CVT automatic transmission planet carrier board manufacturing process according to claim 1, it is characterised in that: described
Circular slab (1) on be provided with planet carrier bracket holes (4), gear hole (5) with location hole (6), the planet carrier bracket holes (4), gear
(5) (6) hole is formed with location hole by machining, machining step is arranged before nitridation process step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710472098.4A CN107186450B (en) | 2017-06-20 | 2017-06-20 | Automobile CVT automatic transmission planet carrier board manufacturing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710472098.4A CN107186450B (en) | 2017-06-20 | 2017-06-20 | Automobile CVT automatic transmission planet carrier board manufacturing process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107186450A CN107186450A (en) | 2017-09-22 |
| CN107186450B true CN107186450B (en) | 2019-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710472098.4A Active CN107186450B (en) | 2017-06-20 | 2017-06-20 | Automobile CVT automatic transmission planet carrier board manufacturing process |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108124400A (en) * | 2017-12-17 | 2018-06-05 | 江苏威鹰机械有限公司 | New-energy automobile electric-control system bearing plate and its manufacturing process |
| CN108127356A (en) * | 2017-12-17 | 2018-06-08 | 江苏威鹰机械有限公司 | Auto gearbox 7DCT ratchets and its manufacturing process |
| CN108161373A (en) * | 2018-02-08 | 2018-06-15 | 江苏威鹰机械有限公司 | A kind of automatic gearbox of vehicles tooth set and its manufacturing process |
| CN109433985B (en) * | 2018-11-01 | 2020-04-21 | 郑州机械研究所有限公司 | Multidirectional numerical control linkage precision forming process for planet carrier of transmission |
| CN110695629A (en) * | 2019-11-22 | 2020-01-17 | 安徽一飞重工有限公司 | Forming processing method of vehicle body frame |
| CN113941678B (en) * | 2020-07-15 | 2023-09-12 | 安徽弈华重工科技股份有限公司 | Forging process for hub sleeve warm forging and cold extrusion and die thereof |
| CN112958737A (en) * | 2021-03-23 | 2021-06-15 | 江苏威鹰机械有限公司 | New energy car planet carrier forging and production process thereof |
Citations (6)
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|---|---|---|---|---|
| US4043021A (en) * | 1975-01-29 | 1977-08-23 | Zahnradfabrik Friedrichshafen Aktiengesellschaft | Process for making sheet-metal planet carrier |
| CN1405469A (en) * | 2001-09-13 | 2003-03-26 | 住友重机械工业株式会社 | Outer gear manufacture method |
| US6863636B2 (en) * | 2002-03-05 | 2005-03-08 | Metal Forming & Coining Corporation | Pinion carrier for planetary gear train and method of making same |
| CN101049666A (en) * | 2006-04-06 | 2007-10-10 | 通用汽车环球科技运作公司 | Method and apparatus for a carrier spider |
| CN102179669A (en) * | 2011-03-29 | 2011-09-14 | 天津天重车轴制造有限公司 | Process for forging planet carrier |
| DE102012208796A1 (en) * | 2012-05-25 | 2013-11-28 | Schaeffler Technologies AG & Co. KG | Gear combination for drive train of motor vehicle, such as passenger car, has central part planetary carrier present between two outer part planetary carriers and has bent bar which plugs in hole of one of two outer part planetary carriers |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5401519B2 (en) * | 2010-11-18 | 2014-01-29 | ジヤトコ株式会社 | Carrier and manufacturing method thereof |
-
2017
- 2017-06-20 CN CN201710472098.4A patent/CN107186450B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4043021A (en) * | 1975-01-29 | 1977-08-23 | Zahnradfabrik Friedrichshafen Aktiengesellschaft | Process for making sheet-metal planet carrier |
| CN1405469A (en) * | 2001-09-13 | 2003-03-26 | 住友重机械工业株式会社 | Outer gear manufacture method |
| US6863636B2 (en) * | 2002-03-05 | 2005-03-08 | Metal Forming & Coining Corporation | Pinion carrier for planetary gear train and method of making same |
| CN101049666A (en) * | 2006-04-06 | 2007-10-10 | 通用汽车环球科技运作公司 | Method and apparatus for a carrier spider |
| CN102179669A (en) * | 2011-03-29 | 2011-09-14 | 天津天重车轴制造有限公司 | Process for forging planet carrier |
| DE102012208796A1 (en) * | 2012-05-25 | 2013-11-28 | Schaeffler Technologies AG & Co. KG | Gear combination for drive train of motor vehicle, such as passenger car, has central part planetary carrier present between two outer part planetary carriers and has bent bar which plugs in hole of one of two outer part planetary carriers |
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| CN107186450A (en) | 2017-09-22 |
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Denomination of invention: Manufacturing technology of planet carrier bearing plate for automobile CVT automatic transmission Effective date of registration: 20211228 Granted publication date: 20190201 Pledgee: Jiangsu Xinghua Rural Commercial Bank Co.,Ltd. Pledgor: JIANGSU WINNER MACHINERY Co.,Ltd. Registration number: Y2021320000424 |