CN110355428A - A kind of enhanced gear core shaft structure of rigidity - Google Patents
A kind of enhanced gear core shaft structure of rigidity Download PDFInfo
- Publication number
- CN110355428A CN110355428A CN201910622745.4A CN201910622745A CN110355428A CN 110355428 A CN110355428 A CN 110355428A CN 201910622745 A CN201910622745 A CN 201910622745A CN 110355428 A CN110355428 A CN 110355428A
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- CN
- China
- Prior art keywords
- gear
- diameter
- mandrel
- machined
- core shaft
- Prior art date
- 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.)
- Pending
Links
- 210000003781 tooth socket Anatomy 0.000 claims abstract description 17
- 238000003754 machining Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 230000003746 surface roughness Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F23/00—Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines
- B23F23/02—Loading, unloading or chucking arrangements for workpieces
- B23F23/06—Chucking arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gears, Cams (AREA)
Abstract
The invention belongs to gear machining technology fields, are related to a kind of enhanced gear core shaft structure of rigidity.The mandrel (1) is machined with the shaft shoulder, and shaft shoulder side diameter is greater than gear internal diameter, and other side diameter is less than gear internal diameter；The structure further includes top (3) and nut (4), the conical surface is machined on top (3), top (3) are sleeved on diameter less than on the mandrel of gear internal diameter side, and nut (4), which is connected through a screw thread, is pressed on the conical surface of top (3) on fillet of gear end face；Diameter is greater than the tooth socket (11) being machined on the mandrel (1) of gear internal diameter side corresponding to gear.A kind of Gear Processing tooling is provided, gear electric shock is reduced, improves Gear Processing precision.
Description
Technical field
The invention belongs to gear machining technology fields, are related to a kind of enhanced gear core shaft structure of rigidity.
Background technique
Certain type carousel gear transverse tooth thickness is thin, modulus is big, and inner hole is smaller, and 4 grades of teeth portion required precision.This type gear is frequently with auxiliary
Mandrel is processed, and the rigidity of mandrel is limited often weaker, stress generation electric shock in process, direct shadow by inner bore of part
Part teeth portion precision and surface roughness are rung, not can guarantee requirement on machining accuracy.
Summary of the invention
Present invention solves the technical problem that: a kind of Gear Processing tooling is provided, gear electric shock is reduced, improves Gear Processing
Precision.
Technical solution of the present invention: a kind of enhanced gear core shaft structure of rigidity, the mandrel are machined with the shaft shoulder, the shaft shoulder
Side diameter is greater than gear internal diameter, and other side diameter is less than gear internal diameter；The structure further includes top and nut, it is top on
It is machined with the conical surface, on the mandrel that diameter is less than gear internal diameter side, nut is connected through a screw thread top cone center sleeve
Face is pressed on fillet of gear end face；Diameter is greater than the tooth socket being machined on the mandrel of gear internal diameter side corresponding to gear.It should
Technical solution compared with prior art, increases the diameter of mandrel side, and tooling integral strength increases, and improves the steady of Gear Processing
Qualitative and precision.Meanwhile the technical solution has rationally designed the structure for increasing rear mandrel, meets the needs of Gear Processing.
Preferably, the part of tooth socket is machined on mandrel, outer surface is tapered surface.On the one hand structure design increases
The rigidity of mandrel reduces tooling quality on the other hand under the premise of meeting rigidity requirement to greatest extent.
Preferably, the space width is greater than gear tooth slot width, it is therefore prevented that installation error causes wheel grinding to the heart
Shaft.
Preferably, the width of tooth socket is greater than the width 1mm or more of gear tooth slot.The present solution provides a kind of choosings of size
It selects, ensure that the cheap property of the processing of gear to greatest extent.
Preferably, the end face maximum outside diameter of tooth socket is less than addendum circle diameter of gear.The technical solution, avoids mandrel and sand
Take turns root interference.
Detailed description of the invention
Fig. 1 is using state structure diagram of the present invention.
Specific embodiment
As shown in Figure 1, the structure includes mandrel 1, mandrel 1 includes two parts, stepped, is provided with the shaft shoulder.Axis
The side of shoulder, the diameter of central spindle 1 are less than circular diameter in master gear 2, and the diameter of the other side, central spindle 1 is greater than the interior of master gear 2
Circular diameter.When the gear blank for being machined with inner circle is mounted on mandrel 1, an end face is adjacent on the shaft shoulder.
In addition, the structure further includes top 3 and nut 4, top 3 are provided with through-hole along axial direction, and outer circumference surface is the conical surface,
It can be sleeved on mandrel.It is also threaded on mandrel 1, for the cooperation with nut 4.When installation, gear blank part one end
End face is adjacent on the shaft shoulder, other end inner circle end face nut 4 it is tight under, by top 3 periphery compress.
In order to meet process requirements, need in the larger one end processing tooth socket 11 of axle diameter, tooth socket 11 needs and full-height tooth
The tooth socket of wheel corresponds, and in order to avoid installation error causes process equipment to interfere with mandrel rod, by tooth socket 11
Width design is the width greater than master gear tooth socket, at least wants big 1mm.End face outer diameter is less than gear teeth above mandrel rod tooth socket
1 ± 0.2mm of outside diameter circle avoids interfering with grinding wheel root.Meanwhile the mandrel outer surface for being machined with tooth socket 11 is processed into cone
The bottom in face, centrum is located at the shaft shoulder, i.e., will be retained at maximum intensity apart from gear blank part most nearby, meets processing intensity
It is required that while, also mitigate the quality of tooling.
The technical program can effectively improve the rigidity of mandrel used in such Gear Processing, during reducing Gear Processing
Electric shock improves gear tooth precision and surface roughness.In addition, mandrel can expand the working ability of lathe process equipment, keep away
Exempt to customize grinding head dedicated, specific purpose tool, can be to avoid unnecessary waste.
Claims (6)
1. a kind of enhanced gear core shaft structure of rigidity, it is characterized in that: the mandrel (1) is machined with the shaft shoulder, and shaft shoulder side is straight
Diameter is greater than gear internal diameter, and other side diameter is less than gear internal diameter；
The structure further includes top (3) and nut (4), the conical surface is machined on top (3), it is small that top (3) are sleeved on diameter
The conical surface of top (3) is pressed on fillet of gear end face on the mandrel of gear internal diameter side, nut (4) is connected through a screw thread
On.
2. the enhanced gear core shaft structure of a kind of rigidity according to claim 1, it is characterized in that: diameter is greater than gear internal diameter
The tooth socket (11) corresponding to gear is machined on the mandrel (1) of side.
3. the enhanced gear core shaft structure of a kind of rigidity according to claim 1, it is characterized in that: mandrel is machined on (1)
The part of tooth socket (11), outer surface are tapered surface.
4. the enhanced gear core shaft structure of a kind of rigidity according to claim 1, it is characterized in that: the tooth socket (11) is wide
Degree is greater than gear tooth slot width.
5. the enhanced gear core shaft structure of a kind of rigidity according to claim 3, it is characterized in that: the width of tooth socket (11) is big
In the width 1mm or more of gear tooth slot.
6. the enhanced gear core shaft structure of a kind of rigidity according to claim 1, it is characterized in that: the end face of tooth socket (11) is most
Big outer diameter is less than addendum circle diameter of gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910622745.4A CN110355428A (en) | 2019-07-09 | 2019-07-09 | A kind of enhanced gear core shaft structure of rigidity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910622745.4A CN110355428A (en) | 2019-07-09 | 2019-07-09 | A kind of enhanced gear core shaft structure of rigidity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110355428A true CN110355428A (en) | 2019-10-22 |
Family
ID=68218699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910622745.4A Pending CN110355428A (en) | 2019-07-09 | 2019-07-09 | A kind of enhanced gear core shaft structure of rigidity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110355428A (en) |
Citations (15)
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|---|---|---|---|---|
| CN201346651Y (en) * | 2008-12-11 | 2009-11-18 | 天津市正平机械新技术有限公司 | Work piece through hole fastening and positioning device |
| WO2013170475A1 (en) * | 2012-05-18 | 2013-11-21 | 浙江联宜电机股份有限公司 | Expanding and tightening clamping tool |
| CN203356773U (en) * | 2013-07-21 | 2013-12-25 | 泰州市里华机械有限公司 | Driven gear shaving fixture |
| CN103639537A (en) * | 2013-11-19 | 2014-03-19 | 重庆市星极齿轮有限责任公司 | Tooth grinding tool for machining transmission shaft of automatic transmission |
| CN103737123A (en) * | 2013-12-27 | 2014-04-23 | 柳州正菱集团有限公司 | Gear shaving tool |
| CN104227059A (en) * | 2014-10-15 | 2014-12-24 | 重庆市德顺汽车部件制造有限公司 | Groove turning clamp for synchronizer gear sleeve |
| CN204234909U (en) * | 2014-10-30 | 2015-04-01 | 周卫荣 | A kind of band shoulder cylinder shaving dabber clamp |
| CN204248130U (en) * | 2014-11-16 | 2015-04-08 | 重庆市星极齿轮有限责任公司 | A kind of Fixture for Gear-shaving |
| CN104907640A (en) * | 2014-03-14 | 2015-09-16 | 泰州市里华机械有限公司 | Gear-hobbing central spindle |
| CN205254276U (en) * | 2016-01-05 | 2016-05-25 | 株洲齿轮有限责任公司 | Gapless positioning fixture of awl in hollow shaft class work piece |
| CN206216035U (en) * | 2016-10-09 | 2017-06-06 | 江麓机电集团有限公司 | A kind of radial positioning fixture |
| CN206425911U (en) * | 2016-12-14 | 2017-08-22 | 济南第一机床有限公司 | The special mandrel tool of high-precision numerical control machine main shaft fine cylindrical |
| CN206732291U (en) * | 2017-04-20 | 2017-12-12 | 江苏汇九齿轮有限公司 | A kind of gear grinding clamp |
| CN207414513U (en) * | 2017-11-15 | 2018-05-29 | 巴中渝翔机械制造有限公司 | A kind of grinding core degree frock clamp |
| CN211331650U (en) * | 2019-07-09 | 2020-08-25 | 中国航发哈尔滨东安发动机有限公司 | Rigidity-enhanced gear mandrel structure |
-
2019
- 2019-07-09 CN CN201910622745.4A patent/CN110355428A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201346651Y (en) * | 2008-12-11 | 2009-11-18 | 天津市正平机械新技术有限公司 | Work piece through hole fastening and positioning device |
| WO2013170475A1 (en) * | 2012-05-18 | 2013-11-21 | 浙江联宜电机股份有限公司 | Expanding and tightening clamping tool |
| CN203356773U (en) * | 2013-07-21 | 2013-12-25 | 泰州市里华机械有限公司 | Driven gear shaving fixture |
| CN103639537A (en) * | 2013-11-19 | 2014-03-19 | 重庆市星极齿轮有限责任公司 | Tooth grinding tool for machining transmission shaft of automatic transmission |
| CN103737123A (en) * | 2013-12-27 | 2014-04-23 | 柳州正菱集团有限公司 | Gear shaving tool |
| CN104907640A (en) * | 2014-03-14 | 2015-09-16 | 泰州市里华机械有限公司 | Gear-hobbing central spindle |
| CN104227059A (en) * | 2014-10-15 | 2014-12-24 | 重庆市德顺汽车部件制造有限公司 | Groove turning clamp for synchronizer gear sleeve |
| CN204234909U (en) * | 2014-10-30 | 2015-04-01 | 周卫荣 | A kind of band shoulder cylinder shaving dabber clamp |
| CN204248130U (en) * | 2014-11-16 | 2015-04-08 | 重庆市星极齿轮有限责任公司 | A kind of Fixture for Gear-shaving |
| CN205254276U (en) * | 2016-01-05 | 2016-05-25 | 株洲齿轮有限责任公司 | Gapless positioning fixture of awl in hollow shaft class work piece |
| CN206216035U (en) * | 2016-10-09 | 2017-06-06 | 江麓机电集团有限公司 | A kind of radial positioning fixture |
| CN206425911U (en) * | 2016-12-14 | 2017-08-22 | 济南第一机床有限公司 | The special mandrel tool of high-precision numerical control machine main shaft fine cylindrical |
| CN206732291U (en) * | 2017-04-20 | 2017-12-12 | 江苏汇九齿轮有限公司 | A kind of gear grinding clamp |
| CN207414513U (en) * | 2017-11-15 | 2018-05-29 | 巴中渝翔机械制造有限公司 | A kind of grinding core degree frock clamp |
| CN211331650U (en) * | 2019-07-09 | 2020-08-25 | 中国航发哈尔滨东安发动机有限公司 | Rigidity-enhanced gear mandrel structure |
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