CN106964849A - The processing method of contour spiral bevel gear tooth top chamfered edge - Google Patents
The processing method of contour spiral bevel gear tooth top chamfered edge Download PDFInfo
- Publication number
- CN106964849A CN106964849A CN201710269189.8A CN201710269189A CN106964849A CN 106964849 A CN106964849 A CN 106964849A CN 201710269189 A CN201710269189 A CN 201710269189A CN 106964849 A CN106964849 A CN 106964849A
- Authority
- CN
- China
- Prior art keywords
- chamfered edge
- tooth top
- tool section
- processing method
- salient angle
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F19/00—Finishing gear teeth by other tools than those used for manufacturing gear teeth
- B23F19/10—Chamfering the end edges of gear teeth
- B23F19/102—Chamfering the end edges of gear teeth by milling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F21/00—Tools specially adapted for use in machines for manufacturing gear teeth
- B23F21/12—Milling tools
- B23F21/14—Profile cutters of disc type
- B23F21/143—Profile cutters of disc type with inserted cutting elements
-
- 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
- B23F23/12—Other devices, e.g. tool holders; Checking devices for controlling workpieces in machines for manufacturing gear teeth
-
- 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
- B23F23/12—Other devices, e.g. tool holders; Checking devices for controlling workpieces in machines for manufacturing gear teeth
- B23F23/1237—Tool holders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
- B24B3/02—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of milling cutters
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear Processing (AREA)
Abstract
The present invention relates to a kind of processing method of contour helical gear tooth top chamfered edge, comprise the following steps：Tool section shape is designed, design parameter is selected；Whetted a knife according to design parameter；Sharpening accuracy detection is carried out to the tool section after milled；Tool section after detection is combined into cutter on cutterhead, and detected again；Cutterhead is installed on tooth milling machine；On tooth milling machine by gear workpieces clamping in place after, while calling mill teeth program to carry out mill teeth, accurate chamfered edge tip relief is carried out to tooth top and handled.Stress concentration of the gear in engagement process is advantageously reduced using the present invention, the transmission stability of product is improved, noise is reduced, extends the life-span of product.
Description
Technical field
The present invention relates to gear mechanism processing technique field, more particularly to a kind of processing side of contour helical gear tooth top chamfered edge
Method.
Background technology
Bevel gear is the complicated engine in the fields such as automobile, tractor, engineering machinery, navigation, Aeronautics and Astronautics, oil, metallurgy
Widely used key components and parts on tool, its accuracy of manufacture and quality directly affect transmission efficiency, noise, the kinematic accuracy of equipment
With the performance of service life.The purpose that bevel gear teeth jacking row chamfered edge is processed is by removing along the point on tooth length direction
Angle, to reduce stress concentration of the gear in engagement process, improves smoothness of operation of the product after stand under load, reduces noise, prolong
Long life.And existing chamfered edge processing method is after the completion for the treatment of mill teeth, then manually hand-held pneumatic grinder carries out grinding process,
Not only labor intensity is big, efficiency is low, cost is high, and chamfered edge precision is low, quality can not more ensure.Therefore, it is new using one kind
Can improve crudy and the tooth top chamfered edge processing method of efficiency has become a kind of inevitable trend.
The content of the invention
It is an object of the invention to overcome drawbacks described above, there is provided a kind of production efficiency height, the guaranteed collection milling of product quality
The contour helical gear tooth top chamfered edge processing method that tooth process and chamfering process unite two into one.
In order to solve the above technical problems, the present invention is adopted the following technical scheme that：A kind of contour helical gear tooth top chamfered edge
Processing method, comprises the following steps：Tool section shape is designed, design parameter is selected；Whetted a knife according to design parameter；After milled
Tool section carry out sharpening accuracy detection；Tool section after detection is combined into cutter on cutterhead, and detected again；By cutterhead
It is installed on tooth milling machine；On tooth milling machine by gear workpieces clamping in place after, call mill teeth program carry out mill teeth while, it is right
Tooth top carries out accurate chamfered edge tip relief processing.
Preferably, design tool section is shaped as increasing salient angle in the main cutting face root of tool section.
Preferably, the design parameter of salient angle is salient angle angle and salient angle height, and salient angle height is according to gear
The diameter and modulus of workpiece is chosen.
Preferably, salient angle angle [alpha] is 30 °, and salient angle height K is 0.5 ~ 1.0mm.
Preferably, in above-mentioned two detecting step, essence is carried out to be ground tool section by special inspecting equipment
Really control.
Present method invention synchronously realizes contour helical gear tooth top by changing tool section geometry during mill teeth
Accurate chamfered edge tip relief, advantageously reduces stress concentration of the gear in engagement process, improves the transmission stability of product, and reduction is made an uproar
Sound, extends the life-span of product.
Brief description of the drawings
Fig. 1 is the Gear Milling Forming Theory figure of contour helical gear.
Fig. 2 is without the common tool section structural representation of salient angle.
Fig. 3 is band salient angle tool section structural representation.
Fig. 4 is tool section salient angle position view.
Fig. 5 is chamfered edge design sketch.
In figure：1- tool sections, 2- gears, H- tool sections grinding height, h- gear fully teeth heights, K- salient angles height, α-salient angle angle.
Embodiment
The embodiment to the present invention is described further below in conjunction with the accompanying drawings.
The processing method of contour helical gear tooth top chamfered edge can be carried out by following six big steps：
The first step, designs tool section shape, selects design parameter.
1. according to customer requirement design gear product parameters；
The characteristics of equal-depth teeth be gear big end and small end tooth height it is equal, the long curve of tooth be prolate epicycloid a part, and
Space width and tooth top width are to shrink, and big end tooth groove width and tooth top width are slightly wider than small end, generally face cone, root cone and section
Cone is parallel（As shown in Figure 1）.
The design of equal-depth teeth gear geometry parameter is that on the basis of Mean normal module Mn, its calculation formula is Mn=D1*cos
（β1）/Z1 =D2*cos（β2）In/Z2, formula：Based on D1, D2, driven wheel of differential midpoint pitch diameter, β 1, β 2 be driving and driven cone
Gear mean spiral angle, based on Z1, Z2, the driven wheel of differential number of teeth.The general according to the form below of dimensions of tooth depth of contour gear is selected
Select：
| Parameter name | Code name | Range of choice | Recommendation |
| Height of teeth top | ha | （0.9~1.10）×Mn | 1.00Mn |
| Height of teeth root | hf | （1.1~1.35）×Mn | 1.25Mn |
| Fully teeth height | h | ha +hf | 2.25Mn |
2. the geometry of tool section is routinely designed according to product parameters.
Calculate the grinding depth H of tool in cutting sword by software, H=1.1 × h=2.475 × Mn, as shown in Figure 2.Root
Increase salient angle in the main cutting face root of tool section according to product size, the design parameter of salient angle is salient angle angle and salient angle height, and
And salient angle height is chosen according to the diameter and modulus of gear workpieces.Salient angle angle [alpha] is 30 °, and salient angle height K preferred scope is
0.5 ~ 1.0mm, as shown in Figure 3.
Second step, is whetted a knife according to design parameter.
Tool grinding parameter to software default is modified, and inputs knife sharpener special, can be single using special purpose machine tool
Face is ground and emulation carries out tool grinding.1. the sharpening parameter of design is inputted into knife sharpener special, includes increased salient angle parameter；
2. carbide cutter tool emery wheel is ground in selection, and rough grinding wheel is 80 granularities, and finishing wheel granularity is 220 granularities；3. sharpening every time is designed
Surplus, corase grind allowance be 0.3mm, fine grinding surplus be 0.05mm, start lathe whetted a knife, the interior knife after grinding with
Outer knife effect is as shown in Figure 4.
3rd step, sharpening accuracy detection is carried out to the tool section after milled.
On special tool section detection device, ruby gauge head, the sensor device on detection device are utilized
And expert data processing software, every tool section after grinding is detected, difference is compared with design theory size：
Main cutting edge wheel profile is within ± 0.004mm；Lobe profile is within ± 0.025mm.
4th step, is combined into cutter, and detected again by the tool section after detection on cutterhead.
On special assembling detection device, tool section is arranged on cutterhead and installation accuracy is detected, after whole dise knife assembling,
Circular runout≤0.0025mm, axial runout≤0.025mm.
In the detecting step of above-mentioned 3rd step and the 4th step, be ground tool section is carried out by special inspecting equipment accurate
Control.
5th step, cutterhead is installed on tooth milling machine.
After cutterhead is installed, circular runout≤0.005mm, axial runout≤0.005mm.
6th step, on tooth milling machine by gear workpieces clamping in place after, call mill teeth program carry out mill teeth while, it is right
Tooth top carries out accurate chamfered edge tip relief processing.
Adjust tooth milling machine parameter, slightly cut the amount of feeding be 0.08~0.13mm/ teeth, the fine cut amount of feeding be 0.01~0.04mm,
Knife cutting linear velocity is that the effect after 230~260m/min, mill teeth chamfered edge is as shown in Figure 5.
The present invention is not limited to above-mentioned embodiment, the knowledge possessed in art those of ordinary skill
It is interior, it can also be made a variety of changes on the premise of present inventive concept and principle is not departed from.
Claims (5)
1. a kind of processing method of contour helical gear tooth top chamfered edge, it is characterised in that comprise the following steps：
A, design tool section shape, select design parameter；
B, whetted a knife according to design parameter；
C, to after milled tool section carry out sharpening accuracy detection；
D, the tool section after detection is combined into cutter on cutterhead, and detected again；
E, cutterhead is installed on tooth milling machine；
F, on tooth milling machine by gear workpieces clamping in place after, call mill teeth program carry out mill teeth while, to tooth top carry out
Accurate chamfered edge tip relief processing.
2. the processing method of contour helical gear tooth top chamfered edge according to claim 1, it is characterised in that：The design knife
Strip is to increase salient angle in the main cutting face root of tool section.
3. the processing method of contour helical gear tooth top chamfered edge according to claim 2, it is characterised in that：The salient angle
Design parameter is highly chosen for salient angle angle and salient angle height, and salient angle according to the diameter and modulus of gear workpieces.
4. the processing method of contour helical gear tooth top chamfered edge according to claim 3, it is characterised in that：The salient angle angle
Spend for 30 °, salient angle is highly 0.5 ~ 1.0mm.
5. the processing method of contour helical gear tooth top chamfered edge according to claim 1, it is characterised in that：The step C
Or in D, be ground tool section is accurately controlled by special inspecting equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710269189.8A CN106964849A (en) | 2017-04-24 | 2017-04-24 | The processing method of contour spiral bevel gear tooth top chamfered edge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710269189.8A CN106964849A (en) | 2017-04-24 | 2017-04-24 | The processing method of contour spiral bevel gear tooth top chamfered edge |
Publications (1)
| Publication Number | Publication Date |
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| CN106964849A true CN106964849A (en) | 2017-07-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710269189.8A Pending CN106964849A (en) | 2017-04-24 | 2017-04-24 | The processing method of contour spiral bevel gear tooth top chamfered edge |
Country Status (1)
| Country | Link |
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| CN (1) | CN106964849A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108393544A (en) * | 2018-05-10 | 2018-08-14 | 中国有色（沈阳）冶金机械有限公司 | A kind of gear wheel tooth top tip relief chamfered edge dedicated tool |
| CN110802282A (en) * | 2019-10-30 | 2020-02-18 | 中国航发哈尔滨东安发动机有限公司 | Method for rounding spiral bevel tooth crest |
| CN114799362A (en) * | 2022-06-28 | 2022-07-29 | 湖南中大创远数控装备有限公司 | Grinding machine, bowl-shaped grinding wheel and shape modification method of bowl-shaped grinding wheel |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2772602A (en) * | 1951-03-30 | 1956-12-04 | John M Christman | Apparatus for manufacturing spiral bevel and hypoid gears |
| US4548531A (en) * | 1983-05-03 | 1985-10-22 | United Technologies Corporation | Method for chamfering the edges of gear teeth |
| CN201120503Y (en) * | 2007-11-23 | 2008-09-24 | 重庆绿波工贸有限公司 | Riser auger angular wheel milling gear-grinding apparatus |
| CN101695773A (en) * | 2009-10-27 | 2010-04-21 | 南京工业大学 | Indexable formed double-cutter-disc gear milling cutter |
| CN201511184U (en) * | 2009-07-03 | 2010-06-23 | 大连冶金轴承股份有限公司 | Rough milling machine |
| CN201735908U (en) * | 2010-07-14 | 2011-02-09 | 四川天虎工具有限责任公司 | Grinding-tolerance worm milling cutter |
| CN203184773U (en) * | 2013-03-18 | 2013-09-11 | 德州德隆(集团)机床有限责任公司 | Front gear grinding hob |
-
2017
- 2017-04-24 CN CN201710269189.8A patent/CN106964849A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2772602A (en) * | 1951-03-30 | 1956-12-04 | John M Christman | Apparatus for manufacturing spiral bevel and hypoid gears |
| US4548531A (en) * | 1983-05-03 | 1985-10-22 | United Technologies Corporation | Method for chamfering the edges of gear teeth |
| CN201120503Y (en) * | 2007-11-23 | 2008-09-24 | 重庆绿波工贸有限公司 | Riser auger angular wheel milling gear-grinding apparatus |
| CN201511184U (en) * | 2009-07-03 | 2010-06-23 | 大连冶金轴承股份有限公司 | Rough milling machine |
| CN101695773A (en) * | 2009-10-27 | 2010-04-21 | 南京工业大学 | Indexable formed double-cutter-disc gear milling cutter |
| CN201735908U (en) * | 2010-07-14 | 2011-02-09 | 四川天虎工具有限责任公司 | Grinding-tolerance worm milling cutter |
| CN203184773U (en) * | 2013-03-18 | 2013-09-11 | 德州德隆(集团)机床有限责任公司 | Front gear grinding hob |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108393544A (en) * | 2018-05-10 | 2018-08-14 | 中国有色（沈阳）冶金机械有限公司 | A kind of gear wheel tooth top tip relief chamfered edge dedicated tool |
| CN110802282A (en) * | 2019-10-30 | 2020-02-18 | 中国航发哈尔滨东安发动机有限公司 | Method for rounding spiral bevel tooth crest |
| CN110802282B (en) * | 2019-10-30 | 2021-09-28 | 中国航发哈尔滨东安发动机有限公司 | Spiral bevel gear tooth crest rounding processing method |
| CN114799362A (en) * | 2022-06-28 | 2022-07-29 | 湖南中大创远数控装备有限公司 | Grinding machine, bowl-shaped grinding wheel and shape modification method of bowl-shaped grinding wheel |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170721 |