CN108247304A - The method for promoting teeth directional precision after internal spline is heat-treated - Google Patents
The method for promoting teeth directional precision after internal spline is heat-treated Download PDFInfo
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- CN108247304A CN108247304A CN201810030121.9A CN201810030121A CN108247304A CN 108247304 A CN108247304 A CN 108247304A CN 201810030121 A CN201810030121 A CN 201810030121A CN 108247304 A CN108247304 A CN 108247304A
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- internal spline
- spline
- grinding
- teeth directional
- grinding rod
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gears, Cams (AREA)
Abstract
The present invention relates to a kind of processes of teeth directional precision after promotion internal spline carburizing, by using plug stretching part internal spline path more smaller than part material shrinking percentage, and then control part inner spline gear to slope deformation tendency stability；By data comparison, analysis and summary goes out internal spline and is heat-treated teeth directional variation error through carburizing, and use grinding rod and part internal spline unilateral side face, grinding rod straight reciprocating motion finishing internal spline tooth alignment error.The problem of roll flute equipment finishing teeth directional can not be used after being heat-treated present application addresses the carburizing of low module internal spline, this process program can realize the long 40mm internal splines tooth alignment error≤0.01mm of tooth, and spline teeth directional accuracy class reaches 5 grades.
Description
Technical field
The present invention relates to a kind of methods for promoting teeth directional precision after internal spline is heat-treated.
Background technology
Accessory drive gear in aviation field, frequently with internal spline as the mode for transmitting torque, with transmission stability
It is required that the continuous continuous increase promoted and transmit torque, internal spline is usually made into carburizing heat treatment requirements, while require spline
Teeth portion precision reaches 5~6 grades or so.Aviation accessory transmission gear dimensional structure is smaller, therefore the usual number of teeth of internal spline is smaller, modulus
Smaller, spline path size is limited by structure size generally between 10mm~40mm and roll flute capacity of equipment limits.Internal spline
Grinding can not be carried out after carburizing heat treatment, the deflection that carburizing heat treatment is brought can not be eliminated.At present, it is domestic to use at heat
After reason, the artificial mode using grinding rod grinding spline teeth directional modifies carburizing deflection, but can not meet 5~6 grades of teeth directional at all
Internal spline required precision.
Invention content
The object of the present invention is to provide a kind of methods for promoting teeth directional precision after internal spline carburizing is heat-treated, and can effectively carry
The precision after internal spline heat treatment is risen, meets 5~6 grades of internal spline required precisions of teeth directional.
The present invention relates to a kind of processes of teeth directional precision after promotion internal spline carburizing, are as follows：
1st, internal spline path controls
Grinding internal spline path, tolerance range are controlled within 0.015mm, small cylindricity≤0.005mm；
2nd, plug is made
The material for selecting percent thermal shrinkage smaller than part processes 5 grades of plugs, every grade of plug size by internal spline path size nominal value
Tolerance is 0.003mm；
3rd, plug is matched
Internal spline path and plug size are matched, ensures gap≤0.005mm；
4th, it is heat-treated
The gear equipped with plug is disposed vertically in heat-treatment furnace during carburizing, Carburization Treatment is carried out by regulation heat treatment parameter；
5th, spline grinding rod is made
Internal spline stick spacing dimension is measured, and by actual value is measured, makes 5 grades of grinding rods, every grade of grinding rod dimensional tolerance downwards
0.01mm grinds and chip pocket is set on rod outside diameter, and stick is selected to be smaller than grinding for internal spline 0.02~0.03mm of stick spacing dimension
Frotton grinds spline；The internal spline stick spacing dimension diameter of a circle tangent for the pitch circle rod with being arranged in tooth socket；
6th, inner spline gear is to grinding
Grinding rod is had the function of in equipment up and down reciprocatingly that main shaft reciprocating linear degree is required to meet 0.01mm/ loaded on main shaft
The part for being machined with internal spline is fixed on equipment workbench by 200mm, and the bounce of the centering part outer diameter benchmark diameter of axle≤
After 0.005mm, ensure the part centre of gyration and the grinding rod centre of gyration it is coaxial≤0.005mm；
Grinding rod is inserted into internal spline, then rotating main shaft makes the grinding rod flank of tooth be bonded with one lateral tooth flank of internal spline, then locks
Determine main shaft spinfunction, main shaft is made to be only capable of pumping, and then drive grinding rod grinding spline；
Internal spline flank of tooth grind is controlled by rotary table, often grinds 3 minutes, measures spline teeth directional precision, directly
It crosses and meets the requirements to essence；
Repeat the above steps grinding internal spline opposite side teeth directional.
The application is by using plug stretching part internal spline path more smaller than part material shrinking percentage, together with part
It is heat-treated, and then controls part inner spline gear to slope deformation tendency stability.By measuring internal spline before and after heat treatment
Teeth directional slope error, carries out data comparison, and analysis and summary goes out internal spline and is heat-treated teeth directional variation error through carburizing, and calculated
Quantization, then using grinding rod and part internal spline unilateral side face, grinding rod straight reciprocating motion finishing inner spline gear to
Error.The process program of the application design grinds internal spline, by removing material using grinding rod and high-precision straight reciprocating motion
The mode of material promotes teeth directional precision, and roll flute equipment finishing teeth directional can not be used after solving low module internal spline carburizing heat treatment
Problem, this process program can realize the long 40mm internal splines tooth alignment error≤0.01mm of tooth, and spline teeth directional accuracy class reaches 5 grades.
Process of the present invention is not limited to teeth directional amendment after internal spline carburizing heat treatment, similar external splines or other heat treatments
The improvement that method requirement carries out, belongs to this patent covering scope.
Specific embodiment
The process of teeth directional precision, is as follows after a kind of promotion internal spline carburizing：
1st, internal spline path controls
Grinding internal spline path, tolerance range are controlled within 0.015mm, small cylindricity≤0.005mm；
2nd, plug is made
The material for selecting percent thermal shrinkage smaller than part processes 5 grades of plugs, every grade of plug size by internal spline path size nominal value
Tolerance is 0.003mm；
3rd, plug is matched
Internal spline path and plug size are matched, ensures gap≤0.005mm；
4th, it is heat-treated
The gear equipped with plug is disposed vertically in heat-treatment furnace during carburizing, Carburization Treatment is carried out by regulation heat treatment parameter；
5th, spline grinding rod is made
Internal spline stick spacing dimension is measured, and by actual value is measured, makes 5 grades of grinding rods, every grade of grinding rod dimensional tolerance downwards
0.01mm grinds and chip pocket is set on rod outside diameter, and stick is selected to be smaller than grinding for internal spline 0.02~0.03mm of stick spacing dimension
Frotton grinds spline；The internal spline stick spacing dimension diameter of a circle tangent for the pitch circle rod with being arranged in tooth socket；
6th, inner spline gear is to grinding
Grinding rod is had the function of in equipment up and down reciprocatingly that main shaft reciprocating linear degree is required to meet 0.01mm/ loaded on main shaft
The part for being machined with internal spline is fixed on equipment workbench by 200mm, and the bounce of the centering part outer diameter benchmark diameter of axle≤
After 0.005mm, ensure the part centre of gyration and the grinding rod centre of gyration it is coaxial≤0.005mm；
Grinding rod is inserted into internal spline, then rotating main shaft makes the grinding rod flank of tooth be bonded with one lateral tooth flank of internal spline, then locks
Determine main shaft spinfunction, main shaft is made to be only capable of pumping, and then drive grinding rod grinding spline；
Internal spline flank of tooth grind is controlled by rotary table, often grinds 3 minutes, measures spline teeth directional precision, directly
It crosses and meets the requirements to essence；
Repeat the above steps grinding internal spline opposite side teeth directional.
Claims (1)
1. a kind of process for promoting teeth directional precision after internal spline carburizing, which is characterized in that the step of described method is as follows：
1) internal spline path controls
Grinding internal spline path, tolerance range are controlled within 0.015mm, small cylindricity≤0.005mm；
2) plug is made
The material for selecting percent thermal shrinkage smaller than part processes 5 grades of plugs, every grade of plug size by internal spline path size nominal value
Tolerance is 0.003mm；
3) plug is matched
Internal spline path and plug size are matched, ensures gap≤0.005mm；
4) it is heat-treated
The gear equipped with plug is disposed vertically in heat-treatment furnace during carburizing, Carburization Treatment is carried out by regulation heat treatment parameter；
5) spline grinding rod is made
Internal spline stick spacing dimension is measured, and by actual value is measured, makes 5 grades of grinding rods, every grade of grinding rod dimensional tolerance downwards
0.01mm grinds and chip pocket is set on rod outside diameter, and stick is selected to be smaller than grinding for internal spline 0.02~0.03mm of stick spacing dimension
Frotton grinds spline；The internal spline stick spacing dimension diameter of a circle tangent for the pitch circle rod with being arranged in tooth socket；
6) inner spline gear is to grinding
Grinding rod is had the function of in equipment up and down reciprocatingly that main shaft reciprocating linear degree is required to meet 0.01mm/ loaded on main shaft
The part for being machined with internal spline is fixed on equipment workbench by 200mm, and the bounce of the centering part outer diameter benchmark diameter of axle≤
After 0.005mm, ensure the part centre of gyration and the grinding rod centre of gyration it is coaxial≤0.005mm；
Grinding rod is inserted into internal spline, then rotating main shaft makes the grinding rod flank of tooth be bonded with one lateral tooth flank of internal spline, then locks
Determine main shaft spinfunction, main shaft is made to be only capable of pumping, and then drive grinding rod grinding spline；
Internal spline flank of tooth grind is controlled by rotary table, often grinds 3 minutes, measures spline teeth directional precision, directly
It crosses and meets the requirements to essence；
Repeat previous step grinding internal spline opposite side teeth directional.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810030121.9A CN108247304A (en) | 2018-01-12 | 2018-01-12 | The method for promoting teeth directional precision after internal spline is heat-treated |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810030121.9A CN108247304A (en) | 2018-01-12 | 2018-01-12 | The method for promoting teeth directional precision after internal spline is heat-treated |
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| CN108247304A true CN108247304A (en) | 2018-07-06 |
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| CN201810030121.9A Pending CN108247304A (en) | 2018-01-12 | 2018-01-12 | The method for promoting teeth directional precision after internal spline is heat-treated |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111571421A (en) * | 2020-04-30 | 2020-08-25 | 徐云涛 | Processing technology of spline sleeve |
| CN111889818A (en) * | 2020-08-28 | 2020-11-06 | 浙江春风动力股份有限公司 | Conical excircle spline core rod and preparation method thereof |
| CN112122894A (en) * | 2020-09-27 | 2020-12-25 | 中国航发中传机械有限公司 | Device and method for machining rectangular spline in hard tooth surface |
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| DE3819279A1 (en) * | 1988-06-07 | 1989-12-14 | Schwaebische Huettenwerke Gmbh | METHOD FOR PRODUCING A HARDED GUIDE SHAFT FOR A LINEAR FEEDER |
| JPH11201180A (en) * | 1998-01-16 | 1999-07-27 | Ishikawajima Harima Heavy Ind Co Ltd | Spline joint and grinding method thereof |
| CN1468681A (en) * | 2002-06-28 | 2004-01-21 | 爱信艾达株式会社 | Inner spline parts and producing method thereof |
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| CN105422558A (en) * | 2015-12-04 | 2016-03-23 | 中国航空动力机械研究所 | Helicopter torque transmitting mechanism and helicopter speed reducer transmission device |
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| CN107182230B (en) * | 2011-12-20 | 2014-08-13 | 哈尔滨东安发动机（集团）有限公司 | The processing method of hollow thin-wall slender axles |
| CN102699643A (en) * | 2012-06-01 | 2012-10-03 | 上海格尔汽车附件有限公司 | Processing method for pinion of automobile steering device |
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| CN105422558A (en) * | 2015-12-04 | 2016-03-23 | 中国航空动力机械研究所 | Helicopter torque transmitting mechanism and helicopter speed reducer transmission device |
| CN106429401A (en) * | 2016-07-06 | 2017-02-22 | 陈波 | Automatic workpiece loading, unloading and stacking device for gear shaper |
| CN107914122A (en) * | 2017-11-17 | 2018-04-17 | 陕西启源科技发展有限责任公司 | The big spline processing method of main shaft rectangle |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111571421A (en) * | 2020-04-30 | 2020-08-25 | 徐云涛 | Processing technology of spline sleeve |
| CN111571421B (en) * | 2020-04-30 | 2021-12-17 | 江苏万基传动科技有限公司 | Processing technology of spline sleeve |
| CN111889818A (en) * | 2020-08-28 | 2020-11-06 | 浙江春风动力股份有限公司 | Conical excircle spline core rod and preparation method thereof |
| CN112122894A (en) * | 2020-09-27 | 2020-12-25 | 中国航发中传机械有限公司 | Device and method for machining rectangular spline in hard tooth surface |
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Application publication date: 20180706 |