CN1162229C - Method instead f cold rolling for making spline or screw template - Google Patents
Method instead f cold rolling for making spline or screw template Download PDFInfo
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- CN1162229C CN1162229C CNB021361673A CN02136167A CN1162229C CN 1162229 C CN1162229 C CN 1162229C CN B021361673 A CNB021361673 A CN B021361673A CN 02136167 A CN02136167 A CN 02136167A CN 1162229 C CN1162229 C CN 1162229C
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- spline
- die
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Abstract
The present invention discloses a replacement method of cold rolling splines and screw templates. When two spline templates have the same modulus and pressure angles and the actual tooth thickness difference between two splines is smaller than 0.1mm, a calculation formula of replacement technological parameters among odd teeth or even teeth is 2H+Die=139.7, wherein H is the maximal height mm of the templates; the Die is the minor diameter mm of the workpiece splines. A calculation formula of replacement technological parameters between odd tooth and even tooth splines is 2H+Die=139.7, wherein H is the maximal height mm of the templates; the Die is the minor diameter mm of the workpiece splines. The replacement method successfully realizes the template replacement of the odd tooth splines and the even tooth splines; on the basis, people also summarize a factor influencing on the tooth shape and the combined error of involute splines after replacement: the difference size of the actual tooth thicknesses of the two splines; the actual tooth thicknesses of the two splines are nearer; and the tooth shape and the combined error of the splines are smaller. For solving the specification problem of screw threads, when screw thread pitches are the same, the method using the screw templates to replace for realizing the screw threads of different specifications is likewise provided.
Description
Technical field
The present invention relates to the alternative method of a kind of cold rolling for making spline, screw template.
Background technology
Being connected between constant velocity cardan joint and the car load, realize by involute spline and screw thread.Spline and thread size must meet client's requirement, otherwise can directly have influence on the assembly relation of parts.Along with the fast development of company, increasing significantly of product line, kind so just brings frock to increase thereupon, the problem that causes cost to increase.Wherein particularly crucial is the cold rolling template of spline.
Summary of the invention
The alternative method that the purpose of this invention is to provide a kind of cold rolling for making spline, screw template.
The modulus of two spline templates before and after substituting, pressure angle is identical, when the actual transverse tooth thickness of described two spline templates differs less than 0.1mm, alternative techniques calculation of parameter formula between the odd number tooth or between the even number tooth is 2H+Die=139.7, in the formula: H is template maximum height mm, Die is workpiece spline path mm, 139.7 be cold-rolling mill opening size mm, alternative techniques calculation of parameter formula between odd number tooth and the even number tooth spline is 2H+Die=139.7, in the formula: H is template maximum height mm, Die is workpiece spline path mm, 139.7 be cold-rolling mill opening size mm, template offsetting amount is t=π m/2, in the formula: m is the spline modulus.
When the cold rolling template template of screw thread pitch is identical, the technological parameter calculating formula that the cold rolling template of screw thread substitutes is: 2H+d=139.7, in the formula: H is template maximum height mm, d is screw thread path mm, 139.7 be cold-rolling mill opening size mm, template side mat thickness: t=330tg β, in the formula: β is the difference of two lead angles.
The present invention has realized that successfully the template of odd number and even number tooth spline substitutes, on this basis, we also sum up the profile of tooth that substitutes the back involute spline, the influence factor of composition error: the difference size of the actual transverse tooth thickness of two splines, the actual transverse tooth thickness of two splines is approaching more, and profile of tooth, the composition error of spline are more little.In order to solve the specification problem of screw thread, when thread pitch was identical, the same employing screw template that proposes substituted realization different size screw thread.
Description of drawings
The cold rolling formwork structure schematic diagram of Fig. 1 spline;
Fig. 2 is the cold rolling formwork structure schematic diagram of screw thread.
The specific embodiment
Through a large amount of engineer testings, drawing the alternative condition of screw template is that pitch is identical, lead angle is measured by template and adjusted unanimity.Thereby finally cold rolling for making spline, screw template are substituted and draw as drawing a conclusion:
(1) the cold rolling template alternative method of spline:
Modulus, the pressure angle of two kinds of splines are identical; The actual transverse tooth thickness of two splines differs less than 0.1mm, substitutes good.
(2) the cold rolling template alternative method of screw thread:
Pitch is identical.
(3) the alternative technological parameter of the cold rolling template of spline calculates:
1. substituting between the odd number tooth or between the even number tooth
2H+Die＝139.7
In the formula: H is template maximum height (mm)
Die is a workpiece spline path (mm)
139.7 be cold-rolling mill (XK237) opening size (mm)
2. substituting between odd number tooth and the even number tooth spline
(1) 2H+Die=139.7
In the formula: H is template maximum height (mm)
Die is a workpiece spline path (mm)
139.7 be cold-rolling mill (XK237) opening size (mm)
(2) template offsetting amount: t=π m/2
In the formula: m is the spline modulus
(4) the alternative technological parameter of the cold rolling template of screw thread calculates:
(1) 2H+d=139.7
In the formula: H is template maximum height (mm)
D is screw thread path (mm)
139.7 be cold-rolling mill (XK237) opening size (mm)
(2) template side mat thickness: t=330tg β
In the formula: β is the difference of two lead angles
Claims (2)
1, a kind of alternative method of cold rolling for making spline template, it is characterized in that: the modulus of two spline templates before and after substituting, pressure angle is identical, when the actual transverse tooth thickness of described two spline templates differs less than 0.1mm, alternative techniques calculation of parameter formula between the odd number tooth or between the even number tooth is 2H+Die=139.7, in the formula: H is template maximum height mm, Die is workpiece spline path mm, 139.7 be cold-rolling mill opening size mm, alternative techniques calculation of parameter formula between odd number tooth and the even number tooth spline is 2H+Die=139.7, in the formula: H is template maximum height mm, Die is workpiece spline path mm, 139.7 be cold-rolling mill opening size mm, template offsetting amount is t=π m/2, and in the formula: m is the spline modulus.
2, a kind of alternative method of cold-rolled thread template, it is characterized in that: when the cold rolling template template of screw thread pitch is identical, the technological parameter calculating formula that the cold rolling template of screw thread substitutes is: 2H+d=139.7, in the formula: H is template maximum height mm, d is screw thread path mm, 139.7 be cold-rolling mill opening size mm, template side mat thickness: t=330tg β, in the formula: β is the difference of two lead angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021361673A CN1162229C (en) | 2002-07-22 | 2002-07-22 | Method instead f cold rolling for making spline or screw template |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021361673A CN1162229C (en) | 2002-07-22 | 2002-07-22 | Method instead f cold rolling for making spline or screw template |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1390657A CN1390657A (en) | 2003-01-15 |
| CN1162229C true CN1162229C (en) | 2004-08-18 |
Family
ID=4748532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021361673A Expired - Fee Related CN1162229C (en) | 2002-07-22 | 2002-07-22 | Method instead f cold rolling for making spline or screw template |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1162229C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103521665B (en) * | 2013-09-30 | 2015-06-03 | 西安交通大学 | Method for determining mould structure for simultaneously forming threads and splines in rolling mode |
-
2002
- 2002-07-22 CN CNB021361673A patent/CN1162229C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1390657A (en) | 2003-01-15 |
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| Date | Code | Title | Description |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040818 Termination date: 20200722 |