CN103630104A - Method for measuring curvature radius of spherical basal planes of tapered rollers - Google Patents
Method for measuring curvature radius of spherical basal planes of tapered rollers Download PDFInfo
- Publication number
- CN103630104A CN103630104A CN201310669213.9A CN201310669213A CN103630104A CN 103630104 A CN103630104 A CN 103630104A CN 201310669213 A CN201310669213 A CN 201310669213A CN 103630104 A CN103630104 A CN 103630104A
- Authority
- CN
- China
- Prior art keywords
- measurement point
- measured
- measuring
- tapered roller
- base surface
- 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.)
- Granted
Links
Images
Landscapes
- A Measuring Device Byusing Mechanical Method (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The invention provides a method for measuring the curvature radius of spherical basal planes of tapered rollers. The method comprises the following steps of enabling the coaxiality of the axis of a taper roller to be measured and a radial measuring fulcrum on the taper roller to be measured to be smaller than or equal to 2 micrometers; measuring the distance between a first measuring point outside a cavity of a spherical basal plane and the axis of the tapered roller; measuring the distance between a second measuring point on the spherical basal plane of the tapered roller to be measured and the axis of the tapered roller; measuring the perpendicular distance between the two measuring points; enabling the two measuring points and a cone peak to be positioned on the same plane circle; and calculating the curvature radius of the spherical basal plane of the tapered roller to be measured by using a formula. By using the method, the problems that the existing detecting method is a qualitative detecting method, the existing detecting technology is a qualitative detecting technology, only whether the quality of products is qualified or not can be judged, and the quality of the products cannot be quantitatively judged are solved; and measurement is accurate and meet the requirement on actual machining.
Description
Technical field
The invention belongs to field of measuring technique, relate to a kind of method of measuring spherical base surface of tapered roller radius-of-curvature.
Background technology
It is improper that bearing conical roller ball basal plane radius-of-curvature is controlled, and can directly cause the hidden danger of quality that bearing axial carrying capacity declines and rib is burnt to death, greatly reduces serviceable life and the reliability of bearing.Therefore,, in Production of bearing process, need control the ball basal plane radius-of-curvature of taper roller.At present, control and the detection of radius-of-curvature are carried out in the measurement of bearing industry taper roll bearing ball basal plane bar none by model measuring method.That is to say that the method controls the range of work of spherical base surface of tapered roller radius-of-curvature by the large and small model of model, and the range of curvature radius of spherical base surface of tapered roller is less, radius-of-curvature variation range is little, when spherical base surface of tapered roller radius-of-curvature being carried out to qualitative detection with model, gauger's technology and experience are had relatively high expectations, can only qualitatively judge ball basal plane radius-of-curvature whether qualified and cannot know the accurate numerical value of ball basal plane radius-of-curvature, measuring error is very big, cannot realize the quality objective that the rib contact rate of bearing is control effectively.
Summary of the invention
The object of this invention is to provide a kind of method of measuring spherical base surface of tapered roller radius-of-curvature, can obtain the accurate numerical value of spherical base surface of tapered roller radius-of-curvature, whether qualifiedly quantitatively judge ball basal plane radius-of-curvature, measuring accuracy is high, realizes the quality objective that bearing edge guard contact rate is control effectively.
For achieving the above object, the technical solution adopted in the present invention is: a kind of method of measuring spherical base surface of tapered roller radius-of-curvature, can obtain the accurate numerical value of spherical base surface of tapered roller radius-of-curvature, measuring accuracy is high, can realize the quality objective that bearing edge guard contact rate is control effectively, this measuring method is specifically carried out according to the following steps:
Step 1: the radial measurement fulcrum in Precision Machining spherical base surface of tapered roller to be measured cave and this taper roller to be measured, make the right alignment of this radial measurement fulcrum and this taper roller axis to be measured be less than or equal to 2 μ m;
Step 2: selected the first measurement point on the ball basal plane outside the spherical base surface of tapered roller to be measured cave after step 1 Precision Machining, records the distance between the first measurement point and taper roller axis to be measured;
Step 3: on spherical base surface of tapered roller to be measured, along moving the first measurement point away from the direction of taper roller axis to be measured, to the second measurement point that is positioned at ball basal plane chamfering inner side, the first measurement point, the second measurement point and cone apex are positioned on same plane circle, record the distance between the second measurement point and taper roller axis to be measured, record the vertical range between the second measurement point and the first measurement point simultaneously;
Step 4: calculate spherical base surface of tapered roller radius-of-curvature to be measured by following formula
sR:
In formula: L1 is the distance between the first measurement point and taper roller axis; L is the distance between the second measurement point and taper roller axis; Δ h is the vertical range between the first measurement point and the second measurement point.
In described step 3, the second measurement point must be positioned on the ball basal plane of taper roller to be measured, does not interfere with non-machined surface, avoids ball basal plane cave and chamfering coordinate dimension.
Some principal elements that measuring method of the present invention mainly affects ball basal plane curvature by Measurement accuracy as parameters such as center chord length, basal plane drops after, then by computing machine, simply weave into the radius-of-curvature of accurate calculating roller ball basal plane; Obtain the accurate numerical value of spherical base surface of tapered roller radius-of-curvature, whether qualifiedly quantitatively judge curvature radius of roller ball base level, there is higher measuring accuracy, realized the quality objective that bearing edge guard contact rate is control effectively.
Accompanying drawing explanation
Fig. 1 is the schematic diagram while adopting measuring method of the present invention to measure spherical base surface of tapered roller radius-of-curvature.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
In taper roll bearing production run, need control spherical base surface of tapered roller radius-of-curvature, and then bearing edge guard contact rate is control effectively.But be all to adopt model to detect spherical base surface of tapered roller radius-of-curvature conventionally, gauger's technology and experience are had relatively high expectations, and it is whether qualified and cannot know the accurate numerical value of ball basal plane radius-of-curvature the large and small model (controlling two kinds of limit models of ball basal plane curvature) by model to qualitatively judge ball basal plane radius-of-curvature, measuring error is very big, cannot realize the quality objective that bearing edge guard contact rate is control effectively.In order to overcome above-mentioned problems of the prior art, the invention provides a kind of method of measuring spherical base surface of tapered roller radius-of-curvature, can quantitatively obtain the accurate numerical value of spherical base surface of tapered roller radius-of-curvature, measuring accuracy is high, lower to gauger's technology and experience requirement, can realize the quality objective that bearing edge guard contact rate is control effectively.This measuring method is specifically carried out according to the following steps:
Step 1: the radial measurement fulcrum in Precision Machining (as match grinding) spherical base surface of tapered roller to be measured cave and this taper roller to be measured, make the right alignment of this radial measurement fulcrum and this taper roller axis to be measured be less than or equal to 2 μ m;
Step 2: the ball basal plane by the radial measurement fulcrum in the spherical base surface of tapered roller to be measured cave after Precision Machining in step 1 along taper roller to be measured moves radially, and move to the first measurement point A outside spherical base surface of tapered roller to be measured cave, as shown in Figure 1, record the distance L 1 between the first measurement point A and taper roller axis to be measured, for the numerical value of convenience of calculation distance L 1 rounds numerical value as far as possible;
Step 3: radially the moving to the direction away from the taper roller axis to be measured of ball basal plane by radial measurement fulcrum from the first measurement point A along taper roller to be measured, move to the second measurement point B, the second measurement point B is positioned at ball basal plane chamfering inner side, record the distance L between the second measurement point B and taper roller axis to be measured, consider while calculating more for convenience, distance L rounds numerical value as far as possible, records the vertical range Δ h between the second measurement point B and the first measurement point A simultaneously;
In measuring process, the selection principle of two measurement points is: the intersection point that 1) the cone apex O(outer surface of cone of the first measurement point A, the second measurement point B and taper roller extends) must be positioned on same plane circle; 2) the first measurement point A and the second measurement point B must be positioned on the ball basal plane of taper roller to be measured, do not interfere with non-machined surface, avoid ball basal plane cave and chamfering coordinate dimension, guarantee to measure the accuracy of numerical value;
Step 4: calculate spherical base surface of tapered roller radius-of-curvature to be measured by following formula
sR:
In formula: L1 is the distance between the first measurement point and taper roller axis; L is the distance between the second measurement point and taper roller axis; Δ h is the vertical range between the first measurement point and the second measurement point.
The origin of formula (1):
The 32320 type taper roll bearings of take are example, and the diameter in the ball basal plane cave on the taper roller using in this bearing is 16mm, and it is 425mm that design drawing requires the ball basal plane radius-of-curvature SR of this taper roller.In production run, in order to make the quality of product reach requirement, adopt the inventive method to measure the ball basal plane radius-of-curvature SR of this taper roller: on the ball basal plane outside ball basal plane cave, selected first measures A, the distance L 1 recording between the first measurement point A and this taper roller axis is 10mm, at the ball basal plane Shang Yanyuan road of this taper roller taper roller axis direction traverse measurement point, and selected the second measurement point B, the first measurement point A, the second measurement point B and cone apex O are positioned on same plane circle; The first measurement point A and the second measurement point B are all positioned on the ball basal plane of taper roller to be measured, do not interfere with non-machined surface, avoid ball basal plane cave and chamfering coordinate dimension; The distance L recording between the second measurement point B and this taper roller axis is 13mm, the vertical range Δ h simultaneously recording between the first measurement point A and the second measurement point B is 0.082 mm, by three the data substitution formula (1) that record, calculating this spherical base surface of tapered roller radius-of-curvature SR is 421mm, meets Design Requirement Drawing.
Measuring method of the present invention has thoroughly changed existing ball basal plane radius-of-curvature and has adopted inaccurate model to carry out the present situation of observational measurement, by indirect measurement data, accurately calculate spherical base surface of tapered roller radius-of-curvature, guaranteed that bearing finished products is to roller ball basal plane and the consistent quality requirements of inner ring large-flange contact rate height.Solved existing detection method and technology and be qualitative detection, judged that only whether product quality is qualified, and cannot carry out the whether qualified problem quantitatively judging; Make to measure and more accurately, more approach actual processing request.
Claims (2)
1. a method of measuring spherical base surface of tapered roller radius-of-curvature, the accurate numerical value that can obtain spherical base surface of tapered roller radius-of-curvature, measuring accuracy is high, can realize the quality objective that bearing edge guard contact rate is control effectively, it is characterized in that, this measuring method is specifically carried out according to the following steps:
Step 1: the radial measurement fulcrum in Precision Machining spherical base surface of tapered roller to be measured cave and this taper roller to be measured, make the right alignment of this radial measurement fulcrum and this taper roller axis to be measured be less than or equal to 2 μ m;
Step 2: selected the first measurement point on the ball basal plane outside the spherical base surface of tapered roller to be measured cave after step 1 Precision Machining, records the distance between the first measurement point and taper roller axis to be measured;
Step 3: on spherical base surface of tapered roller to be measured, along moving the first measurement point away from the direction of taper roller axis to be measured, to the second measurement point that is positioned at ball basal plane chamfering inner side, the first measurement point, the second measurement point and cone apex are positioned on same plane circle, record the distance between the second measurement point and taper roller axis to be measured, record the vertical range between the second measurement point and the first measurement point simultaneously;
Step 4: calculate spherical base surface of tapered roller radius-of-curvature to be measured by following formula
sR:
In formula: L1 is the distance between the first measurement point and taper roller axis; L is the distance between the second measurement point and taper roller axis; Δ h is the vertical range between the first measurement point and the second measurement point.
2. the method for measurement spherical base surface of tapered roller radius-of-curvature as claimed in claim 1, it is characterized in that, in described step 3, the second measurement point is positioned on the ball basal plane of taper roller to be measured, does not interfere with non-machined surface, avoids ball basal plane cave and chamfering coordinate dimension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310669213.9A CN103630104B (en) | 2013-12-11 | 2013-12-11 | Method for measuring curvature radius of spherical basal planes of tapered rollers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310669213.9A CN103630104B (en) | 2013-12-11 | 2013-12-11 | Method for measuring curvature radius of spherical basal planes of tapered rollers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103630104A true CN103630104A (en) | 2014-03-12 |
| CN103630104B CN103630104B (en) | 2017-01-11 |
Family
ID=50211395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310669213.9A Active CN103630104B (en) | 2013-12-11 | 2013-12-11 | Method for measuring curvature radius of spherical basal planes of tapered rollers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103630104B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107152902A (en) * | 2017-07-21 | 2017-09-12 | 江阴全华丰精锻有限公司 | With sphere, there are the arc surface detection method and its special gauge of centre bore part |
| CN108917689A (en) * | 2018-08-01 | 2018-11-30 | 京东方科技集团股份有限公司 | Radius of curvature measurement equipment and its measurement method |
| CN112254616A (en) * | 2020-09-07 | 2021-01-22 | 洛阳汇工轴承科技有限公司 | Radius measuring instrument and measuring method for spherical basal plane of conical roller |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000136926A (en) * | 1998-10-30 | 2000-05-16 | Nikon Corp | Measuring apparatus for shape evaluation index |
| CN101344370A (en) * | 2008-08-20 | 2009-01-14 | 万向集团公司 | Measuring method for curvature radius of roller ball base level |
| JP5345568B2 (en) * | 2010-02-02 | 2013-11-20 | 公益財団法人鉄道総合技術研究所 | Method for measuring curvature and curve radius of railway tracks |
-
2013
- 2013-12-11 CN CN201310669213.9A patent/CN103630104B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000136926A (en) * | 1998-10-30 | 2000-05-16 | Nikon Corp | Measuring apparatus for shape evaluation index |
| CN101344370A (en) * | 2008-08-20 | 2009-01-14 | 万向集团公司 | Measuring method for curvature radius of roller ball base level |
| JP5345568B2 (en) * | 2010-02-02 | 2013-11-20 | 公益財団法人鉄道総合技術研究所 | Method for measuring curvature and curve radius of railway tracks |
Non-Patent Citations (3)
| Title |
|---|
| 张秀萍: "圆锥滚子轴承及推力调心滚子轴承", 《轴承》, no. 6, 30 November 2004 (2004-11-30), pages 4 - 5 * |
| 张翠红等: "球面滚子三点测量的应用", 《哈尔滨轴承》, vol. 30, no. 2, 30 June 2009 (2009-06-30), pages 56 - 58 * |
| 裴宏涛: "球面滚子素线曲率半径的测量", 《轴承》, no. 1, 31 December 2005 (2005-12-31), pages 35 - 37 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107152902A (en) * | 2017-07-21 | 2017-09-12 | 江阴全华丰精锻有限公司 | With sphere, there are the arc surface detection method and its special gauge of centre bore part |
| CN108917689A (en) * | 2018-08-01 | 2018-11-30 | 京东方科技集团股份有限公司 | Radius of curvature measurement equipment and its measurement method |
| WO2020024694A1 (en) * | 2018-08-01 | 2020-02-06 | 京东方科技集团股份有限公司 | Curvature radius measurement device and measurement method thereof |
| CN108917689B (en) * | 2018-08-01 | 2021-01-22 | 京东方科技集团股份有限公司 | Curvature radius measuring apparatus and measuring method thereof |
| CN112254616A (en) * | 2020-09-07 | 2021-01-22 | 洛阳汇工轴承科技有限公司 | Radius measuring instrument and measuring method for spherical basal plane of conical roller |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103630104B (en) | 2017-01-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103692292B (en) | The method carrying out workpiece size on-line measurement on lathe | |
| CN102889863B (en) | A kind of screw mandrel straight linear degree automatic detector and application thereof | |
| CN109032069B (en) | Non-contact R-test measuring instrument sphere center coordinate calculation method adopting eddy current displacement sensor | |
| CN111433557B (en) | Pipeline size measuring system | |
| CN105571461A (en) | Accuracy measurement method for precision tapered hole | |
| CN105583825B (en) | A kind of industrial robot track detection device | |
| CN103264318B (en) | A kind of online test method of three-dimensional profile | |
| CN202024752U (en) | Coaxiality measuring instrument | |
| CN103707132A (en) | Method of presetting tools on numerical control machine tool on the basis of spherical-contact sensing part of tool-presetting measuring head | |
| CN102980485A (en) | Detection device and method for detecting diameter and depth of any cross section in chamfer | |
| CN205209415U (en) | Accurate taper hole NULL device | |
| CN103630104A (en) | Method for measuring curvature radius of spherical basal planes of tapered rollers | |
| CN104457522B (en) | Method for measuring keyway symmetry degree of shaft part | |
| Maščeník et al. | Determining the exact value of the shape deviations of the experimental measurements | |
| CN104296618A (en) | Device and method for measuring ring perpendicular error and running accuracy of finished product radial ball bearing | |
| CN109631720B (en) | Measuring method of annular cylinder | |
| CN107063330A (en) | Porous plate standard and joint error detection method for multi-sensor measurement system | |
| CN105698709A (en) | Measurement method for curvature radius of tapered roller | |
| CN203489826U (en) | Orifice chamfer axial depth detection device | |
| CN106392206A (en) | Tooth form geometrical parameter measurement method for online machining of large-diameter multi-thread ring gauge | |
| CN102873587A (en) | Method for measuring section dimension of revolved body component | |
| CN105526900A (en) | Method for measuring inclined-plane wall thickness of wheel hub | |
| CN102095366A (en) | Method for measuring large-gradient aspheric surface profile | |
| CN206269715U (en) | A kind of centre bore device for accurately measuring | |
| CN103808288A (en) | Angular contact ball bearing groove position measuring method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |