CN103063183B - Method of measuring outer diameter tolerance and ovality of thin-walled loop - Google Patents
Method of measuring outer diameter tolerance and ovality of thin-walled loop Download PDFInfo
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- CN103063183B CN103063183B CN201310008974.XA CN201310008974A CN103063183B CN 103063183 B CN103063183 B CN 103063183B CN 201310008974 A CN201310008974 A CN 201310008974A CN 103063183 B CN103063183 B CN 103063183B
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Abstract
The invention discloses a method of measuring an outer diameter tolerance and the ovality of a thin-walled loop. A measuring table (2) is horizontally fixed above a base (1) through a sunk screw (3). A gauge frame (6) is linked with a gauge support (5) and used for fixing a measuring gauge (4) through screw bolts (7). Two moving fulcrums (8) are initially adjusted to supporting stations based on the outer diameter of a standard thin-walled loop and a measuring head of the measuring gauge is directed at zero. The measuring range of the gauge is adjusted within 0 to 2h. The standard thin-walled loop is taken out and replaced by the to-be-measured loop (9) which is rotated along the lateral fulcrum direction and the vertical fulcrum direction by at least two laps. The maximum value A and the minimum B are read out from the gauge. If (A+B)/2<=h and A-B<=h1, errors of the measured outer diameter tolerance and the measured ovality of the measured thin-walled loop are in compliance with the machining requirement. The errors of the outer diameter tolerance and the ovality of the measured thin-walled loop can be measured once and the method of measuring the outer diameter tolerance and the ovality of the thin-walled loop is suitable for thin-walled loops with large and small outer diameters.
Description
Technical field
The invention belongs to bearing ring detection technique field, particularly the measuring method of a kind of thin-walled lasso outer diameter tolerance and ovality.
Background technology
Bearing ring is generally divided into inner ring or outer ring, for wall thickness thinner be called thin-walled lasso, thin-walled lasso except processing more difficult except, before unassembled, easily produce distortion, particularly larger-size thin-walled lasso more easily produces distortion.
The thin-walled lasso less for outside dimension and general lasso, adopt instrumentation to measure its outer diameter tolerance and ovality usually.
For the thin-walled lasso that outside dimension is larger, above-mentioned instrumentation or do not reach due to measurement range, or cause thin-walled lasso because the ergometry of instrumentation is comparatively large and measure distortion, directly causes measurement result inaccurate and affects the end product quality of thin-walled lasso.
Summary of the invention
For the problems referred to above, the invention provides the measuring method of a kind of thin-walled lasso outer diameter tolerance and ovality, this measuring method is particularly useful for the larger thin-walled lasso of outside dimension, improve surveying work efficiency, alleviate surveying work intensity, can not cause thin-walled lasso due to measurement and measure distortion, reduce due to measurement the rejection rate that thin-walled lasso produces.
For achieving the above object, the present invention adopts following technical scheme:
The measuring method of a kind of thin-walled lasso outer diameter tolerance and ovality, the external diameter setting tested thin-walled lasso and the standard thin-walled lasso processed is Ф D, the external diameter upper deviation of tested thin-walled lasso is 0, the external diameter lower deviation of tested thin-walled lasso is-h, and the ellipticity error of tested thin-walled lasso external diameter is h
1, the external diameter upper deviation and the lower deviation of standard thin-walled lasso are 0, and measuring method of the present invention is as follows:
Scaffold tower is horizontally fixed on above base by sunk screw, scaffold tower is respectively arranged with vertical dovetail groove and inclination dovetail groove, the angle of described inclination dovetail groove and described vertical dovetail groove is 45 °, respectively by dovetail screw attachment two mobile fulcrums in described inclination dovetail groove and described vertical dovetail groove, the mobile fulcrum connected in described vertical dovetail groove is called vertical fulcrum, the mobile fulcrum that described inclination dovetail groove connects is called collateral point, dial framework is connected with in the upper end of described vertical dovetail groove, association list holder on dial framework, the screw that the endoporus of table holder is configured by its side is for the upper meter rod of fixing survey table, the gauge head this ensures that thering survey table vertically points to described vertical fulcrum, the spacing of described vertical fulcrum and described collateral point is tentatively adjusted according to the external diameter of described standard thin-walled lasso, again described standard thin-walled lasso is placed on described vertical fulcrum and described collateral point, upwards finely tune and fix described vertical fulcrum, described standard thin-walled lasso is made to contact the gauge head of survey table and the dial plate rotating survey table makes it aim at 0, finely tune simultaneously and fix described collateral point, at this moment surveying the spacing of gauge head to the described vertical fulcrum=described Ф D of table, loosening screw makes that survey table is micro-downward vertically to be moved, gib screw during table sensing to be measured 2 h, and now the measurement range of survey table just controls between 0 ~ 2 h, take out described standard thin-walled lasso and change tested thin-walled lasso, rotating along described collateral point and described vertical fulcrum direction more than tested thin-walled lasso one encloses, maximal value A and minimum value B can be read from survey table, as (A+B)/2≤h and A-B≤h
1time, illustrate that the tested outer diameter tolerance of tested thin-walled lasso and tested ellipticity error all meet its processing request, as (A+B)/2≤h but A-B > h
1time, illustrate that the tested outer diameter tolerance of tested thin-walled lasso meets its processing request but tested ellipticity error does not meet its processing request, as (A+B)/2 > h but A-B≤h
1time, illustrate that the tested ellipticity error of tested thin-walled lasso meets its processing request but tested outer diameter tolerance does not meet its processing request, as (A+B)/2 > h and A-B > h
1time, illustrate that the tested outer diameter tolerance of tested thin-walled lasso and tested ellipticity error all do not meet its processing request.
Owing to adopting technical scheme described above, the present invention has following superiority
:
1, measuring method of the present invention is particularly useful for the larger thin-walled lasso of outside dimension, is equally applicable to the thin-walled lasso that outside dimension is less, also has reference function to other class lasso.
2, measuring method of the present invention is simple and practical, improves surveying work efficiency, alleviates surveying work intensity.
3. scaffold tower diameter of the present invention can be determined according to bearing ring diameter, because scaffold tower is horizontally disposed, therefore thin-walled lasso can not be caused to deform, ergometry simultaneously owing to surveying table is less, also can not cause thin-walled lasso and measure distortion, reduce due to measurement the rejection rate that thin-walled lasso produces.
Accompanying drawing explanation
Fig. 1 is the three-dimensional simplified schematic diagram of measuring method of the present invention.
In Fig. 1: 1-base; 2-scaffold tower; 3-sunk screw; 4-surveys table; 5-shows holder; 6-dial framework; 7-screw; 8-moves fulcrum; The tested thin-walled lasso of 9-.
Embodiment
The present invention is the measuring method of a kind of thin-walled lasso outer diameter tolerance and ovality, this measuring method just can measure outer diameter tolerance and the ellipticity error of thin-walled lasso by one-time detection, be particularly useful for the thin-walled lasso that outside dimension is larger, equally also be applicable to the thin-walled lasso that outside dimension is less, and also there is reference function to other class lasso.
The external diameter setting tested thin-walled the lasso 9 and standard thin-walled lasso processed is Ф D=290 mm, the external diameter upper deviation of tested thin-walled lasso 9 is 0, the external diameter lower deviation of tested thin-walled lasso 9 is-h=-0.018 mm, and the ellipticity error of tested thin-walled lasso 9 external diameter is h
1=0.019mm, the wall thickness=3.5mm of tested thin-walled lasso 9, the external diameter upper deviation and the lower deviation of standard thin-walled lasso are 0.
Measuring method of the present invention is as follows:
Composition graphs 1, scaffold tower 2 is horizontally fixed on above base 1 by sunk screw 3, scaffold tower 2 is respectively arranged with vertical dovetail groove and inclination dovetail groove, the angle of described inclination dovetail groove and described vertical dovetail groove is 45 °, the dovetail groove that tilts described in Fig. 1 is the left side being arranged on described vertical dovetail groove, and the right that described inclination dovetail groove is arranged on described vertical dovetail groove is feasible equally.The diameter of scaffold tower 2 can be determined according to the diameter of tested thin-walled lasso 9 and match, and because scaffold tower 2 is horizontally disposed, therefore can not cause tested thin-walled lasso 9 that artificial distortion occurs.
Respectively by the mobile fulcrum 8 of dovetail screw attachment two in described inclination dovetail groove and described vertical dovetail groove, two mobile fulcrums 8 are by internal thread hole and described dovetail screw attachment, the mobile fulcrum connected in described vertical dovetail groove is called vertical fulcrum, the mobile fulcrum that described inclination dovetail groove connects is called collateral point, dial framework 6 is connected with in the upper end of described vertical dovetail groove, association list holder 5 on dial framework 6, the screw 7 that the endoporus of table holder 5 is configured by its side is for the upper meter rod of fixing survey table 4, the gauge head this ensures that thering survey table 4 vertically points to described vertical fulcrum.
The spacing of described vertical fulcrum and described collateral point is tentatively adjusted according to the external diameter of described standard thin-walled lasso, again described standard thin-walled lasso is placed on described vertical fulcrum and described collateral point, upwards finely tune and fix described vertical fulcrum, described standard thin-walled lasso is made to contact the gauge head of survey table 4 and the dial plate rotating survey table 4 makes it aim at 0, finely tune simultaneously and fix described collateral point, at this moment spacing=described Ф D=290 the mm of gauge head to described vertical fulcrum of table 4 is surveyed, the survey table 4 that measuring method selected range of the present invention is ± 0.1mm, precision is 0.001mm.
Loosen screw 7 and make that survey table 4 is micro-downward vertically to be moved, gib screw 7 during table sensing 2 h=0.036 mm to be measured, now the measurement range of survey table 4 just controls at 0 ~ 2 h namely between 0 ~ 0.036 mm, and this measurement range can meet the measurement demand of tested thin-walled lasso 9.Attention: because the ergometry surveying table 4 is less, therefore also can not cause measurement distortion to tested thin-walled lasso 9, reduce due to measurement the rejection rate that tested thin-walled lasso 9 produces.
Take out described standard thin-walled lasso and change tested thin-walled lasso 9, rotate along described collateral point and described vertical fulcrum direction more than tested thin-walled lasso 9 one encloses, advise rotating counterclockwise tested thin-walled lasso 9 as shown in by Fig. 1, maximal value A and minimum value B can be read from survey table 4, suppose the maximal value A=0.015 mm read, minimum value B=0.005 mm.
As (A+B)/2=(0.015+0.005)/2=0.01mm≤h=0.018 mm and A-B=0.015-0.005=0.01mm≤h
1during=0.019mm, illustrate that the tested outer diameter tolerance of tested thin-walled lasso 9 and tested ellipticity error all meet its processing request.
In like manner:
As (A+B)/2≤h but A-B > h
1time, illustrate that the tested outer diameter tolerance of tested thin-walled lasso meets its processing request but tested ellipticity error does not meet its processing request.
As (A+B)/2 > h but A-B≤h
1time, illustrate that the tested ellipticity error of tested thin-walled lasso meets its processing request but tested outer diameter tolerance does not meet its processing request.
As (A+B)/2 > h and A-B > h
1time, illustrate that the tested outer diameter tolerance of tested thin-walled lasso and tested ellipticity error all do not meet its processing request.
By above statement, measuring method of the present invention is simple and practical, improves the measurement efficiency of thin-walled lasso, alleviates the difficulty brought because measuring thin-walled lasso.
The embodiment selected in this article in order to open the present invention, currently thinks to be suitable for, but will be appreciated that: the present invention is intended to comprise all changes belonging to the embodiment in this design and the scope of the invention and improvement.
Claims (1)
1. the measuring method of a thin-walled lasso outer diameter tolerance and ovality, the external diameter setting tested thin-walled lasso (9) and the standard thin-walled lasso processed is Ф D, the external diameter upper deviation of tested thin-walled lasso (9) is 0, the external diameter lower deviation of tested thin-walled lasso (9) is-h, and the ellipticity error of tested thin-walled lasso (9) external diameter is h
1, the external diameter upper deviation and the lower deviation of standard thin-walled lasso are 0, it is characterized in that:
Scaffold tower (2) is horizontally fixed on base (1) top by sunk screw (3), scaffold tower (2) is respectively arranged with vertical dovetail groove and inclination dovetail groove, the angle of described inclination dovetail groove and described vertical dovetail groove is 45 °, respectively by dovetail screw attachment two mobile fulcrums (8) in described inclination dovetail groove and described vertical dovetail groove, the mobile fulcrum connected in described vertical dovetail groove is called vertical fulcrum, the mobile fulcrum that described inclination dovetail groove connects is called collateral point, dial framework (6) is connected with in the upper end of described vertical dovetail groove, the upper association list holder (5) of dial framework (6), the screw (7) that the endoporus of table holder (5) is configured by its side surveys for fixing the upper meter rod showing (4), the gauge head this ensures that thering survey table (4) vertically points to described vertical fulcrum, the spacing of described vertical fulcrum and described collateral point is tentatively adjusted according to the external diameter of described standard thin-walled lasso, again described standard thin-walled lasso is placed on described vertical fulcrum and described collateral point, upwards finely tune and fix described vertical fulcrum, the gauge head making described standard thin-walled lasso contact survey table (4) also rotates the dial plate surveying table (4) makes it aim at 0, finely tune simultaneously and fix described collateral point, at this moment surveying the spacing of gauge head to the described vertical fulcrum=described Ф D of table (4), loosen screw (7) and make that survey table (4) is micro-downward vertically to be moved, gib screw (7) when table to be measured (4) points to 2 h, the measurement range now surveying table (4) just controls between 0 ~ 2 h, take out described standard thin-walled lasso and change tested thin-walled lasso (9), rotate along described collateral point and described vertical fulcrum direction more than tested thin-walled lasso (9) encloses, maximal value A and minimum value B can be read, as (A+B)/2≤h and A-B≤h from survey table (4)
1time, illustrate that the tested outer diameter tolerance of tested thin-walled lasso (9) and tested ellipticity error all meet its processing request, as (A+B)/2≤h but A-B > h
1time, illustrate that the tested outer diameter tolerance of tested thin-walled lasso (9) meets its processing request but tested ellipticity error does not meet its processing request, as (A+B)/2 > h but A-B≤h
1time, illustrate that the tested ellipticity error of tested thin-walled lasso (9) meets its processing request but tested outer diameter tolerance does not meet its processing request, as (A+B)/2 > h and A-B > h
1time, illustrate that the tested outer diameter tolerance of tested thin-walled lasso (9) and tested ellipticity error all do not meet its processing request.
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| CN201310008974.XA CN103063183B (en) | 2013-01-11 | 2013-01-11 | Method of measuring outer diameter tolerance and ovality of thin-walled loop |
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| CN201310008974.XA CN103063183B (en) | 2013-01-11 | 2013-01-11 | Method of measuring outer diameter tolerance and ovality of thin-walled loop |
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| CN103063183A CN103063183A (en) | 2013-04-24 |
| CN103063183B true CN103063183B (en) | 2015-06-03 |
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Citations (7)
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|---|---|---|---|---|
| US5471406A (en) * | 1992-04-14 | 1995-11-28 | Carl Zeiss-Stiftung | Method of measuring elemental shapes of a workpiece on a coordinate measuring machine |
| JPH10103948A (en) * | 1996-09-30 | 1998-04-24 | Tokyo Seimitsu Co Ltd | Method of setting measuring conditions for surface roughness shape measuring apparatus and apparatus therefor |
| US6272762B1 (en) * | 1999-09-15 | 2001-08-14 | Gas Research Institute | Ovality measurement method and apparatus |
| CN201072331Y (en) * | 2007-09-26 | 2008-06-11 | 洛阳轴研科技股份有限公司 | Improved structure of testing apparatus for linearity and conicity of bearing sleeve exterior diameter |
| CN201193943Y (en) * | 2008-04-17 | 2009-02-11 | 程钢 | Adjustable outer cone measuring tool |
| CN101526332A (en) * | 2009-03-23 | 2009-09-09 | 洛阳轴研科技股份有限公司 | Method for measuring inside and outside diameter deflection of soft bearing retainer by means of three-point fix circle-formation |
| CN201876254U (en) * | 2010-12-02 | 2011-06-22 | 洛阳轴研科技股份有限公司 | Measuring instrument for detecting ellipticity of circular workpiece |
-
2013
- 2013-01-11 CN CN201310008974.XA patent/CN103063183B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5471406A (en) * | 1992-04-14 | 1995-11-28 | Carl Zeiss-Stiftung | Method of measuring elemental shapes of a workpiece on a coordinate measuring machine |
| JPH10103948A (en) * | 1996-09-30 | 1998-04-24 | Tokyo Seimitsu Co Ltd | Method of setting measuring conditions for surface roughness shape measuring apparatus and apparatus therefor |
| US6272762B1 (en) * | 1999-09-15 | 2001-08-14 | Gas Research Institute | Ovality measurement method and apparatus |
| CN201072331Y (en) * | 2007-09-26 | 2008-06-11 | 洛阳轴研科技股份有限公司 | Improved structure of testing apparatus for linearity and conicity of bearing sleeve exterior diameter |
| CN201193943Y (en) * | 2008-04-17 | 2009-02-11 | 程钢 | Adjustable outer cone measuring tool |
| CN101526332A (en) * | 2009-03-23 | 2009-09-09 | 洛阳轴研科技股份有限公司 | Method for measuring inside and outside diameter deflection of soft bearing retainer by means of three-point fix circle-formation |
| CN201876254U (en) * | 2010-12-02 | 2011-06-22 | 洛阳轴研科技股份有限公司 | Measuring instrument for detecting ellipticity of circular workpiece |
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| CN103063183A (en) | 2013-04-24 |
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Effective date of registration: 20180509 Address after: 471000 No. 1 axis research road, Jianxi science and Technology Industrial Park, Luoyang, Henan Patentee after: Luoyang Bearing Research Institute Address before: 471039 Fenghua Road 6, hi tech Development Zone, Luoyang, Henan. Patentee before: Zhouyan Science and Technology Co., Ltd., Luoyang |
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