CN105973160B - Inspection method for the deformation of square hole retainer pocket hole crossbeam bend - Google Patents
Inspection method for the deformation of square hole retainer pocket hole crossbeam bend Download PDFInfo
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- CN105973160B CN105973160B CN201610428959.4A CN201610428959A CN105973160B CN 105973160 B CN105973160 B CN 105973160B CN 201610428959 A CN201610428959 A CN 201610428959A CN 105973160 B CN105973160 B CN 105973160B
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- line
- crossbeam
- auxiliary line
- pocket hole
- retainer
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
- G01B11/167—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge by projecting a pattern on the object
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
A kind of inspection method for the deformation of square hole retainer pocket hole crossbeam bend.The method of destructible retainer original structure when the present invention solves low inspection result accuracy existing for the existing inspection method for the deformation of square hole retainer pocket hole crossbeam bend and inspection, corresponding crossbeam auxiliary line is made by the inward flange line that two crossbeam projections are projected relative to pocket hole, the midpoint of two crossbeam auxiliary lines and line are chosen, does first auxiliary line perpendicular to pocket hole curb girder in the midpoint of its line；The inward flange line that pawl projection project relative to pocket hole is split along two make and split pawl auxiliary line accordingly, choose midpoint that two are split pawl auxiliary line simultaneously line, do second auxiliary line perpendicular to pocket hole curb girder in the midpoint of its line；The distance between first auxiliary line and the second auxiliary line value are greater than or equal to 0.1mm, then it represents that more apparent bending occurs in retainer crossbeam.The present invention is used for the detection of retainer deformation.
Description
Technical field
The present invention relates to a kind of inspection methods, and in particular to a kind of inspection for the deformation of square hole retainer pocket hole crossbeam bend
Checking method.
Background technique
Under normal conditions, it is split in retainer lock point and easily leads to retainer crossbeam bend in pawl process, process qualification
Retainer pocket hole is face contact in the contact process with rolling element, but between the retainer pocket hole and rolling element of crossbeam bend
Abnormal contact is point contact, the distribution schematic diagram of contact point 1 when Fig. 1 show abnormal contact, in order to guarantee square hole retainer pocket
The machining accuracy in hole should control it in terms of two；First is that parallel error of the pocket hole curb girder to basal plane, second is that pocket hole crossbeam
To the vertical difference of basal plane；But both methods of inspection can not effectively detect the lock point on crossbeam and chop hole to split pawl curved to crossbeam sometimes
Bent influence occurs on crossbeam the main reason is that lock point splits pawl processing, on curb girder substantially without influence, so crossbeam bend is not
Influence the precision of curb girder parallel error；And after vertical difference mainly passes through " three coordinates " measuring instrument to cross beam contacting surface measuring point, pass through
The point virtual plane measured is split pawl because the intermediate position in retainer crossbeam exists, is caused come the verticality for measuring it to basal plane
Part measuring point can not acquire, or acquisition is less, and the crossbeam plane that when detection fictionalizes equally can not be accurate to the vertical difference of basal plane
Reflect horizontal deflection of beam situation；And retainer must also be destroyed with contourgraph inspection, it therefore, need to be to the rectangular pocket of retainer
The crossbeam bend in hole finds a suitable inspection method.
Summary of the invention
The present invention is to solve existing for the existing inspection method for the deformation of square hole retainer pocket hole crossbeam bend
When inspection result accuracy is low and checks the problem of destructible retainer original structure, and then provide a kind of for square hole holding
The inspection method of frame pocket hole crossbeam bend deformation.
Used technical solution is the present invention to solve above-mentioned technical problem:
For the inspection method of square hole retainer pocket hole crossbeam bend deformation, steps are as follows:
One, square hole retainer is placed on the monitor station of three dimensional optical measuring instrument, makes the pocket hole of square hole retainer and thrown
Shadow direction is vertical；
Two, according to the image feature for being passed to computer after the projection of three dimensional optical measuring instrument, pocket hole two is acquired in a computer
The position of a crossbeam projection, and make corresponding crossbeam relative to the inward flange line that pocket hole projects by two crossbeam projections and assist
Line, crossbeam auxiliary line are the line for two intersection points that crossbeam is projected relative to the pocket hole inward flange line projected and curb girder projection, choosing
The midpoint of two crossbeam auxiliary lines and line are taken, does one perpendicular to the first of pocket hole curb girder in the midpoint of its line
Auxiliary line；
Three, using method identical with step 2, the position of pawl is split in acquired projections pocket hole in a computer, takes two
It splits the inward flange line that pawl projection project relative to pocket hole and does and split pawl auxiliary line accordingly, two length for splitting pawl auxiliary line and pocket hole
The length for splitting pawl is consistent, and is chosen the midpoint that two are split pawl auxiliary line and line, is done one in the midpoint of its line
Second auxiliary line of the item perpendicular to pocket hole curb girder；
Four, the distance between the first auxiliary line and the second auxiliary line are measured, is greater than when measuring resulting distance value
Or when being equal to 0.1mm, then it represents that more apparent bending occurs in retainer crossbeam.
The present invention has the effect that compared with prior art
The projection of retainer pocket hole is measured using three dimensional optical measuring instrument and is compared, without destroying retainer structure energy
It is enough effectively to check horizontal deflection of beam situation in pocket hole；By being surveyed to the retainer that crossbeam bend does not occur after using
Amount, obtaining the accuracy of the distance between its first auxiliary line and the second auxiliary line is 0.01mm, and passes through the holding to crossbeam bend
The accuracy of the distance between first auxiliary line and the second auxiliary line that frame measures are typically greater than or equal to 0.1mm, use
The inspection result that inspection method of the present invention obtains is more acurrate.
Detailed description of the invention
Fig. 1 is that square cage pocket is bent crossbeam schematic diagram；
Fig. 2 is by crossbeam and splits pawl auxiliary line schematic diagram for doing under the projection of three dimensional optical measuring instrument.
Specific embodiment
Specific embodiment 1: illustrating present embodiment in conjunction with Fig. 1 and Fig. 2, it to be used for square hole retainer pocket hole crossbeam bend
The inspection method of deformation, steps are as follows:
One, square hole retainer is placed on the monitor station of three dimensional optical measuring instrument, makes the pocket hole 2 of square hole retainer and thrown
Shadow direction is vertical；
Two, according to the image feature for being passed to computer after the projection of three dimensional optical measuring instrument, pocket hole two is acquired in a computer
The position of a crossbeam projection 30, and corresponding crossbeam is made relative to the inward flange line of pocket hole projection by two crossbeam projections 30
Auxiliary line 10, crossbeam auxiliary line 10 are that crossbeam projects the inward flange line and two intersection points of curb girder projection projected relative to pocket hole
Line chooses the midpoint of two crossbeam auxiliary lines 10 and line, does one perpendicular to pocket hole in the midpoint of its line
First auxiliary line 11 of curb girder；
Three, using method identical with step 2, the position that pawl is split in the projection of pocket hole is acquired in a computer, takes two to split
Pawl projection is done relative to the inward flange line that pocket hole projects splits pawl auxiliary line 20 accordingly, and two are split the length and pocket of pawl auxiliary line 20
The length that pawl is split in hole is consistent, and the midpoint that two are split pawl auxiliary line 20 and line is chosen, in the midpoint of its line
Do second auxiliary line 21 perpendicular to pocket hole curb girder；
Four, the distance between the first auxiliary line 11 and the second auxiliary line 21 are measured, when the resulting distance value of measurement
When more than or equal to 0.1mm, then it represents that more apparent bending occurs in retainer crossbeam.
First auxiliary line can also be made perpendicular to the midpoint line of two crossbeam auxiliary lines, and the second auxiliary line can also hang down
Directly pawl auxiliary line is split in two to make.
The first auxiliary line in step 2 and the second auxiliary line in step 3 are perpendicular to pocket hole curb girder and make,
Because curb girder belongs to itself machine-shaping on retainer, can reflect the really vertical case relative to curb girder, avoid because
By inherently do not know whether the first auxiliary line that curved crossbeam is made cannot really reflect whether with pocket hole curb girder
Vertically, cause last measurement result inaccuracy.
It directly takes two to split the inward flange line that pawl projection is projected relative to pocket hole in step 3 and splits pawl auxiliary line 20, energy
It is enough more intuitively to reflect that the center of line between pawl is split in tested pocket hole two sides, it is convenient for subsequent paired observation and survey
Amount.
It is to be measured to the distance between the first auxiliary line and the second auxiliary line in step 4, can takes auxiliary first
It is taken multiple measurements in index contour and the second auxiliary line, caused by avoiding because of the silver coating on retainer surface or other special circumstances accidentally
Difference.
Three dimensional optical measuring instrument of the present invention is the three dimensional optical measuring instrument of OGP company.
Occur that the retainer of crossbeam bend does not occur after retainer crossbeam bend and for the bearing after using, compares
Measurement chooses the retainer of 4 sets of bending crossbeams, totally 56 pocket holes, the accuracy of the distance between the first auxiliary line and the second auxiliary line
For 0.1m (its measured value is mostly 0.18mm, 0.19mm), 4 sets of unbent retainers are chosen, totally 56 pocket holes, the first auxiliary line
It is 0.01m with the accuracy of the distance between the second auxiliary line (its measured value is mostly 0.02mm, 0.04mm).
Specific embodiment 2: illustrating present embodiment in conjunction with Fig. 1 and Fig. 2, the crossbeam auxiliary line 10 in step 2 is logical
Cross what crossbeam projection was made relative to two intersection points of the pocket hole inward flange line projected and curb girder projection.It is designed in this way, can avoid
The position of auxiliary line is set to generate error because of crossbeam bend, to influence final testing result.Other compositions and connection relationship
It is same as the specific embodiment one.
Specific embodiment 3: illustrating present embodiment in conjunction with Fig. 1 and Fig. 2, to the first auxiliary line described in step 4
The distance between 11 and the second auxiliary line 21 measure, and take and carry out not between the first auxiliary line 11 and the second auxiliary line 21
With the multiple measurement of position.It is designed in this way, error caused by avoiding because of the silver coating on retainer surface or other special circumstances.Its
It forms the same as one or two specific embodiments with connection relationship.
Claims (2)
1. a kind of inspection method for the deformation of square hole retainer pocket hole crossbeam bend, it is characterised in that: steps are as follows:
One, square hole retainer is placed on the monitor station of three dimensional optical measuring instrument, makes pocket hole (2) and the projection of square hole retainer
Direction is vertical；
Two, according to the image feature for being passed to computer after the projection of three dimensional optical measuring instrument, two, pocket hole cross is acquired in a computer
Beam projects the position of (30), and makes corresponding crossbeam by the inward flange line that two crossbeam projections (30) project relative to pocket hole
Auxiliary line (10), crossbeam auxiliary line (10) are two friendships that crossbeam projects the inward flange line and curb girder projection projected relative to pocket hole
The line of point chooses the midpoint of two crossbeam auxiliary lines (10) and line, does one vertically in the midpoint of its line
In the first auxiliary line (11) of pocket hole curb girder；
Three, using method identical with step 2, the position that pawl is split in the projection of pocket hole is acquired in a computer, takes two to split pawl throwing
Shade makees the inward flange line that pocket hole projects and splits pawl auxiliary line (20) accordingly, and two are split the length and pocket of pawl auxiliary line (20)
The length that pawl is split in hole is consistent, and the midpoint that two are split pawl auxiliary line (20) and line is chosen, in the middle point of its line
Set the second auxiliary line (21) for doing one perpendicular to pocket hole curb girder；
Four, the distance between the first auxiliary line (11) and the second auxiliary line (21) are measured, when the resulting distance value of measurement
When more than or equal to 0.1mm, then it represents that more apparent bending occurs in retainer crossbeam.
2. the inspection method according to claim 1 for the deformation of square hole retainer pocket hole crossbeam bend, it is characterised in that:
The distance between the first auxiliary line (11) and the second auxiliary line (21) are measured described in step 4, taken auxiliary first
The multiple measurement of different location is carried out between index contour (11) and the second auxiliary line (21).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610428959.4A CN105973160B (en) | 2016-06-16 | 2016-06-16 | Inspection method for the deformation of square hole retainer pocket hole crossbeam bend |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610428959.4A CN105973160B (en) | 2016-06-16 | 2016-06-16 | Inspection method for the deformation of square hole retainer pocket hole crossbeam bend |
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| CN105973160A CN105973160A (en) | 2016-09-28 |
| CN105973160B true CN105973160B (en) | 2019-02-01 |
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| CN201610428959.4A Active CN105973160B (en) | 2016-06-16 | 2016-06-16 | Inspection method for the deformation of square hole retainer pocket hole crossbeam bend |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109604967A (en) * | 2018-12-27 | 2019-04-12 | 中国航发哈尔滨轴承有限公司 | A kind of 40CrNiMoA material retainer splits pawl processing method |
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| RU2047111C1 (en) * | 1991-07-01 | 1995-10-27 | Предприятие N 40 "НИСАР" Научно-производственного объединения "Киевский институт автоматики" | Gear measuring deformation of stand |
| CN102109314A (en) * | 2010-12-21 | 2011-06-29 | 洛阳轴研科技股份有限公司 | Method for measuring central distance of odd number of cylindrical cage pockets |
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| CN105043849A (en) * | 2015-07-08 | 2015-11-11 | 四川大学 | Deep beam test piece for rock I-II composite fracture toughness test and composite fracture toughness test method |
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2016
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| RU2047111C1 (en) * | 1991-07-01 | 1995-10-27 | Предприятие N 40 "НИСАР" Научно-производственного объединения "Киевский институт автоматики" | Gear measuring deformation of stand |
| CN102109314A (en) * | 2010-12-21 | 2011-06-29 | 洛阳轴研科技股份有限公司 | Method for measuring central distance of odd number of cylindrical cage pockets |
| CN103234432A (en) * | 2013-04-25 | 2013-08-07 | 上海核工程研究设计院 | Center-free arc bending radius measuring ruler and bend pipe bending radius measuring method |
| CN104197825A (en) * | 2014-09-26 | 2014-12-10 | 南车株洲电机有限公司 | Detecting method for bearing outer ring profile tolerance |
| CN105043849A (en) * | 2015-07-08 | 2015-11-11 | 四川大学 | Deep beam test piece for rock I-II composite fracture toughness test and composite fracture toughness test method |
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| 圆柱滚子轴承保持架兜孔垂直差测量方法的改进;金文胜;《哈尔滨轴承》;20150331;第36卷(第1期);第37-38页 |
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