CN104677319B - A kind of method of measuring center line - Google Patents
A kind of method of measuring center line Download PDFInfo
- Publication number
- CN104677319B CN104677319B CN201310627086.6A CN201310627086A CN104677319B CN 104677319 B CN104677319 B CN 104677319B CN 201310627086 A CN201310627086 A CN 201310627086A CN 104677319 B CN104677319 B CN 104677319B
- Authority
- CN
- China
- Prior art keywords
- load frame
- nail
- center line
- center
- covering
- 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.)
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Links
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000002474 experimental method Methods 0.000 abstract description 2
- 238000002955 isolation Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 210000002445 nipple Anatomy 0.000 description 2
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/22—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes
- G01B21/24—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes for testing alignment of axes
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
- Packaging Of Machine Parts And Wound Products (AREA)
Abstract
The invention belongs to a kind of measuring method, it is related to a kind of method of inside and outside isolation positioning.A kind of method of measuring center line, comprises the following steps：The first step, on the inside of covering, respectively load frame the right and left respectively at least measure three nail centers to load frame web surface distance.Second step, in outer side, respectively using above-mentioned at least six nail center as the center of circle, each nail center is drawn to the distance of load frame web surface for radius justifies, at load frame, load frame the right and left does the tangent line of at least three circles respectively, and the position of this two tangent lines corresponds to the load frame web surface on the inside of covering respectively；3rd step, takes the symmetrical center line of two tangent lines, and the position of the symmetrical center line is alignd with the symmetrical center line of load frame.The present invention can be positioned quickly, can be found the center of part after one-time positioning accurately, be improved efficiency of assembling.Experiment proves that efficiency of assembling improves more than 3 times.
Description
Technical field
The invention belongs to a kind of measuring method, it is related to a kind of method of inside and outside isolation positioning.
Background technology
In assembling, it is load frame that need to be installed in outer side on the inside of landing nipple, covering, need to ensure that landing nipple is symmetrical
Center line aligns with load frame symmetrical center line；Due in the middle of the two across covering, it is impossible to directly contrast.
The content of the invention
The purpose of the present invention is：Solve the problem of covering can not align Central of the parts line, method is simple and easy to operate.
The technical scheme is that：A kind of method of measuring center line, comprises the following steps：
The first step, on the inside of covering, respectively at least measure three nail centers to load frame in load frame the right and left respectively
The distance of web surface.
Second step, in outer side, respectively using above-mentioned at least six nail center as the center of circle, each nail center to load frame
The distance of web surface is that radius draws circle, and at load frame, load frame the right and left does the tangent line of at least three circles respectively, this
The position of two tangent lines corresponds to the load frame web surface on the inside of covering respectively；
3rd step, takes the symmetrical center line of two tangent lines, and the position of the symmetrical center line is the symmetrical centre with load frame
Line aligns.
In the first step, when choosing nail, upper end nail, middle part nail, three nail of lower end nail are taken respectively per side.
It is an advantage of the invention that：It can quickly position, the center of part can be found after one-time positioning accurately, improve dress
With efficiency.Experiment proves that efficiency of assembling improves more than 3 times.
Brief description of the drawings
Fig. 1 is interior side draw point schematic diagram；
Fig. 2 is outside line positioning schematic diagram.Wherein 1 represents load frame；2 represent covering.
Embodiment
This measuring method is described in further details below.
A kind of method of measuring center line, comprises the following steps：
The first step, on the inside of covering, three nail are respectively selected in load frame the right and left respectively, on selected nail is respectively
The nail at end, middle part and lower end, the distance of measuring center to load frame web surface is recorded as a1, a2, a3；b1,b2,b3；Referring to
Accompanying drawing 1.
Second step, in outer side, respectively using above-mentioned 6 nail centers as the center of circle, each nail center to load frame web
The distance in face is that radius draws circle, and three round tangent lines are made respectively in the right and left, and the position of this two tangent lines corresponds to covering respectively
The load frame web surface of inner side；Referring to accompanying drawing 2.
3rd step, takes the symmetrical center line of two tangent lines, and the position of the symmetrical center line is the symmetrical centre with load frame
Line aligns.
Claims (2)
1. a kind of method of measuring center line, it is characterized in that, comprise the following steps：
The first step, on the inside of covering, respectively at least measure three nail centers to load frame web in load frame the right and left respectively
The distance in face；
Second step, in outer side, respectively using above-mentioned at least six nail center as the center of circle, each nail center to load frame web
The distance in face is that radius draws circle, and at load frame, load frame the right and left does the tangent line of at least three circles respectively, this two
The position of tangent line corresponds to the load frame web surface on the inside of covering respectively；
3rd step, takes the symmetrical center line of two tangent lines, and the position of the symmetrical center line is the symmetrical center line pair with load frame
Together.
2. a kind of method of measuring center line as claimed in claim 1, it is characterized in that, in the first step, when choosing nail, per side
Upper end nail, middle part nail, three nail of lower end nail are taken respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310627086.6A CN104677319B (en) | 2013-12-02 | 2013-12-02 | A kind of method of measuring center line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310627086.6A CN104677319B (en) | 2013-12-02 | 2013-12-02 | A kind of method of measuring center line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104677319A CN104677319A (en) | 2015-06-03 |
| CN104677319B true CN104677319B (en) | 2017-08-25 |
Family
ID=53312690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310627086.6A Active CN104677319B (en) | 2013-12-02 | 2013-12-02 | A kind of method of measuring center line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104677319B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3035880B2 (en) * | 1994-07-15 | 2000-04-24 | 株式会社東京精密 | Method and apparatus for designating geometric combination element in coordinate measuring machine |
| CN1746462B (en) * | 2004-09-10 | 2010-09-01 | 复盛股份有限公司 | Spiral rotor mechanism |
| CN201941432U (en) * | 2010-12-28 | 2011-08-24 | 北京中铁房山桥梁有限公司 | Adjustable drawing compass for centerline of beam ends |
| CN203126261U (en) * | 2013-02-25 | 2013-08-14 | 福建省厦门第六中学 | Arbitrary angle trisection drawing board |
-
2013
- 2013-12-02 CN CN201310627086.6A patent/CN104677319B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104677319A (en) | 2015-06-03 |
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| GR01 | Patent grant |