CN107202528A - A kind of flareless pipe joint termination dimension measuring device - Google Patents
A kind of flareless pipe joint termination dimension measuring device Download PDFInfo
- Publication number
- CN107202528A CN107202528A CN201710495207.4A CN201710495207A CN107202528A CN 107202528 A CN107202528 A CN 107202528A CN 201710495207 A CN201710495207 A CN 201710495207A CN 107202528 A CN107202528 A CN 107202528A
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- China
- Prior art keywords
- pipe joint
- flareless pipe
- flareless
- measuring device
- joint part
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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
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
Abstract
A kind of flareless pipe joint termination dimension measuring device, belongs to test, field of measuring technique.The flareless pipe joint termination dimension measuring device includes steel ball, ball seat and screw micrometer；The ball seat is cavity structure, and the first internal thread coordinated with measured flareless pipe joint part is provided with its front end, and rear end is provided with the second internal thread coordinated with screw micrometer；The steel ball is arranged in the cavity inside ball seat by floating assembly mode, steel ball size D2Diameter dimension d with being measured flareless pipe joint inner bore of part P points2It is corresponding；The measurement head of the screw micrometer is penetrated in ball seat cavity, and the steel ball with floating assembly is inconsistent.The present invention improves the measurement accuracy of flareless pipe joint part, has reached manufacture or the purpose of maintenance cost of the percent defective and flareless pipe joint part of the flareless pipe joint part of reduction by the accurate measurement to flareless pipe joint part A values.
Description
Technical field
The present invention relates to a kind of measurement apparatus, especially a kind of termination size for the flareless pipe joint of fluid pressure line is surveyed
Device is measured, belongs to test, field of measuring technique.
Background technology
As shown in Figure 1, a kind of flareless pipe joint zero of fluid pressure line being applied on industry and national defence special equipment
Part 1, the hydraulic pressure strength of the hydraulic system is big, and fluid pressure line is tube material, and measure of precision is very high, it is desirable to interface position
Error very little, its termination position outer tube diameter be D, and provided with conicity angles alpha=24 ° endoporus 1-1, the osculum of the endoporus 1-1
Hold a diameter of d1, the flareless pipe joint part 1 is d in interior hole 1-1 apertures with set tube components2Position at (i.e. P in accompanying drawing 1
Point) coordinated in linear contact lay mode, the aperture is d2(P points in accompanying drawing 1) is away from the flareless threshold value of pipe joint part 1 at position
For A, in order to ensure the matching relationship of the flareless pipe joint part 1 and set tube components, according to relevant technical requirements, this is flareless
The A values of pipe joint part 1 are crucial control size, and the A values margin of tolerance is -0.12 to+0.12, therefore in flareless pipe joint zero
Part 1 to the A values of flareless pipe joint part 1 with that before sleeve pipe component assembly, need to detect.
In the prior art, for the test problems of flareless pipe joint part A values, translucency experiment is carried out using feeler gauge,
Judge whether flareless pipe joint part meets the requirements by qualitative detection mode.Because parts are manufactured in precision instrument and equipment
Cost is higher, is detected in above-mentioned qualitative detection mode, it is impossible to accurately measure the deviation of flareless pipe joint part A values, special
It is not for the flareless pipe joint part in critical condition, easily to cause erroneous judgement, cause part scrap rate to be lifted, so that
Add manufacture or the maintenance cost of flareless pipe joint part.
The content of the invention
The present invention provides a kind of flareless pipe joint termination dimension measuring device, it is intended to by flareless pipe joint part
The accurate measurement of A values, reaches and improves the measurement accuracy of flareless pipe joint part, reduces flareless pipe joint part scrap rate
Purpose.
To achieve the above object, the present invention is adopted the following technical scheme that：
A kind of flareless pipe joint termination dimension measuring device, it includes steel ball, ball seat and screw micrometer；The ball seat
For cavity structure, the first internal thread coordinated with measured flareless pipe joint part is provided with its front end, rear end is provided with and spiral shell
Revolve the second internal thread that micrometer coordinates；The steel ball is arranged in the cavity inside ball seat by floating assembly mode, steel ball
Diameter D2Diameter dimension d with being measured flareless pipe joint inner bore of part P points2It is corresponding；The measurement head of the screw micrometer
Penetrate in ball seat cavity, the steel ball with floating assembly is inconsistent.
Above-mentioned flareless pipe joint termination dimension measuring device, the steel ball sizeα is measured nothing in formula
The taper angle of flared coupling part termination position endoporus.
Above-mentioned flareless pipe joint termination dimension measuring device, the steel ball is suspended on by the one group of spring intersected vertically
In ball seat internal cavities, correspondingly, orthogonal spring receiving hole is set in ball seat central cavity.
Above-mentioned flareless pipe joint termination dimension measuring device, on the horizontal scale line of the screw micrometer mark with
The corresponding datum line B of flareless pipe joint part A values, and screw micrometer rotating scale line C area identifications with it is flareless
The corresponding amount of deflection up and down of pipe joint part A values.
Above-mentioned flareless pipe joint termination dimension measuring device sets up one group of adjust pad (2-5), the adjust pad (2-
5) it is placed in the outer shroud end that ball seat (2-2) is in contact with the measurement head (2-4-1).
The present invention achieves following beneficial effect after above-mentioned technical proposal is taken：
Flareless pipe joint termination dimension measuring device of the present invention is by the steel ball that is sized with measured without expansion
Mouth pipe joint part termination inner hole, can accurately be determined away from the P points position that flareless pipe joint part threshold value is A,
Then the upper deviation or lower deviation of A values are read exactly by screw micrometer, is achieved in connecing to being measured flareless pipe
The quantitative detection of head part A values；The present invention can be led by accurately being picked out by pipe joint A values size dimension using flareless
Pipe selects assembly technology, not only ensures assembling quality, and can reduce the effect of maintenance cost.
The present invention meets the same of measured workpiece, steel ball and screw micrometer measurement head by the steel ball of floating assembly
Axle degree requirement, it is ensured that the accuracy of measurement result.As can be seen here, the present invention passes through the standard to flareless pipe joint part A values
Really measurement, improves the measurement accuracy of flareless pipe joint part, particularly to the flareless pipe joint zero in critical condition
For part, it can accurately judge whether flareless pipe joint part meets technical requirements by measured value and standard value comparison, reach
Manufacture or the purpose of maintenance cost of the percent defective and flareless pipe joint part of the flareless pipe joint part of reduction are arrived.
Brief description of the drawings
Fig. 1 is flareless pipe joint design of part schematic diagram；
Fig. 2 is schematic structural view of the invention；
Fig. 3 is M-M cross-sectional views in Fig. 2；
Fig. 4 is ball seat cross-sectional view；
Fig. 5 is flareless pipe joint termination dimension measuring device working state schematic representation of the present invention；
Fig. 6 is the rotating scale line C regional implementation schematic diagrames of screw micrometer；
Fig. 7 is flareless pipe joint termination dimension measuring device fundamental diagram of the present invention.
Each list of reference numerals is in figure：1st, flareless pipe joint part, 1-1, endoporus, 2, the dimensional measurement of pipe joint termination dress
Put, 2-1, steel ball, 2-2, ball seat, 2-2-1, the first internal thread, 2-2-2, spring accommodating chamber, 2-2-3, the second internal thread, 2-3,
Spring, 2-4, screw micrometer, 2-4-1, measurement head, 2-5, adjusting pad.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment the invention will be further described.
Referring to Fig. 2, Fig. 4, a kind of flareless pipe joint termination dimension measuring device 2 of the present invention include steel ball 2-1,
Ball seat 2-2 and screw micrometer 2-4；The ball seat 2-2 is cavity structure, is provided with its front end with being measured flareless pipe joint
The first internal thread 2-2-1 that part 1 coordinates, rear end is provided with the second internal thread 2-2-3 coordinated with screw micrometer 2-4；It is described
Steel ball 2-1 is arranged on by floating assembly mode in ball seat 2-2 internal cavities, steel ball sizeD in formula2It is tested
The diameter dimension of P points in the flareless endoporus 1-1 of pipe joint part 1 is measured, α is to be measured the flareless termination position of pipe joint part 1
Endoporus 1-1 taper angle, can correspondingly set one group of different-diameter size for the flareless pipe joint part 1 of different tube diameters accordingly
Steel ball, preferred embodiment see the table below (due to d2For theoretical size value, it is with being measured flareless pipe joint part termination position
Outer tube diameter D is one-to-one relationship, for ease of practical operation, is listed in table and different flareless pipe joint part termination positions
The diameter dimension D of the corresponding one group of steel ball of outer tube diameter D2)。
| D | 5 | 6 | 8 | 10 |
| D2 | 6.646 | 7.668 | 9.712 | 11.756 |
Referring to Fig. 2, Fig. 4, in a kind of flareless pipe joint termination dimension measuring device 2 of the present invention, the spiral shell
Rotation micrometer 2-4 measurement head 2-4-1 is penetrated in ball seat 2-2 cavitys, and the steel ball 2-1 with floating assembly is inconsistent.
Referring to Fig. 2, Fig. 3, in pipe joint termination of the present invention dimension measuring device 2, the steel ball 2-1 passes through vertical
One group of intersecting spring 2-3 is suspended in ball seat 2-2 internal cavities, correspondingly, sets mutual in ball seat 2-2 central cavities
Vertical spring receiving hole 2-2-2.
Referring to Fig. 2, Fig. 5, Fig. 6, in pipe joint termination of the present invention dimension measuring device 2, the screw micrometer
Datum line B, the datum line B is identified on 2-4 horizontal scale line relative with the A values of standard compliant flareless pipe joint part
Should, separately set up the adjust pad 2-5 for ensureing datum line B one group of different-thickness corresponding with A values, when datum line B and A values not
Can be by selecting suitable adjust pad 2-5 to be placed on the outer shroud that ball seat 2-2 is in contact with the measurement head 2-4-1 during to correspondence
End, makes datum line B corresponding with A values, in this, as the benchmark of measurement flareless pipe joint termination size.The present invention is in spiral shell
Revolve rotating scale line C area identifications corresponding with flareless pipe joint part A the values amount of deflection, the variation up and down of micrometer
Interval value is ± 0.12.
Referring to Fig. 5, Fig. 6, Fig. 7, flareless pipe joint termination dimension measuring device 2 of the present invention is by setting diameter chi
Very little D2Steel ball 2-1 and measured flareless pipe joint part termination endoporus 1-1 coordinate, can accurately determine to connect away from flareless pipe
The P points position that head part 1 threshold value is A.In the figure 7, PB is steel ball radius D2/ 2, PC are to be measured flareless pipe joint zero
The radius d of P points in the endoporus 1-1 of part 12/ 2, each several part geometrical relationship can be derived in figure
I.e.：Thus draw：Flareless pipe joint termination dimension measuring device 2 of the present invention can lead to
The upper deviation or lower deviation that screw micrometer 2-4 reads A values exactly are crossed, Fig. 5 is the A values to flareless pipe joint part 1
Specific embodiment is measured, for detecting flareless pipe joint part of the A values for 0.24mm, therefore by flareless pipe joint part A
The numerical benchmark of value is set as 0.24mm, and correspondingly datum line B is set on horizontal scale line at 0.24mm numerical value position, is surveying
During amount, screw micrometer 2-4 vernier is located at datum line B near zones, when negative scale value in rotating scale line C regions
When being aligned with the datum line of screw micrometer, the numerical value of reading is A value lower deviations；When positive number is carved in rotating scale line C regions
When angle value is aligned with the datum line of screw micrometer, the numerical value of reading is the A value upper deviations.
Claims (5)
1. a kind of flareless pipe joint termination dimension measuring device, it is characterized in that, pipe joint termination dimension measuring device (2)
Including steel ball (2-1), ball seat (2-2) and screw micrometer (2-4)；The ball seat (2-2) is cavity structure, is provided with its front end
The first internal thread (2-2-1) coordinated with measured flareless pipe joint part (1), rear end is provided with and screw micrometer (2-4)
The second internal thread (2-2-3) coordinated；The inside that the steel ball (2-1) is arranged on ball seat (2-2) by floating assembly mode is empty
In chamber, the steel ball size D2 and diameter dimension d for being measured P points in flareless pipe joint part (1) endoporus (1-1)2It is corresponding；Institute
The measurement head (2-4-1) for stating screw micrometer (2-4) is penetrated in ball seat (2-2) cavity, is offseted with the steel ball (2-1) of floating assembly
Touch.
2. a kind of flareless pipe joint termination dimension measuring device according to claim 1, it is characterized in that, the steel ball is straight
Footpathα is the taper angle for being measured flareless pipe joint part (1) termination position endoporus (1-1) in formula.
3. a kind of flareless pipe joint termination dimension measuring device according to claim 2, it is characterized in that, the steel ball
(2-1) is suspended in ball seat (2-2) internal cavities by the one group of spring (2-3) intersected vertically, correspondingly, in ball seat (2-
2) orthogonal spring receiving hole (2-2-2) is set in central cavity.
4. a kind of flareless pipe joint termination dimension measuring device according to claim 3, it is characterized in that, in the spiral
Identify datum line B corresponding with flareless pipe joint part A values on the horizontal scale line of micrometer (2-4), and in thousand points of spiral
The rotating scale line C area identifications of the chi amount of deflection up and down corresponding with flareless pipe joint part A values.
5. a kind of flareless pipe joint termination dimension measuring device according to claim 1, it is characterized in that, it is described flareless
Pipe joint termination dimension measuring device sets up one group of adjust pad (2-5), the adjust pad (2-5) be placed in ball seat (2-2) with
The outer shroud end that the measurement head (2-4-1) is in contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710495207.4A CN107202528B (en) | 2017-06-26 | 2017-06-26 | Non-flaring pipe joint end size measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710495207.4A CN107202528B (en) | 2017-06-26 | 2017-06-26 | Non-flaring pipe joint end size measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107202528A true CN107202528A (en) | 2017-09-26 |
| CN107202528B CN107202528B (en) | 2023-04-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710495207.4A Active CN107202528B (en) | 2017-06-26 | 2017-06-26 | Non-flaring pipe joint end size measuring device |
Country Status (1)
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| CN (1) | CN107202528B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109405697A (en) * | 2018-11-15 | 2019-03-01 | 中国人民解放军第五七二工厂 | A kind of device with centimeter check pipe sleeve sealing line position |
| CN109405707A (en) * | 2018-11-15 | 2019-03-01 | 中国人民解放军第五七二工厂 | A kind of device with micrometer detection pipe sleeve seal line position |
| CN110245439A (en) * | 2019-06-20 | 2019-09-17 | 成都飞机工业（集团）有限责任公司 | A kind of installation error modeling and compensation method being flared conduit |
| CN115540715A (en) * | 2022-11-30 | 2022-12-30 | 北京成立科技有限公司 | Non-flaring pipeline connection installation deviation detection device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109405697A (en) * | 2018-11-15 | 2019-03-01 | 中国人民解放军第五七二工厂 | A kind of device with centimeter check pipe sleeve sealing line position |
| CN109405707A (en) * | 2018-11-15 | 2019-03-01 | 中国人民解放军第五七二工厂 | A kind of device with micrometer detection pipe sleeve seal line position |
| CN110245439A (en) * | 2019-06-20 | 2019-09-17 | 成都飞机工业（集团）有限责任公司 | A kind of installation error modeling and compensation method being flared conduit |
| CN115540715A (en) * | 2022-11-30 | 2022-12-30 | 北京成立科技有限公司 | Non-flaring pipeline connection installation deviation detection device |
| CN115540715B (en) * | 2022-11-30 | 2023-03-24 | 北京成立科技有限公司 | Non-flaring pipeline connection installation deviation detection device |
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| Publication number | Publication date |
|---|---|
| CN107202528B (en) | 2023-04-14 |
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