CN101876522B - Method for measuring straight-section length of oil groove tiny hole of gem element - Google Patents
Method for measuring straight-section length of oil groove tiny hole of gem element Download PDFInfo
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- CN101876522B CN101876522B CN2009101037337A CN200910103733A CN101876522B CN 101876522 B CN101876522 B CN 101876522B CN 2009101037337 A CN2009101037337 A CN 2009101037337A CN 200910103733 A CN200910103733 A CN 200910103733A CN 101876522 B CN101876522 B CN 101876522B
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- oil groove
- clock gauge
- chaining pin
- gemstone element
- tiny hole
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- A Measuring Device Byusing Mechanical Method (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The invention relates to a method for measuring the straight-section length of an oil groove tiny hole of a gem element. The method comprises the following steps of: (1) installing a survey probe integrally formed by a needle bar and a needle head on a dial gauge to form a special dial gauge for measuring the straight-section length of the oil groove tiny hole of the gem element, wherein the needle head of the survey probe comprises a frustum and a circular-arc top end at the small-diameter end of the frustum; (2) adjusting the position of the survey probe of the dial gauge to ensure that the survey probe contacts the surface of a substrate, rotating the dial gauge to enable the long gauge needle of the dial gauge to aim at a zero scale mark, and zeroing the dial gauge; and (3) placing the gem element on the surface of the substrate, and placing the survey probe of the dial gauge in the oil groove of the gem element to ensure that the axial lead of the survey probe is overlapped with the axial lead of the oil groove of the gem element, wherein when the survey probe falls into the bottom of the oil groove, the survey needle rises, and the numerical valve displayed by the dial gauge is the straight-section length of the oil groove tiny hole. The method can ensure that the measurement precision reaches 0.001 mm, can be used for batch detection, and has the advantage of simple and convenient use.
Description
Technical field
The present invention relates to a kind of measuring method, particularly a kind of oil groove tiny hole straight section measurement of length method of gemstone element.
Background technology
In gemstone element, often have and be provided with vertical fine holes in the gemstone element oil groove, in process, need to measure the straight section length of its micropore, measuring accuracy (aperture≤the 0.10mm that has relatively high expectations, straight hole segment length tolerance≤0.01mm, measuring accuracy≤0.001mm), straight hole segment length tolerance be ± 0.05mm about, adopt 50 times of horizontal projectors or digital display projector to detect usually.This method measuring accuracy is about 0.01mm, can't reach the requirement that measuring accuracy is 0.001mm, and is not suitable for the production scene batch detection.In addition, adopt the digital display projector to detect, because the precision of equipment own, the reviewer changes and factor affecting such as visual custom, make measuring error at ± 0.003mm, also can't reach measuring accuracy is 0.001mm.
The method of dissecing that adopts is also arranged,, detect with the digital display universal tool-measuring microscope then, also can accurately measure gemstone element straight hole segment length the gemstone element dimidiation of band oil groove tiny hole.Though this method can reach the requirement that measuring accuracy is 0.001mm, this mode is destructive to be detected, and makes gemstone element not re-use.
The measuring accuracy of clock gauge can reach 0.001mm, but clock gauge can't directly detect the straight section length of gemstone element groove micropore, and causes the fragmentation of gemstone element easily.
Summary of the invention
The purpose of this invention is to provide a kind of oil groove tiny hole straight section measurement of length method of gemstone element, it can guarantee that measuring accuracy reaches the requirement of 0.001mm, can be used for batch detection, and also has simple, the easy to operate advantage of using method.
Technical scheme of the present invention is that the oil groove tiny hole straight section measurement of length method of gemstone element has following steps:
(1) will form chaining pin by integrally formed shank and syringe needle and be installed on the clock gauge, and form the clock gauge of special measurement gemstone element oil groove tiny hole straight section length, the syringe needle of described chaining pin comprises a circular arc top of a frustum and frustum miner diameter end;
(2) position of adjustment clock gauge chaining pin makes chaining pin contact with substrate surface, and the rotation clock gauge makes the long indicator of clock gauge aim at 0 scale mark, and clock gauge is returned to zero;
(3) gemstone element is placed on the substrate surface, the clock gauge chaining pin is put into the gemstone element oil groove, the axial line of chaining pin is overlapped with the axial line of gemstone element oil groove, chaining pin falls into the bottom of gemstone element oil groove, chaining pin rises, and the numerical value that clock gauge shows is the oil groove tiny hole straight section length of gemstone element.
The diameter of described clock gauge chaining pin frustum path is 0.6 ±
0 0.01Mm.
The circular arc on described clock gauge chaining pin top is 0.60-1.50mm.
The circular arc SR value on described clock gauge chaining pin top is 0.90 ±
0.05 0Mm.
Described clock gauge chaining pin top circular arc and conical surface arc transition.
It is stainless steel or sapphire that chaining pin and substrate all adopt material.
Adopt technique scheme, change common clock gauge chaining pin into clock gauge chaining pin described in the utility model, become the special-purpose clock gauge of measuring gemstone element oil groove tiny hole straight section length, be used for directly measuring gemstone element oil groove tiny hole straight section length, promptly utilized the advantage of clock gauge measuring accuracy for 0.001mm, guaranteed the precision of the straight section length of measurement gemstone element oil groove micropore, can not destroy gemstone element again, simultaneously with respect to adopting projector or digital display projector to greatly reduce cost.
Change common clock gauge chaining pin into chaining pin of the present invention, form the clock gauge of special measurement gemstone element oil groove tiny hole straight section length, add the lastblock sapphire substrate, with the common measuring method of clock gauge, can measure gemstone element oil groove tiny hole straight section length, therefore this method can be used for the measurement of production scene, and gemstone element is carried out batch detection, and easy to use, simple advantage is arranged.
Detection method of the present invention, and be applicable to the batch detector methods of the production scene of band oil groove micropore gemstone element straight hole segment length.
Description of drawings
Fig. 1 is a structure diagram of the present utility model;
Fig. 2 is a kind of embodiment of the present utility model.
Embodiment
Referring to Fig. 1.To form chaining pin by integrally formed shank and syringe needle and be installed on the clock gauge, form the clock gauge of special measurement gemstone element oil groove tiny hole straight section length.Clock gauge chaining pin 1 is made up of integrally formed shank 1a and syringe needle, and the total length L of clock gauge chaining pin is 20mm, and the diameter of phi 1 of shank is 1.5 ± 0.01mm.Syringe needle comprises a circular arc top of a frustum 1b and frustum miner diameter end, and the tapering of described frustum is 60, the diameter of phi 2 of frustum path is 0.6 ±
0 0.01Mm.
Referring to Fig. 1 and and Fig. 2.The arc radius SR1 of described needle tip, makes syringe needle can enter oil groove, and can not drop in the oil groove tiny hole less than the arc radius SR2 of oil groove greater than the diameter of gemstone element 2 oil groove tiny holes.The arc radius SR1 of needle tip determines that according to the arc radius SR2 of oil groove the span of the arc radius SR1 of needle tip is 0.60-1.50mm, and it is the length of 0.04-0.10mm straight section 3 that available its detects gemstone element oil groove tiny hole aperture.With clock gauge chaining pin circular arc SR1 value scope 0.90 ±
0.05 0Mm is an example, is used to measure the length that fine pore size is the gemstone element oil groove tiny hole straight section of 0.04-0.10mm.
Described clock gauge chaining pin material is stainless steel or sapphire, makes certain rigidity of having of chaining pin and wearing quality, to guarantee measuring accuracy and serviceable life.
Because gem products is hard brittle material, be easy to generate broken mouthful during detection, so the polishing of clock gauge chaining pin circular arc and with the transition of conical surface circle rib, can reduce when measuring damage to gem products.
With flatness good sapphire be measuring basis as substrate, described substrate material is a sapphire, utilizes the anti abrasive characteristic of sapphire, can reduce measuring error to greatest extent.Certainly substrate also can adopt stainless steel, as directly with the pedestal of clock gauge itself as substrate, when just being used for producing detection in batches, the pedestal of clock gauge itself weares and teares easily, can influence measuring accuracy, therefore, after using a period of time, need readjust measuring basis.
When detecting the oil groove tiny hole straight section length of gemstone element, earlier substrate is placed on the clock gauge pedestal, adjusts the clock gauge position, described clock gauge chaining pin is contacted gently with the sapphire substrate surface, rotation clock gauge watchcase makes the long indicator of clock gauge aim at 0 scale mark.
Referring to Fig. 2.Tested gemstone element is placed on the sapphire substrate surface, and described clock gauge chaining pin is put into the product oil groove, and the axial line of chaining pin is overlapped with the axial line of gemstone element oil groove, and the clock gauge chaining pin falls into the bottommost of product oil groove.This moment, the clock gauge chaining pin rose, and clock gauge shows a numerical value H
2, this numerical value is the distance that the clock gauge chaining pin rises, and also is the oil groove tiny hole straight section length of gemstone element.
Certainly, during with the oil groove tiny hole straight section length of above-mentioned detection gemstone element, though clock gauge shows the oil groove tiny hole straight section length value of gemstone element error is arranged, its error is at aperture≤0.10mm, straight hole segment length tolerance≤0.01mm is in the scope of measuring accuracy≤0.001mm.
Its reason is:
The clock gauge chaining pin is put into the product oil groove, the clock gauge chaining pin falls into the bottommost of product oil groove, the arc radius SR1 of chaining pin needle tip falls into the bottom of gemstone element oil groove at this moment, also fallen into simultaneously the upper end of gemstone element oil groove tiny hole straight section, the circular arc bottom of chaining pin needle tip has also produced a distance H with the top of gemstone element oil groove tiny hole straight section
1
Physical length H=H by gemstone element oil groove tiny hole straight section
1+ H
2Therefore, with the measured value H of institute of clock gauge system
2Less than normal than actual value H, setting numerical value less than normal is H
1:
The arc radius SR1 of chaining pin needle tip is as described in Table 1 to gemstone element oil groove tiny hole aperture d=0.05, d=0.06, d=0.07, d=0.08, d=0.09, d=0.10 influence of measurement error:
Table 1
| Aperture size (mm) | H 1MAX(mm) | Aperture size (mm) | H 1MAX(mm) |
| D0.05 | 0.00035 | D0.08 | 0.00089 |
| D0.06 | 0.0005 | D0.09 | 0.00113 |
| D0.07 | 0.00068 | D0.10 | 0.00139 |
Adopt this special use clock gauge chaining pin detected value and product straight hole segment length error to be 0.00139mm less than normal to the maximum as can be seen from the above table.Therefore, we carry out the described correction of table 2 to the data of detected value:
Table 2
| Aperture size (mm) | H 1MAX(mm) | Straight hole length H (mm) | Maximum error (mm) |
| D0.05 | 0.00035 | H 2 | -0.00035 |
| D0.06 | 0.0005 | H 2 | -0.0005 |
| D0.07 | 0.00068 | H 2 | -0.00068 |
| D0.08 | 0.00089 | H 2 | -0.00089 |
| D0.09 | 0.00113 | H 2+0.001 | -0.00013 |
| D0.10 | 0.00139 | H 2+0.001 | -0.00039 |
Therefore, can guarantee to detect band oil groove tiny hole gemstone element straight section length degree of accuracy, reach as aperture≤0.10mm with the inventive method, straight hole segment length tolerance≤0.01mm, measuring accuracy is the requirement of 0.001mm.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; any person of ordinary skill in the field; without departing from the spirit and scope of the invention; when can doing a little change and improvement, so the present invention's protection domain is as the criterion when looking the claim person of defining.
Claims (7)
1. the oil groove tiny hole straight section measurement of length method of a gemstone element is characterized in that following steps are arranged:
(1) will form chaining pin by integrally formed shank and syringe needle and be installed on the clock gauge, and form the clock gauge of special measurement gemstone element oil groove tiny hole straight section length, the syringe needle of described chaining pin comprises a circular arc top of a frustum and frustum miner diameter end;
(2) position of adjustment clock gauge chaining pin makes chaining pin contact with substrate surface, and the rotation clock gauge makes the long indicator of clock gauge aim at 0 scale mark, and clock gauge is returned to zero;
(3) gemstone element is placed on the substrate surface, the clock gauge chaining pin is put into the gemstone element oil groove, the axial line of chaining pin is overlapped with the axial line of gemstone element oil groove, chaining pin falls into the bottom of gemstone element oil groove, chaining pin rises, and the numerical value that clock gauge shows is the oil groove tiny hole straight section length of gemstone element.
2. method according to claim 1 is characterized in that: the diameter of described clock gauge chaining pin frustum path is 0.59～0.6mm.
3. method according to claim 2 is characterized in that: the circular arc on described clock gauge chaining pin top is 0.60-1.50mm.
4. method according to claim 3 is characterized in that: the circular arc SR value on described clock gauge chaining pin top is 0.90～0.95mm.
5. method according to claim 1 is characterized in that: described clock gauge chaining pin top circular arc and jewel conical surface arc transition.
6. method according to claim 1 is characterized in that: described clock gauge chaining pin material is stainless steel or sapphire.
7. method according to claim 1 is characterized in that: it is stainless steel or sapphire that described substrate adopts material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101037337A CN101876522B (en) | 2009-04-29 | 2009-04-29 | Method for measuring straight-section length of oil groove tiny hole of gem element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101037337A CN101876522B (en) | 2009-04-29 | 2009-04-29 | Method for measuring straight-section length of oil groove tiny hole of gem element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101876522A CN101876522A (en) | 2010-11-03 |
| CN101876522B true CN101876522B (en) | 2011-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101037337A Active CN101876522B (en) | 2009-04-29 | 2009-04-29 | Method for measuring straight-section length of oil groove tiny hole of gem element |
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| CN103245268B (en) * | 2013-05-10 | 2016-02-24 | 西安航空动力股份有限公司 | A kind of aeromotor nozzle vent length measuring method |
| CN104457510B (en) * | 2014-11-14 | 2017-03-15 | 深圳太辰光通信股份有限公司 | A kind of micro-hole detection device and Rotary Inspection System |
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