CN205352319U - Step capillary hole aperture profile detection device and frock - Google Patents
Step capillary hole aperture profile detection device and frock Download PDFInfo
- Publication number
- CN205352319U CN205352319U CN201520962325.8U CN201520962325U CN205352319U CN 205352319 U CN205352319 U CN 205352319U CN 201520962325 U CN201520962325 U CN 201520962325U CN 205352319 U CN205352319 U CN 205352319U
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- frock
- capillary hole
- hole aperture
- pore
- glass plate
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Abstract
The utility model belongs to the technical field of the capillary hole is detected, a detection device and frock that image method test position cascade capillary hole aperture profile is related to. Step capillary hole aperture contour detection frock, its the bottom side of being body structure, the top is the pyramid structure who met and constitute in four symmetrical inclined planes, and the pyramid structure top is the step plane. Step capillary hole aperture profile detection device except that detecting the frock, still includes image measuring instrument, glass plate, and wherein, the setting of detection frock is on glass plate, and top step plane orientation waits to detect step capillary hole one end, and image measuring instrument is located and waits to detect the step capillary hole other end. The unable measurement problem of certain type laser gyro cavity capillary hole aperture profile is effectively solved to this frock and device, can promote to the machining part of same structure.
Description
Technical field
This utility model belongs to pore detection technique field, relates to detecting device and the frock of a kind of image method test desk stepwise pore aperture outline.
Background technology
Radiographic measurement is based on optical projection principle, completes that sample edge profile carries out aiming and measures to realize two dimensional surface coordinate position.It is capable of aperture outline quickly to measure.When measuring pore aperture outline, pore 5 one end to be measured is directed at image measurer camera lens 1, directional light 3 is provided below by glass plate 4 from measured workpiece 2, light through pore forms " light field ", other light are blocked forming " details in a play not acted out on stage, but told through dialogues ", and then the clear aperture outline forming pore.But, when pore is with stepped hole 6, some light will be stopped by " waist " stepped hole, it is impossible to forms the clear profile in aperture to be measured, causes that aperture outline cannot accurately be measured.
Utility model content
The purpose of this utility model:
There is provided a kind of and be capable of detecting device and the frock that step pore aperture outline is accurately measured.
The technical solution of the utility model:
Step pore aperture outline detection frock, it is characterised in that bottom is cube structure, top be four symmetrical inclined-planes meet composition pyramid structure, wherein, the intersection range between four symmetrical inclined-planes and bottom datum level is 5 °～15 °.
The angle of cut between four symmetrical inclined-planes and bottom datum level is 7 ° 33 ".
The pyramid structure top of four symmetrical inclined-plane compositions is step plane.
A kind of step pore aperture outline detecting device of described detection frock, also include image measurer, glass plate, wherein, described detection frock is arranged on glass plate, top stage plane is towards step pore one end to be detected, and image measurer is positioned at the step pore other end to be detected.
Frock is glass material, overall in " pyramid " type, and four inclined-planes have certain angle (angle is obtained) by step pore aperture and length computation with datum plane, and all is burnishing surface.Reflecting light by the directional light of datum plane on inclined-plane, the diaphragm that light is formed through stepped hole arrives pore shadow region, makes aperture outline high-visible, and then reaches the purpose of accurately measurement.
The beneficial effects of the utility model: this utility model detecting device can allow the diaphragm formed through stepped hole arrive pore shadow region, makes aperture outline high-visible, thus the accurate measurement to pore aperture outline can be carried out.This tool structure is simple, easy to operate, and certainty of measurement is high, may extend to the machined part of same structure, has bigger actual application value.
Accompanying drawing explanation
Fig. 1 image method measures pore principle；
Fig. 2 is prior art pore image；
Fig. 3 is the top view of this utility model detection frock；
Fig. 4 is the front view of this utility model detection frock；
Fig. 5 is this utility model detecting device engineer applied schematic diagram；
Fig. 6 is this utility model pore image；
Angle schematic diagram when Fig. 7 is to measure,
Parts numeral in figure represents,
1-image measurer camera lens, 2-measured workpiece, 3-directional light, 4-glass plate, 5-pore, 6-stepped hole, 7-detect frock.
Detailed description of the invention
Below in conjunction with drawings and Examples, this utility model is described further:
Refer to Fig. 3 and Fig. 4, this utility model step pore aperture outline detection frock material is glass material, it it is plane bottom it, top is the Pyramid structure on four symmetrical inclined-planes, intersection range between four symmetrical inclined-planes and bottom datum level is θ 1～θ 2, preferable range is 5 °～15 ° (concrete angle obtains maximum, minima by stepped hole, pore aperture and length computation), it is preferable that embodiment Fixture Design is 7 ° 33 ".It addition, the detection symmetrical incline apex confluce of frock four is step plane, in order to processing reduces the infringement of frock simultaneously.
Referring to Fig. 5 and Fig. 6, it is structural representation and the pore image of this utility model step pore aperture outline detecting device respectively.Described detecting device includes detection frock, image measurer, glass plate.Wherein, described detection frock is arranged on glass plate, and inclined-plane is towards step pore one end to be detected, and image measurer is positioned at the pore other end, is used for receiving imaging.
During work of the present utility model: through the directional light of glass plate vertically into frock, angle of incidence is 0, radiation direction remains unchanged, when light arrives frock inclined-plane, owing to angle of incidence exists, light enters optically thinner medium from optically denser medium, makes refraction light by step diaphragm, completely arrive at pore aperture, make clear-cut visible.
As it is shown in fig. 7, the angle of frock inclined-plane and lower surface, to draw according to pore, the length of stepped hole and aperture Theoretical Calculation.
θ 1 (minimum angle-of-incidence):
θ 1=antanmax{ (c-b)/2N, (a-b)/2 (L+M) }；
θ 2 (inclination maximum):
θ 2=antan [(a+c)/2 (L+M+N)].
During measurement, pore workpiece with stepped hole is adjusted with radiographic measurement camera lens, pore aperture outline obscures, then frock is placed on glass plate, visual frock central plane is to alignment pore, slow Mobile tool also passes through the profile imaging of image instrument observation aperture, until profile imaging clearly, so that it may measure accordingly.
Claims (4)
1. step pore aperture outline detection frock, it is characterised in that bottom is cube structure, top be four symmetrical inclined-planes meet composition pyramid structure, wherein, the intersection range between four symmetrical inclined-planes and bottom datum level is 5 °～15 °.
2. step pore aperture outline according to claim 1 detection frock, it is characterised in that the angle of cut between four symmetrical inclined-planes and bottom datum level is 7 ° 33 ".
3. step pore aperture outline according to claim 1 detection frock, it is characterised in that the pyramid structure top of four symmetrical inclined-plane compositions is step plane.
4. the step pore aperture outline detecting device including detecting frock as claimed in claim 3, it is characterized in that, also include image measurer, glass plate, wherein, described detection frock is arranged on glass plate, and top stage plane is towards step pore one end to be detected, and image measurer is positioned at the step pore other end to be detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520962325.8U CN205352319U (en) | 2015-11-26 | 2015-11-26 | Step capillary hole aperture profile detection device and frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520962325.8U CN205352319U (en) | 2015-11-26 | 2015-11-26 | Step capillary hole aperture profile detection device and frock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205352319U true CN205352319U (en) | 2016-06-29 |
Family
ID=56167697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520962325.8U Active CN205352319U (en) | 2015-11-26 | 2015-11-26 | Step capillary hole aperture profile detection device and frock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205352319U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116908217A (en) * | 2023-09-11 | 2023-10-20 | 中北大学 | Deep hole measurement and three-dimensional reconstruction system and application method thereof |
-
2015
- 2015-11-26 CN CN201520962325.8U patent/CN205352319U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116908217A (en) * | 2023-09-11 | 2023-10-20 | 中北大学 | Deep hole measurement and three-dimensional reconstruction system and application method thereof |
| CN116908217B (en) * | 2023-09-11 | 2023-11-17 | 中北大学 | Deep hole measurement and three-dimensional reconstruction system and application method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |