CN210862478U - Device for detecting thickness deviation of edge of lens - Google Patents
Device for detecting thickness deviation of edge of lens Download PDFInfo
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- CN210862478U CN210862478U CN201921900066.0U CN201921900066U CN210862478U CN 210862478 U CN210862478 U CN 210862478U CN 201921900066 U CN201921900066 U CN 201921900066U CN 210862478 U CN210862478 U CN 210862478U
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Abstract
The utility model provides an equipment for detecting lens edge thickness deviation, the utility model discloses an equipment includes horizontally measuring platform, first thousandth table and second amesdial, the last first measuring strip that sets up of measuring platform, the second measuring strip, the locator card, first spy pinhole and second spy pinhole, the hour hand rotation can be done to the upper surface that the one end rotation of first measuring strip was fixed in measuring platform and can follow measuring platform, the second is measured the upper surface that a rotation is fixed in measuring platform and can be followed measuring platform and be done hour hand rotation, hour hand rotation center is the same, locator card has the contained angle and can follow measuring platform horizontal motion. The utility model discloses an equipment utilizes first measurement strip and the fixed sample that awaits measuring of second measurement strip to reduce the limit that collapses among the sample testing process, and first measurement strip and second measurement strip can be the hour hand rotation, adjusts the contained angle between first measurement strip and the second measurement strip, can realize the measurement of the product of different specifications, can measure the sample of diameter 5-220 mm.
Description
Technical Field
The utility model relates to a check out test set field, concretely relates to an equipment for detecting lens edge thickness deviation.
Background
The edge thickness deviation (ETV) index of the infrared lens is a key factor influencing the polishing processing of the rear section and the assembly and imaging of the lens, and because the more and more bases detected by customers are changed, in order to realize the eccentric consistency of the assembled lens, a concave step or a plane is taken as a base, while the main method for detecting the ETV at present is to use an ejector pin to clamp a cylindrical surface and take a certain section of the concave surface as a base to measure, but the existing measuring method and equipment have the following problems: the concave-convex lens takes a certain end face of the concave surface as a reference, and a superposition error exists; different products need to be customized with different tools, so that the efficiency is low; when the thimble is used for clamping the column surface, the edge is easy to break, and the product is scrapped; plano-concave ETV with lens diameters less than 15mm and greater than 100mm are difficult to measure.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the weak point that prior art exists and provide an equipment for detecting lens edge thickness deviation.
In order to achieve the above purpose, the utility model adopts the following technical scheme: an apparatus for detecting thickness deviation of lens edge, the apparatus includes a horizontal measuring platform, a first dial indicator and a second dial indicator, the measuring platform is provided with a first measuring strip, a second measuring strip, a positioning card, a first probe hole and a second probe hole, the first measuring strip is a strip prism, the second measuring strip is the same as the first measuring strip in shape and size, one end of the first measuring strip is rotationally fixed on the upper surface of the measuring platform, the first measuring strip can rotate clockwise along the upper surface of the measuring platform, the second measuring strip is rotationally fixed on the upper surface of the measuring platform, the second measuring strip can rotate clockwise along the upper surface of the measuring platform, the clockwise rotation centers of the first measuring strip and the second measuring strip are the same, the first probe hole vertically penetrates through the upper surface and the lower surface of the measuring platform, the distance between the first probe hole and the rotation center of the hour hand is smaller than the length of the first measuring strip, the second probe hole vertically penetrates through the upper surface and the lower surface of the measuring platform, the positioning card is provided with an included angle, the positioning card is movably fixed on the upper surface of the measuring platform and can horizontally move along the upper surface of the measuring platform, the second probe hole is located on an angle bisection line of the positioning card, a probe of the first dial indicator is perpendicular to the upper surface of the measuring platform and penetrates through the first probe hole from bottom to top, a probe of the second dial indicator is perpendicular to the upper surface of the measuring platform and penetrates through the second probe hole from bottom to top, and the ratio of the length of the first measuring strip to the length of the angle edge of the positioning card is 5-8: 1.
The equipment for detecting the thickness deviation of the edge of the lens utilizes the first measuring strip and the second measuring strip to fix a sample to be detected, edge breakage in the sample detection process is reduced, the first measuring strip and the second measuring strip can rotate clockwise, an included angle between the first measuring strip and the second measuring strip is adjusted, measurement of products with different specifications can be achieved, and the equipment is efficient and convenient; a probe of the dial indicator is perpendicular to the upper surface of the measuring platform and penetrates through the first probe hole from bottom to top to be arranged upwards, so that the thickness deviation of the edge of the measuring lens is conveniently and efficiently measured, and the measurement result is more accurate due to the superposition error is avoided; the measuring platform is provided with the positioning card, the ratio of the length of the first measuring strip to the length of the corner edge of the positioning card is 5-8: 1, so that a small-size sample can be fixedly detected by the positioning card, a large-size sample can be fixedly detected by the measuring strip, and the use is convenient.
Preferably, the device further comprises a signal converter and a computer, the first dial indicator is electrically connected with the signal converter, the second dial indicator is electrically connected with the signal converter, and the signal converter is electrically connected with the computer.
The device for detecting the thickness deviation of the edge of the lens transfers the detection signal to a computer for processing through the signal converter, so that the labor cost is saved.
Preferably, the first measuring strip and the second measuring strip are rotationally fixed on the rotation center of a hour hand of the measuring platform through a stop bolt, the measuring platform is provided with a first arc-shaped groove and a second arc-shaped groove, the first arc-shaped groove penetrates through the upper surface and the lower surface of the measuring platform, the second arc-shaped groove penetrates through the upper surface and the lower surface of the measuring platform, the circle centers of the first arc-shaped groove and the second arc-shaped groove are the rotation centers of the hour hand, the distances from the rotation center of the hour hand to the first arc-shaped groove and the second arc-shaped groove are equal, the distance from the rotation center of the hour hand to the first arc-shaped groove is 70-95% of the length of the first measuring strip, the first measuring bar is rotationally fixed on the measuring platform by a bolt passing through the first arc-shaped groove, the second measuring strip is rotationally fixed on the measuring platform through a bolt penetrating through the second arc-shaped groove.
The equipment for detecting the thickness deviation of the edge of the lens rotationally fixes the other end of the first measuring strip and the other end of the second measuring strip through the arc-shaped groove and the bolt, so that the first measuring strip and the second measuring strip are kept parallel to the measuring platform.
Preferably, the measuring platform is provided with a third arc-shaped groove and a fourth arc-shaped groove, the third arc-shaped groove penetrates through the upper surface and the lower surface of the measuring platform, the fourth arc-shaped groove penetrates through the upper surface and the lower surface of the measuring platform, the circle centers of the third arc-shaped groove and the fourth arc-shaped groove are the hour hand rotation center, the hour hand rotation center is equal to the third arc-shaped groove and the fourth arc-shaped groove in distance, the hour hand rotation center is 40% -65% of the length of the first measuring strip, the first measuring strip is fixed to the measuring platform through the rotation of a bolt penetrating through the third arc-shaped groove, and the second measuring strip is fixed to the measuring platform through the rotation of a bolt penetrating through the fourth arc-shaped groove.
The arc-shaped groove and the bolt of the device for detecting the thickness deviation of the edge of the lens rotationally fix the middle parts of the first measuring strip and the second measuring strip, so that the first measuring strip and the second measuring strip are kept parallel to the measuring platform.
Preferably, the locator card is provided with two bar holes that run through the locator card, and two bar holes are parallel to each other, and two bar holes are with the angular bisector plane symmetry of locator card contained angle, the locator card is fixed by the bolt that passes two bar holes respectively the measuring platform upper surface.
The device for detecting the thickness deviation of the edge of the lens can adjust the relative position of the positioning card and the second probe hole, and can fixedly detect samples with different small sizes by using the positioning card.
Preferably, the measuring platform has 3-8 legs, the legs are equal in length, and the legs are provided with length adjusting feet.
The length adjusting foot of the device for detecting the thickness deviation of the edge of the lens can adjust the level of the measuring platform.
Preferably, the equipment further comprises a heightening cushion block, the heightening cushion block comprises a base and a locking adjusting part, and the base and the locking adjusting part of the heightening cushion block are fixed on the lower bottom surface of the measuring platform.
The above-described apparatus for detecting a thickness deviation of an edge of a lens can adjust the height of the measuring platform.
Preferably, the length of the first measuring strip is 160 mm-180 mm, and the length of the positioning clamping corner edge is 5.5-6.5: 1 of the ratio of the length of the first measuring strip to the length of the positioning clamping corner edge.
Preferably, the distance between the first probe hole and the rotation center of the hour hand is 20% -25% of the length of the first measuring strip.
When the distance between the first probe hole of the device for detecting the thickness deviation of the edge of the lens and the rotation center of the hour hand is 20% -25% of the length of the first measuring strip, the device can adapt to a larger diameter range of the lens by adjusting the angle between the first measuring strip and the second measuring strip.
Preferably, the length of the first measuring strip is 170mm, and the length of the positioning clip corner edge is 6:1 of the ratio of the length of the first measuring strip to the length of the positioning clip corner edge.
The above-described apparatus for detecting a thickness deviation of an edge of a lens can detect a thickness deviation of an edge of a sample having a diameter ranging from 5 to 220 mm.
Preferably, the material for manufacturing the measuring platform is SUS304 stainless steel, and the material for manufacturing the first measuring strip and the second measuring strip is Polyoxymethylene (POM).
The beneficial effects of the utility model reside in that: the utility model provides a device for detecting the thickness deviation of the edge of a lens, the utility model discloses a device for detecting the thickness deviation of the edge of a lens utilizes a first measuring strip and a second measuring strip to fix a sample to be detected, thereby reducing the edge breakage in the sample detection process, the first measuring strip and the second measuring strip can rotate as the hour hand, the included angle between the first measuring strip and the second measuring strip is adjusted, the measurement of products with different specifications can be realized, and the device is efficient and convenient; a probe of the dial indicator is perpendicular to the upper surface of the measuring platform and penetrates through the first probe hole from bottom to top to be arranged upwards, so that the thickness deviation of the edge of the lens is measured conveniently and efficiently, and the superposition error is avoided, so that the measuring result is more accurate; the measuring platform is provided with the positioning card, the ratio of the length of the first measuring strip to the length of the corner edge of the positioning card is 5-8: 1, so that a small-size sample can be fixedly detected by the positioning card, a large-size sample can be fixedly detected by the measuring strip, the use is convenient, and the diameter range of the measuring sample is 5-220 mm.
Drawings
Fig. 1 is a schematic perspective view of an apparatus for detecting a thickness deviation of a lens edge according to an embodiment of the present invention.
Fig. 2 is a front view of an apparatus for detecting a thickness deviation of a lens edge according to an embodiment of the present invention.
Fig. 3 is a top view of an apparatus for detecting a thickness deviation of an edge of a lens according to an embodiment of the present invention.
The device comprises a measuring platform, a first dial indicator, a second dial indicator, a first measuring strip, a second measuring strip, a positioning card, a second positioning card, a third positioning card, a fourth positioning card, a supporting leg, a supporting block, a length adjusting foot, a signal converter, a first probe hole, a second probe hole, a cushion block, a first dial indicator, a second dial indicator, a third dial indicator, a first measuring strip, a second dial indicator, a third dial indicator, a fourth dial indicator, a fifth dial indicator.
Detailed Description
For better illustrating the objects, technical solutions and advantages of the present invention, the present invention will be further described with reference to the following embodiments.
Example 1
As an embodiment of the utility model provides an equipment for detecting lens edge thickness deviation, as shown in FIG. 1, FIG. 2 and FIG. 3, the equipment includes horizontally measuring platform 1, first thousandth table 2, second thousandth table 3 and heightening cushion 21, measuring platform 1 is last to set up first measuring strip 4, second measuring strip 5, locator card 6, first probe hole 19, second probe hole 20, signal converter 18 and computer, measuring platform 1's preparation material is SUS304 stainless steel, first measuring strip 4 and second measuring strip 5's preparation material is polyformaldehyde, first measuring strip 4 is rectangular prism, the length of first measuring strip 4 is 170mm, the shape and the size of second measuring strip 5 are the same with first measuring strip 4, the one end of first measuring strip 4 is fixed in the upper surface of measuring platform 1 through the stopper bolt 8 rotation, first measuring strip 4 can be made the hour-hour rotation along the upper surface of measuring platform 1, one end of a second measuring strip 5 is rotationally fixed on the upper surface of the measuring platform 1 through a stop bolt 8, the second measuring strip 5 can rotate clockwise along the upper surface of the measuring platform 1, the clockwise rotation centers 9 of the first measuring strip 4 and the second measuring strip 5 are the same, a first arc-shaped groove 12, a second arc-shaped groove 13, a third arc-shaped groove 14 and a fourth arc-shaped groove 15 are arranged on the measuring platform 1, the first arc-shaped groove 12 penetrates through the upper surface and the lower surface of the measuring platform 1, the second arc-shaped groove 13 penetrates through the upper surface and the lower surface of the measuring platform 1, the third arc-shaped groove 14 penetrates through the upper surface and the lower surface of the measuring platform 1, the fourth arc-shaped groove 15 penetrates through the upper surface and the lower surface of the measuring platform 1, the circle centers of the first arc-shaped groove 12 and the second arc-shaped groove 13 are the clockwise rotation center 9, and the distances from the clockwise rotation center 9 to the first arc-shaped groove and the second, the distance between the hour hand rotation center 9 and the first arc-shaped groove 12 is 90% of the length of the first measuring strip 4, the first measuring strip 4 is rotationally fixed on the measuring platform 1 through a bolt penetrating through the first arc-shaped groove 12, the second measuring strip 5 is rotationally fixed on the measuring platform 1 through a bolt penetrating through the second arc-shaped groove 13, the circle centers of the third arc-shaped groove 14 and the fourth arc-shaped groove 15 are the hour hand rotation center 9, the distances between the hour hand rotation center 9 and the third arc-shaped groove 14 and the fourth arc-shaped groove 15 are equal, the distance between the hour hand rotation center and the third arc-shaped groove is 60% of the length of the first measuring strip, the first measuring strip 4 is rotationally fixed on the measuring platform 1 through a bolt penetrating through the third arc-shaped groove 14, and the second measuring strip 5 is rotationally fixed on the measuring platform 1 through a bolt penetrating through the fourth arc;
the first probe hole 19 vertically penetrates through the upper surface and the lower surface of the measuring platform 1, the distance between the first probe hole 19 and the hour hand rotation center 9 is 38 mm-42 mm, the second probe hole 20 vertically penetrates through the upper surface and the lower surface of the measuring platform 1, the positioning card 6 has an included angle, the positioning card 6 is provided with two strip-shaped holes 11 penetrating through the positioning card, the two strip-shaped holes 11 are parallel to each other, the two strip-shaped holes 11 are in planar symmetry with an angular bisector of the included angle of the positioning card, the positioning card 6 is movably fixed on the upper surface of the measuring platform by bolts respectively penetrating through the two strip-shaped holes so that the positioning card 6 can horizontally move along the upper surface of the measuring platform 1, the second probe hole 20 is positioned on the angular bisector of the included angle of the positioning card, the farthest distance between the vertex 7 of the included angle of the positioning card 6 and the second probe hole 20 is 12mm, the closest distance between the vertex 7 of the included angle, 1/6 for locating the length of the corner edge 10 of the clip as the length of the first measuring strip;
a probe of the first dial indicator 3 is perpendicular to the upper surface of the measuring platform 1 and penetrates through the first probe hole 19 from bottom to top, a probe of the second dial indicator 4 is perpendicular to the upper surface of the measuring platform 1 and penetrates through the second probe hole 20 from bottom to top, the first dial indicator 2 is electrically connected with the signal converter 18, the second dial indicator 3 is electrically connected with the signal converter 18, and the signal converter 18 is electrically connected with the computer;
the measuring platform 1 is provided with 4 supporting legs 16, the lengths of the supporting legs 16 are equal, the supporting legs 16 are provided with length adjusting feet 17, the heightening cushion block 21 comprises a base and a locking adjusting part, and the base and the locking adjusting part of the heightening cushion block 21 are fixed on the lower bottom surface of the measuring platform 1.
The use method of the apparatus for detecting the thickness deviation of the lens edge of the present embodiment is as follows:
for lenses with a diameter greater than 15 mm: (1) adjust length adjustment foot 17 and adjust the measuring platform level, the concave surface of the lens that will await measuring is vertical to be placed between first measuring strip 4 and the second measuring strip 5 on measuring platform 1 downwards, according to the size of the big or small angle of regulation of diameter, readjusts the probe of first kilo minute table 2 and contacts the sample edge that awaits measuring, and the distance in the contact point apart from the lens is 85% of lens clear aperture, and rotatory first measuring strip 4 and second measuring strip 5 will await measuring the lens chucking.
(2) And (3) zeroing the first dial indicator, rotating the lens to be detected for a circle by taking the center of the lens to be detected as a rotation center, enabling the detection signal of the first dial indicator to enter a computer through a signal converter, and analyzing the result by the computer.
For lenses with a diameter of less than 15 mm: (1) adjusting the length adjusting foot 17 to adjust the measuring platform to be horizontal, vertically placing the concave surface of the lens to be measured between the included angles of the positioning cards 6 downwards, moving the positioning cards 6, adjusting the probe head of the second dial indicator 3 to contact the edge of the sample to be measured, adjusting the distance between the contact point and the lens to be 85% of the clearance aperture of the lens, and tightly clamping the positioning cards 6 by adjusting bolts;
(2) and (3) zeroing the first dial indicator, rotating the lens to be detected for a circle by taking the center of the lens to be detected as a rotation center, enabling the detection signal of the first dial indicator to enter a computer through a signal converter, and analyzing the result by the computer.
The device for detecting the edge thickness deviation of the lens can be used for detecting the edge thickness deviation (ETV) of a lens sample with the diameter of 5-220mm, and the measurement range is wide.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the protection scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. The equipment for detecting the thickness deviation of the edge of the lens is characterized by comprising a horizontal measuring platform, a first dial indicator and a second dial indicator, wherein a first measuring strip, a second measuring strip, a positioning clamp, a first probe hole and a second probe hole are arranged on the measuring platform, the first measuring strip is a long strip prism, the shape and the size of the second measuring strip are the same as those of the first measuring strip, one end of the first measuring strip is rotationally fixed on the upper surface of the measuring platform, the first measuring strip can rotate clockwise along the upper surface of the measuring platform, the second measuring strip is rotationally fixed on the upper surface of the measuring platform, the second measuring strip can rotate clockwise along the upper surface of the measuring platform, the clockwise rotation centers of the first measuring strip and the second measuring strip are the same, and the first probe hole vertically penetrates through the upper surface and the lower surface of the measuring platform, the distance between the first probe hole and the rotation center of the hour hand is smaller than the length of the first measuring strip, the second probe hole vertically penetrates through the upper surface and the lower surface of the measuring platform, the positioning card is provided with an included angle, the positioning card is movably fixed on the upper surface of the measuring platform and can horizontally move along the upper surface of the measuring platform, the second probe hole is located on an angle bisection line of the positioning card, a probe of the first dial indicator is perpendicular to the upper surface of the measuring platform and penetrates through the first probe hole from bottom to top, a probe of the second dial indicator is perpendicular to the upper surface of the measuring platform and penetrates through the second probe hole from bottom to top, and the ratio of the length of the first measuring strip to the length of the angle edge of the positioning card is 5-8: 1.
2. The apparatus of claim 1, further comprising a signal converter and a computer, wherein the first dial gauge is electrically connected to the signal converter, wherein the second dial gauge is electrically connected to the signal converter, and wherein the signal converter is electrically connected to the computer.
3. The apparatus of claim 1, wherein the first measuring bar and the second measuring bar are rotationally fixed to a center of rotation of a hour hand of the measuring platform by a tuck bolt, the measuring platform is provided with a first arc-shaped groove and a second arc-shaped groove, the first arc-shaped groove penetrates through the upper surface and the lower surface of the measuring platform, the second arc-shaped groove penetrates through the upper surface and the lower surface of the measuring platform, the circle centers of the first arc-shaped groove and the second arc-shaped groove are the rotation centers of the hour hand, the distances from the rotation center of the hour hand to the first arc-shaped groove and the second arc-shaped groove are equal, the distance from the rotation center of the hour hand to the first arc-shaped groove is 70-95% of the length of the first measuring strip, the first measuring bar is rotationally fixed on the measuring platform by a bolt passing through the first arc-shaped groove, the second measuring strip is rotationally fixed on the measuring platform through a bolt penetrating through the second arc-shaped groove.
4. The apparatus according to claim 3, wherein the measuring platform is provided with a third arc-shaped groove and a fourth arc-shaped groove, the third arc-shaped groove penetrates through the upper surface and the lower surface of the measuring platform, the fourth arc-shaped groove penetrates through the upper surface and the lower surface of the measuring platform, the circle centers of the third arc-shaped groove and the fourth arc-shaped groove are the rotation centers of the hour hands, the distances from the rotation centers of the hour hands to the third arc-shaped groove and the fourth arc-shaped groove are equal, the distance from the rotation center of the hour hands to the third arc-shaped groove is 40% -65% of the length of the first measuring strip, the first measuring strip is rotationally fixed on the measuring platform by a bolt penetrating through the third arc-shaped groove, and the second measuring strip is rotationally fixed on the measuring platform by a bolt penetrating through the fourth arc-shaped groove.
5. The device according to claim 1, characterized in that the locator card is provided with two strip-shaped holes penetrating through the locator card, the two strip-shaped holes are parallel to each other, the two strip-shaped holes are plane-symmetrical with respect to a bisector of an included angle of the locator card, and the locator card is fixed on the upper surface of the measuring platform by bolts respectively penetrating through the two strip-shaped holes.
6. The apparatus of claim 1, wherein the measuring platform has 3-8 legs, the legs being equal in length, the legs being provided with length adjustment feet.
7. The apparatus of claim 1, further comprising a heightening pad, wherein the heightening pad comprises a base and a locking adjustment portion, and the base and the locking adjustment portion of the heightening pad are fixed to a lower bottom surface of the measuring platform.
8. The apparatus of claim 1, wherein the length of the first measuring strip is 160mm to 180mm, the ratio of the length of the first measuring strip to the length of the corner edge of the positioning clip is 5.5 to 6.5:1, and the distance between the first probe hole and the rotation center of the hour hand is 20% to 25% of the length of the first measuring strip.
9. The apparatus of claim 1, wherein the first measuring strip has a length of 170mm and the ratio of the length of the first measuring strip to the length of the locator clip corner edge is 6: 1.
10. The apparatus of claim 1, wherein the measuring platform is made of SUS304 stainless steel, and the first and second measuring bars are made of polyoxymethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921900066.0U CN210862478U (en) | 2019-11-05 | 2019-11-05 | Device for detecting thickness deviation of edge of lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921900066.0U CN210862478U (en) | 2019-11-05 | 2019-11-05 | Device for detecting thickness deviation of edge of lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210862478U true CN210862478U (en) | 2020-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921900066.0U Active CN210862478U (en) | 2019-11-05 | 2019-11-05 | Device for detecting thickness deviation of edge of lens |
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| Country | Link |
|---|---|
| CN (1) | CN210862478U (en) |
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- 2019-11-05 CN CN201921900066.0U patent/CN210862478U/en active Active
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