CN113865517A - Glass tube end face angle tester and measuring method thereof - Google Patents
Glass tube end face angle tester and measuring method thereof Download PDFInfo
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- CN113865517A CN113865517A CN202111154361.8A CN202111154361A CN113865517A CN 113865517 A CN113865517 A CN 113865517A CN 202111154361 A CN202111154361 A CN 202111154361A CN 113865517 A CN113865517 A CN 113865517A
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- glass tube
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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
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
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Abstract
The invention discloses a glass tube end face angle tester, which comprises a glass tube fixing part and a light source, wherein a receiving screen is arranged between the light source and the glass tube fixing part; a reflecting device is fixed on the fixing part of the glass tube, the reflecting device needs to be arranged by being attached to the end face of the glass tube or arranged parallel to the end face of the glass tube, and the adjustment of the reflecting device can be synchronously realized when the glass tube is adjusted; the light source irradiates the reflecting device, the reflecting device reflects light to the receiving screen, and the size of the light spot position collected by the light spot collecting device is combined with the size of the light source and the size of the reflecting point to realize the calculation of the end face angle of the glass tube. The invention also discloses an angle calculation method, which can realize the analysis and calculation of the glass tube deflection angle under the preset condition and the accurate data of the glass tube deflection.
Description
Technical Field
The invention belongs to the technical field of optical fiber fittings, and particularly relates to a glass tube end face angle tester and a measuring method thereof.
Background
It is well known that as the applications of optical fiber communication and optical fiber sensing in the fields of telecommunications, aerospace, navigation and industrial manufacturing become more and more common, the demand of optical fiber devices is increasing. Especially, the development and popularization of the communication 5G technology have higher and higher requirements on optical fiber devices. The product with high performance parameters and high reliability can not be separated from precise parts, and one of the important parts is a high-precision glass tube. On one hand, the glass tube is required to be made of high borosilicate with good temperature characteristic, on the other hand, the glass tube is required to be precise in overall dimension, and particularly, the end face of the glass tube needs to be perpendicular to the cylindrical surface. The verticality requires 90 +/-0.1 degrees. Because the diameter of the glass tube is very small, the diameter is about 1.0 mm-4.5 mm, so how to measure the verticality of the glass tube becomes a technical problem to be solved urgently in the field at present.
In view of the current situation that there are no better measuring methods and measuring equipment for glass tubes, how to design a glass tube end face angle tester by technical improvement is an important issue for research and development departments in the field to realize effective precision measurement of glass tubes.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a glass tube end face angle tester and a measuring method thereof, which realize the accurate measurement of the end face of a glass tube by realizing the fixed-point irradiation of a light source and by means of the light source, a receiving device and a fixing device.
In order to achieve the technical purpose, the invention adopts the following scheme: a glass tube end face angle tester comprises a glass tube fixing part and a light source, wherein a receiving screen is arranged between the light source and the glass tube fixing part; the glass tube fixing part is fixedly provided with a reflecting device, the reflecting device needs to be arranged by being attached to the end face of the glass tube or arranged parallel to the end face of the glass tube, and the reflecting device can be synchronously adjusted when the glass tube is adjusted; the light source irradiates the reflecting device, the reflecting device reflects light to the receiving screen, and the size of the light spot position collected by the light spot collecting device is combined with the size of the light source and the size of the reflecting point to realize the calculation of the end face angle of the glass tube.
The glass tube fixing part is fixed on a test board, and an adjusting part is arranged on the test board to adjust the horizontal state of the test board.
The device comprises a test board, and is characterized in that a vertical rod is arranged on the upper portion of the test board, two fixing clamps are arranged on the vertical rod, one fixing clamp is used for fixing a light source and a receiving screen, and the other fixing clamp is used for fixing a light spot collecting device.
The reflecting device is a reflecting mirror, a balancing weight is arranged on the reflecting mirror, and the balancing weight is used for balancing when the end surface of the glass tube is fixed, so that the reflecting mirror is restrained from being attached.
Light spot collection system pass through the holder and be connected with the fixation clamp, the holder include a fixed clamping part and a activity clamping part, fixed clamping part and activity clamping part, all be provided with the screw thread fixed block on fixed clamping part and the activity clamping part, a screw rod runs through fixed clamping part and activity clamping part and revolves soon through screw rod application of force handle and twist the regulation, through adjusting the clamp plate that realizes fixed clamping part and activity clamping part tip and open and shut to this realization is to light spot collection system's centre gripping and is relaxed.
The glass tube fixing part, the light source and the receiving screen are arranged in parallel; the device comprises a receiving screen, a light spot acquisition device, a CCD camera and a computer, wherein the light spot acquisition device is arranged corresponding to the receiving screen and is used for capturing a reflected light signal in the receiving screen through the CCD camera and realizing data calculation and analysis after the reflected light signal is connected with external equipment.
The glass tube fixing part comprises a bottom plate, a bottom adjusting hole is formed in the bottom plate and used for achieving position adjustment, an adjusting seat is arranged on the upper portion of the bottom plate, a middle adjusting hole is formed in the adjusting seat, a vertical plate is further arranged on the adjusting seat, a vertical adjusting hole is formed in the vertical plate, a base is fixed on the vertical plate, a glass tube clamp is fixed on the base, and the glass tube clamp can swing and be adjusted on the base.
The vertical adjusting hole comprises a hinge hole and a radian adjusting hole, and the base is fixed on the vertical plate through the matching of the two holes, so that the swinging adjustment is realized.
The glass tube clamp comprises a clamp seat, wherein a movable guide part is arranged on the clamp seat, and the movable guide part is matched with a fixed guide part on the base to realize transverse movement guide restriction; the clamping seat is provided with a hinged shaft connected with the clamping part, an elastic component is arranged between the tail end of the clamping part and the clamping seat, and the head end of the clamping seat is matched with the head end of the clamping part to clamp the glass tube.
The method for measuring the end face deflection angle of the glass tube by using the glass tube end face angle tester as described above is described as follows:
the following parameters are preset:
A. a light source point; b. Reflecting points of the reflectors; c. Receiving the light spot received by the screen; d. DB ^ mirror surface, and angle ABD = ^ DBC;
E. after the reflector rotates by an angle a, receiving light spots received by the screen; f is a point on AE, FB T mirror surface; angle ABF =angleFBE; making a vertical line of EB from A, and taking the vertical foot as G;
step 1: presetting a point position A; presetting a C point position, a B point position, AC = Xmm, AB = Ymm; A. b, C the connection line of the three points is an isosceles triangle;
step 2: the light emitted from the point A can be made to strike the point C of the receiving screen by adjusting the angle of the reflector, the reflector is in a horizontal state at the moment, and the angle ABD = arcsin (X/2/Y) = b;
and step 3: when the reflector rotates by an angle a (a <0.3 degrees), then ≈ ABF = ≈ FBE = a + b, a = (arcsin (AG/AB))/2-b, and then ≈ EAB = <90 degrees;
since < EAG < ABE <0.3 ° + b = d, AG ≈ AE,
further calculations, a ≈ (arcsin (AE/1200))/2-0.477 °;
at this time, a is the rotation angle of the reflector, namely the surface deflection angle of the glass tube.
In step 3, when the mirror rotation angle a is adjusted, the point E is to fall on the extension line of the AC.
The invention has the beneficial effects that: the invention discloses a glass tube end face angle tester through the arrangement and the structural arrangement, which comprises a glass tube fixing part and a light source, wherein a receiving screen is arranged between the light source and the glass tube fixing part; a reflecting device is fixed on the fixing part of the glass tube, the reflecting device needs to be arranged by being attached to the end face of the glass tube or arranged parallel to the end face of the glass tube, and the adjustment of the reflecting device can be synchronously realized when the glass tube is adjusted; the light source irradiates the light reflecting device, the light reflecting device reflects light to the receiving screen, and the calculation of the end face angle of the glass tube is realized by combining the position size of the light spot acquired by the light spot acquisition device with the size of the light source and the size of the light reflecting point; the invention also discloses an angle calculation method, which can realize the analysis and calculation of the glass tube deflection angle under the preset condition and the accurate data of the glass tube deflection.
The device and the angle measuring method fill the domestic blank in the optical fiber field, and the accuracy of the test data reaches the highest level of similar products at home and abroad through long-time practical verification.
Drawings
FIG. 1 is a schematic perspective view of the apparatus;
FIG. 2 is a schematic perspective view II of the apparatus;
FIG. 3 is a schematic view of a fixing structure of the light spot collecting device;
FIG. 4 is a perspective view of a fixing portion of the glass tube;
FIG. 5 is an enlarged view of the structure of area A in FIG. 2;
FIG. 6 is a perspective view of the reflector;
FIG. 7 is a schematic view of a three-dimensional structure of a reflector and a counterweight;
FIG. 8 is a schematic view of the principle of correction of the measuring method of the glass tube end face angle tester;
FIG. 9 is a schematic diagram of the present glass tube end face angle tester for testing actual products;
in the drawing, 1, a workbench, 10, a glass tube, 11, a reflector, 12, a balancing weight, 2, a computer, 3, a CCD camera, 4, a glass tube fixing part, 41, a glass tube clamp, 410, a clamping seat, 411, a guide bulge, 412, a clamping part, 413, a spring, 414, a connecting screw rod, 415, a V-shaped groove, 416, a hinge shaft, 42, a test platform, 43, an adjusting screw rod, 44, a bottom plate, 441, a bottom adjusting hole, 45, an adjusting seat, 451, a middle adjusting hole, 452, a vertical plate, 453, an arc adjusting hole, 454, a hinge hole, 46, a base, 461, a guide groove, 5, a support rod, 51, a lower fixing clamp, 52, an upper fixing clamp, 6, a receiving screen, 7, a laser, 8, a clamp, 81, a movable clamping part, 82, a fixed clamping part, 83, a fixed side pressure plate, 84, a fixed support seat, 85, a first thread, 86, a side pressure plate, 87. a movable supporting seat 88, a screw force applying handle 89 and a second thread fixing block.
Detailed Description
Referring to the attached drawings, the instrument for testing the end face angle of the glass tube is arranged at the upper part of a workbench 1, and a computer 2 for data calculation and analysis is arranged on the workbench; the workbench is provided with a test bench 42, the test bench 42 is of a flat plate structure, four corners of the test bench are provided with adjusting screws 43, and the horizontal state of the test bench can be adjusted through the adjusting screws 43;
the upper part of the test table 42 is provided with a support rod 5, the support rod 5 is provided with a lower fixing clamp 51 and an upper fixing clamp 52, and the receiving screen 6 and the CCD camera 3 are respectively fixed through the two fixing clamps.
The glass tube fixing part 4 is fixed on the test bench 42 and comprises a bottom plate 44, a bottom adjusting hole 441 is formed in the bottom plate 44 and used for achieving position adjustment, an adjusting seat 45 is arranged on the upper portion of the bottom plate 44, a middle adjusting hole 451 is formed in the adjusting seat 45, a vertical plate 452 is further arranged on the adjusting seat 45, a hinge hole 454 and an arc adjusting hole 453 are formed in the vertical plate 452, the base 46 is fixed on the vertical plate 452 through the matching of the two holes, a glass tube clamp 41 is fixed on the base 46 through a connecting screw rod 414, and the glass tube clamp 41 can swing and adjust on the base through the hinge hole 454 and the arc adjusting hole 453.
The bottom adjusting hole 441 and the middle adjusting hole 451 are both long holes and are arranged at 90 degrees, and the glass tube clamp 41 can be adjusted on the test bench 42 in a front-back and left-right direction by matching the two holes.
The glass tube clamp 41 is arranged for realizing vertical clamping of a glass tube, and the technical scheme discloses the glass tube clamp 41 which can flexibly realize the clamping of the glass tube and is easy to operate. As shown in fig. 4, it includes a holder 410, the holder 410 is provided with a guide protrusion 411, the movable guide portion 411 cooperates with a guide groove 461 on the base 46 to realize the traverse guide constraint; the clamping holder 410 is provided with a hinge shaft 416 connected with the clamping part 412, a spring 413 is arranged at the tail end of the clamping part 412 and between the tail end of the clamping part 412 and the clamping holder 410, and a V-shaped groove 415 at the head end of the clamping holder 410 is matched with the head end of the clamping part to clamp the glass tube 10.
The device is provided with a receiving screen 6 right above a test board 42, and a laser spot lamp 7 is arranged on the receiving screen 6; the CCD camera 3 is arranged right above the receiving screen 6, and the glass tube fixing part 4 is fixedly provided with a reflecting device which is a reflecting mirror 11 in the embodiment, the reflecting mirror is attached to and placed on the end face of the glass tube or arranged parallel to the end face of the glass tube, and the reflecting mirror 11 can be synchronously adjusted when the glass tube 10 is adjusted; the light source irradiates the reflector 11, the reflector 11 reflects light to the receiving screen, and the size of the light spot position collected by the CCD camera 3 is combined with the size of the light source and the size of the reflecting point to realize the calculation of the end face angle of the glass tube.
On the basis of the above structure setting, the problem that often meets is that the terminal surface of glass pipe 10 can't all laminate on reflector 11, and the applicant can be fine solution this kind of drawback through improving, through set up balancing weight 12 on reflector 11's periphery, places reflector 11 on the glass pipe terminal surface after, realizes its counter weight when glass pipe 10 terminal surface is fixed through balancing weight 12, retrains its laminating reflector setting.
Further, the technical solution further discloses that the holder 8 fixes the CCD camera 3, as shown in fig. 3, the holder 8 includes a fixed holding portion 82 and a movable holding portion 81, the fixed holding portion 82 and the movable holding portion 81 are hinged and provided with pressing plates at the ends, respectively a fixed side pressing plate 83 and a movable side pressing plate 86, and the CCD camera 3 is clamped by the cooperation of the fixed side pressing plate 83 and the movable side pressing plate 86;
a first thread fixing block 85 is fixed on the fixed clamping portion 82 through a fixed supporting seat 84, a second thread fixing block 89 is fixed on the movable clamping portion 81 through a movable supporting seat 87, a screw penetrates through the fixed clamping portion 82 and the movable clamping portion 81 and is adjusted in a screwing mode through a screw force application handle 88, the pressing plates at the ends of the fixed clamping portion 82 and the movable clamping portion 81 are opened and closed through adjustment, and therefore clamping and loosening of the light spot collecting device are achieved.
After the structure is arranged, the light source emitted by the laser spot lamp 7 can be realized, the reflector 11 is fixed on the glass tube 10, the reflector 11 reflects light to the receiving screen 6, and the calculation of the end face angle of the glass tube is realized by combining the spot position size collected by the CCD camera 3 with the size of the light source and the size of the reflecting point, so that the inclination angle of the end face of the glass tube is determined.
The method for measuring the deflection angle of the end face of the glass tube by using the tester for the end face angle of the glass tube is described as follows:
the following parameters are preset on the above apparatus:
A. a light emitting point of the laser spot lamp; b. Reflecting points of the reflectors; c. Receiving the light spot received by the screen; d. DB ^ mirror surface, and angle ABD = ^ DBC;
E. after the reflector rotates by an angle a, receiving light spots received by the screen; f is a point on AE, FB T mirror surface; angle ABF =angleFBE; making a vertical line of EB from A, and taking the vertical foot as G;
step 1: presetting a point position A; presetting a C point position, a B point position, AC =10mm and AB =1200 mm; A. b, C the connection line of the three points is an isosceles triangle;
step 2: turning on a laser spot lamp 7, irradiating light emitted from a point A to a point B, and adjusting the angle of a reflector 11 to enable the reflected light spot to reach a point C of a receiving screen, wherein the reflector is in a horizontal state, and the angle ABD = arcsin (10/2/1200) =0.477 degrees;
and step 3: clamping a glass tube 10 in a V-shaped groove 415, presetting an inclination angle of the end face of the glass tube 10 as a (a <0.3 degrees), then = ABF = FBE = a +0.477, and through a formula a = (arcsin (AG/AB))/2-0.477 degrees, then = EAB = CAB <90 degrees; in this step, it is to be noted that, when adjusting the mirror rotation angle, as shown in fig. 8 and 9, point E must fall on the extension line of AC; after the size is limited, since ≈ EAG < ABE <0.3 ° +0.477 ° =0.777 °, AG ≈ AE, and further calculation, a ≈ (arcsin (AE/1200))/2-0.477 °;
at this time, a is the rotation angle of the reflector, namely the deflection angle of the end face of the glass tube.
The device and the angle measuring method fill the domestic blank in the optical fiber field, and the accuracy of the test data reaches the highest level of similar products at home and abroad through long-time practical verification.
Claims (10)
1. The utility model provides a glass pipe terminal surface angle tester which characterized in that: the glass tube fixing device comprises a glass tube fixing part and a light source, wherein a receiving screen is arranged between the light source and the glass tube fixing part; the glass tube fixing part is fixedly provided with a reflecting device, the reflecting device needs to be arranged by being attached to the end face of the glass tube or arranged parallel to the end face of the glass tube, and the reflecting device can be synchronously adjusted when the glass tube is adjusted; the light source irradiates the reflecting device, the reflecting device reflects light to the receiving screen, and the size of the light spot position collected by the light spot collecting device is combined with the size of the light source and the size of the reflecting point to realize the calculation of the end face angle of the glass tube.
2. The glass tube end face angle tester as claimed in claim 1, wherein: the glass tube fixing part is fixed on a test board, and an adjusting part is arranged on the test board to adjust the horizontal state of the test board.
3. The glass tube end face angle tester as claimed in claim 2, wherein: the device comprises a test board, and is characterized in that a vertical rod is arranged on the upper portion of the test board, two fixing clamps are arranged on the vertical rod, one fixing clamp is used for fixing a light source and a receiving screen, and the other fixing clamp is used for fixing a light spot collecting device.
4. The glass tube end face angle tester as claimed in claim 1, wherein: the reflecting device is a reflecting mirror, a balancing weight is arranged on the reflecting mirror, and the balancing weight is used for balancing when the end surface of the glass tube is fixed, so that the reflecting mirror is restrained from being attached.
5. The glass tube end face angle tester as claimed in claim 1, wherein: light spot collection system pass through the holder and be connected with the fixation clamp, the holder include a fixed clamping part and a activity clamping part, fixed clamping part and activity clamping part, all be provided with the screw thread fixed block on fixed clamping part and the activity clamping part, a screw rod runs through fixed clamping part and activity clamping part and revolves soon through screw rod application of force handle and twist the regulation, through adjusting the clamp plate that realizes fixed clamping part and activity clamping part tip and open and shut to this realization is to light spot collection system's centre gripping and is relaxed.
6. The glass tube end face angle tester as claimed in claim 1, wherein: the glass tube fixing part, the light source and the receiving screen are arranged in parallel; the device comprises a receiving screen, a light spot acquisition device, a CCD camera and a computer, wherein the light spot acquisition device is arranged corresponding to the receiving screen and is used for capturing a reflected light signal in the receiving screen through the CCD camera and realizing data calculation and analysis after the reflected light signal is connected with external equipment.
7. The glass tube end face angle tester as claimed in claim 1, wherein: the glass tube fixing part comprises a bottom plate, a bottom adjusting hole is formed in the bottom plate and used for achieving position adjustment, an adjusting seat is arranged on the upper portion of the bottom plate, a middle adjusting hole is formed in the adjusting seat, a vertical plate is further arranged on the adjusting seat, a vertical adjusting hole is formed in the vertical plate, a base is fixed on the vertical plate, a glass tube clamp is fixed on the base, and the glass tube clamp can swing and be adjusted on the base; the vertical adjusting hole comprises a hinge hole and a radian adjusting hole, and the base is fixed on the vertical plate through the matching of the two holes, so that the swinging adjustment is realized.
8. The glass tube end face angle tester as claimed in claim 1, wherein: the glass tube clamp comprises a clamp seat, wherein a movable guide part is arranged on the clamp seat, and the movable guide part is matched with a fixed guide part on the base to realize transverse movement guide restriction; the clamping seat is provided with a hinged shaft connected with the clamping part, an elastic component is arranged between the tail end of the clamping part and the clamping seat, and the head end of the clamping seat is matched with the head end of the clamping part to clamp the glass tube.
9. The method for measuring the deflection angle of the end face of a glass tube by the instrument for measuring the angle of the end face of a glass tube as claimed in any one of claims 1 to 8, wherein the method comprises: the following parameters are preset:
A. a light source point; b. Reflecting points of the reflectors; c. Receiving the light spot received by the screen; d. DB ^ mirror surface, and angle ABD = ^ DBC;
E. after the reflector rotates by an angle a, receiving light spots received by the screen; f is a point on AE, FB T mirror surface; angle ABF =angleFBE; making a vertical line of EB from A, and taking the vertical foot as G;
step 1: presetting a point position A; presetting a C point position, a B point position, AC = Xmm, AB = Ymm; A. b, C the connection line of the three points is an isosceles triangle;
step 2: the light emitted from the point A can be made to strike the point C of the receiving screen by adjusting the angle of the reflector, the reflector is in a horizontal state at the moment, and the angle ABD = arcsin (X/2/Y) = b;
and step 3: when the reflector rotates by an angle a (a <0.3 degrees), then ≈ ABF = ≈ FBE = a + b, a = (arcsin (AG/AB))/2-b, and then ≈ EAB = <90 degrees;
since < EAG < ABE <0.3 ° + b = d, AG ≈ AE,
a≈(arcsin(AE/1200))/2-0.477°；
at this time, a is the rotation angle of the reflector, namely the surface deflection angle of the glass tube.
10. The method for measuring a deflection angle of an end face of a glass tube by an angle measuring instrument for an end face of a glass tube according to claim 9, wherein: in step 3, when the mirror rotation angle a is adjusted, the point E is to fall on the extension line of the AC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111154361.8A CN113865517A (en) | 2021-09-29 | 2021-09-29 | Glass tube end face angle tester and measuring method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111154361.8A CN113865517A (en) | 2021-09-29 | 2021-09-29 | Glass tube end face angle tester and measuring method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113865517A true CN113865517A (en) | 2021-12-31 |
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ID=79000576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111154361.8A Pending CN113865517A (en) | 2021-09-29 | 2021-09-29 | Glass tube end face angle tester and measuring method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113865517A (en) |
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2021
- 2021-09-29 CN CN202111154361.8A patent/CN113865517A/en active Pending
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