CN102878955A - Measuring equipment and measuring method for eccentricity ratios of large-diameter preform - Google Patents
Measuring equipment and measuring method for eccentricity ratios of large-diameter preform Download PDFInfo
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Abstract
The invention discloses measuring equipment and a measuring method for eccentricity ratios of a large-diameter preform, belongs to the field of manufacture of optical fiber preforms, and relates to equipment and methods for measuring eccentricity ratios of preforms by mirror reflection measurement. The measuring equipment comprises a measuring table, a sliding table, a measuring table back plate, a detected data display screen, a data output display screen, a laser transmitting and receiving instrument support, an adjusting knob, a laser transmitting and receiving instrument, a rear linear guide rail, a left fixed roller bracket, a left support roller, a front linear guide rail, a graduated scale, a rotating motor, a moving bracket, a preform supporting rotating roller, a right fixed roller bracket, a right support roller, a left-right moving motor and a left-right moving lead screw. The measuring method includes steps of placing the preform on the left support roller and the right support roller on the left fixed roller bracket and the right fixed roller bracket, testing the surface of a body of the preform by the laser transmitting and receiving instrument in real time, recording data, collecting data of eccentricity ratios of various circumferential points around a first measuring point, computing an eccentricity ratio of the first measuring point by an eccentricity ratio computational formula; and measuring eccentricity ratio of a second measuring point.
Description
Technical field
The measuring equipment of a kind of major diameter prefabricated rods of the present invention excentricity and measuring method thereof belong to preform and make the field, relate to the Apparatus for () and method therefor that utilizes mirror reflection measuring prefabricated rods excentricity.
Background technology
The preform that at present general prefabricated rods enterprise produces is the vitreum of two-layer different refractivity, the relative surrounding layer excentricity of sandwich layer vitreum directly has influence on product quality, in the prefabricated rods production run, need accurately to measure excentricity, judge whether product is qualified, this is the key index of prefabricated rods.
Surveying instrument detection in early stage prefabricated rods excentricity mainly is by the refraction index test method, by the certain master bar of refractive index, demarcates, and calculates the refractive index of intermediate medium oil.Again the distribution signal of refractive index on a certain cross section of prefabricated rods is collected, calculated, calculate the prefabricated rods excentricity, and then be convenient to analyze the quality of prefabricated rods.But the method has the defective of self, along with the prefabricated rods diameter dimension is constantly done slightly, weight also strengthens thereupon, to existing measuring equipment chuck clamping carrying, the size capacity of oil storage tank, and the aspect of laser instrument all can not meet the demands, and existing on the market measuring equipment fails also to realize that major diameter (diameter 〉=10mm) measure by the prefabricated rods excentricity.
The defective that early stage, surveying instrument possessed comprises: 1) for the supporting different frock of the rod needs of different size, very poor to the change adaptability of product, can't satisfy the measurement that possesses simultaneously multi-specification; 2) early stage, surveying instrument was taked the refractive index principle, needed light to pass through whole rod, and is very high to the requirement of laser instrument, can't satisfy the measuring accuracy requirement after the chap of rod footpath.
Summary of the invention
The objective of the invention is for above-mentioned weak point, a kind of measuring equipment and measuring method thereof of major diameter prefabricated rods excentricity are provided, it is a kind of mirror-reflection principle of utilizing, accurately measure the Apparatus for () and method therefor of compound glass body excentricity, measuring accuracy reaches 0.01mm, satisfies large scale (diameter 〉=100m) the precision measure requirement of prefabricated rods excentricity fully.
A kind of measuring equipment of major diameter prefabricated rods excentricity and measuring method thereof take following technical scheme to realize: a kind of measuring equipment of major diameter prefabricated rods excentricity comprises test desk, Mobile Slide, the test desk backboard, detect data display screen, the data output display screen, Laser emission receiving instrument support, adjusting knob, the Laser emission receiving instrument, rear linear guides, left fixed idler whell carriage, the left support roller, front linear guides, rule, electric rotating machine, movable support bracket, hold in the palm excellent swing roller, right fixed idler whell carriage, the right support roller, move left and right motor and move left and right leading screw; In the test desk upper rear end test desk backboard is installed, is provided with at the test desk backboard and detects data display screen and data output display screen; Mobile Slide is installed on the front linear guides of test desk, test desk at the Mobile Slide left end is equipped with left fixed idler whell carriage, at left fixed idler whell carriage the left support roller is installed, test desk at the Mobile Slide right-hand member is equipped with right fixed idler whell carriage, at right fixed idler whell carriage the right support roller is installed; At Mobile Slide movable support bracket is installed, at movable support bracket electric rotating machine and the excellent swing roller of holder is installed, electric rotating machine links with the excellent swing roller of holder by the shaft coupling of installing on the output shaft, drives the excellent swing roller of holder by electric rotating machine and rotates; Linear guides after the Mobile Slide rear portion is equipped with, at rear linear guides Laser emission receiving instrument support is installed, the Laser emission receiving instrument is installed in Laser emission receiving instrument support front end, adjusting knob is installed on the Laser emission receiving instrument, is used for regulating Laser emission light and prefabricated rods center angle; At test desk the move left and right motor is installed, the move left and right motor output shaft links to each other with the move left and right screw mandrel by shaft coupling, the move left and right screw mandrel is installed in front linear guides and the rear linear guides, so that Laser emission receiving instrument and movable support bracket can move jointly.Rule is equipped with in section in face of the test desk, is used for the position of auxiliary judgement measurement point.
Described laser pick-off instrument support is the lifting type support, can regulate as required height.
Principle of work: the measuring equipment of a kind of major diameter prefabricated rods of the present invention excentricity is fixed on prefabricated rods by left fixed idler whell carriage, support roller, right fixed idler whell carriage and right support roller and measures on the table top, drive the prefabricated rods rotation by movable support bracket and the excellent swing roller of holder, it is mobile together that Laser emission receiving instrument and movable support bracket are followed Mobile Slide.By adjusting the height of adjusting knob and Laser emission receiving instrument support, control Laser emission receiving instrument impinges upon barred body surface angle and distance.Collect by the light that the Laser emission receiving instrument will be launched, amplify transmission through amplifier, through data collecting card, data are carried out analyzing and processing, calculate the distance L 1 of sandwich layer and surrounding layer and the distance L 2 of L1 symmetry direction sandwich layer and surrounding layer, L1 or L2 are converted to normal data, calculate excentricity by the conversion rate computing formula.
A kind of measuring method of measuring equipment of major diameter prefabricated rods excentricity comprises the steps:
1) prefabricated rods is placed on the left support roller and right support roller of left fixed idler whell carriage and right fixed idler whell carriage, guarantee that prefabricated rods can rotate freely, movable support bracket is moved to the first measurement point position and fixing, holder on movable support bracket rod swing roller is promoted to the prefabricated rods surface contacts fully, rotarily drive the prefabricated rods rotation by electric rotating machine; Adjust Laser emission receiving instrument support height, making Laser emission receiving instrument and prefabricated rods surface distance is 50～100mm; Adjust adjusting knob, thereby adjust laser and the barred body surface angle of the emission of Laser emission receiving instrument, obtain largest light intensity, and by detecting data display screen, observe the strongest two hunchbacked waveform; Connect electric rotating machine, drive the excellent swing roller rotation of holder and prefabricated rods and rotate, accept instrument by Laser emission and in real time the barred body surface is tested, and record data, collect this circumference each point excentricity data, and the circumferencial direction each point dual hump tables of data that measures is exported by amplifier; Utilize discrete method that above-mentioned data are screened by the Intouch shell script, reasonable valid data are calculated the excentricity of this position by program compiler (being the Intouch shell script) by the excentricity computing formula.
Described reasonable valid data refer to, and analyze data by discrete method, and a data of will faling apart are deleted, and getting maximal value in other data is this excentricity.
2) carrying out second point measures
Reduce the excellent swing roller of holder by PLC or single-chip microcomputer control program control, guarantee to hold in the palm excellent swing roller not contact with the prefabricated rods surface, the control electric rotating machine starts, the rotation of drive shaft coupling, movable support bracket is moved to the second point measuring position of setting by the move left and right leading screw, utilize the table top rule to carry out distance and confirm.Holder on movable support bracket rod swing roller is promoted to the prefabricated rods surface contacts fully; Connect electric rotating machine, driving the excellent swing roller of holder and prefabricated rods rotates, in real time the barred body surface is tested by the Laser emission receiving instrument, and record data, utilize the barred body rotation, collect each point excentricity data on this measuring position circumference, and the circumferencial direction each point dual hump tables of data that measures is exported by amplifier; Utilize discrete method to this data preparation screening by the intouch program, reasonable valid data are calculated by described intouch program, calculate the excentricity of this position by the excentricity computing formula.
Excentricity is the numerical value of single-point, and so-called second point is measured as for first in addition measurement of other point, can survey a plurality of points on the rod, and a plurality of points have different excentricities.
For the prefabricated rods of different radii, when measuring installation, its measuring method is identical with described step, only need adjust Laser emission receiving instrument support height, makes the Laser emission receiving instrument apart from prefabricated rods surface 50～100mm.Adjust adjusting knob, by the detection data display screen, can know and see the strongest two hunchbacked waveform.
For the prefabricated rods of different length, when measuring installation, adjust the position of left fixed idler whell carriage and right fixed idler whell carriage, then fixing, thus the measurement of realization different length prefabricated rods, its measuring method is identical with described step.
The present invention utilizes laser minute surface principle of reflection, can measure two-layer or multilayer prefabricated rods.Measuring principle utilizes Laser emission to go out LASER Light Source, and the inclination certain angle shines on the transparent prefabricated rods surface, guarantees angle of inclination and measuring distance by support adjusted device.Utilize laser different refractivity surface in prefabricated rods to reflect, adopt laser pickoff that the signal of specular light is collected, judge a plurality of positions such as glass sandwich layer outward flange and surrounding layer outward flange according to the strong and weak situation of change of mirror signal.Calculate the measuring distance of two positions by light signal, consider that light exists refraction the position deviation problem to occur in different medium, measurement data need to be converted, utilize convert formula to calculate glass sandwich layer outward flange and the outer peripheral actual accurate location of surrounding layer.At the uniform velocity rotate prefabricated rods, measure in the each point data on prefabricated rods surface, the row filter of going forward side by side calculates sandwich layer by formula again with respect to outer field misalignment value.
It has four benefits: the one, can measure the rod of different-diameter, and very strong to the specification change adaptability of product; The 2nd, the prefabricated rods of measuring different size does not need independent measurement frock, and directly distance just can realize between regulation meter and the rod; The 3rd, device structure is simple, and input cost is very low.The 4th, utilize the mirror-reflection principle, light does not require lower by whole prefabricated rods to Laser emission and receiver.
Description of drawings
The present invention is further described below with reference to accompanying drawing:
Fig. 1 is the structural representation of the measuring equipment of a kind of major diameter prefabricated rods of the present invention excentricity.
Fig. 2 is the measuring principle figure of the measuring equipment of a kind of major diameter prefabricated rods of the present invention excentricity.
Fig. 3 is the measurement data waveform schematic diagram of the measuring equipment of a kind of major diameter prefabricated rods of the present invention excentricity.
Among the figure: 1, detect data display screen, 2, Laser emission receiving instrument support, 3, adjusting knob, 4, the Laser emission receiving instrument, 5, rear linear guides, 6, prefabricated rods, 7, left fixed idler whell carriage, 8, the left support roller, 9, front linear guides, 10, rule, 11, electric rotating machine, 12, movable support bracket, 13, hold in the palm excellent swing roller, 14, the right support roller, 15, right fixed idler whell carriage, 16, shaft coupling, 17, the move left and right motor, 18, the move left and right leading screw, 19, the data output display screen, 20, test desk, 21, Mobile Slide, 22, the test desk backboard, 23, sandwich layer, 24, surrounding layer.
φ 1 is prefabricated rods sandwich layer 23 diameters, and φ 2 is prefabricated rods surrounding layer 24 diameters, and L1 is the distance of sandwich layer 23 and surrounding layer 24, and L2 is the distance of L1 symmetry direction sandwich layer 23 and surrounding layer 24.
Embodiment
With reference to accompanying drawing 1～3, a kind of measuring equipment of major diameter prefabricated rods excentricity comprises test desk 20, Mobile Slide 21, test desk backboard 22, detection data display screen 1, data output display screen 19, Laser emission receiving instrument support 2, adjusting knob 3, Laser emission receiving instrument 4, rear linear guides 5, left fixed idler whell carriage 7, left support roller 8, front linear guides 9, rule 10, electric rotating machine 11, movable support bracket 12, the excellent swing roller 13 of holder, right fixed idler whell carriage 15, right support roller 14, move left and right motor 17 and move left and right leading screw; In test desk 20 upper rear end test desk backboard 22 is installed, is provided with at test desk backboard 22 and detects data display screen 1 and data output display screen 19; Mobile Slide 21 is installed on the front linear guides 9 of test desk 20, test desk at Mobile Slide 21 left ends is equipped with left fixed idler whell carriage 7, at left fixed idler whell carriage 7 left support roller 8 is installed, test desk at Mobile Slide 21 right-hand members is equipped with right fixed idler whell carriage 15, at right fixed idler whell carriage 15 right support roller 14 is installed; At Mobile Slide 21 movable support bracket 12 is installed, at movable support bracket 12 electric rotating machine 11 and the excellent swing roller 13 of holder are installed, electric rotating machine 11 links with the excellent swing roller 13 of holder by the shaft coupling of installing on the output shaft, drives the excellent swing roller 13 of holder by electric rotating machine 11 and rotates; Linear guides 5 after Mobile Slide 21 rear portions are equipped with, at rear linear guides 5 Laser emission receiving instrument support 2 is installed, Laser emission receiving instrument 4 is installed in Laser emission receiving instrument support 2 front ends, adjusting knob 3 is installed on the Laser emission receiving instrument 4, is used for regulating Laser emission light and prefabricated rods center angle; At test desk 20 move left and right motor 17 is installed, move left and right motor 17 output shafts link to each other with move left and right screw mandrel 18 by shaft coupling 16, move left and right screw mandrel 18 is installed in front linear guides 9 and the rear linear guides 5, so that Laser emission receiving instrument 4 and movable support bracket 12 can move jointly.Rule 10 is equipped with in section in face of the test desk, is used for the position of auxiliary judgement measurement point.
Described laser pick-off instrument support 2 is the lifting type support, can regulate as required height.
Principle of work: the measuring equipment of a kind of major diameter prefabricated rods of the present invention excentricity is fixed on prefabricated rods 6 by left fixed idler whell carriage 7, support roller 8, right fixed idler whell carriage 15 and right support roller 14 and measures on the table top, drive prefabricated rods 6 rotations by movable support bracket 12 and the excellent swing roller 13 of holder, it is mobile together that Laser emission receiving instrument 4 and movable support bracket 12 are followed Mobile Slide 21.By adjusting the height of adjusting knob 3 and Laser emission receiving instrument support 2, control Laser emission receiving instrument 4 impinges upon barred body surface angle and distance.Collect by the light that Laser emission receiving instrument 4 will be launched, amplify transmission through amplifier, through data collecting card, data are carried out analyzing and processing, calculate sandwich layer 23 and the distance L 1 of surrounding layer 24 and the distance L 2 of L1 symmetry direction sandwich layer 23 and surrounding layer 24, L1 or L2 are converted to normal data, calculate excentricity by the conversion rate computing formula.
A kind of measuring method of measuring equipment of major diameter prefabricated rods excentricity comprises the steps:
1) prefabricated rods 6 is placed on the left support roller 8 and right support roller 14 of left fixed idler whell carriage 7 and right fixed idler whell carriage 15, guarantee that prefabricated rods 6 can rotate freely, movable support bracket 12 is moved to the first measurement point position and fixing, 12 holder rod swing roller 13 on the movable support bracket is promoted to prefabricated rods 6 surfaces contacts fully, rotarily drive prefabricated rods 6 rotations by electric rotating machine 11; Adjust Laser emission receiving instrument support 2 height, making Laser emission receiving instrument 4 and prefabricated rods 6 surface distances is 50～100mm; Adjust adjusting knob 3, thereby adjust laser and the barred body surface angle of 4 emissions of Laser emission receiving instrument, obtain largest light intensity, and by detecting data display screen 1, observe the strongest two hunchbacked waveform; Connect electric rotating machine 11, driving the excellent swing roller 13 of holder rotates and prefabricated rods 6 rotations, accepting instrument 4 by Laser emission tests the barred body surface in real time, and record data, collect this circumference each point excentricity data, and the circumferencial direction each point dual hump tables of data that measures is exported by amplifier; Utilize discrete method that above-mentioned data are screened by the Intouch shell script, reasonable valid data are calculated the excentricity of this position by program compiler (being the Intouch shell script) by the excentricity computing formula.
Described reasonable valid data refer to, and analyze data by discrete method, and a data of will faling apart are deleted, and getting maximal value in other data is this excentricity.
2) carrying out second point measures
Reduce the excellent swing roller 13 of holder by PLC or single-chip microcomputer control program control, guarantee to hold in the palm excellent swing roller 13 not contact with prefabricated rods 6 surfaces, control electric rotating machine 11 starts, the rotation of drive shaft coupling, movable support bracket 12 is moved to the second point measuring position of setting by move left and right leading screw 18, utilize table top rule 10 to carry out distance and confirm.Holder on the movable support bracket 12 rod swing roller 13 is promoted to prefabricated rods 6 surfaces contacts fully; Connect electric rotating machine 11, drive the excellent swing roller 13 of holder and prefabricated rods 6 rotations, in real time the barred body surface is tested by Laser emission receiving instrument 4, and record data, utilize the barred body rotation, collect each point excentricity data on this measuring position circumference, and the circumferencial direction each point dual hump tables of data that measures is exported by amplifier; Utilize discrete method to this data preparation screening by the intouch program, reasonable valid data are calculated by described intouch program, calculate the excentricity of this position by the excentricity computing formula.
For the prefabricated rods of different radii, when measuring installation, its measuring method is identical with described step, only need adjust Laser emission receiving instrument support 2 height, makes Laser emission receiving instrument 4 apart from prefabricated rods 6 surfaces 50～100mm.Adjust adjusting knob 3, by detection data display screen 1, can know and see the strongest two hunchbacked waveform.
For the prefabricated rods 6 of different length, when measuring installation, adjust the position of left fixed idler whell carriage 7 and right fixed idler whell carriage 14, then fixing, thus the measurement of realization different length prefabricated rods, its measuring method is identical with described step.
Claims (6)
1. the measuring equipment of a major diameter prefabricated rods excentricity is characterized in that: comprise test desk, Mobile Slide, test desk backboard, detection data display screen, data output display screen, Laser emission receiving instrument support, adjusting knob, Laser emission receiving instrument, rear linear guides, left fixed idler whell carriage, left support roller, front linear guides, rule, electric rotating machine, movable support bracket, holder rod swing roller, right fixed idler whell carriage, right support roller, move left and right motor and move left and right leading screw; In the test desk upper rear end test desk backboard is installed, is provided with at the test desk backboard and detects data display screen and data output display screen; Mobile Slide is installed on the front linear guides of test desk, test desk at the Mobile Slide left end is equipped with left fixed idler whell carriage, at left fixed idler whell carriage the left support roller is installed, test desk at the Mobile Slide right-hand member is equipped with right fixed idler whell carriage, at right fixed idler whell carriage the right support roller is installed; At Mobile Slide movable support bracket is installed, at movable support bracket electric rotating machine and the excellent swing roller of holder is installed, electric rotating machine links with the excellent swing roller of holder by the shaft coupling of installing on the output shaft, drives the excellent swing roller of holder by electric rotating machine and rotates; Linear guides after the Mobile Slide rear portion is equipped with, at rear linear guides Laser emission receiving instrument support is installed, the Laser emission receiving instrument is installed in Laser emission receiving instrument support front end, adjusting knob is installed on the Laser emission receiving instrument, is used for regulating Laser emission light and prefabricated rods center angle; At test desk the move left and right motor is installed, the move left and right motor output shaft links to each other with the move left and right screw mandrel by shaft coupling, the move left and right screw mandrel is installed in front linear guides and the rear linear guides, so that Laser emission receiving instrument and movable support bracket can move jointly; Rule is equipped with in section in face of the test desk, is used for the position of auxiliary judgement measurement point.
2. the measuring equipment of a kind of major diameter prefabricated rods excentricity according to claim 1, it is characterized in that: described laser pick-off instrument support is the lifting type support.
3. the measuring method of the measuring equipment of a kind of major diameter prefabricated rods excentricity claimed in claim 1 is characterized in that, comprises the steps:
1) prefabricated rods is placed on the left support roller and right support roller of left fixed idler whell carriage and right fixed idler whell carriage, guarantee that prefabricated rods can rotate freely, movable support bracket is moved to the first measurement point position and fixing, holder on movable support bracket rod swing roller is promoted to the prefabricated rods surface contacts fully, rotarily drive the prefabricated rods rotation by electric rotating machine; Adjust Laser emission receiving instrument support height, making Laser emission receiving instrument and prefabricated rods surface distance is 50～100mm; Adjust adjusting knob, thereby adjust laser and the barred body surface angle of the emission of Laser emission receiving instrument, obtain largest light intensity, and by detecting data display screen, observe the strongest two hunchbacked waveform; Connect electric rotating machine, drive the excellent swing roller rotation of holder and prefabricated rods and rotate, accept instrument by Laser emission and in real time the barred body surface is tested, and record data, collect this circumference each point excentricity data, and the circumferencial direction each point dual hump tables of data that measures is exported by amplifier; Utilize discrete method that above-mentioned data are screened by the Intouch shell script, reasonable valid data are calculated the excentricity of this position by program compiler by the excentricity computing formula;
2) carrying out second point measures
Reduce the excellent swing roller of holder by PLC or single-chip microcomputer control program control, guarantee to hold in the palm excellent swing roller not contact with the prefabricated rods surface, the control electric rotating machine starts, the rotation of drive shaft coupling, movable support bracket is moved to the second point measuring position of setting by the move left and right leading screw, utilize the table top rule to carry out distance and confirm; Holder on movable support bracket rod swing roller is promoted to the prefabricated rods surface contacts fully; Connect electric rotating machine, driving the excellent swing roller of holder and prefabricated rods rotates, in real time the barred body surface is tested by the Laser emission receiving instrument, and record data, utilize the barred body rotation, collect each point excentricity data on this measuring position circumference, and the circumferencial direction each point dual hump tables of data that measures is exported by amplifier; Utilize discrete method to this data preparation screening by the intouch program, reasonable valid data are calculated by described intouch program, calculate the excentricity of this position by the excentricity computing formula.
4. the measuring method of the measuring equipment of a kind of major diameter prefabricated rods excentricity according to claim 3, it is characterized in that: the reasonable valid data described in the described step 1) refer to, analyze data by discrete method, a data of will faling apart are deleted, and getting maximal value in other data is this excentricity.
5. the measuring method of the measuring equipment of a kind of major diameter prefabricated rods excentricity according to claim 3, it is characterized in that: for the prefabricated rods of different radii, when measuring installation, its measuring method is identical with described step, adjust Laser emission receiving instrument support height, make the Laser emission receiving instrument apart from prefabricated rods surface 50～100mm, adjust adjusting knob, by detecting data display screen, see the strongest two hunchbacked waveform.
6. the measuring method of the measuring equipment of a kind of major diameter prefabricated rods excentricity according to claim 3, it is characterized in that: for the prefabricated rods of different length, when measuring installation, adjust the position of left fixed idler whell carriage and right fixed idler whell carriage, then fixing, thereby realize the measurement of different length prefabricated rods, its measuring method is identical with the step of described measuring method.
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| CN201210378949.6A CN102878955B (en) | 2012-10-09 | 2012-10-09 | Measuring equipment and measuring method for eccentricity ratios of large-diameter preform |
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