CN109443279A - A kind of lens detector for outer diameter error non-rotating detection method - Google Patents
A kind of lens detector for outer diameter error non-rotating detection method Download PDFInfo
- Publication number
- CN109443279A CN109443279A CN201811455620.9A CN201811455620A CN109443279A CN 109443279 A CN109443279 A CN 109443279A CN 201811455620 A CN201811455620 A CN 201811455620A CN 109443279 A CN109443279 A CN 109443279A
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- Prior art keywords
- lens
- checked
- outer diameter
- sensor
- detector
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Classifications
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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
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/10—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring diameters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/0002—Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured
- G01B5/0004—Supports
Abstract
The present invention relates to lens detection method technical fields, in particular to a kind of lens detector for outer diameter error non-rotating detection method.1) coordinate system is established；2) 3 coordinates in external circle of lens edge to be checked, are measured；3) determining diameter of a circle D1, is calculated according to three-point circle principle to survey, and D1 is surveyed and is compared with lens outer diameter setting value D to be checked；4) diameter of a circle for, calculating other 3 points confirmations according to the method described above, is then compared, until determining that the lens are qualified product or rejected product.Lens to be checked of the invention are fixed in the detection process, sensor probe will not cause to scratch to external circle of lens to be checked, the structural intergrity of lens to be checked is not influenced, and confirm whether lens to be checked meet design requirement in such a way that sensor probe measures coordinate, measurement method is simply accurate, and being directed to lens detection has great promotional value.
Description
Technical field
The present invention relates to lens detection method technical fields, in particular to a kind of lens detector for outer diameter error non-rotating detection side
Method.
Background technique
In manufacture lens process, lens diameter is inevitably made to generate error, when lens outer diameter exception, will affect product quality,
It will affect lens using effect not serious, therefore, the detection of lens outer diameter is that lens manufacture essential process.
Substantially there are two types of forms for existing lens outer diameter detection method:
It is non-contact detection one is being detected using laser diameter measuring instrument, testing principle is by emitting to lens to be checked
Light type number, by being analyzed away from the projection of optical signal side lens to be checked, judge lens to be checked detector for outer diameter error whether
Meet design requirement.This detection method does not need contact lens, will not cause to damage to lens to be checked in detection process, such as specially
Benefit number is exactly that optics is used to examine for the Chinese utility model patent of entitled " the eyeglass outer diameter measuring system " of " CN206648604U "
Survey method carries out eyeglass monitoring.When but this method is applied to lens detection, lens itself have good translucency, light letter
When number being applied on lens, the projection of generation and the projection of light-proof material be it is different, biggish error can be generated, therefore
For lens, this optical detecting method reliability is not high.
Another kind is manually using miking, is contact type measurement, such as the name of Patent No. " CN207515683U "
For the Chinese utility model patent of " glass substrate precision outer diameter detector ", the patent describe a kind of detection devices, by right
Glass substrate and micrometric screw carry out while fixed, the then detection using micrometric screw to glass substrate progress detector for outer diameter error,
This detection method is relatively simple, also solves the prior art and a hand-held glass substrate one is needed to hold micrometer or micrometer spiral shell
There are different personnel's measurements there are measurement standards in the method that the detection devices such as bar are detected different.But this measurement
Method belongs to contact measurement method, can produce relative rotation between determinand and measuring device in measurement process, measuring device
It can be contacted with the outer circle of determinand to cause the damage of determinand, and measurement can only measure pair on determinand outer diameter every time
Point, measurement efficiency are too low.
Summary of the invention
Present invention aim to the prior arts for solving to mention in above-mentioned background technique in measurement lens detector for outer diameter error
When there are errors larger, low efficiency, there is the problems such as wind direction for scratching lens, a kind of lens detector for outer diameter error non-rotating inspection is provided
Survey method.
The technical solution of the present invention is as follows: a kind of lens detector for outer diameter error non-rotating detection method, it is characterised in that: including with
Lower step: 1) it, by be checked lens is fixed on detection jig, establishes coordinate system；
2) sensor that at least three or more, are arranged in the surrounding of lens to be checked, calculates three and is not arranged on the same straight line
The coordinate parameters A that pops one's head in after its probe contacts to the radial outer edge of lens to be checked of sensor11、A12、A13；
3) A, is passed through according to three-point circle principle11、A12、A13Calculate the diameter of a circle D of 3 points of determinations1, by D1With it is to be checked
Mirror outer diameter setting value D is compared, if D1It is within the scope of design error with D difference, it is believed that under this time measurement outside lens to be checked
Diameter error meets design requirement, otherwise it is assumed that lens detector for outer diameter error to be checked does not meet design requirement under this time measurement；
4), after being measured for the first time, the sensor being not arranged on the same straight line by the other three is to lens to be checked
Second of detector for outer diameter error measurement is carried out, measurement result is analyzed according to the method that step 3) is recorded, is successively carried out until complete
It is measured at n times detector for outer diameter error, if the measurement result for not meeting design requirement in the measurement of n times detector for outer diameter error is less than m times, then it is assumed that should
Lens to be checked are qualified product, otherwise it is assumed that the lens to be checked are rejected product.
In the further step 1), lens to be checked are fixed on the method on detection jig are as follows: by lens to be checked
It is placed on detection jig in the horizontal direction, even if the axis of lens to be checked is arranged in a vertical direction.
In the step 1), the method for establishing coordinate system are as follows: using the center of lens to be checked as the center of circle, with to
The axis of inspection lens is Z axis, using the plane for passing through lens centre to be checked and vertical lens axis to be checked establishes coordinate as XOY plane
System.
In the further step 2), in the method that the surrounding of lens to be checked arranges at least three or more sensor
Are as follows: arrange that two lines pass through the sensor of lens centre to be checked in the horizontal longitudinal two sides of lens to be checked, it is horizontal in lens to be checked
Both lateral sides arrange that other two line passes through the sensor of lens centre to be checked.
In the step 2), pass through one of two lens of lens both lateral sides to be checked and longitudinal side
The radial outer edge of the probe contacts of lens lens to be checked or pass through two lens of lens both lateral sides to be checked and longitudinal another
The radial outer edge of the probe contacts lens to be checked of one lens of side or by two lens of lens longitudinal direction to be checked two sides and
The radial outer edge of the probe contacts lens to be checked of one lens of lateral side or pass through lens longitudinal direction to be checked two sides two
The radial outer edge of the probe contacts lens to be checked of lens and a lens of the lateral other side.
In the further step 2), calculates sensor and visited after its probe contacts to the radial outer edge of lens to be checked
The coordinate parameters A of head11、A12、A13Method are as follows: the sensor is the displacement sensor of recordable moving distance, before measurement
First record the coordinate parameters A to pop one's head under sensor original state01、A02、A03, driving sensor is mobile to keep its probe contacts to be checked
The radial outer edge of lens re-records the shift value L of sensor1、L2、L3, converted and obtained outside probe contacts lens to be checked by coordinate
Coordinate value A when diameter edge11、A12、A13。
The method of the further mobile radial outer edge for making its probe contacts lens to be checked of the driving sensor are as follows: drive
Dynamic sensor make its probe along coordinate system X to or Y-direction move until touching the radial outer edges of lens to be checked.
In the further step 4), the sensor that driving the other three is not arranged on the same straight line is carried out second
The method of detector for outer diameter error measurement are as follows: drive three that at least one sensor is different from sensor used in first time outside diameter measuring
Sensor carries out second of detector for outer diameter error measurement.
The further n is more than or equal to 4.
The further m is equal to 1.
Advantages of the present invention has: 1, the outer circular edge of measurement method sensor probes contact lens to be checked of the invention, no
Lens to be checked can be caused to scratch, lens to be checked are stationary state in entire detection process, will not cause its structure any damage
Wound；
2, measurement method sensor probe of the invention obtains 3 coordinates on external circle of lens to be checked by displacement conversion, so
Diameter of a circle is determined by 3 coordinate acquisitions afterwards, and being compared with setting value can obtain whether lens to be checked meet the requirements, inspection
Survey method is simple, efficient, and error is small, and precision is high；
3, measurement of the invention and method be by driving sensor probe along X to or Y-direction move, displacement conversion sit
It is more simple to mark calculation method, compared to existing more efficient, the calculating by way of calculating lens projects area and being converted
It is more accurate.
Measurement method of the invention is simple, efficiently, and will not lens to be checked be caused with any damage, testing result more subject to
Really, there is great promotional value.
Detailed description of the invention
Fig. 1: lens to be checked of the invention and sensor arragement construction schematic diagram before detection；
Fig. 2: structural schematic diagram when sensor of the invention probe contacts are to external circle of lens edge to be checked；
Wherein: 1-lens to be checked；2-sensors.
Specific embodiment
The following further describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
The present embodiment is used to carry out error-detecting to lens 1 to be checked, and specific detecting step is as follows:
1, lens 1 to be checked are fixed on detection jig, the mode that sucker is usually used consolidates lens 1 to be checked
It is fixed, it avoids that lens 1 to be checked are caused to damage, lens 1 to be checked are placed in the horizontal direction on detection jig, the level of the present embodiment
Direction refers to that the axis of lens 1 to be checked is arranged in a vertical direction, and after the completion of lens 1 to be checked are fixed, coordinate system is established, with lens to be checked
1 center is the center of circle (O point as shown in Figure 1), using the axis of lens 1 to be checked as Z axis, to pass through the center of circle and vertical with Z axis
Horizontal plane be XOY plane, can be using transverse direction as X to longitudinal direction is as Y-direction, as shown in Figure 1, the present embodiment
Transverse direction be Fig. 1 in left and right directions, longitudinally refer to the up and down direction in Fig. 1.
2, lens 1 to be checked surrounding arrange four sensors 2,2 pneumatic displacement sensors of sensor of the present embodiment,
Sensor 2 is connect with control device, is controlled by control device, and it is logical that the displacement parameter that sensor 2 obtains is sent to control device
It crosses control device to be handled, four displacement sensors 2 of the present embodiment are placed in be checked according to mode positioned opposite two-by-two
The surrounding of lens 1, two biographies of 1 both lateral sides of lens to be checked that are symmetrically placed in centered on 1 center of circle of lens to be checked including two
Sensor 2, two sensors 2 of two longitudinal two sides of lens 1 to be checked that are symmetrically placed in centered on 1 center of circle of lens to be checked.
Record the coordinate A of four sensors, 2 original state lower sensor 2 probe01、A02、A03, four biographies of the present embodiment
Sensor 2 is in same level with lens 1 to be checked, therefore coordinate value is only with record X-coordinate and Y-coordinate.Then it controls
It is mobile to lens 1 to be checked that device controls three sensors 2 in four sensors 2, move mode according to along X to or Y-direction move,
I.e. along X to moving, the sensor 2 of longitudinal two sides moves the sensor 2 of both lateral sides along Y-direction, until being moved to the spy of sensor 2
Head touches the outer circular edge of lens 1 to be checked, as shown in Fig. 2, 2 displacement parameter of sensor is sent to control device, control device
Pass through the probe co-ordinate value after the initial coordinate and displacement calculation probe contacts to 1 outer circular edge of lens to be checked of these probes
A11、A12、A13。
The present embodiment setting to lens 1 to be checked there are four that can carry out 4 measurements when sensor 2, i.e. actual measurement, respectively
It is the outer diameter by the probe contacts lens to be checked of a lens of two lens and longitudinal side of lens both lateral sides to be checked
Edge or to be checked by the probe contacts of two lens of lens both lateral sides to be checked and a lens of longitudinal other side
The radial outer edge of mirror or probe contacts by two lens of lens longitudinal direction to be checked two sides and a lens of lateral side
The radial outer edge of lens to be checked or pass through two lens of lens longitudinal direction to be checked two sides and a lens of the lateral other side
The radial outer edge of probe contacts lens to be checked.When the surrounding of lens 1 to be checked is provided with n sensor 2, pendulous frequency is
Secondary, measurement only needs to have at least one sensor 2 and measuring three sensors 2 of other batches in three sensors 2 every time
Difference.
3,2 probe co-ordinate A of first time measurement sensor is passed through according to three-point circle principle11、A12、A13It determines a circle, counts
Calculate diameter of a circle D1, then by diameter D1With setting value D0It is compared, if the difference of the two is in setting error range
It is interior, then it is assumed that the lens to be checked 1 of the secondary detection meet design requirement, if the difference of the two is recognized beyond setting error range
Design requirement is not met for the lens to be checked 1 of the secondary detection.
Likewise, carrying out diameter comparing calculation to the detection of other batches using identical method, determine that these batches are examined
Whether the lens to be checked 1 in survey meet design requirement.
The control device of the present embodiment can be stored in the error alarming value of lens 1 to be checked, when detection calculating in detection process
Diameter and setting value diameter error are more than alarming value, control device will 1 outer diameter of lens to be checked of the warning note secondary detection miss
Difference does not meet design requirement.
The detection of the present embodiment can carry out four detections to lens 1 to be checked, as long as wherein one-time detection determines lens 1 to be checked
Detector for outer diameter error do not meet design requirement, will determine that the lens 1 to be checked do not meet design requirement, be rejected product.
In actual use, multiple sensors 2 can be set in the surrounding of lens 1 to be checked, carries out the detection point of n times detector for outer diameter error
Analysis, if the number for not meeting design requirement in n times detection process is less than m times, that is it is determined that 1 qualification of lens to be checked
Otherwise product are rejected product.It is actually detected, n can be set greater than equal to 4, m 1.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, various changes and improvements may be made to the invention without departing from the spirit and scope of the present invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent defines.
Claims (10)
1. a kind of lens detector for outer diameter error non-rotating detection method, it is characterised in that: the following steps are included: 1), by lens to be checked
It is fixed on detection jig, establishes coordinate system；
2) sensor that at least three or more, are arranged in the surrounding of lens to be checked, calculates three biographies being not arranged on the same straight line
Coordinate parameters A11, A12, A13 that sensor is popped one's head in after its probe contacts to the radial outer edge of lens to be checked；
3) the diameter of a circle D1 for, calculating 3 points of determinations by A11, A12, A13 according to three-point circle principle, by D1 and lens to be checked
Outer diameter setting value D is compared, if D1 and D difference are within the scope of design error, it is believed that lens outer diameter to be checked under this time measurement
Error meets design requirement, otherwise it is assumed that lens detector for outer diameter error to be checked does not meet design requirement under this time measurement；
4), after being measured for the first time, lens to be checked are carried out by the sensor that the other three is not arranged on the same straight line
Second of detector for outer diameter error measurement, analyzes measurement result according to the method that step 3) is recorded, and successively carries out until completing n times
Detector for outer diameter error measurement, if the measurement result for not meeting design requirement in the measurement of n times detector for outer diameter error is less than m times, then it is assumed that this is to be checked
Lens are qualified product, otherwise it is assumed that the lens to be checked are rejected product.
2. a kind of lens detector for outer diameter error non-rotating detection method as described in claim 1, it is characterised in that: the step
1) in, lens to be checked are fixed on the method on detection jig are as follows: lens to be checked are placed in the horizontal direction on detection jig,
Even if the axis of lens to be checked is arranged in a vertical direction.
3. a kind of lens detector for outer diameter error non-rotating detection method as claimed in claim 2, it is characterised in that: the step
1) in, the method for establishing coordinate system are as follows: using the center of lens to be checked as the center of circle, using the axis of lens to be checked as Z axis, with pass through to
The plane of inspection lens centre and vertical lens axis to be checked is that XOY plane establishes coordinate system.
4. a kind of lens detector for outer diameter error non-rotating detection method as described in claim 1, it is characterised in that: the step
2) in, in the method that the surrounding of lens to be checked arranges at least three or more sensor are as follows: in the horizontal longitudinal two sides of lens to be checked
It arranges that two lines pass through the sensor of lens centre to be checked, arranges that other two line is worn in lens horizontal cross to be checked two sides
Cross the sensor of lens centre to be checked.
5. a kind of lens detector for outer diameter error non-rotating detection method as claimed in claim 4, it is characterised in that: the step
2) in, pass through the outer of the probe contacts lens to be checked of two lens of lens both lateral sides to be checked and a lens of longitudinal side
Diameter edge or to be checked by the probe contacts of two lens of lens both lateral sides to be checked and a lens of longitudinal other side
It the radial outer edge of lens or is connect by the probe of two lens of lens longitudinal direction to be checked two sides and a lens of lateral side
Touch the radial outer edge of lens to be checked or by two lens of lens longitudinal direction to be checked two sides and a lens of the lateral other side
Probe contacts lens to be checked radial outer edge.
6. a kind of lens detector for outer diameter error non-rotating detection method as described in claim 1, it is characterised in that: the step
2) in, calculate coordinate parameters A11, A12, A13's that sensor is popped one's head in after its probe contacts to the radial outer edge of lens to be checked
Method are as follows: the sensor is the displacement sensor of recordable moving distance, is first recorded under sensor original state before measurement
Coordinate parameters A01, A02, A03 of probe, the mobile radial outer edge for making its probe contacts lens to be checked of driving sensor, re-record
Shift value L1, L2, L3 of sensor, by coordinate convert coordinate value A11 when obtaining probe contacts lens radial outer edge to be checked,
A12、A13。
7. a kind of lens detector for outer diameter error non-rotating detection method as claimed in claim 6, it is characterised in that: the driving
The method of the mobile radial outer edge for making its probe contacts lens to be checked of sensor are as follows: driving sensor makes its probe along coordinate system X
To or Y-direction it is mobile until touching the radial outer edge of lens to be checked.
8. a kind of lens detector for outer diameter error non-rotating detection method as described in claim 1, it is characterised in that: the step
4) in, the method for sensor second of detector for outer diameter error measurement of progress that driving the other three is not arranged on the same straight line are as follows: driving
At least one sensor three sensors different from sensor used in first time outside diameter measuring carry out second of detector for outer diameter error
Measurement.
9. a kind of lens detector for outer diameter error non-rotating detection method as described in claim 1, it is characterised in that: the n is big
In equal to 4.
10. a kind of lens detector for outer diameter error non-rotating detection method as described in claim 1, it is characterised in that: the m etc.
In 1.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811455620.9A CN109443279A (en) | 2018-11-30 | 2018-11-30 | A kind of lens detector for outer diameter error non-rotating detection method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811455620.9A CN109443279A (en) | 2018-11-30 | 2018-11-30 | A kind of lens detector for outer diameter error non-rotating detection method |
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|---|---|---|---|---|
| JP2000230810A (en) * | 1999-02-08 | 2000-08-22 | Toray Ind Inc | Shape measuring method for film roll |
| KR20050043018A (en) * | 2003-11-04 | 2005-05-11 | 현대자동차주식회사 | Apparatus for sensing dimension of tire using laser displacement sensor |
| CN1752714A (en) * | 2005-10-26 | 2006-03-29 | 武汉理工大学 | Optical projection measurer for external diameter of large wheel diameter |
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Application publication date: 20190308 |