CN102997870A - Optical detection method and device for coaxiality - Google Patents
Optical detection method and device for coaxiality Download PDFInfo
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- CN102997870A CN102997870A CN2012105249257A CN201210524925A CN102997870A CN 102997870 A CN102997870 A CN 102997870A CN 2012105249257 A CN2012105249257 A CN 2012105249257A CN 201210524925 A CN201210524925 A CN 201210524925A CN 102997870 A CN102997870 A CN 102997870A
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Abstract
The invention relates to the field of coaxiality detection, particularly to an optical detection method and a device for the coaxiality, and aims at overcoming the defects that the existing measuring method for the coaxiality of a round bar adopts contact measurement and the measurement accuracy is low. Non-contact measurement can be achieved and the measurement accuracy is high through the high-accuracy optical detection method based on non-contact measurement. Images are processed by a computer, the detection is rapid, and the detection efficiency of the coaxiality of the round bar can be greatly improved. According to the method and the device, parameters of theta1 and theta2 are obtained through detecting and acquiring digital image signals of a reference round bar and an opposite round bar, and coaxiality axis offset parameters and axis included angle parameters of the reference round bar and the opposite round bar are calculated.
Description
Technical field
The present invention relates to a kind of right alignment detection field, especially relate to a kind of right alignment optical detecting method and device.
Background technology
In fields such as industry, machinery, scientific researches, often need the right alignment of two round bars is carried out quantitative measurment.As shown in Figure 1, the round bar axis has not overlapped three kinds of situations: 1) as described in Fig. 1 a, the parallel but O point of X1, X2 does not overlap with X1; 2) shown in Fig. 1 b, angle is arranged for X1, X2 but the O point overlaps with X1; 3) shown in Fig. 1 c, X1, X2 have angle and O point not to overlap with X1.
Method for measuring coaxiality for round bar mainly is the mechanical collimation method at present.The mechanical collimation method is to be based upon the measuring method of carrying out on the mechanical basis in kind, mainly contain and draw steel wire method or gauge method, owing to reasons such as steel wire amount of deflection, ambient vibration, fret wears, the measuring accuracy of mechanical collimation method is lower, and owing to adopt contact type measurement, inapplicable under a lot of environment.
Summary of the invention
Technical matters to be solved by this invention is: adopt contact type measurement and the lower shortcoming of measuring accuracy in order to overcome existing round bar method for measuring coaxiality, the invention provides a kind of high precision right alignment optical detecting method based on non-cpntact measurement, the method can realize non-cpntact measurement, and measuring accuracy is higher.By the Computer Processing image, detect fast simultaneously, can greatly improve the right alignment detection efficiency of round bar.
The technical solution used in the present invention is as follows:
A kind of right alignment optical detecting method comprises
Step 1: the first optical detection apparatus, the second optical detection apparatus gather respectively benchmark round bar and round bar data image signal in opposite directions;
Step 2: processor receives the data image signal that the first optical detection apparatus gathers, obtain benchmark round bar and round bar axis the first angle theta 1 in opposite directions, benchmark round bar and the axis first offset component y1 of round bar in opposite directions, by the detection diameter value D1 of the first optical detection apparatus to the benchmark round bar, processor receives the data image signal that the second optical detection apparatus gathers, obtain benchmark round bar and round bar axis the second angle theta 2 in opposite directions, benchmark round bar and the axis second offset component y2 of round bar in opposite directions, by the detection diameter value D2 of the second optical detection apparatus to the benchmark round bar, calculate benchmark round bar and the right alignment journal offset parameter d of round bar in opposite directions, axis angle parameter θ.
Described the first optical detection apparatus optical axis and the second optical detection apparatus optical axis included angle are φ, and described φ scope is: 0 °＜φ＜180 °, and be positioned at and the vertical same plane of benchmark round bar.
The benchmark round bar calculates detailed process with the right alignment of round bar in opposite directions and is in the described step 2:
Step 21: the first optical measuring device gathers benchmark round bar and round bar data image signal in opposite directions, and the data image signal that processor receives the output of the first optical measuring device obtains the benchmark round bar and detects diameter value D1, benchmark round bar and round bar axis angle θ 1 in opposite directions, benchmark round bar and the journal offset component y1 of round bar in opposite directions; Processor obtains the sampling rate of the first optical measuring device according to formula (1)
（1）
Wherein D is benchmark round bar actual diameter, and D1 is that the in opposite directions round bar that the first optical measuring device obtains detects diameter value;
Step 22: processor calculates the first offset component d1 according to formula (2):
Wherein y1 be in the data image signal that gathers of the first optical measuring device in opposite directions round bar with respect to the axle offset value of benchmark round bar.
Step 23: the second optical measuring device gathers benchmark round bar and round bar data image signal in opposite directions, and the data image signal that processor receives the output of the second optical measuring device obtains the benchmark round bar and detects diameter value D2, benchmark round bar and round bar axis angle θ 2 in opposite directions, benchmark round bar and the journal offset component y2 of round bar in opposite directions; Processor obtains the sampling rate of the second optical measuring device according to formula (3)
Wherein D2 is that the in opposite directions round bar that the second optical measuring device obtains detects diameter value;
Step 24: processor calculates the second offset component d2 according to formula (4):
Wherein y2 be in the data image signal that gathers of the second optical measuring device in opposite directions round bar with respect to the axle offset value of benchmark round bar.
Step 25: obtain in opposite directions round bar with respect to the right alignment journal offset parameter d of benchmark round bar according to formula (5),
（5）
The right alignment axis angle parameter θ of round bar relative datum round bar and θ 1, θ 2, φ satisfy formula (6) in opposite directions
Can obtain right alignment axis angle parameter θ value.
Described when φ=90 °, respectively according to formula (7) and (8)
（7）
（8）
Obtain benchmark round bar and in opposite directions right alignment journal offset parameter d and the axis angle parameter θ value of round bar.
Described processor carries out at first successively when getting access to the data image signal of the first optical measuring device or the second optical measuring device that squelch is processed, image gradient is processed, edge detection process.
Described the first optical detection apparatus or the second optical detection apparatus are the ICCD video cameras.
A kind of right alignment optical detection apparatus comprises the first optical detection apparatus, be used for to gather benchmark round bar and round bar data image signal in opposite directions; The second optical detection apparatus be used for to gather benchmark round bar and round bar data image signal in opposite directions, and described the first optical detection apparatus optical axis and the second optical detection apparatus optical axis included angle are φ, and are positioned at and the vertical same plane of benchmark round bar; Processor, be used for receiving the data image signal that the first optical detection apparatus gathers, obtain benchmark round bar and round bar axis the first angle theta 1 in opposite directions, benchmark round bar and the axis first offset component y1 of round bar in opposite directions, by the detection diameter value D1 of the first optical detection apparatus to the benchmark round bar, processor, and for the data image signal that receives the collection of the second optical detection apparatus, obtain benchmark round bar and round bar axis the second angle theta 2 in opposite directions, benchmark round bar and the axis second offset component y2 of round bar in opposite directions, by the detection diameter value D2 of the second optical detection apparatus to the benchmark round bar, calculate benchmark round bar and the right alignment journal offset parameter d of round bar in opposite directions, axis angle parameter θ.
Described calculating benchmark round bar comprises with the right alignment concrete steps of round bar in opposite directions:
Step 31: the first optical measuring device gathers benchmark round bar and round bar data image signal in opposite directions, and the data image signal that processor receives the output of the first optical measuring device obtains the benchmark round bar and detects diameter value D1, benchmark round bar and round bar axis angle θ 1 in opposite directions, benchmark round bar and the journal offset component y1 of round bar in opposite directions; Processor obtains the sampling rate of the first optical measuring device according to formula (1)
Wherein D is benchmark round bar actual diameter, and D1 is that the in opposite directions round bar that the first optical measuring device obtains detects diameter value;
Step 32: processor calculates the first offset component d1 according to formula (2):
（2）
Wherein y1 be in the data image signal that gathers of the first optical measuring device in opposite directions round bar with respect to the axle offset value of benchmark round bar.
Step 33: the second optical measuring device gathers benchmark round bar and round bar data image signal in opposite directions, and the data image signal that processor receives the output of the second optical measuring device obtains the benchmark round bar and detects diameter value D2, benchmark round bar and round bar axis angle θ 2 in opposite directions, benchmark round bar and the journal offset component y2 of round bar in opposite directions; Processor obtains the sampling rate of the second optical measuring device according to formula (3)
Wherein D2 is that the in opposite directions round bar that the second optical measuring device obtains detects diameter value;
Step 34: processor calculates the second offset component d2 according to formula (4):
（4）
Wherein y2 be in the data image signal that gathers of the second optical measuring device in opposite directions round bar with respect to the axle offset value of benchmark round bar.
Step 35: obtain in opposite directions round bar with respect to the right alignment journal offset parameter d of benchmark round bar according to formula (5),
The right alignment axis angle parameter θ of round bar relative datum round bar and θ 1, θ 2, φ satisfy formula (6) in opposite directions
Can obtain right alignment axis angle parameter θ value.
Described when φ=90 °, respectively according to formula (7) and (8)
Obtain benchmark round bar and in opposite directions right alignment journal offset parameter d and the axis angle parameter θ value of round bar.
Described processor carries out at first successively when getting access to the data image signal of the first optical measuring device or the second optical measuring device that squelch is processed, image gradient is processed, edge detection process, and described the first optical detection apparatus or the second optical detection apparatus are the ICCD video cameras.
In sum, owing to adopted technique scheme, the invention has the beneficial effects as follows:
Utilize the first optical detection apparatus, the second optical detection apparatus obtains benchmark round bar and the data image signal of round bar in opposite directions, and transfer to processor and process, can obtain the benchmark round bar and detect diameter value, benchmark round bar and round bar axis angle in opposite directions, benchmark round bar and the axle offset value of round bar in opposite directions in the data image signal, angle in conjunction with benchmark round bar actual diameter and the first optical detection apparatus and the second optical detection apparatus, calculate benchmark round bar and the right alignment journal offset parameter of round bar in opposite directions, the axis angle parameter, the method can realize non-cpntact measurement, and measuring accuracy is higher.By computer based processor processing digital images signal, detect fast simultaneously, can greatly improve the right alignment detection efficiency of round bar.
Description of drawings
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein:
Fig. 1 is the situation that the round bar axis does not overlap;
Fig. 1 a is that X1, X2 are parallel but the O point does not overlap situation with X1;
Fig. 1 b is that X1, X2 have angle but the O point overlaps situation with X1;
Fig. 1 c is that X1, X2 have angle and O point not to overlap with X1
Fig. 2 is the benchmark round bar and the axis first offset component y1 of round bar in opposite directions and benchmark round bar and round bar axis the first angle theta 1 synoptic diagram in opposite directions;
Fig. 3 is apparatus of the present invention connection diagrams.
Reference numeral 1-benchmark round bar 2-is round bar 3-the first optical measuring device in opposite directions
4-the second optical measuring device 5-processor
Embodiment
Disclosed all features in this instructions, or the step in disclosed all methods or the process except mutually exclusive feature and/or step, all can make up by any way.
Disclosed arbitrary feature in this instructions (comprising any accessory claim, summary and accompanying drawing) is unless special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, unless special narration, each feature is an example in a series of equivalences or the similar characteristics.
Related description of the present invention
1, D is benchmark round bar actual diameter, is that to deposit processor in before measuring be that subsequent treatment is prepared.
2, φ is the first optical detection apparatus optical axis and the second optical detection apparatus optical axis included angle, is that to deposit processor in before measuring be that subsequent treatment is prepared.
When 3, the first optical detection apparatus, the second optical detection apparatus gather respectively the benchmark round bar with round bar data image signal in opposite directions, benchmark round bar and the diametric visual field that all is positioned at the first optical measuring device, the second optical measuring device with the part of length direction of round bar in opposite directions, and the end face of benchmark round bar and the end face of the round bar close field of view center of trying one's best in opposite directions.Such as the shooting area among Fig. 3.
4, d represents benchmark round bar and the right alignment journal offset parameter of round bar in opposite directions among Fig. 1 and Fig. 2, and θ represents right alignment axis angle parameter, and X1 represents the basic circle rod axis, and X2 represents in opposite directions round bar axis, and O represents the in opposite directions center of circle of round bar end face.
Embodiment one: a kind of right alignment optical detecting method comprises
Step 1: the first optical detection apparatus, the second optical detection apparatus gather respectively benchmark round bar and round bar data image signal in opposite directions;
Step 2: processor receives the data image signal that the first optical detection apparatus gathers, obtain benchmark round bar and round bar axis the first angle theta 1 in opposite directions, benchmark round bar and the axis first offset component y1 of round bar in opposite directions, by the detection diameter value D1 of the first optical detection apparatus to the benchmark round bar, processor receives the data image signal that the second optical detection apparatus gathers, obtain benchmark round bar and round bar axis the second angle theta 2 in opposite directions, benchmark round bar and the axis second offset component y2 of round bar in opposite directions, by the detection diameter value D2 of the second optical detection apparatus to the benchmark round bar, calculate benchmark round bar and the right alignment journal offset parameter d of round bar in opposite directions, axis angle parameter θ.
Embodiment two: on embodiment one basis, described the first optical detection apparatus optical axis and the second optical detection apparatus optical axis included angle are φ, and described φ scope is: 0 °＜φ＜180 °, and be positioned at and the vertical same plane of benchmark round bar.
Embodiment three: on embodiment one or two bases, the benchmark round bar calculates detailed process with the right alignment of round bar in opposite directions and is in the described step 2:
Step 21: the first optical measuring device gathers benchmark round bar and round bar data image signal in opposite directions, and the data image signal that processor receives the output of the first optical measuring device obtains the benchmark round bar and detects diameter value D1, benchmark round bar and round bar axis angle θ 1 in opposite directions, benchmark round bar and the journal offset component y1 of round bar in opposite directions; Processor obtains the sampling rate of the first optical measuring device according to formula (1)
Wherein D is benchmark round bar actual diameter, and D1 is that the in opposite directions round bar that the first optical measuring device obtains detects diameter value;
Step 22: processor calculates the first offset component d1 according to formula (2):
Wherein y1 be in the data image signal that gathers of the first optical measuring device in opposite directions round bar with respect to the axle offset value of benchmark round bar.
Step 23: the second optical measuring device gathers benchmark round bar and round bar data image signal in opposite directions, and the data image signal that processor receives the output of the second optical measuring device obtains the benchmark round bar and detects diameter value D2, benchmark round bar and round bar axis angle θ 2 in opposite directions, benchmark round bar and the journal offset component y2 of round bar in opposite directions; Processor obtains the sampling rate of the second optical measuring device according to formula (3)
Wherein D2 is that the in opposite directions round bar that the second optical measuring device obtains detects diameter value;
Step 24: processor calculates the second offset component d2 according to formula (4):
Wherein y2 be in the data image signal that gathers of the second optical measuring device in opposite directions round bar with respect to the axle offset value of benchmark round bar.
Step 25: obtain in opposite directions round bar with respect to the right alignment journal offset parameter d of benchmark round bar according to formula (5),
The right alignment axis angle parameter θ of round bar relative datum round bar and θ 1, θ 2, φ satisfy formula (6) in opposite directions
Can obtain right alignment axis angle parameter θ value.
Embodiment four: on one of embodiment one to three basis, described
When φ=90 °, respectively according to formula (7) and (8)
（7）
Obtain benchmark round bar and in opposite directions right alignment journal offset parameter d and the axis angle parameter θ value of round bar.
Embodiment five: on one of embodiment one to four basis, described processor carries out at first successively when getting access to the data image signal of the first optical measuring device or the second optical measuring device that squelch is processed, image gradient is processed, edge detection process.
Embodiment six: on embodiment five bases, described the first optical detection apparatus or the second optical detection apparatus are the ICCD video cameras.
Embodiment seven: as shown in Figure 3, a kind of right alignment optical detection apparatus comprises the first optical detection apparatus, be used for to gather benchmark round bar and round bar data image signal in opposite directions; The second optical detection apparatus be used for to gather benchmark round bar and round bar data image signal in opposite directions, and described the first optical detection apparatus optical axis and the second optical detection apparatus optical axis included angle are φ, and are positioned at and the vertical same plane of benchmark round bar; Processor, be used for receiving the data image signal that the first optical detection apparatus gathers, obtain benchmark round bar and round bar axis the first angle theta 1 in opposite directions, benchmark round bar and the axis first offset component y1 of round bar in opposite directions, by the detection diameter value D1 of the first optical detection apparatus to the benchmark round bar, processor, and for the data image signal that receives the collection of the second optical detection apparatus, obtain benchmark round bar and round bar axis the second angle theta 2 in opposite directions, benchmark round bar and the axis second offset component y2 of round bar in opposite directions, by the detection diameter value D2 of the second optical detection apparatus to the benchmark round bar, calculate benchmark round bar and the right alignment journal offset parameter d of round bar in opposite directions, axis angle parameter θ.
Embodiment eight: on embodiment seven bases, described calculating benchmark round bar comprises with the right alignment concrete steps of round bar in opposite directions: step 31: the first optical measuring device gathers benchmark round bar and round bar data image signal in opposite directions, and the data image signal that processor receives the output of the first optical measuring device obtains the benchmark round bar and detects diameter value D1, benchmark round bar and round bar axis angle θ 1 in opposite directions, benchmark round bar and the journal offset component y1 of round bar in opposite directions; Processor obtains the sampling rate of the first optical measuring device according to formula (1)
Wherein D is benchmark round bar actual diameter, and D1 is that the in opposite directions round bar that the first optical measuring device obtains detects diameter value;
Step 32: processor calculates the first offset component d1 according to formula (2):
Wherein y1 be in the data image signal that gathers of the first optical measuring device in opposite directions round bar with respect to the axle offset value of benchmark round bar.
Step 33: the second optical measuring device gathers benchmark round bar and round bar data image signal in opposite directions, and the data image signal that processor receives the output of the second optical measuring device obtains the benchmark round bar and detects diameter value D2, benchmark round bar and round bar axis angle θ 2 in opposite directions, benchmark round bar and the journal offset component y2 of round bar in opposite directions; Processor obtains the sampling rate of the second optical measuring device according to formula (3)
（3）
Wherein D2 is that the in opposite directions round bar that the second optical measuring device obtains detects diameter value;
Step 34: processor calculates the second offset component d2 according to formula (4):
Wherein y2 be in the data image signal that gathers of the second optical measuring device in opposite directions round bar with respect to the axle offset value of benchmark round bar.
Step 35: obtain in opposite directions round bar with respect to the right alignment journal offset parameter d of benchmark round bar according to formula (5),
The right alignment axis angle parameter θ of round bar relative datum round bar and θ 1, θ 2, φ satisfy formula (6) in opposite directions
（6）
Can obtain right alignment axis angle parameter θ value.
Embodiment nine: on embodiment eight bases, described when φ=90 °, respectively according to formula (7) and (8)
（8）
Obtain benchmark round bar and in opposite directions right alignment journal offset parameter d and the axis angle parameter θ value of round bar.
Embodiment ten: on one of embodiment seven to nine basis, described processor carries out at first successively when getting access to the data image signal of the first optical measuring device or the second optical measuring device that squelch is processed, image gradient is processed, edge detection process.
Embodiment 11: on embodiment ten bases, described the first optical detection apparatus or the second optical detection apparatus are the ICCD video cameras.
The present invention is not limited to aforesaid embodiment.The present invention expands to any new feature or any new combination that discloses in this manual, and the arbitrary new method that discloses or step or any new combination of process.
Claims (10)
1. a right alignment optical detecting method is characterized in that comprising
Step 1: the first optical detection apparatus, the second optical detection apparatus gather respectively benchmark round bar and round bar data image signal in opposite directions;
Step 2: processor receives the data image signal that the first optical detection apparatus gathers, and obtains benchmark round bar and round bar axis the first angle theta 1 in opposite directions, benchmark round bar with the axis first offset component y1 of round bar in opposite directions, by the detection diameter value D1 of the first optical detection apparatus to the benchmark round bar; Processor receives the data image signal that the second optical detection apparatus gathers, obtain benchmark round bar and round bar axis the second angle theta 2 in opposite directions, benchmark round bar with the axis second offset component y2 of round bar in opposite directions, by the detection diameter value D2 of the second optical detection apparatus to the benchmark round bar, calculate benchmark round bar and in opposite directions right alignment journal offset parameter d, the axis angle parameter θ of round bar.
2. a kind of right alignment optical detecting method according to claim 1, it is characterized in that described the first optical detection apparatus optical axis and the second optical detection apparatus optical axis included angle are φ, described φ scope is: 0 °＜φ＜180 °, and be positioned at and the vertical same plane of benchmark round bar.
3. a kind of right alignment optical detecting method according to claim 1 is characterized in that described
The benchmark round bar calculates detailed process with the right alignment of round bar in opposite directions and is in the step 2:
Step 21: the first optical measuring device gathers benchmark round bar and round bar data image signal in opposite directions, and the data image signal that processor receives the output of the first optical measuring device obtains the benchmark round bar and detects diameter value D1, benchmark round bar and round bar axis angle θ 1 in opposite directions, benchmark round bar and the journal offset component y1 of round bar in opposite directions; Processor obtains the sampling rate of the first optical measuring device according to formula (1)
Wherein D is benchmark round bar actual diameter, and D1 is that the in opposite directions round bar that the first optical measuring device obtains detects diameter value;
Step 22: processor calculates the first offset component d1 according to formula (2):
Wherein y1 be in the data image signal that gathers of the first optical measuring device in opposite directions round bar with respect to the axle offset value of benchmark round bar;
Step 23: the second optical measuring device gathers benchmark round bar and round bar data image signal in opposite directions, and the data image signal that processor receives the output of the second optical measuring device obtains the benchmark round bar and detects diameter value D2, benchmark round bar and round bar axis angle θ 2 in opposite directions, benchmark round bar and the journal offset component y2 of round bar in opposite directions; Processor obtains the sampling rate of the second optical measuring device according to formula (3)
Wherein D2 is that the in opposite directions round bar that the second optical measuring device obtains detects diameter value;
Step 24: processor calculates the second offset component d2 according to formula (4):
Wherein y2 be in the data image signal that gathers of the second optical measuring device in opposite directions round bar with respect to the axle offset value of benchmark round bar;
Step 25: obtain in opposite directions round bar with respect to the right alignment journal offset parameter d of benchmark round bar according to formula (5),
The right alignment axis angle parameter θ of round bar relative datum round bar and θ 1, θ 2, φ satisfy formula (6) in opposite directions
Can obtain right alignment axis angle parameter θ value.
4. a kind of right alignment optical detecting method according to claim 3 is characterized in that described
When φ=90 °, respectively according to formula (7) and (8)
（8）
Obtain benchmark round bar and in opposite directions right alignment journal offset parameter d and the axis angle parameter θ value of round bar.
5. a kind of right alignment optical detecting method according to claim 1 is characterized in that described processor carries out at first successively when getting access to the data image signal of the first optical measuring device or the second optical measuring device that squelch is processed, image gradient is processed, edge detection process.
6. a kind of right alignment optical detecting method according to claim 5 is characterized in that described the first optical detection apparatus or the second optical detection apparatus are the ICCD video cameras.
7. a kind of right alignment optical detection apparatus according to claim 1 is characterized in that comprising
The first optical detection apparatus be used for to gather benchmark round bar and round bar data image signal in opposite directions;
The second optical detection apparatus be used for to gather benchmark round bar and round bar data image signal in opposite directions, and described the first optical detection apparatus optical axis and the second optical detection apparatus optical axis included angle are φ, and are positioned at and the vertical same plane of benchmark round bar;
Processor, be used for to receive the data image signal that the first optical detection apparatus gathers, obtain benchmark round bar and round bar axis the first angle theta 1 in opposite directions, benchmark round bar with the axis first offset component y1 of round bar in opposite directions, by the detection diameter value D1 of the first optical detection apparatus to the benchmark round bar; Processor is used for receiving the data image signal that the second optical detection apparatus gathers, obtain benchmark round bar and round bar axis the second angle theta 2 in opposite directions, benchmark round bar with the axis second offset component y2 of round bar in opposite directions, by the detection diameter value D2 of the second optical detection apparatus to the benchmark round bar, calculate benchmark round bar and in opposite directions right alignment journal offset parameter d, the axis angle parameter θ of round bar.
8. a kind of right alignment optical detection apparatus according to claim 7 is characterized in that described calculating benchmark round bar and the right alignment concrete steps of round bar in opposite directions comprise:
Step 31: the first optical measuring device gathers benchmark round bar and round bar data image signal in opposite directions, and the data image signal that processor receives the output of the first optical measuring device obtains the benchmark round bar and detects diameter value D1, benchmark round bar and round bar axis angle θ 1 in opposite directions, benchmark round bar and the journal offset component y1 of round bar in opposite directions; Processor obtains the sampling rate of the first optical measuring device according to formula (1)
Wherein D is benchmark round bar actual diameter, and D1 is that the in opposite directions round bar that the first optical measuring device obtains detects diameter value;
Step 32: processor calculates the first offset component d1 according to formula (2):
Wherein y1 be in the data image signal that gathers of the first optical measuring device in opposite directions round bar with respect to the axle offset value of benchmark round bar;
Step 33: the second optical measuring device gathers benchmark round bar and round bar data image signal in opposite directions, and the data image signal that processor receives the output of the second optical measuring device obtains the benchmark round bar and detects diameter value D2, benchmark round bar and round bar axis angle θ 2 in opposite directions, benchmark round bar and the journal offset component y2 of round bar in opposite directions; Processor obtains the sampling rate of the second optical measuring device according to formula (3)
Wherein D2 is that the in opposite directions round bar that the second optical measuring device obtains detects diameter value;
Step 34: processor calculates the second offset component d2 according to formula (4):
Wherein y2 be in the data image signal that gathers of the second optical measuring device in opposite directions round bar with respect to the axle offset value of benchmark round bar;
Step 35: obtain in opposite directions round bar with respect to the right alignment journal offset parameter d of benchmark round bar according to formula (5),
The right alignment axis angle parameter θ of round bar relative datum round bar and θ 1, θ 2, φ satisfy formula (6) in opposite directions
Can obtain right alignment axis angle parameter θ value.
9. a kind of right alignment optical detecting method according to claim 8 is characterized in that described
When φ=90 °, respectively according to formula (7) and (8)
Obtain benchmark round bar and in opposite directions right alignment journal offset parameter d and the axis angle parameter θ value of round bar.
10. a kind of right alignment optical detecting method according to claim 9, it is characterized in that described processor carries out at first successively when getting access to the data image signal of the first optical measuring device or the second optical measuring device that squelch is processed, image gradient is processed, edge detection process, described the first optical detection apparatus or the second optical detection apparatus are the ICCD video cameras.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108453564A (en) * | 2018-03-05 | 2018-08-28 | 上海理工大学 | Ball-screw in NC Machine Tools assembles the vision inspection apparatus and method of coaxiality error |
| CN109596074A (en) * | 2018-12-25 | 2019-04-09 | 芜湖哈特机器人产业技术研究院有限公司 | Coaxial bearing degree detection system |
| CN111899218A (en) * | 2020-06-28 | 2020-11-06 | 中国电子科技集团公司第四十四研究所 | Detector coaxiality detection system and method based on camera image processing |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2074320A (en) * | 1980-03-25 | 1981-10-28 | Owens Corning Fiberglass Corp | Method and Apparatus for positioning a Tool Relative to a Workpiece |
| US5904413A (en) * | 1996-06-12 | 1999-05-18 | Siemens Aktiengesellschaft | Method and apparatus for recognizing a skew angle of at least one optical fiber |
| CN202562451U (en) * | 2012-04-13 | 2012-11-28 | 无锡工艺职业技术学院 | Guide rail straightness measuring device |
-
2012
- 2012-12-10 CN CN201210524925.7A patent/CN102997870B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2074320A (en) * | 1980-03-25 | 1981-10-28 | Owens Corning Fiberglass Corp | Method and Apparatus for positioning a Tool Relative to a Workpiece |
| US5904413A (en) * | 1996-06-12 | 1999-05-18 | Siemens Aktiengesellschaft | Method and apparatus for recognizing a skew angle of at least one optical fiber |
| CN202562451U (en) * | 2012-04-13 | 2012-11-28 | 无锡工艺职业技术学院 | Guide rail straightness measuring device |
Non-Patent Citations (1)
| Title |
|---|
| 蔡善乐等: "基于CCD的滑动轴承套类零件同轴度误差实时检测系统", 《工具技术》 * |
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| CN108453564A (en) * | 2018-03-05 | 2018-08-28 | 上海理工大学 | Ball-screw in NC Machine Tools assembles the vision inspection apparatus and method of coaxiality error |
| CN109596074A (en) * | 2018-12-25 | 2019-04-09 | 芜湖哈特机器人产业技术研究院有限公司 | Coaxial bearing degree detection system |
| CN109596074B (en) * | 2018-12-25 | 2020-12-15 | 芜湖哈特机器人产业技术研究院有限公司 | Bearing coaxiality detection system |
| CN111899218A (en) * | 2020-06-28 | 2020-11-06 | 中国电子科技集团公司第四十四研究所 | Detector coaxiality detection system and method based on camera image processing |
| CN111899218B (en) * | 2020-06-28 | 2023-09-05 | 中国电子科技集团公司第四十四研究所 | Detector coaxiality detection system and method based on camera image processing |
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