CN103223626A - Method for detecting tooth alignment error of big gear wheel on line - Google Patents
Method for detecting tooth alignment error of big gear wheel on line Download PDFInfo
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- CN103223626A CN103223626A CN2013100866508A CN201310086650A CN103223626A CN 103223626 A CN103223626 A CN 103223626A CN 2013100866508 A CN2013100866508 A CN 2013100866508A CN 201310086650 A CN201310086650 A CN 201310086650A CN 103223626 A CN103223626 A CN 103223626A
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- gear wheel
- alignment error
- tooth alignment
- laser tracker
- online detection
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Abstract
The invention discloses a method for detecting a tooth alignment error of a big gear wheel on line and relates to the machining field. According to the method, Spatial Analyzer software is matched with a laser tracker (4), so that a big gear wheel (2) can detect the tooth alignment error on an operating platform of a machine tool directly, a machining parameter of the machine tool can be further adjusted according to a detection result simultaneously, and accordingly, the high-precision big gear wheel can be machined, and the problem that the detecting tooth alignment error of the big gear wheel with a diameter above 5000 mm cannot be detected on line at present is effectively solved. The method for detecting the tooth alignment error of the big gear wheel on line has the characteristics of simple operation, high measurement efficiency and the like and is particularly suitable for detecting the big gear wheel with the diameter over 5000 mm on line.
Description
[technical field]
The present invention relates to field of machining, relate in particular to a kind of detection method, be specifically related to a kind of method of online detection gear wheel tooth alignment error the Gear Processing precision.
[background technology]
Known, gear is widely used in Aero-Space, naval vessel, automobile, big-and-middle-sized industrial equipment, precision machine tool and the miniature instrument instrument as driving member, and the height of transmission accuracy depends primarily on the height of the precision of gear own in gear drive, in order to guarantee the precision of gear, in process, often need gear is constantly detected, the gear that processes with assurance meets design requirement, and generally takes the gear detector to detect at present at the detection of Gear Processing precision; Or detect by the detection system that gear grinding machines carry; Or modes such as gear detects are realized the accuracy of gear is detected by measurer, but maximum at present gear detector can detect the gear of diameter below 3000mm, the gear of diameter below 5000mm can be processed and detect to maximum gear grinding machines, but for diameter when 5000mm or the gear wheel more than the 5000mm detect, present accuracy checking method is very limited, tooth pitch and transverse tooth thickness project that can only detection of gear but can't be measured for very important tooth alignment error.
[summary of the invention]
In order to overcome the deficiency of above-mentioned technology, the invention provides a kind of method of online detection gear wheel tooth alignment error, the present invention utilizes SpatialAnalyzer software to cooperate laser tracker, just can realize allowing gear wheel on the operation of machine tool platform, directly tooth alignment error be detected, further adjust the machined parameters of lathe simultaneously according to the result who detects, thereby process high-precision gear wheel, the present invention has simple to operate, measure characteristics such as efficient height, be specially adapted to the online detection of diameter greater than the gear wheel tooth alignment error more than the 5000mm.
For realizing aforesaid goal of the invention, the present invention adopts technical scheme as described below:
A kind of method of online detection gear wheel tooth alignment error, described detection method cooperates laser tracker to realize detection to the gear wheel tooth alignment error by the SpatialAnalyzer software in the computer, and concrete detection method comprises the steps:
The first step, at first laser tracker is placed on a side of gear wheel, open laser tracker then and carry out preheating, the laser for the treatment of to utilize after preheating is finished laser tracker to send is gathered the point on gear wheel transverse plane and the outside circle, further pass through the center of circle and the transverse plane of least square fitting outside circle, this moment, the transverse plane normal direction by the match center of circle was exactly the datum axis of gear wheel, and the coordinate system of laser tracker is based upon on the datum axis, and the tooth alignment error to gear wheel detects then;
Second step, tooth alignment error to gear wheel detects, utilizing SpatialAnalyzer software in the computer to set up one is axis with the datum axis, reference diameter with gear wheel is the cylindrical reference face of diameter, further allow laser tracker at the intersection place of the flank of tooth of any one gear teeth of gear wheel and the plane of reference along one group of point of movement locus dynamic scan, utilize SpatialAnalyzer software will by dynamic scan to one group of point teeth directional equation of doing temperature-compensating and bringing theoretical gear wheel into calculate the tooth alignment error of the measured gear teeth of gear wheel, utilize mapping software to draw out the tooth alignment error curve of gear wheel reality then, promptly finished once detection this moment the gear wheel tooth alignment error.
The method of described online detection gear wheel tooth alignment error, the laser that described laser tracker sends receives by the target ball, and described target ball moves at the flank of tooth upper edge of gear wheel movement locus.
The method of described online detection gear wheel tooth alignment error, described laser tracker be arranged on support above.
The method of described online detection gear wheel tooth alignment error, described laser tracker is communicated with computer by data wire.
The LT3 type that the method for described online detection gear wheel tooth alignment error, described laser tracker select for use U.S. API company to produce.
The method of described online detection gear wheel tooth alignment error, be 15 minutes the preheating time of described laser tracker.
The method of described online detection gear wheel tooth alignment error, described SpatialAnalyzer software are selected the exploitation of U.S. NRK company for use.
The method of described online detection gear wheel tooth alignment error, described mapping software is Auto CAD.
Adopt aforesaid technical scheme, the present invention has superiority as described below:
The method of a kind of online detection gear wheel tooth alignment error of the present invention, the present invention utilizes SpatialAnalyzer software to cooperate laser tracker, just can realize allowing gear wheel on the operation of machine tool platform, directly tooth alignment error be detected, further adjust the machined parameters of lathe simultaneously according to the result who detects, thereby process high-precision gear wheel, efficiently solving at present can't be to the difficult problem of the online detection tooth alignment error of the gear wheel of diameter more than 5000mm, the present invention has simple to operate, measure characteristics such as efficient height, be specially adapted to the online detection of diameter greater than the gear wheel tooth alignment error more than the 5000mm.
[description of drawings]
Fig. 1 is a measuring process schematic diagram of the present invention;
Fig. 2 measures the schematic diagram of gear wheel tooth alignment error for the present invention;
Among the figure: 1, target ball; 2, gear wheel; 3, laser; 4, laser tracker; 5, support; 6, data wire; 7, computer; 8, the plane of reference; 9, movement locus.
[specific embodiment]
Can explain the present invention in more detail by the following examples, the present invention is not limited to the following examples;
The method of 1～2 described a kind of online detection gear wheel tooth alignment error in conjunction with the accompanying drawings, the detection that described detection method realizes gear wheel 2 tooth alignment errors by the LT3 type laser tracker 4 of the SpatialAnalyzer software cooperation U.S. API company production of U.S. NRK company exploitation in the computer 7, described laser tracker 4 is communicated with computers 7 by data wire 6; Or laser tracker 4 is communicated with computer 7 by wireless transmission, and concrete detection method comprises the steps:
The first step, at first laser tracker 4 is arranged on the top of support 5 and laser tracker 4 is placed on a side of gear wheel 2, open laser tracker 4 then and carried out preheating 15 minutes, the point that the laser 3 for the treatment of to utilize after preheating is finished laser tracker 4 to send is gathered on gear wheel 2 transverse planes and the outside circle, further pass through the center of circle and the transverse plane of least square fitting outside circle, " need to prove that least square method claims least squares method again; be a kind of mathematical optimization technology; its quadratic sum by minimum error is sought the optimal function coupling of data; utilize least square method can try to achieve unknown data easily; and make the quadratic sum of error between data that these are tried to achieve and the real data for minimum; least square method also can be used for the curve match, and some other optimization problem also can be expressed with least square method by minimization of energy or maximization entropy; " this moment the transverse plane normal direction by the match center of circle be exactly the datum axis of gear wheel 2, the coordinate system of laser tracker 4 is based upon on the datum axis, the tooth alignment error to gear wheel 2 detects then;
Second step, tooth alignment error to gear wheel 2 detects, utilizing SpatialAnalyzer software in the computer 7 to set up one is axis with the datum axis, reference diameter with gear wheel 2 is the cylindrical reference face 8 of diameter, further allow laser tracker 4 at the intersection place of the flank of tooth of gear wheel 2 any one gear teeth and the plane of reference 8 along one group of point of movement locus 9 dynamic scans, or the laser 3 that laser tracker 4 is sent receives by target ball 1, described target ball 1 moves and one group of point of dynamic scan at the flank of tooth upper edge of gear wheel 2 movement locus 9, utilize SpatialAnalyzer software will by dynamic scan to one group of point teeth directional equation of doing temperature-compensating and bringing theoretical gear wheel 2 into calculate the tooth alignment error of the gear wheel 2 measured gear teeth, utilize Auto CAD to draw out the tooth alignment error curve of gear wheel 2 reality then, promptly finished once detection this moment gear wheel 2 tooth alignment errors.
The method of online detection gear wheel tooth alignment error of the present invention, on the basis of the first step, can onlinely finish detection equally to gear wheel profile error and gearing line error, concrete grammar detects for the profile error that the step of second in the method for online detection gear wheel tooth alignment error of the present invention is replaced with gear wheel 2, utilizing SpatialAnalyzer software in the computer 7 to set up one is axis with the datum axis, it is parallel and cross the plane of reference at facewidth center to set up transverse plane with gear wheel 2 simultaneously, further allow laser tracker 4 at the intersection place of the flank of tooth of gear wheel 2 any one gear teeth and the plane of reference along one group of point of movement locus dynamic scan, utilize SpatialAnalyzer software will by dynamic scan to one group of point profile of tooth equation of doing temperature-compensating and bringing theoretical gear wheel 2 into calculate the profile error of the gear wheel 2 measured gear teeth, utilize mapping software to draw out the profile error curve of gear wheel 2 reality then, promptly finished once detection this moment the gear wheel profile error; Or the gearing line error that the step of second in the method for online detection gear wheel tooth alignment error of the present invention is replaced with gear wheel 2 detects, utilizing SpatialAnalyzer software in the computer 7 to set up one is axis with the datum axis, with gear wheel 2 base circle diameter (BCD)s is the cylindrical reference face A of diameter, set up a plane of reference B tangent simultaneously with cylindrical reference face A, further allow laser tracker 4 at the intersection place of the flank of tooth of gear wheel 2 any one gear teeth and plane of reference B along one group of point of movement locus dynamic scan, utilize SpatialAnalyzer software will by dynamic scan to one group of point path of contact equation of doing temperature-compensating and bringing theoretical gear wheel 2 into calculate the gearing line error of the gear wheel 2 measured gear teeth, utilize mapping software to draw out the gearing line error curve of gear wheel 2 reality then, promptly finished once detection this moment gear wheel 2 gearing line error.
Among the present invention at the online description of finishing the detection method of gear wheel 2 profile errors and gearing line error; it is not the emphasis that the present invention protects; but by on the basis of the first step of the present invention, finishing the online detection of finishing gear wheel 2 profile errors and gearing line error equally; the applicant has made separate case " division " application in order to make protection domain of the present invention more concrete at the detection method of gear wheel 2 profile errors and gearing line error.
For better protection the present invention, the applicant has proposed to divide an application,
Part not in the detailed description of the invention is a prior art.
The embodiment that selects for use in this article in order to disclose purpose of the present invention currently thinks to suit, and still, will be appreciated that the present invention is intended to comprise that all belong to all changes and the improvement of the embodiment in this design and the invention scope.
Claims (8)
1. the method for an online detection gear wheel tooth alignment error, it is characterized in that: described detection method cooperates laser tracker (4) to realize detection to gear wheel (2) tooth alignment error by the SpatialAnalyzer software in the computer (7), and concrete detection method comprises the steps:
The first step, at first laser tracker (4) is placed on a side of gear wheel (2), open laser tracker (4) then and carry out preheating, the laser (3) for the treatment of to utilize after preheating is finished laser tracker (4) to send is gathered the point on gear wheel (2) transverse plane and the outside circle, further pass through the center of circle and the transverse plane of least square fitting outside circle, this moment, the transverse plane normal direction by the match center of circle was exactly the datum axis of gear wheel (2), the coordinate system of laser tracker (4) is based upon on the datum axis, and the tooth alignment error to gear wheel (2) detects then;
Second step, tooth alignment error to gear wheel (2) detects, utilizing SpatialAnalyzer software in the computer (7) to set up one is axis with the datum axis, reference diameter with gear wheel (2) is the cylindrical reference face (8) of diameter, further allow laser tracker (4) at the intersection place of the flank of tooth of any one gear teeth of gear wheel (2) and the plane of reference (8) along one group of point of movement locus (9) dynamic scan, utilize SpatialAnalyzer software will by dynamic scan to one group of point teeth directional equation of doing temperature-compensating and bringing theoretical gear wheel (2) into calculate the tooth alignment error of the measured gear teeth of gear wheel (2), utilize the mapping software to draw out the actual tooth alignment error curve of gear wheel (2) then, promptly finished once detection this moment gear wheel (2) tooth alignment error.
2. the method for online detection gear wheel tooth alignment error according to claim 1, it is characterized in that: the laser (3) that described laser tracker (4) sends receives by target ball (1), and described target ball (1) moves at the flank of tooth upper edge of gear wheel (2) movement locus (9).
3. the method for online detection gear wheel tooth alignment error according to claim 1 is characterized in that: described laser tracker (4) be arranged on support (5) above.
4. the method for online detection gear wheel tooth alignment error according to claim 1 is characterized in that: described laser tracker (4) is communicated with computer (7) by data wire (6).
5. the method for online detection gear wheel tooth alignment error according to claim 1 is characterized in that: the LT3 type that described laser tracker (4) selects for use U.S. API company to produce.
6. the method for online detection gear wheel tooth alignment error according to claim 1 is characterized in that: be 15 minutes the preheating time of described laser tracker (4).
7. the method for online detection gear wheel tooth alignment error according to claim 1 is characterized in that: described SpatialAnalyzer software selects for use U.S. NRK company to develop.
8. the method for online detection gear wheel tooth alignment error according to claim 1 is characterized in that: described mapping software is Auto CAD.
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| CN201310086650.8A CN103223626B (en) | 2013-03-19 | 2013-03-19 | A kind of method of on-line checking gear wheel tooth alignment error |
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| CN201310086650.8A CN103223626B (en) | 2013-03-19 | 2013-03-19 | A kind of method of on-line checking gear wheel tooth alignment error |
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Cited By (4)
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| CN103522127A (en) * | 2013-10-24 | 2014-01-22 | 东华大学 | On-machine measuring device and method for rotary curve contour machining |
| CN104148745A (en) * | 2014-08-12 | 2014-11-19 | 西华大学 | Online detection and correction machining method for enveloping worm tooth surface |
| CN104759943A (en) * | 2015-03-30 | 2015-07-08 | 北京工业大学 | Device and method for detecting gear shape and performance |
| CN109781018A (en) * | 2019-01-14 | 2019-05-21 | 北方民族大学 | A method of super-huge spur gear tooth pitch is measured using laser tracker |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109781018A (en) * | 2019-01-14 | 2019-05-21 | 北方民族大学 | A method of super-huge spur gear tooth pitch is measured using laser tracker |
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| CN103223626B (en) | 2016-08-03 |
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