CN103522127B - A kind of on-machine measurement device and method for the processing of swinging curved profile - Google Patents
A kind of on-machine measurement device and method for the processing of swinging curved profile Download PDFInfo
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- CN103522127B CN103522127B CN201310511868.3A CN201310511868A CN103522127B CN 103522127 B CN103522127 B CN 103522127B CN 201310511868 A CN201310511868 A CN 201310511868A CN 103522127 B CN103522127 B CN 103522127B
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- laser beam
- displacement sensor
- control module
- laser
- incident angle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/24—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves
- B23Q17/2452—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves for measuring features or for detecting a condition of machine parts, tools or workpieces
- B23Q17/2471—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves for measuring features or for detecting a condition of machine parts, tools or workpieces of workpieces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/20—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring workpiece characteristics, e.g. contour, dimension, hardness
Abstract
The present invention relates to a kind of on-machine measurement apparatus and method for the processing of swinging curved profile, device comprises displacement detecting unit, laser beam alignment unit and laser beam incident angle control module, it is characterized in that, described displacement detecting unit comprises laser displacement sensor and sensor controller; Described laser displacement sensor is arranged on described laser beam alignment unit, and is connected with described sensor controller; Described laser beam alignment cellular installation, on the control module of laser beam incident angle, and drives described laser displacement sensor to do the rotation of specified angle by described laser beam incident angle control module. Method is included in while measuring curved profile, and laser beam incident angle control module control laser beam rotates corresponding angle of revolution, makes laser beam carry out incident along workpiece profile normal direction. The present invention reduces workpiece installation and removal link on lathe, improves certainty of measurement, thereby improves working (machining) efficiency.
Description
Technical field
The present invention relates to machining and Technology of Precision Measurement field, particularly relate to one and process for swinging curved profileOn-machine measurement device and method.
Background technology
For some complex-shaped swinging curved profile part, as antenna house, if geometric senses such as its inside and outside contour and wall thicknessHave relatively high expectations, in order to reduce waste product as far as possible, conventionally take to reserve certain surplus after fine finishining, utilize three coordinate measuring machine,The precision instruments such as roundness measuring equipment carry out off-line measurement, then pass judgment on. Again workpiece is installed on lathe and is carried out if overproofProcessing, further to improve the machining accuracy of workpiece. Therefore, workpiece needs to carry out many between measurement station and reconditioning stationInferior installation and debugging, intermediate conversion links is many, not only troublesome poeration, inefficiency, and also workpiece repeats installation and can introduce manyThe position error of inferior installation, will further affect processing and the certainty of measurement of workpiece.
Summary of the invention
Technical problem to be solved by this invention be to provide a kind of on-machine measurement device for swinging curved profile processing andMethod, reduces workpiece installation and removal link on lathe, to improve certainty of measurement, thereby improves working (machining) efficiency.
The technical solution adopted for the present invention to solve the technical problems is: provide a kind of for swinging curved profile processingMachine measurement mechanism, comprises displacement detecting unit, laser beam alignment unit and laser beam incident angle control module, described displacement inspectionMeasurement unit comprises laser displacement sensor and sensor controller; Described laser displacement sensor is arranged on described laser beam alignmentOn unit, and be connected with described sensor controller; Described laser beam alignment cellular installation is controlled single at laser beam incident angleIn unit, and drive described laser displacement sensor to do the rotation of specified angle by described laser beam incident angle control module.
Described laser beam incident angle control module comprises substrate, stepper motor, motor mounting rack and coupling spindle; On described substrateDescribed motor mounting rack is installed, and described motor mounting rack is provided with deep groove ball bearing, and described stepper motor is arranged on motor peaceShelve, and coordinate with described deep groove ball bearing; The output shaft of described stepper motor is by one end of key and coupling spindleBe connected, the other end of described coupling spindle is connected with described laser beam alignment unit.
Described substrate is arranged on machine tool feed motion slide unit.
Described laser beam alignment unit comprise deflection adjust knob, for upper mounting plate, the pitching of laser displacement sensor are installedAdjust knob and lower installation board; Between described upper mounting plate and described lower installation board, steel ball and cylinder are installed, described upper installationBetween plate and lower installation board, connect spring and carry out pretension; Described deflection is adjusted knob and is used for driving described upper mounting plate around described circleCylinder deflection; Described pitching is adjusted knob and is used for driving described upper mounting plate to rotate around steel ball.
The technical solution adopted for the present invention to solve the technical problems is: also provide a kind of and process for swinging curved profileOn-machine measurement method, is characterized in that, uses above-mentioned on-machine measurement device, comprises the following steps:
(1) set up workpiece coordinate system, and calculate coordinate figure and the control of laser beam incident angle that laser displacement sensor will be measuredThe angle of revolution of unit processed;
(2) according to the coordinate figure calculating, control lathe working table movement, drive laser displacement sensor to move to workNear part;
(3), according to the angle of revolution calculating, send order-driven laser beam incident angle control module and drive laser displacementSensor rotates an angle, thereby makes the first profile normal direction of the laser beam alignment pieces of laser displacement sensor, protectsWhen card is measured, laser displacement sensor is measured by the first profile normal direction;
(4) carry out data acquisition, and show and store measuring the data that obtain;
(5) laser beam incident angle control module driving laser displacement transducer rotates an angle again, makes laser displacement sensingThe second profile normal direction of the laser beam alignment pieces of device, while ensureing to measure, laser beam is along the second profile normal direction of workpieceMeasure;
(6) workpiece is carried out to reconditioning;
(7), after reconditioning, use step (3)-step (5) to carry out again one-shot measurement;
(8) data of twice measurement before and after workpiece reconditioning are processed, can be obtained the actual reconditioning quality of workpiece.
Beneficial effect
Owing to having adopted above-mentioned technical scheme, the present invention compared with prior art, has following advantage and good effect:The present invention can install easily on lathe, has solved in the situation that not dismantling workpiece, carry out workpiece geometric sense in machine examinationSurvey, reduced and repeated to install the impact of the position error of bringing on certainty of measurement, greatly improved machining accuracy and the effect of workpieceRate has reduced processing cost simultaneously. The present invention has simultaneously adopted special laser beam alignment unit, so that the school of laser beamStandard, has also adopted special laser beam incident angle control module, laser beam and song to be measured that laser displacement sensor is sentThe normal direction of line profile is consistent, inside and outside contour wall thickness is detected more direct, and the degree of accuracy is higher.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of laser beam incident angle control module in the present invention;
Fig. 3 is the structural representation of laser beam alignment adjustment unit in the present invention;
Fig. 4 is the profile along A-A line in Fig. 3;
Fig. 5 is the schematic diagram that the present invention measures a kind of swinging curved profile.
Detailed description of the invention
Below in conjunction with specific embodiment, further set forth the present invention. Should be understood that these embodiment are only for illustrating the present inventionBe not used in and limit the scope of the invention. In addition should be understood that after having read the content of the present invention's instruction art technology peopleMember can make various changes or modifications the present invention, and these equivalent form of values fall within equally the application's appended claims and limitScope.
Embodiments of the present invention relate to a kind of on-machine measurement device of swinging curved profile processing, as shown in Figure 1, compriseDisplacement detecting unit, laser beam alignment unit 2, laser beam incident angle control module 1 and software model.
As shown in Figure 2, laser beam incident angle control module 1 is by substrate 11, stepper motor 12, motor mounting rack 13, darkDitch ball bearing 14, key 15 and coupling spindle 16 form. Stepper motor 12 is arranged on motor mounting rack 13 by screw, andCoordinate with the deep groove ball bearing 14 on motor mounting rack 13, coupling spindle 16 is defeated by key 15 and stepper motor 12Shaft connects, and motor mounting rack 13 is installed on substrate 11 by screw.
As shown in Figure 3 and Figure 4, laser beam alignment unit 2 comprise deflection adjust knob 21, steel ball 22, spring 23, onKnob 26 is adjusted in installing plate 24, cylinder 25, pitching and lower installation board 27 forms. At upper mounting plate 24 and lower installation boardSteel ball 22 and cylinder 25 are installed between 27, between upper mounting plate 24 and lower installation board 27, are connected spring 23 and carry out pretension.
Displacement detecting unit is made up of laser displacement sensor 3 and sensor controller. Laser displacement sensor 3 adopts knownTechnology, generating laser by camera lens by red color visible laser directive testee surface, through the laser beam of object reflectionBy analogy and digital circuit processing, and by microprocessor analysis, calculate sensor and tested in the position of receiving elementDistance between object.
Laser displacement sensor 3 is arranged on the upper mounting plate 24 of laser beam alignment unit 2, and by high-frequency electrical cable withSensor controller is connected. Laser beam alignment unit 2 is arranged on the coupling spindle 16 of laser beam incident angle control module 1,And drive laser displacement sensor to do the rotation of specified angle by laser beam incident angle control module 1. On-machine measurement device passes throughSubstrate 11 is arranged on machine tool feed motion slide unit.
After on-machine measurement device installs on lathe, the laser beam of laser displacement sensor 3 is calibrated. Laser beam schoolAccurate unit 1 is adjusted knob 21 by deflection and is driven upper mounting plate around cylinder 25 deflections, and the adjustment of knob 26 is adjusted in pitchingDrive upper mounting plate to rotate around steel ball 22, make laser beam and axis of workpiece keep contour and vertical, realize the calibration of laser beam.
With cylindrical Ф 190mm, highly, for the antenna house of 300mm is example, measure along circumference bus, furtherly belowBright the present invention.
As shown in Figure 5, with cylindrical Ф 190mm, highly, for the antenna house of 300mm is example, measure along circumference bus,Bus spacing is 20mm, needs to measure 15 circumferences, and its measuring method comprises the following steps:
1) set up workpiece coordinate system, and according to the outline molded line of antenna house, the software module of on-machine measurement device calculatesX, Z coordinate figure and the normal vector of measurement point on 15 circumferences of antenna house outer mold surface, thus determine laser displacement sensorMeasure the angle of revolution w of X, Z-direction coordinate figure and the laser beam incident angle control module of each circumferencen。
2) according to the X, the Z-direction coordinate figure that calculate, control platen in XOZ plane motion, drive laser displacementSensor movement is near the Article 1 circumference bus of antenna house.
3) software module is according to the angle of revolution w calculatingn, send order-driven stepper motor, drive coupling spindle to rotate,Coupling spindle drives laser displacement sensor to rotate an angle, thereby makes laser displacement sensor laser beam aim at antenna house external formThe normal orientation of face Article 1 circumference, while ensureing to measure, laser displacement sensor is surveyed by antenna house profile normal directionAmount.
4) indexing mechanism of lathe, control antenna cover does gyration next bus position to this circumference, software moduleCan basis set the parameters such as counting of collection and frequency, start data acquisition. And show measuring the data that obtainAnd storage.
5) measure after a circumference, control platen in XOZ plane motion, drive laser displacement sensor motionTo next circumference of antenna house. Laser beam incident angle control module driving laser displacement transducer rotates an angle more simultaneouslyDegree wn, make the laser beam of laser displacement sensor aim at antenna house outer mold surface Article 2 circumference, laser beam edge while ensureing to measureAntenna house profile normal direction is measured. Bus is measured until 15 circumferences have all been surveyed so one by one.
6) operation reconditioning procedure, carries out reconditioning to 15 measured circumferences respectively.
7), after reconditioning, 15 circumferences with said method after to antenna house reconditioning are measured again.
8) by software module, the data of twice measurement before and after antenna house reconditioning are done to suitable processing, can obtain antenna houseActual reconditioning quality.
9) software module is evaluated actual reconditioning quality, if meet reconditioning requirement, finishes; If do not meet reconditioningRequirement, according to the deviation of actual reconditioning quality and theoretical reconditioning quality, generates digital control processing compensation program, again antenna house is enteredRow reconditioning, again measures, evaluates antenna house after reconditioning is complete, until reach reconditioning requirement, thereby realizes antenna housePrecision grinding.
Be not difficult to find, the present invention can install easily on lathe, has solved in the situation that not dismantling workpiece, carries out workpieceGeometric sense at machine testing, reduced and repeated to install the impact on certainty of measurement of the position error brought, greatly improved workpieceMachining accuracy and efficiency, reduced processing cost simultaneously. The present invention has simultaneously adopted special laser beam alignment unit, withBe convenient to the calibration of laser beam, also adopted special laser beam incident angle control module, laser displacement sensor is sentLaser beam is consistent with the normal direction of curved profile to be measured, inside and outside contour wall thickness is detected more direct, and the degree of accuracy is higher.
Claims (4)
1. for an on-machine measurement device for swinging curved profile processing, comprise displacement detecting unit, laser beam alignment unitWith laser beam incident angle control module, it is characterized in that, described displacement detecting unit comprises laser displacement sensor and biographySensor controller; Described laser displacement sensor is arranged on described laser beam alignment unit, and with described sensor controlDevice processed is connected; Described laser beam alignment cellular installation is on the control module of laser beam incident angle, and by described laser beamIncidence angle control module drives described laser displacement sensor to do the rotation of specified angle; Described laser beam alignment unit bagDrawing together deflection adjusts knob, adjusts knob and lower installation board for upper mounting plate, pitching that laser displacement sensor is installed;Between described upper mounting plate and described lower installation board, steel ball and cylinder are installed, between described upper mounting plate and lower installation boardConnect spring and carry out pretension; Described deflection is adjusted knob and is used for driving described upper mounting plate around described cylinder deflection; InstituteState pitching and adjust knob for driving described upper mounting plate to rotate around steel ball.
2. the on-machine measurement device for the processing of swinging curved profile according to claim 1, is characterized in that, described inLaser beam incident angle control module comprises substrate, stepper motor, motor mounting rack and coupling spindle; On described substrate, installHave described motor mounting rack, described motor mounting rack is provided with deep groove ball bearing, and described stepper motor is arranged on motor peaceShelve, and coordinate with described deep groove ball bearing; The output shaft of described stepper motor is by key and coupling spindleOne end is connected, and the other end of described coupling spindle is connected with described laser beam alignment unit.
3. the on-machine measurement device for the processing of swinging curved profile according to claim 2, is characterized in that, described inSubstrate is arranged on machine tool feed motion slide unit.
4. for an on-machine measurement method for swinging curved profile processing, it is characterized in that, use as in claim 1-3On-machine measurement device described in arbitrary claim, comprises the following steps:
(1) set up workpiece coordinate system, and calculate coordinate figure and the control of laser beam incident angle that laser displacement sensor will be measuredThe angle of revolution of unit;
(2) according to the coordinate figure calculating, control lathe working table movement, drive laser displacement sensor to move to workpieceNear;
(3), according to the angle of revolution calculating, send order-driven laser beam incident angle control module and drive laser displacement to passSensor rotates an angle, thereby makes the first profile normal direction of the laser beam alignment pieces of laser displacement sensor,While ensureing to measure, laser displacement sensor is measured by the first profile normal direction;
(4) carry out data acquisition, and show and store measuring the data that obtain;
(5) laser beam incident angle control module driving laser displacement transducer rotates an angle again, makes laser displacement sensorThe second profile normal direction of laser beam alignment pieces, while ensureing to measure, laser beam is along the second profile normal side of workpieceTo measuring;
(6) workpiece is carried out to reconditioning;
(7), after reconditioning, use step (3)-step (5) to carry out again one-shot measurement;
(8) data of twice measurement before and after workpiece reconditioning are processed, can be obtained the actual reconditioning quality of workpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310511868.3A CN103522127B (en) | 2013-10-24 | 2013-10-24 | A kind of on-machine measurement device and method for the processing of swinging curved profile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310511868.3A CN103522127B (en) | 2013-10-24 | 2013-10-24 | A kind of on-machine measurement device and method for the processing of swinging curved profile |
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| Publication Number | Publication Date |
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| CN103522127A CN103522127A (en) | 2014-01-22 |
| CN103522127B true CN103522127B (en) | 2016-05-04 |
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| CN201310511868.3A Expired - Fee Related CN103522127B (en) | 2013-10-24 | 2013-10-24 | A kind of on-machine measurement device and method for the processing of swinging curved profile |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104166212B (en) * | 2014-08-29 | 2016-04-20 | 成都科信达实业有限公司 | For the bus rotational structure of grating adjustment rack |
| CN107238352B (en) * | 2017-06-01 | 2019-07-09 | 南京航空航天大学 | A kind of revolution class formation characteristic part profile laser on-machine measurement apparatus and method based on numerically controlled lathe |
| CN108362225B (en) * | 2018-02-11 | 2019-12-20 | 中国科学院上海光学精密机械研究所 | Measuring device and measuring method for conical mirror cylindrical surface shape |
| CN109186523A (en) * | 2018-09-28 | 2019-01-11 | 艾圣特传感系统（武汉）有限公司 | A kind of angular transducer detection system |
| CN110553610A (en) * | 2019-07-22 | 2019-12-10 | 中国航空工业集团公司济南特种结构研究所 | Radar antenna cover electric thickness detection correction positioning table |
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| CN101936722A (en) * | 2010-08-31 | 2011-01-05 | 东华大学 | On-line measurement device and method for supporting precision grinding of antenna cover |
| CN102001024A (en) * | 2010-11-03 | 2011-04-06 | 天津大学 | Measuring method for in-site measurement of free-form curved surface based on machining machine tool |
| CN103111914A (en) * | 2013-01-23 | 2013-05-22 | 北京理工大学 | Laser displacement sensor installion and fine adjustment device |
| CN103223626A (en) * | 2013-03-19 | 2013-07-31 | 中信重工机械股份有限公司 | Method for detecting tooth alignment error of big gear wheel on line |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0419044A (en) * | 1990-05-11 | 1992-01-23 | Hitachi Seiko Ltd | Work rotation locating device |
| JP5255012B2 (en) * | 2010-04-02 | 2013-08-07 | 三菱重工業株式会社 | Calibration method of gear measuring device |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936722A (en) * | 2010-08-31 | 2011-01-05 | 东华大学 | On-line measurement device and method for supporting precision grinding of antenna cover |
| CN102001024A (en) * | 2010-11-03 | 2011-04-06 | 天津大学 | Measuring method for in-site measurement of free-form curved surface based on machining machine tool |
| CN103111914A (en) * | 2013-01-23 | 2013-05-22 | 北京理工大学 | Laser displacement sensor installion and fine adjustment device |
| CN103223626A (en) * | 2013-03-19 | 2013-07-31 | 中信重工机械股份有限公司 | Method for detecting tooth alignment error of big gear wheel on line |
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