CN103522127A - On-machine measuring device and method for rotary curve contour machining - Google Patents

On-machine measuring device and method for rotary curve contour machining Download PDF

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Publication number
CN103522127A
CN103522127A CN201310511868.3A CN201310511868A CN103522127A CN 103522127 A CN103522127 A CN 103522127A CN 201310511868 A CN201310511868 A CN 201310511868A CN 103522127 A CN103522127 A CN 103522127A
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China
Prior art keywords
laser
displacement sensor
incident angle
workpiece
control module
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Application number
CN201310511868.3A
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Chinese (zh)
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CN103522127B (en
Inventor
王庆霞
杨建国
李蓓智
毛雄忠
丁玲龙
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Donghua University
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Donghua University
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q17/00Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/24Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves
    • B23Q17/2452Arrangements 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
    • B23Q17/2471Arrangements 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q17/00Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/20Arrangements for observing, indicating or measuring on machine tools for indicating or measuring workpiece characteristics, e.g. contour, dimension, hardness

Abstract

The invention relates to an on-machine measuring device and method for rotary curve contour machining. The on-machine measuring device for rotary curve contour machining comprises a displacement detection unit, a laser beam calibration unit and a laser beam incident angle control unit. The on-machine measuring device for rotary curve contour machining is characterized in that the displacement detection unit comprises a laser displacement sensor and a sensor controller, the laser displacement sensor is installed on the laser beam calibration unit, and is connected with the sensor controller, the laser beam calibration unit is installed on the laser beam incident angle control unit, and the laser beam incident angle control unit drives the laser displacement sensor to rotate by an appointed angle. The on-machine measuring method for rotary curve contour machining comprises the step that when a curve contour is measured, the laser beam incident angle control unit controls a laser beam to rotate by the corresponding rotation angle so that the laser beam can carry out incidence in the normal direction of the contour of a workpiece. According to the on-machine measuring device and method for rotary curve contour machining, the number of steps of installation and disassembly of the workpiece on a machine tool is reduced, measuring accuracy is improved, and thus processing efficiency is improved.

Description

A kind of on-machine measurement device and method for the processing of swinging curved profile
Technical field
The present invention relates to machining and Technology of Precision Measurement field, particularly relate to a kind of on-machine measurement device and method for the processing of swinging curved profile.
Background technology
For some complex-shaped swinging curved profile part, as antenna house, if the geometric senses such as its inside and outside contour and wall thickness are had 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.If overproof, again workpiece be installed on lathe and processed, further to improve the machining accuracy of workpiece.Therefore, workpiece needs to carry out repeatedly installation and debugging between measurement station and reconditioning station, and intermediate conversion links is many, troublesome poeration not only, inefficiency, and workpiece repeats installation and can introduce repeatedly the position error of installing, and will further affect processing and the certainty of measurement of workpiece.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of on-machine measurement device and method for the processing of swinging curved profile, 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: a kind of on-machine measurement device for the processing of swinging curved profile is provided, comprise displacement detecting unit, laser beam alignment unit and laser beam incident angle control module, 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.
Described laser beam incident angle control module comprises substrate, stepper motor, motor mounting rack and coupling spindle; Described motor mounting rack is installed on described substrate, and described motor mounting rack is provided with deep groove ball bearing, and described stepper motor is arranged on motor mounting rack, and coordinates with described deep groove ball bearing; The output shaft of described stepper motor is connected with one end of coupling spindle by key, and 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 comprises deflection adjustment knob, for upper mounting plate, the pitching of laser displacement sensor is installed, adjusts knob and lower installation board; Between described upper mounting plate and described lower installation board, steel ball and cylinder are installed, between described upper mounting plate and lower installation board, are connected spring and carry out pretension; Described deflection is adjusted knob and is used for driving described upper mounting plate around described cylinder 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: a kind of on-machine measurement method for the processing of swinging curved profile is also provided, it is characterized in that, use above-mentioned on-machine measurement device, comprise the following steps:
(1) set up workpiece coordinate system, and calculate coordinate figure that laser displacement sensor will measure and the angle of revolution of laser beam incident angle control module;
(2) according to the coordinate figure calculating, control lathe working table movement, drive laser displacement sensor to move near workpiece;
(3) according to the angle of revolution calculating, sending order-driven laser beam incident angle control module drives laser displacement sensor to rotate an angle, thereby make the first profile normal direction of the laser beam alignment pieces of laser displacement sensor, while guaranteeing to measure, laser displacement sensor is measured by the first profile normal direction;
(4) carry out data acquisition, and the resulting data of measurement are shown and stored;
(5) laser beam incident angle control module driving laser displacement transducer rotates an angle again, makes the second profile normal direction of the laser beam alignment pieces of laser displacement sensor, and while guaranteeing to measure, laser beam is measured along the second profile normal direction of workpiece;
(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, there is following advantage and good effect: the present invention can install easily on lathe, solved in the situation that not dismantling workpiece, carry out workpiece geometric sense at machine testing, reduced and repeated to install the impact on certainty of measurement of the position error bring, greatly improved machining accuracy and the efficiency of workpiece, reduced processing cost simultaneously.The present invention has simultaneously adopted special-purpose laser beam alignment unit, so that the calibration of laser beam, also adopted special-purpose laser beam incident angle control module, the laser beam that laser displacement sensor is sent is consistent with the normal direction of curved profile to be measured, inside and outside contour wall thickness is detected more direct, the degree of accuracy is higher.
Accompanying drawing explanation
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.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment are only not used in and limit the scope of the invention for the present invention is described.In addition should be understood that those skilled in the art can make various changes or modifications the present invention after having read the content of the present invention's instruction, these equivalent form of values fall within the application's appended claims limited range equally.
Embodiments of the present invention relate to a kind of on-machine measurement device of swinging curved profile processing, as shown in Figure 1, comprise displacement 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 comprised of substrate 11, stepper motor 12, motor mounting rack 13, deep groove ball bearing 14, key 15 and coupling spindle 16.Stepper motor 12 is arranged on motor mounting rack 13 by screw, and coordinates with the deep groove ball bearing 14 on motor mounting rack 13, and coupling spindle 16 is connected with the output shaft of stepper motor 12 by key 15, 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 comprises that knob 21, steel ball 22, spring 23, upper mounting plate 24, cylinder 25 are adjusted in deflection, knob 26 is adjusted in pitching and lower installation board 27 forms.Steel ball 22 and cylinder 25 are installed between upper mounting plate 24 and lower installation board 27, between upper mounting plate 24 and lower installation board 27, are connected spring 23 and carry out pretension.
Displacement detecting unit is comprised of laser displacement sensor 3 and sensor controller.Laser displacement sensor 3 adopts known technology, be that generating laser is surperficial by red color visible laser directive testee by camera lens, laser beam through object reflection is processed by analogy and digital circuit in the position of receiving element, and by microprocessor analysis, calculate the distance between sensor and testee.
Laser displacement sensor 3 is arranged on the upper mounting plate 24 of laser beam alignment unit 2, and is connected with sensor controller by high-frequency electrical cable.Laser beam alignment unit 2 is arranged on the coupling spindle 16 of laser beam incident angle control module 1, and drives laser displacement sensor to do the rotation of specified angle by laser beam incident angle control module 1.On-machine measurement device is arranged on machine tool feed motion slide unit by substrate 11.
After on-machine measurement device installs on lathe, the laser beam of laser displacement sensor 3 is calibrated.Laser beam alignment unit 1 is adjusted knob 21 by deflection and is driven upper mounting plate around cylinder 25 deflections, and the adjustment that knob 26 is adjusted in pitching drives upper mounting plate around steel ball 22 rotations, makes laser beam and axis of workpiece keep contour and vertical, realizes the calibration of laser beam.
With cylindrical Ф 190mm, highly for the antenna house of 300mm is example, along circumference bus, measure below, further illustrate the present invention.
As shown in Figure 5, with cylindrical Ф 190mm, highly for the antenna house of 300mm is example, along circumference bus, measure, 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 calculates X, Z coordinate figure and the normal vector of measurement point on 15 circumferences of antenna house outer mold surface, thereby definite laser displacement sensor is measured the angle of revolution w of X, Z-direction coordinate figure and the laser beam incident angle control module of each circumference n.
2) according to the X, the Z-direction coordinate figure that calculate, control platen in XOZ plane motion, drive laser displacement sensor to move near article one circumference bus of antenna house.
3) software module is according to the angle of revolution w calculating nsend order-driven stepper motor, drive coupling spindle rotates, coupling spindle drives laser displacement sensor to rotate an angle, thereby make laser displacement sensor laser beam aim at the normal orientation of antenna house outer mold surface article one circumference, while guaranteeing to measure, laser displacement sensor is measured by antenna house profile normal direction.
4) indexing mechanism of lathe, control antenna cover is done gyration to next bus position of this circumference, and software module can basis set the parameters such as counting of collection and frequency, starts data acquisition.And the resulting data of measurement are shown and stored.
5) measure after a circumference, control platen in XOZ plane motion, drive laser displacement sensor to move to next circumference of antenna house.Laser beam incident angle control module driving laser displacement transducer rotates an angle w more simultaneously n, make the laser beam of laser displacement sensor aim at antenna house outer mold surface second circumference, while guaranteeing to measure, laser beam is measured along antenna house profile normal direction.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 the actual reconditioning quality of antenna house.
9) software module is evaluated actual reconditioning quality, if meet reconditioning requirement, finishes; If do not meet reconditioning requirement, according to the deviation of actual reconditioning quality and theoretical reconditioning quality, generate digital control processing compensation program, again antenna house is carried out to reconditioning, after reconditioning is complete, again antenna house is measured, evaluated, until reach reconditioning requirement, thus realize the precision grinding of antenna house.
Be not difficult to find, the present invention can install easily on lathe, solved in the situation that not dismantling workpiece, carry out workpiece geometric sense at machine testing, reduced and repeated to install the impact on certainty of measurement of the position error bring, the machining accuracy and the efficiency that have greatly improved workpiece have reduced processing cost simultaneously.The present invention has simultaneously adopted special-purpose laser beam alignment unit, so that the calibration of laser beam, also adopted special-purpose laser beam incident angle control module, the laser beam that laser displacement sensor is sent is consistent with the normal direction of curved profile to be measured, inside and outside contour wall thickness is detected more direct, the degree of accuracy is higher.

Claims (5)

1. for an on-machine measurement device for swinging curved profile processing, comprise 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.
2. the on-machine measurement device for the processing of swinging curved profile according to claim 1, is characterized in that, described laser beam incident angle control module comprises substrate, stepper motor, motor mounting rack and coupling spindle; Described motor mounting rack is installed on described substrate, and described motor mounting rack is provided with deep groove ball bearing, and described stepper motor is arranged on motor mounting rack, and coordinates with described deep groove ball bearing; The output shaft of described stepper motor is connected with one end of coupling spindle by key, 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 substrate is arranged on machine tool feed motion slide unit.
4. the on-machine measurement device for swinging curved profile processing according to claim 1, it is characterized in that, described laser beam alignment unit comprises deflection adjustment knob, for upper mounting plate, the pitching of laser displacement sensor is installed, adjusts knob and lower installation board; Between described upper mounting plate and described lower installation board, steel ball and cylinder are installed, between described upper mounting plate and lower installation board, are connected spring and carry out pretension; Described deflection is adjusted knob and is used for driving described upper mounting plate around described cylinder deflection; Described pitching is adjusted knob and is used for driving described upper mounting plate to rotate around steel ball.
5. for an on-machine measurement method for swinging curved profile processing, it is characterized in that, use the on-machine measurement device as described in arbitrary claim in claim 1-5, comprise the following steps:
(1) set up workpiece coordinate system, and calculate coordinate figure that laser displacement sensor will measure and the angle of revolution of laser beam incident angle control module;
(2) according to the coordinate figure calculating, control lathe working table movement, drive laser displacement sensor to move near workpiece;
(3) according to the angle of revolution calculating, sending order-driven laser beam incident angle control module drives laser displacement sensor to rotate an angle, thereby make the first profile normal direction of the laser beam alignment pieces of laser displacement sensor, while guaranteeing to measure, laser displacement sensor is measured by the first profile normal direction;
(4) carry out data acquisition, and the resulting data of measurement are shown and stored;
(5) laser beam incident angle control module driving laser displacement transducer rotates an angle again, makes the second profile normal direction of the laser beam alignment pieces of laser displacement sensor, and while guaranteeing to measure, laser beam is measured along the second profile normal direction of workpiece;
(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.
CN201310511868.3A 2013-10-24 2013-10-24 A kind of on-machine measurement device and method for the processing of swinging curved profile Expired - Fee Related CN103522127B (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104166212A (en) * 2014-08-29 2014-11-26 成都科信达实业有限公司 Busbar rotating structure for optical grating adjusting rack
CN107238352A (en) * 2017-06-01 2017-10-10 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
CN108362225A (en) * 2018-02-11 2018-08-03 中国科学院上海光学精密机械研究所 The measuring device and measuring method of conical mirror cylinder mirror surface-shaped
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

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0419044A (en) * 1990-05-11 1992-01-23 Hitachi Seiko Ltd Work rotation locating device
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
US20130054172A1 (en) * 2010-04-02 2013-02-28 Mitsubishi Heavy Industries, Ltd. Method of calibrating gear measuring device
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

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0419044A (en) * 1990-05-11 1992-01-23 Hitachi Seiko Ltd Work rotation locating device
US20130054172A1 (en) * 2010-04-02 2013-02-28 Mitsubishi Heavy Industries, Ltd. Method of calibrating gear measuring device
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

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104166212A (en) * 2014-08-29 2014-11-26 成都科信达实业有限公司 Busbar rotating structure for optical grating adjusting rack
CN107238352A (en) * 2017-06-01 2017-10-10 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
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
CN108362225A (en) * 2018-02-11 2018-08-03 中国科学院上海光学精密机械研究所 The measuring device and measuring method of conical mirror cylinder mirror surface-shaped
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
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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