CN209524877U - A kind of on-line measurement system of numerically-controlled machine tool dynamic accuracy - Google Patents
A kind of on-line measurement system of numerically-controlled machine tool dynamic accuracy Download PDFInfo
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- CN209524877U CN209524877U CN201920277816.7U CN201920277816U CN209524877U CN 209524877 U CN209524877 U CN 209524877U CN 201920277816 U CN201920277816 U CN 201920277816U CN 209524877 U CN209524877 U CN 209524877U
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- controlled machine
- measurement system
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- Length Measuring Devices By Optical Means (AREA)
Abstract
A kind of on-line measurement system of numerically-controlled machine tool dynamic accuracy disclosed by the utility model, including laser interferometer, the laser interferometer includes laser transmitting-receiving head group and target reflecting mirror, the laser transmitting-receiving head group is set on the workbench of numerically-controlled machine tool, the target reflecting mirror is set on the main shaft of numerically-controlled machine tool, and the laser transmitting-receiving head group is also connected with data collecting plate card, data acquisition device and processor in turn.The on-line measurement system structure of the numerically-controlled machine tool dynamic accuracy of the utility model is simple and convenient to operate, it can be measured the dynamic error for being clearly distinguishable from static geometric error, such as runout error, while analysis is facilitated by dynamic measuring data and finds the error source of numerically-controlled machine tool.
Description
Technical field
The utility model belongs to field of measuring technique, and in particular to a kind of on-line measurement system of numerically-controlled machine tool dynamic accuracy
System.
Background technique
The detection of country's large-size numerical control machine geometric accuracy at present generallys use offline inspection measurement static accuracy, with biography
System method carries out data statistic analysis, and detection accuracy is low, low efficiency, laborious time-consuming.And practical numerically-controlled machine tool dynamic accuracy is
In speed, acceleration, the dynamic comprehensive reflection under a series of influence factor such as vibration has very big difference with static accuracy.
Common dynamic accuracy measurement method may be generally divided into two major classes, and one kind is that setting measuring basis is compared, and another kind of is nothing
The measurement method of benchmark.But to there is measuring device in existing measurement method structure is complicated, measurement process step is complicated, in addition
The problem for making measuring result error big because of the errors of principles brought by measuring basis.The especially reality of dynamic accuracy and lathe
Operating condition is directly related, it is therefore desirable to which real-time measurement, dynamic accuracy, specificity analysis is fused together, and carries out on-line measurement.
Utility model content
The purpose of this utility model is to provide a kind of on-line measurement systems of numerically-controlled machine tool dynamic accuracy, solve existing
Measuring device measuring result error it is larger, the problem of measurement process step complexity.
The technical scheme adopted by the utility model is a kind of on-line measurement system of numerically-controlled machine tool dynamic accuracy, including
Laser interferometer, the laser interferometer include laser transmitting-receiving head group and target reflecting mirror, and the laser transmitting-receiving head group is set to
On the workbench of numerically-controlled machine tool, the target reflecting mirror is set on the main shaft of numerically-controlled machine tool, the laser transmitting-receiving head group also according to
It is secondary to be connected with data collecting plate card, data acquisition device and processor.
The utility model is also characterized by
The laser transmitting-receiving head group is installed on the workbench of the numerically-controlled machine tool by magnetic support, and the target reflecting mirror is logical
Magnetic support is crossed to be installed on the main shaft of the numerically-controlled machine tool.
The laser interferometer is the laser doppler interferometer of model MCV-500.
The data collecting plate card is USB-6002 data collecting card.
The beneficial effects of the utility model are: the on-line measurement system structure of the numerically-controlled machine tool dynamic accuracy of the utility model
It is simple and convenient to operate, can be measured the dynamic error for being clearly distinguishable from static geometric error, such as runout error, pass through simultaneously
Dynamic measuring data helps to analyze and find the error source of numerically-controlled machine tool.
Detailed description of the invention
Fig. 1 is the structural block diagram of the on-line measurement system of the numerically-controlled machine tool dynamic accuracy of the utility model.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
Referring to Fig. 1, the on-line measurement system of numerically-controlled machine tool dynamic accuracy provided by the utility model can be used for high-speed numeric control
The dynamic of the geometric position precision of lathe and machining center in addition to tumbler angle measures.Including laser interferometer, laser interferometer
Including laser transmitting-receiving head group and target reflecting mirror, laser transmitting-receiving head group is set on the workbench of numerically-controlled machine tool, target reflecting mirror
It is set on the main shaft of numerically-controlled machine tool, laser transmitting-receiving head group is also connected with data collecting plate card, data acquisition device and place in turn
Manage device.
Further, laser transmitting-receiving head group is installed on the workbench of numerically-controlled machine tool by magnetic support, and target reflecting mirror passes through
Magnetic support is installed on the main shaft of the numerically-controlled machine tool.
Specifically, laser interferometer selects the laser doppler interferometer of model MCV-500, measurement in the present embodiment
Maximum speed is 5m/s, and resolution ratio can reach 0.001um.Data collecting plate card is then USB-6002 data collecting card, is differentiated
Rate is 16, maximum sample rate 50ks/s.
In use, its main shaft is returned to zero tune first when measuring the main shaft measurement of inclination angle pitch angle in the horizontal plane
Displacement whole and then to its Z axis 50mm, prevents from colliding in measurement process.Secondly laser transmitting-receiving head group is utilized into magnetic support
It fixes on the table, is in laser transmitting-receiving head group on opposing stationary component, target reflecting mirror is fixed on using magnetic support
On machine tool chief axis, it is in target reflecting mirror on the component of relative motion, it then can will be by material compensation device and temperature
Compensator fixation improves measurement accuracy on the table.Before specifically measure, need to carry out to light laser interferometer
Operation, can connecing by laser head through the reflected laser beam of target to the laser beam that the light requirement of being reached is laser head sending
Receipts system receives, and the intensity for being received laser will meet the requirement of measurement in measurement overall process, finally enters angle displacement
Measurement interface.
When measurement, target reflecting mirror is fixed on machine tool chief axis using magnetic support, and laser transmitting-receiving head group is fixed using magnetic support
On the table, workbench moves along a straight line along basic rack, by equal interval sampling, selects millimeter as unit and sets data and adopt
Mode set is automatic collection, then carries out the acquisition of a data every 36mm in the Y-axis direction, is carried out under varying environment altogether
The measurement of tens groups of data.The angular rate signal of the vertical range in horizontal plane between workbench and machine tool chief axis is obtained, so
The signal is converted into digital signal by digital analog converter afterwards, is sent into processor using after data collecting card, processor
The range information received and initial pre-determined distance continue to compare and (can also export by error icon when necessary), i.e.,
It can obtain the tested inclination angle pitching angle value of main shaft in the horizontal plane.
Claims (6)
1. a kind of on-line measurement system of numerically-controlled machine tool dynamic accuracy, which is characterized in that including laser interferometer, the laser is dry
Interferometer includes laser transmitting-receiving head group and target reflecting mirror, and the laser transmitting-receiving head group is set on the workbench of numerically-controlled machine tool, institute
Target reflecting mirror is stated to be set on the main shaft of numerically-controlled machine tool, the laser transmitting-receiving head group be also connected in turn data collecting plate card,
Data acquisition device and processor.
2. the on-line measurement system of numerically-controlled machine tool dynamic accuracy as described in claim 1, which is characterized in that the laser transmitting-receiving
Head group is installed on the workbench of the numerically-controlled machine tool by magnetic support, and the target reflecting mirror is installed on the numerical control by magnetic support
On the main shaft of lathe.
3. the on-line measurement system of numerically-controlled machine tool dynamic accuracy as described in claim 1, which is characterized in that the laser interference
Instrument is the laser doppler interferometer of model MCV-500.
4. the on-line measurement system of numerically-controlled machine tool dynamic accuracy as described in claim 1, which is characterized in that the data acquisition
Board is USB-6002 data collecting card.
5. the on-line measurement system of numerically-controlled machine tool dynamic accuracy as described in claim 1, which is characterized in that the workbench quilt
It is configured to move in a straight line along basic rack and carries out equal interval sampling.
6. the on-line measurement system of numerically-controlled machine tool dynamic accuracy as claimed in claim 5, which is characterized in that described to adopt at equal intervals
The spacing of sample is 36mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920277816.7U CN209524877U (en) | 2019-03-06 | 2019-03-06 | A kind of on-line measurement system of numerically-controlled machine tool dynamic accuracy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920277816.7U CN209524877U (en) | 2019-03-06 | 2019-03-06 | A kind of on-line measurement system of numerically-controlled machine tool dynamic accuracy |
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| CN209524877U true CN209524877U (en) | 2019-10-22 |
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| CN201920277816.7U Expired - Fee Related CN209524877U (en) | 2019-03-06 | 2019-03-06 | A kind of on-line measurement system of numerically-controlled machine tool dynamic accuracy |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113188479A (en) * | 2021-03-31 | 2021-07-30 | 成都飞机工业（集团）有限责任公司 | Large-span guide rail parallelism detection method |
-
2019
- 2019-03-06 CN CN201920277816.7U patent/CN209524877U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113188479A (en) * | 2021-03-31 | 2021-07-30 | 成都飞机工业（集团）有限责任公司 | Large-span guide rail parallelism detection method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191022 Termination date: 20200306 |