CN102967287B - High-precision detection instrument and method for measuring perpendicularity of large mechanical element - Google Patents
High-precision detection instrument and method for measuring perpendicularity of large mechanical element Download PDFInfo
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- CN102967287B CN102967287B CN201210484786.XA CN201210484786A CN102967287B CN 102967287 B CN102967287 B CN 102967287B CN 201210484786 A CN201210484786 A CN 201210484786A CN 102967287 B CN102967287 B CN 102967287B
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- 238000006073 displacement reaction Methods 0.000 claims abstract description 43
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- 238000005259 measurement Methods 0.000 claims abstract description 14
- 239000004579 marble Substances 0.000 claims description 20
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- 238000012360 testing method Methods 0.000 claims description 11
- 238000004164 analytical calibration Methods 0.000 claims description 4
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Abstract
The invention discloses a high-precision detection instrument for measuring the perpendicularity of a large mechanical element. The high-precision detection instrument consists of three parts including a displacement sensor device, an information communicating and processing module and an instrument stand; the instrument stand is formed by a base and a support, wherein the support is installed on the base; the displacement sensor device consists of high-precision displacement sensors and the information communicating and processing module; two or a plurality of high-precision displacement sensors are arranged in parallel up and down; and the high-precision displacement sensors are sleeved on the support through sliding seats and are adjustably connected with the support. The method for measuring comprises: step 1, calibrating the perpendicularity of the detection instrument; and step 2, detecting. The instrument has the advantages of simplicity in structure, convenience in operation and use, high automation and digitization degrees, high measurement precision, low instrument manufacturing cost and low measurement cost. The instrument is durable, has a long service life and is low in maintenance cost.
Description
Technical field
The present invention relates to a kind of detector and method, particularly relate to a kind of high precision test instrument and the measuring method of measuring large scale mechanical component verticality.
Background technology
All the time, for the difficult problem that the measuring for verticality on the mechanical component of some sizes large (> 2000mm), weight large (> 1000Kg), accuracy requirement high (< 0.01mm) is in mechanized equipment manufacture process.
Three kinds of verticality measuring methods such as existing " three coordinate measuring machine method ", CCD mensuration and dial gauge method, there is insoluble practical problems in the high-acruracy survey for the verticality of large scale mechanical component.Wherein " large-scale three coordinate measuring machine " theoretically, the verticality of large-scale part can be measured, but be subject to the impact of its measuring head joint arm gap and repetitive positioning accuracy, its measuring accuracy is difficult to be less than more than 0.02 millimeter accuracy requirement, and large scale mechanical component own dimensions is large, and weight is large, mobile adjustment needs the hoisting devices such as crane, and environment for use and the instrument self space of three coordinate measuring machine are often restricted; Dial gauge traditional measurement method owned by France, its monitor precision used and digitized degree Shortcomings; CCD measures noncontact measuring method owned by France, does not have the above-mentioned deficiency of three coordinate measuring machine and dial gauge method, but CCD mensuration complicated operation, instrument price are high, measures cost high.Therefore a kind of high precision test instrument and the measuring method of measuring large scale mechanical component verticality is badly in need of.
Summary of the invention
In order to the weak point in solving the problem, the invention provides a kind of high precision test instrument and the method for measuring large scale mechanical component verticality.
The technical solution used in the present invention is: a kind of high precision test instrument measuring large scale mechanical component verticality, and it is made up of displacement sensor device, information communication and processing module and instrument stand three part;
Instrument stand is configured to propping up by base, and support installing is on base; Displacement sensor device is made up of high accuracy displacement sensor, information communication and processing module; High accuracy displacement sensor is two or more and be arranged in parallel up and down; High accuracy displacement sensor to be sleeved on support by slide and and support form adjustable connection.
Its measuring method is:
1st step: the verticality calibration of detector
Be placed on by marble calibrated bolck in detection marble platform, the plane of calibration marble calibrated bolck is vertical with marble platform; By the plane contact of high accuracy displacement sensor and marble calibrated bolck, computer display screen can show the contact condition of each high accuracy displacement sensor in real time, when high accuracy displacement sensor display each on computer screen is all non-vanishing, " calibration knob " is clicked with mouse, the current location of all high accuracy displacement sensors is remembered for null position by detector automatically, completes instrument calibration;
2nd step: detect
Part is placed in marble platform, requires the verticality treating side and bottom surface detecting part 7; By the contact of high accuracy displacement sensor of Verticality gauge calibrated and the plane contact to be measured of part, computer display screen can show the contact condition of each sensor in real time, when sensor display each on computer screen is all non-vanishing, " test button " is clicked with mouse, information communication and processing module can calculate the numerical value of verticality automatically, and be presented on computer screen, complete the squareness measurement of workpiece.
Structure of the present invention is simple, easy for operation, robotization and digitized degree is high, measuring accuracy is high, and instrument cost is low, it is low to measure cost.Instrument is durable in use, and the life-span is long, and maintenance cost is low.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is one-piece construction schematic diagram of the present invention.
Instrument calibration demonstration schematic diagram when Fig. 2 is for using.
When Fig. 3 is for using, instrument detects demonstration schematic diagram.
Fig. 4 is the measurement interface view on display screen.
In figure: 1, high accuracy displacement sensor; 2, information communication and processing module; 3, base; 4, support; 5, marble calibrated bolck; 6, marble platform; 7, part; 8, side is treated; 9, slide.
Embodiment
As shown in Figure 1, this measuring instrument forms primarily of displacement sensor device, information communication and processing module 2 and instrument stand three part.
Instrument stand is made up of base 3 (integrated disc portions) and support 4, and support installing is on base.Play fixing and supporting role to displacement transducer, material is plain metal structural steel.Displacement sensor device is made up of high accuracy displacement sensor 1, information communication and processing module 2.High accuracy displacement sensor 1 is two or more and be arranged in parallel up and down; High accuracy displacement sensor to be sleeved on support 4 by slide 9 and and support form adjustable connection.
The Main Function one of displacement sensor device is that communication of receiving information realizes Self-tuning System with the instruction of processing module, and two is displacement is converted to digital signal exports information communication and processing module to by contacting with measured surface.High accuracy displacement sensor and instrument stand are adjustable connections, can do accommodation according to the concrete size and structure measuring part.
Information communication and processing module form primarily of the PC with special software.Main Function one is that the steering order of operating personnel is sent to a high precision displacement sensor, two is accept high precision displacement sensor feedack and carry out on request processing (computation and measurement data result, display results in real time, stores information, exports type information etc.).The PC of this unit and high precision displacement sensor be divided into wireless transmission and wire transmission two kinds of patterns optional.
The measurement using method of detector:
This detector is according to five principles of GB1958-2004 " geometrical and toleranging detect regulation ": with comparison principle, the surving coordinate value principle of ideal factor, measure characteristic parameter principle, measure principle of beating, controlled entity border principle manufactures and designs, comprehensively " with the comparison principle of ideal factor " and " measuring characteristic parameter principle " direct method of measurement detect the error of perpendicularity on surface to be measured, and measuring principle meets Standard.
1st step: the verticality calibration of detector
As shown in Figure 2, be placed on by marble calibrated bolck 5 in detection marble platform 6, the plane of calibration marble calibrated bolck is vertical with marble platform.By the plane contact of high accuracy displacement sensor and marble calibrated bolck, computer display screen can show the contact condition of each high accuracy displacement sensor in real time, when high accuracy displacement sensor display each on computer screen is all non-vanishing, " calibration knob " is clicked with mouse, the current location of all high accuracy displacement sensors is remembered for null position by detector automatically, completes instrument calibration.
Principle is by calibration function (null position of automatic Memory sensor), instrument establishes one " the canonical measure plane " that be reference point with each sensor zero point, the verticality of being somebody's turn to do " canonical measure plane " depends on the verticality of " calibration plane ", and " calibration plane " is " GB " standard components such as " standard square chest, standard block gauges ".
2nd step: detect
As shown in Figure 3, part (this spare part outside measurement 3200 × 1100 × 600) is placed in marble platform, requires the verticality treating side 8 and bottom surface detecting part 7; By the contact of high accuracy displacement sensor of Verticality gauge calibrated and the plane contact to be measured of part 7, computer display screen can show the contact condition (Fig. 4) of each sensor in real time, when sensor display each on computer screen is all non-vanishing, " test button " is clicked with mouse, information communication and processing module can calculate the numerical value of verticality automatically, and be presented on computer screen, complete the squareness measurement of workpiece.
Have the following advantages:
Measuring principle meets Standard.This detector manufactures and designs according to GB1958-2004 " geometrical and toleranging detects regulation ", meets Standard.
Measuring accuracy is high.Employing compares and measures principle, and there is not resetting error, do not affect by instrument self precision etc., adopt photoelectric measuring microtechnology, the full accuracy that can reach existing macroscopic measurement reaches ± 0.001mm;
Digitized degree is high.Adopt computer digital communications and data treatment technology, there is measurement data and show in real time and the function such as data communication and process (result calculates, store, print).
Measurement cost is low.Due to measuring instrument of the present invention, compare apparatus structure simply with large-scale three coordinate measuring machine with CCD measuring system, manufacturing expense is low;
Testing cost is low.Instrument own dimensions little (mobile convenient), do not need mobile adjustment large-scale workpiece, mobile instrument can realize in-site measurement, eliminates the processes such as the lifting adjustment of large-scale workpiece; Easy to use, do not need Special use environment (temperature, humidity, light, noise etc.), user does not need special special training to use instrument.
Above-mentioned embodiment is not limitation of the present invention; the present invention is also not limited in above-mentioned citing; the change that those skilled in the art make within the scope of technical scheme of the present invention, remodeling, interpolation or replacement, also all belong to protection scope of the present invention.
Claims (1)
1. measure a high-precision detecting method for large scale mechanical component verticality, it is characterized in that: for physical dimension 3200mm × 1100mm × 600mm, the high precision test of the large scale mechanical component verticality of accuracy requirement 0.001mm; The high precision test instrument used is made up of displacement sensor device, information communication and processing module and instrument stand three part;
Described instrument stand is configured to propping up by base, and described support installing is on base; Described displacement sensor device adopts high accuracy displacement sensor; Described high accuracy displacement sensor is two or more and be arranged in parallel up and down; High accuracy displacement sensor to be sleeved on support by slide and and support form adjustable connection;
Its measuring method is:
1st step: the verticality calibration of detector
Be placed on by marble calibrated bolck in detection marble platform, the plane of calibration marble calibrated bolck is vertical with marble platform; By the plane contact of high accuracy displacement sensor and marble calibrated bolck, computer display screen can show the contact condition of each high accuracy displacement sensor in real time, when high accuracy displacement sensor display each on computer screen is all non-vanishing, " calibration knob " is clicked with mouse, the current location of all high accuracy displacement sensors is remembered for null position by detector automatically, completes instrument calibration;
2nd step: detect
Part is placed in marble platform, requires the verticality treating side and bottom surface detecting part 7; By the contact of high accuracy displacement sensor of Verticality gauge calibrated and the plane contact to be measured of part, computer display screen can show the contact condition of each sensor in real time, when sensor display each on computer screen is all non-vanishing, " test button " is clicked with mouse, information communication and processing module can calculate the numerical value of verticality automatically, and be presented on computer screen, complete the squareness measurement of workpiece.
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| CN201210484786.XA CN102967287B (en) | 2012-11-26 | 2012-11-26 | High-precision detection instrument and method for measuring perpendicularity of large mechanical element |
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| CN201210484786.XA CN102967287B (en) | 2012-11-26 | 2012-11-26 | High-precision detection instrument and method for measuring perpendicularity of large mechanical element |
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| CN102967287B true CN102967287B (en) | 2015-07-01 |
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| CN103364206B (en) * | 2013-06-26 | 2016-01-20 | 北京汽车研究总院有限公司 | Frame board device for testing stiffness inside and outside a kind of car door |
| CN107462186A (en) * | 2017-09-08 | 2017-12-12 | 昆山冠品优精密机械有限公司 | 4th axle arrangement for measuring verticality and the 4th shaft flange end face squareness detection method |
| CN108577871B (en) * | 2018-05-17 | 2024-09-17 | 上海市同济医院 | Multi-axis sensor combination device for accurately evaluating cervical dystonia |
| CN113124804B (en) * | 2019-12-30 | 2023-02-24 | 中核建中核燃料元件有限公司 | Skeleton contour dimension measuring method |
| CN114413796B (en) * | 2022-02-08 | 2022-11-29 | 大连理工大学 | Multifunctional standard device for precision calibration of precision parts and equipment |
| CN115097591A (en) * | 2022-06-17 | 2022-09-23 | 中国科学院物理研究所 | Hollow retroreflector with replaceable reflector, and preparation and adjustment methods thereof |
| CN115979118B (en) * | 2023-03-17 | 2023-06-09 | 山东科技大学 | Device and method for measuring verticality error and error azimuth angle of cylindrical part |
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| CN1067961A (en) * | 1991-06-14 | 1993-01-13 | 成都科技大学 | The hole is to the detection method of plane verticality |
| CN1474428A (en) * | 2003-07-03 | 2004-02-11 | 上海旭电子玻璃有限公司 | Detecting device and for perpendicularity and eccentricity of glass conic tube neck of picture tube |
| JP2007333556A (en) * | 2006-06-15 | 2007-12-27 | Micro Engineering Inc | Method and device for multiple point measurement of perpendicularity |
| CN102538660A (en) * | 2010-12-20 | 2012-07-04 | 苏州春兴精工股份有限公司 | Flatness measuring device for workpieces |
| CN203024752U (en) * | 2012-11-26 | 2013-06-26 | 青岛港湾职业技术学院 | High-precision detector used for measuring verticality of large-size mechanical part |
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