CN102252757A - Double-color infrared thermometer applied to testing of cutting temperature of machine tool - Google Patents
Double-color infrared thermometer applied to testing of cutting temperature of machine tool Download PDFInfo
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- CN102252757A CN102252757A CN 201110159080 CN201110159080A CN102252757A CN 102252757 A CN102252757 A CN 102252757A CN 201110159080 CN201110159080 CN 201110159080 CN 201110159080 A CN201110159080 A CN 201110159080A CN 102252757 A CN102252757 A CN 102252757A
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Abstract
The invention provides a double-color infrared thermometer applied to testing of cutting temperature of a machine tool. The double-color infrared thermometer comprises a shell, a laser sighting device, a focusing cylinder, a convex lens, a beam splitter, optical filters, infrared detectors, a processor and a display; the shell has a structure of a three-way pipe; the laser sighting device is arranged on the shell and is positioned below the focusing cylinder; the focusing cylinder is arranged in one of two straight ports in the shell; the convex lens is arranged in the focusing cylinder; the beam splitter is arranged in the shell and an included angle of 45 degrees is formed between the beam splitter and the convex lens; the optical filters are arranged in other two openings of the shell; the infrared detectors are arranged outside the optical filters; the distances between the optical filters of the two openings of the shell and the infrared detectors are equal; meanwhile, the distances between two optical filters and the geometric center of the beam splitter are equal; and two infrared detectors are connected with the processor and the display is connected with the processor. The double-color infrared thermometer is high in measurement efficiency, high in safety performance and low in power consumption, has a simple structure and can continuously test temperature and store and export data.
Description
Technical field
The present invention relates to a kind of temperature measurer that is applied to the machine cut temperature test, belong to the temperature test technical field.
Background technology
In machinery manufacturing industry, present most mechanical component are to make by cut.Heat in metal cutting is except that spilling into surrounding medium on a small quantity, and all the other all import in cutter, smear metal and the workpiece, causes cutter, workpiece and lathe to heat up, and this will speed up tool wear, causes the workpiece thermal deformation, when serious even cause thermal deformation of machine tool.Therefore, when carrying out research such as cutting theory research, Tool in Cutting performance test and the test of machined material processing characteristics, extremely important to the measurement of cutting temperature.
Current measurement to cutting temperature mainly is by contact measurement methods such as thermopairs, and efficiency of measurement is low, security is not high yet.Though thermal infrared imager is a non-contact measurement, precision is lower, can't satisfy higher measuring accuracy requirement.Double color infrared ray is as a kind of contactless measurement, have safety, reliable, noncontact, fast, accurately, convenient, irreplaceable advantage such as the life-span is long, wide development space is arranged in the machining temperature survey.
The infrared double color temperature measurer is in rugged environment extremely, and as smog, dust, steam and particle are arranged in the air, and target is not full of under the situation of visual field, and double-colored temperature measurer all can guarantee exact temperature measurement.To motion carry out temperature survey with dangerous object the time, have safety, fast, advantage such as reliable, convenient, to its further research, no matter be militarily, still in other national economy field, all have very important significance.
All temperature are higher than the object of absolute zero all can launch infrared ray to the external world, and this is the basis of infrared measurement of temperature.Use a cover optical instrument to gather the infrared ray of measurement target emission, be divided into the different light beam of two bundle wavelength with spectroscope and optical filter, shine two respectively independently on the infrared detecting set, infrared detecting set promptly produces voltage, and radiation intensity is high more, and voltage is high more, and when target temperature is constant, the ratio of two voltages is constant, and when target temperature changed, voltage ratio also can change.Can measure the temperature value of target according to this principle.
Current common double color infrared temperature measuring instrument one is the double-colored temperature measurer of single pass accent disc type, a shared optical channel carries out the acquisition process of signal, this temperature measurer advantage is that optical texture is simple, rotates but need motor to drive chopper wheel, and power consumption is big, debugging is loaded down with trivial details and be prone to fault; Another kind is a channel structure, use spectroscope that the infrared radiation of measurement target emission is divided into two bundles, be radiated on the corresponding infrared eye by the optical filter of determining main logical wavelength respectively, two voltage ratios that produce are tried to achieve temperature through demarcating, advantage is simple to operate, need not chopper wheel and motor driven, but because its focusing and method of sight complexity are used also fewer.
Summary of the invention
The present invention is directed to the deficiency that existing double color infrared temperature measuring instrument exists, a kind of simple in structure, convenient, with low cost double color infrared temperature measuring instrument that is applied to the machine cut temperature test of operation debugging is provided.
The double color infrared temperature measuring instrument that is applied to the machine cut temperature test of the present invention is by the following technical solutions:
This double color infrared temperature measuring instrument comprises housing, laser sight, focusing drum, convex lens, spectroscope, optical filter, infrared eye, processor and display; Housing is a three-way pipe structure, laser sight is installed on the housing and is in the below of focusing drum; Focusing drum is installed in one of them of interior two straightthrough ports of housing, and the inside of focusing drum is equipped with convex lens, and spectroscope is arranged on the inside of housing and is 45 with convex lens; In two other opening of housing optical filter is installed all, the arranged outside of optical filter has infrared eye, and the optical filter in these two openings of housing equates that with the distance of infrared eye simultaneously, two optical filters are also identical with the distance of spectroscopical geometric center; Two infrared eyes all are connected with processor, and display is connected with processor.
Processor comprises signal amplification circuit, A/D converter and single-chip microcomputer, and signal amplification circuit is connected with A/D converter, and A/D converter is connected with single-chip microcomputer.
Because selected spectroscope has the first heavy filter function, according to the thermometric requirement, spectroscopical penetrating wavelength coverage is at least 900nm-1200nm; Second heavily filtering finish by optical filter, the penetrating wavelength of two optical filters all should be between 900nm-1200nm, and requirement can not overlap, in case produce bigger temperature measurement error.The penetrating wavelength of choosing in two optical filters one is 980nm, and another penetrating wavelength is 1064nm, and the response wave length scope of selected infrared eye is 750nm-1200nm.
When the laser sight emitted laser bundle on the housing is got to the target area, can confirm to aim at successfully, the rotation focusing drum can obtain the focusing of specific scale.The infrared radiation that high temperature produces during metal cutting is absorbed by optical system and converges, and beam split and filtering in addition, infrared eye plays the opto-electronic conversion effect, two signal sensors are accepted the infrared beam by the optical filter of two penetrating wavelength of difference respectively, produce two voltage signals, two voltage signals are input to processor, and processor is asked for target temperature according to the voltage signal of receiving, can obtain target temperature through demarcating calibration.Display is used for information such as displays temperature.
The present invention compares with traditional cutting temp measuring method, the efficiency of measurement height, and non-contact measurement, safe; Compare with traditional single channel, need not the motor driven chopper wheel, simple in structure, power consumption is little, and failure rate is low; Adopt temperature measurers of eyepieces aiming to compare with some, focus and aim at simple and conveniently, the aiming laser reflected light is filtered by optical filter, can not impact thermometric; Infrared eye adopts infrared light electrification pond, and reaction more rapidly accurately; And can have memory function by processor, and can carry out thermometric continuously, can be with data storage and derivation.
Description of drawings
Fig. 1 is the structural representation of double color infrared temperature measuring instrument of the present invention.
Fig. 2 is the principle of work synoptic diagram of double color infrared temperature measuring instrument of the present invention.
Among the figure: 1, housing; 2, focusing drum; 3, lens jacket; 4, convex lens; 5, spectroscope; 6, optical filter; 7, optical filter sleeve; 8, optical filter; 9, optical filter sleeve; 10, laser sight; 11, infrared eye; 12, infrared eye; 13, processor; 14, display.
Embodiment
Double color infrared temperature measuring instrument structure of the present invention comprises housing 1, laser sight 10, focusing drum 2, convex lens 4, spectroscope 5, optical filter, infrared eye, processor 13 and display 14 as depicted in figs. 1 and 2.Housing 1 is a three-way pipe structure.Laser sight 10 is installed on the housing 1.Focusing drum 2 is installed in one of them of housing 1 interior two straightthrough ports, is threaded with housing 1, and the inside scioptics cover 3 of focusing drum 2 is equipped with convex lens 4, and rotation focusing drum 2 can be adjusted measuring distance.Spectroscope 5 is arranged on the inside of housing 1, is 45 with convex lens 4.Be separately installed with optical filter sleeve 7 and optical filter sleeve 9 in two other opening of housing 1, the axis normal of optical filter sleeve 7 and optical filter sleeve 9.The inner end of optical filter sleeve 7 and optical filter sleeve 9 is separately installed with optical filter 6 and optical filter 8, be separately installed with infrared eye 11 and infrared eye 12 in optical filter sleeve 7 and the optical filter sleeve 9, optical filter 6 equates with the distance of infrared eye 12 with the distance and the optical filter 8 of infrared eye 11.Simultaneously, optical filter 6 is also identical with the distance of the geometric center of spectroscope 5 with optical filter 8.Infrared eye 11 all is connected with processor 13 by lead with infrared eye 12, and processor 13 is connected with display 14.Processor 13 mainly comprises signal amplification circuit, A/D converter and a single-chip microcomputer.Display 14 is connected with processor 13, is used for the display process result.
The light beam irradiates that convex lens 4 converge can be divided into the orthogonal light beam of two bundles to spectroscope 5, shine on infrared eye 11 and the infrared eye 12 by optical filter 6 and the optical filter 8 that is installed in housing 1 two other opening respectively.Because optical filter 6 is identical with the geometric center distance of spectroscope 5 with optical filter 8, also equates with the distance of each self-corresponding infrared eye, only need rotate focusing drum 2 in the time of so just guaranteeing focusing, need not adjust other inner structures again.The voltage signal that infrared eye 11 and infrared eye 12 produce is by the amplifying circuit amplifying signal and be input to A/D converter, again by A/D converter input single-chip microcomputer, single-chip microcomputer is asked ratio by the program that weaves to voltage signal, proofread and correct through demarcating again, net result is saved in single-chip microcomputer internal storage (RAM), be delivered to display 14 simultaneously, show by display 14.
During actual test, above-mentioned temperature measurer both can be handed measurement, also can install base additional, was fixed on the lathe cutter saddle or on the main spindle box, followed tool feeding automatically.The focal length of convex lens 4 is 40mm, determined measuring distance L after, the rotation focusing drum 2, will aim at the position that graduated scale is shown measuring distance L to focal line, open laser sight 10, when laser spot is radiated at measurement target, promptly finish the focusing and the aiming.The light beam that converges is at first by spectroscope 5, light beam is divided into two bundles, the light beam of setting out on a journey is the optical filter 8 of 980nm by main penetrating wavelength, following road light beam is the optical filter 6 of 1064nm by main penetrating wavelength, optical filter will filter unwanted wavelength coverage light, and extraneous simultaneously stray light is also filtered.Because selected spectroscope 5 has the first heavy filter function, according to the thermometric requirement, the penetrating wavelength coverage of spectroscope 5 is at least 900nm-1200nm.Second heavily filtering finish by optical filter, the penetrating wavelength of two passages all should be between 900nm-1200nm, and requirement can not overlap, in case produce bigger temperature measurement error.During concrete the application, the penetrating wavelength of choosing in two optical filters one is 980nm, and another penetrating wavelength is 1064nm, and the response wave length scope of selected infrared eye is 750nm-1200nm.Light beam by optical filter shines respectively on infrared eye 11 and the infrared eye 12, produces two voltages, and the voltage signal that infrared eye produces is handled, preserved by processor 13 and the result is delivered to display 14, is shown by display 14.
The present invention has adopted simple focusing and method of sight, and is simple in structure, and the operation debugging is convenient, and failure rate is low, and is with low cost, and precision is higher, and the data that have are preserved with export function and are fit to very much the machine cut temperature detection that needs carry out continuous temperature measurement.
Claims (3)
1. a double color infrared temperature measuring instrument that is applied to the machine cut temperature test comprises housing, laser sight, focusing drum, convex lens, spectroscope, optical filter, infrared eye, processor and display; It is characterized in that: housing is a three-way pipe structure, laser sight is installed on the housing and is in the below of focusing drum; Focusing drum is installed in one of them of interior two straightthrough ports of housing, and the inside of focusing drum is equipped with convex lens, and spectroscope is arranged on the inside of housing and is 45 with convex lens; In two other opening of housing optical filter is installed all, the arranged outside of optical filter has infrared eye, and the optical filter in these two openings of housing equates that with the distance of infrared eye simultaneously, two optical filters are also identical with the distance of spectroscopical geometric center; Two infrared eyes all are connected with processor, and display is connected with processor.
2. the double color infrared temperature measuring instrument that is applied to the machine cut temperature test according to claim 1, it is characterized in that: described processor comprises signal amplification circuit, A/D converter and single-chip microcomputer, signal amplification circuit is connected with A/D converter, and A/D converter is connected with single-chip microcomputer.
3. the double color infrared temperature measuring instrument that is applied to the machine cut temperature test according to claim 1, it is characterized in that: one penetrating wavelength is 980nm in described two optical filters, another penetrating wavelength is 1064nm, and the response wave length scope of selected infrared eye is 750nm-1200nm.
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| CN 201110159080 CN102252757A (en) | 2011-06-14 | 2011-06-14 | Double-color infrared thermometer applied to testing of cutting temperature of machine tool |
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| CN 201110159080 CN102252757A (en) | 2011-06-14 | 2011-06-14 | Double-color infrared thermometer applied to testing of cutting temperature of machine tool |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103837237A (en) * | 2012-11-23 | 2014-06-04 | 哈尔滨市三和佳美科技发展有限公司 | Dual-color infrared thermometer special for measuring train axle temperature |
| CN108279071A (en) * | 2017-12-29 | 2018-07-13 | 南京理工大学 | Full filed temperature field of molten pool detecting system based on two-color thermometry |
| CN109556730A (en) * | 2018-12-05 | 2019-04-02 | 南京沪友冶金机械制造有限公司 | A kind of coke oven temperature measuring device |
| CN112171378A (en) * | 2020-09-29 | 2021-01-05 | 华中科技大学 | Turning temperature measurement system based on microstructure optical fiber sensing |
| CN112212977A (en) * | 2020-09-22 | 2021-01-12 | 北京理工大学 | High-speed high-resolution high-precision ultrahigh-temperature molten pool temperature field online monitoring device and method |
| CN115213725A (en) * | 2022-06-29 | 2022-10-21 | 浙江傅氏机械科技有限公司 | Digit control machine tool with self-checking system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201561803U (en) * | 2009-03-20 | 2010-08-25 | 陆文强 | Infrared double-wave length non-contact temperature measuring device |
-
2011
- 2011-06-14 CN CN 201110159080 patent/CN102252757A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201561803U (en) * | 2009-03-20 | 2010-08-25 | 陆文强 | Infrared double-wave length non-contact temperature measuring device |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103837237A (en) * | 2012-11-23 | 2014-06-04 | 哈尔滨市三和佳美科技发展有限公司 | Dual-color infrared thermometer special for measuring train axle temperature |
| CN108279071A (en) * | 2017-12-29 | 2018-07-13 | 南京理工大学 | Full filed temperature field of molten pool detecting system based on two-color thermometry |
| CN109556730A (en) * | 2018-12-05 | 2019-04-02 | 南京沪友冶金机械制造有限公司 | A kind of coke oven temperature measuring device |
| CN112212977A (en) * | 2020-09-22 | 2021-01-12 | 北京理工大学 | High-speed high-resolution high-precision ultrahigh-temperature molten pool temperature field online monitoring device and method |
| CN112212977B (en) * | 2020-09-22 | 2022-02-08 | 北京理工大学 | High-speed high-resolution high-precision ultrahigh-temperature molten pool temperature field online monitoring device and method |
| CN112171378A (en) * | 2020-09-29 | 2021-01-05 | 华中科技大学 | Turning temperature measurement system based on microstructure optical fiber sensing |
| CN112171378B (en) * | 2020-09-29 | 2022-01-11 | 华中科技大学 | Turning temperature measurement system based on microstructure optical fiber sensing |
| CN115213725A (en) * | 2022-06-29 | 2022-10-21 | 浙江傅氏机械科技有限公司 | Digit control machine tool with self-checking system |
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Application publication date: 20111123 |