Infra-red measure lukewarm in field of turning workpiece temperature online the application in monitoring

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When accurate turning, rotate the temperature of workpiece is relatively inferior, in 0~50 ℃ limits, rotate to this kind the temperature of workpiece is measured have certain difficulty, the method that it cannot use convention and convention is monitored in real time rotate the temperature of workpiece. This article is infra-red in measuring Wen Yi to machine a process in nicety, curved surface temperature rotates to measure medium application to undertake in normal temperature a few discuss. Its are main content includes: Brief introduction is infra-red measure lukewarm principle; Design system of the online temperature that monitor, temperature of analytic turning workpiece monitors precision. Of the temperature of the object and radiation power this error hedge - Bo ear thises graceful law gives out in type, w(T) issues radiant energy for T of unit area temperature; Wl is in for the object the radiant energy of some wave band; E is the emissive rate of the object; L is the wavelengh of the object; T is thermodynamic temperature, unit K; S is this error hedge - Bo ear thises graceful constant, s=5.

K4) of · of 67 × 10-12W/(cm2. Graph 1 temperature field is online basis of block diagram of the system that monitor this error hedge - Bo ear thises graceful constant is mensurable, the temperature of the object is higher, radiation strength is greater. The temperature that should know an object only reachs his to blast off rate, with respect to the radiation intensity that can measure an object place to blast off. If the graph is shown 1 times, use infra-red the temperature field that measures Wen Yi to monitor work, the method that this device uses fast and mobile sensor undertakes those who realize temperature field fast scanning comes to divide evenly to its workpiece monitor. The double tool carrier that uses lathe will pass feeling head installation to be on a tool carrier, when measuring, infra-red pass feeling head to follow tool carrier divide evenly fast shift, signal of its workpiece temperature puts evacuation to collect card into data via carry in. According to the rate with the length of workpiece, floating tool carrier, reach the change in the temperature inside cycle of a scanning, build a coordinate, rise workpiece length and temperature change correspondence, undertake successive scanning to turning workpiece suppose, every time sweep time is 5s, got the work with 5s clearance so the temperature of each positions, handle software with the computer but the temperature field that draw gives this work. Analysed additionally infra-red measure lukewarm precision and dependability, it suffers the effect of a lot of elements, if atmosphere is absorbed, limits of area of wavelengh of heat radiation of equipment of adjacent of rate of radiate of coefficient of setting of radiate of air dust and suspension particle, sun's rays, wind- driven, test, distance, object, photograph, job and instantaneous angle of visual field. From above a few respects were analysed right infra-red the effect that measures lukewarm precision. This literary grace is used infra-red measure Wen Yi to be in with respect to turning workpiece the temperature field below treatment status undertakes monitoring. From the point of the result that monitor: Use infra-red measuring Wen Yi to undertake monitoring to the temperature of turning workpiece is feasible and effective; It can reflect the change of workpiece temperature field in real time quickly, its precision can amount to ± 3 ℃ , satisfy the requirement that we monitor completely. CNC Milling CNC Machining