EMO 2007 exhibition launched in Germany called "Hydrogage" measurement method. This is a closed loop measurement system, which uses the Gauge (Plug) flow through between workpiece and the cooling fluid, by measuring the coolant fluid resistance when the plug out (or pressure) to detect the increasing size of the workpiece.
According to Mori Seiki USA vice president and chief technology officer GregHyatt introduction, although Hydrogage the measurement principle with some pneumatic gauge similar to, but not simply measure the gas medium air into liquid medium, it uses a fully different measurement methods and sensing principle.
Hydrogage can measure the workpiece diameter and the diameter, measured with a special plug-specific diameter size, the resolution up to 0.5 m, and have a high repeat accuracy. The system is best at measuring the surface is inside and outside, but it can also measure by setting a variety of other surfaces (including flat, conical, pyramidal, etc.).
Coolant pipe on the back because the pressure is inversely proportional to its size constraints, it can calculate at high precision the actual size of the workpiece. However, the measurement accuracy also depends on the calibration plug for the accuracy of standard parts. The frequency calibration of the system depends on the processing environment: the temperature is more stable processing environment may be calibrated only once in each class; in a large temperature processing environment, you may need to calibrate once per hour.
Through calibration, Hydrogage the system can automatically adjust the cooling fluid temperature and viscosity. Hyatt noted that to maintain the coolant temperature may be a challenge; the viscosity of the problem only when using oil-based coolant to be considered (water-based cooling fluid does not exist on this issue). In order to achieve the highest level of measurement accuracy, will have a lot of cutting in the heat of processing, may need to use cutting fluid cooler. "Coolant temperature will affect the size of the workpiece, if the standard parts to be cooled liquid splashes, and when the plug work in the coolant, its size will be affected." Hyatt said, "If the coolant temperature exceeds the control will affect the measurement performance of the system, like any measurement system that. "As long as the system is the correct calibration, Hydrogage for the type of coolant is not sensitive.
Hydrogage of all electronic components are installed in an electrical machine cabinet, in the case of a collision will not be damaged. Complete a measurement cycle is usually only a few seconds. Therefore, it was duty of processing, can be used for rapid measurement of the workpiece Hydrogage and shorter than the time for manual recovery process; in the automatic processing of unattended, can Hydrogage programming, according to the measured size of the workpiece value, adjust the offset of heavy cutting tool parts, machine tools, or trigger alarm, so that "no real process."
Hyatt noted that the supply of coolant to control and measure pressure, requires a dedicated interface, Mori Seiki and CoolJetSystems function as ChipBlaster company produced high-pressure coolant delivery system interface, the user can live on different machines Installation Hydrogage measurement system. I am China Print Net writer, reports some information about cheap corsets , body shapers undergarments.
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