Development And Realization Of The Measuring Function On The CNC Machine Tool

With the development of the modern industrial technology, the CNCmachine tool is more and more widely used in production. As a result, thefinish accuracy of a product becomes higher and higher. For this situation,traditional measuring implements and measuring methods can't meet theneed of the measurement. In precise measurement, three-coordinatesmeasurement machine plays an important role. However, it is tooexpensive for the most colleges and enterprises to purchase the machine.Paying attention to the similarities in structure between CNC machinetool and coordinates measuring implement, we can measure accuratelymaking use of the CNC machine tool.The paper expands the function of the CNC machine tool.,takingadvantages of the coordinate motion of the machine. A measurementsystem, including probe, control box, camera and computer is embed intothe CNC machine tool. This makes it possible that the machine tool havemeasuring function.Firstly, the paper proves the possibility that the CNC machine toolcan be attached measuring function by making the comparison instructure and function between the two kinds of machines. Secondly, thepaper introduces the general configuration of the measurement system.And then relates the hardware disposition in detail. Next, the mostimportant contents are given including the methods of software design insymbol recognition and data process. Lastly, by the measuring example,the paper analyses the function of this measuring system and measuringtolerance and points out developing prospects.