| NC machine plays a very important role in today's manufacturing industry, and is an important means of civilian and military equipment manufacturing. Economic type CNC machine is compared with the high-end CNC machine tools, cost-effective, functional characteristics of pertinence, the working efficiency is higher than the average 2 to 4 times, batch, especially suitable for medium difficulty, frequent repeat process.The geometric error ratio of economical CNC machine tools accounted for about 70% to 80% of total error. In the mechanism of machine error, the geometric error characteristics, principle and method of geometric error measurement and error compensation theory to carry on the thorough research, according to the AH 130 economic type NC boring and milling machine as the research object, the function and structure of each part of a detailed analysis. In the guidance of geometric error theory, combined with the characteristics of the structure of the machine, the interferometer as a measuring instrument using dual frequency laser, the actual position of the machine X, Y, Z three directions of repeated measurement, calculate the average value of error.According to the polynomial model of error compensation, the NC system of the compensation of geometric error Have a significant role in efficient promotion through the test and verify the accuracy of geometric AH130 economical CNC milling machine, to quickly improve the precision of the machine tool, has certain guiding significance and role of improving efficient geometric positioning AH 130 economical CNC milling machine precision. |
PDF Full Text Request