Large-size oblique-bed numerical control machine tool telescopic protection

A large-size numerical control machine tool with an inclined lathe bed comprises a lathe bed, a telescopic protector is arranged on the upper side of the lathe bed, a first guide rail and a second guide rail are arranged on the upper side of the lathe bed, and a first fixing block and a second fixing block which are matched with the first guide rail and the second guide rail are arranged on the lower side of the telescopic protector. The invention relates to a large-size oblique-bed numerical control machine tool telescopic protection device which has the characteristics of simplicity in manufacturing, convenience in assembly, cost saving, most important protection performance and long service life. The telescopic protection is well matched with the bed body, and when backward inclinationoccurs, the first rolling guide wheel and the second rolling guide wheel play a good auxiliary role. And the upper jacking part plays a role in guiding during telescopic movement, so that the normal operation of telescopic pr