Positioning and cutting-off device for composite acoustic board machining

The utility model belongs to the technical field of acoustic board processing, and particularly relates to a positioning and cutting device for composite acoustic board processing, which comprises a cutting table and a support column, and a protection mechanism and a cutting mechanism are arranged at the top end of the cutting table. According to the positioning and cutting-off device for composite acoustic board machining, by arranging the protection mechanism, chippings generated during cutting-off can be protected, and the chippings can be collected to a certain degree, so that the working environment is improved, the health of workers is guaranteed, and the problem that in the background art, when the device is used for cutting off an acoustic board, the chippings are prone to being damaged is solved. In order to solve the problems that in the prior art, due to the fact that generated chippings are prone to splashing, the working environment is affected to a certain extent, and the health of workers is al