Online automatic grinding device for automobile rubber sealing strip

The utility model discloses an online automatic grinding device for an automobile rubber sealing strip in the technical field of sealing strips. Workbench, the bottom of the workbench is fixedly connected with four sets of supporting legs distributed in an array mode. Opening is formed in the workbench, a top plate is fixedly connected to the top of the workbench. The bottom of the top plate is connected with a raw material roller; limiting arms are arranged on the right sides of the raw material rollers; the bottom of the limiting arm is rotationally connected with a limiting wheel; a bearingbox is fixedly connected to the top of the workbench and located below the top plate, sliding grooves are formed in the top and the bottom of an inner cavity of the bearing box, sliding blocks are slidably connected to the sliding grooves, a first motor is fixedly connected between the upper sliding block and the lower sliding block, a grinding disc is fixedly connected to the right power outputend of the first motor, an