Cold core sand casting device and casting process

The invention discloses a cold core sand casting device and casting process. The cold core sand casting device comprises a base, a fixed plate, a first sliding groove, a second sliding block and a second threaded hole, wherein the fixing plate is mounted on one side of the top end of the base. The device is scientific and reasonable in structure, and safe and convenient to use; universal wheels are installed around the bottom of the base, so that it is convenient for the staff to carry and move the device. A lower sand box is placed on the top of the base, a threaded rod is rotated by operating a rocker, the position of the threaded rod is fixed with a limiting plate, the rotation of the threaded rod drives a first sliding block to move, then a moving plate moves, the first sliding block and the fixed plate clamp the lower sand box, the limiting plate is moved by moving the second sliding block, the limiting plate fixes the two sides of the lower sand box, and the position of the limiting plate is fixed throu