The utility model discloses a shake soon and sieve reel welding seam grinding frock, on supporting, the lead screw is fixed with the level(l)ing lead screw, the mould fixed plate is through setting up on the silk braid of mould fixed plate bottom is fixed in the level(l)ing lead screws of two lead screws between supporting, the bottom of mould fixed plate is fixed with to be supported with workstation sliding fit's slip, the upper portion of mould fixed plate is fixed with V type groove mould, L type slide is through setting up in the vertical regulation lead screw spiro union at L type slide riser top in the screw that supports the riser, on the riser of L type slide with support the relative position of riser locating hole and be equipped with the guide way respectively, L type slide is just spacing with the guide post that support riser locating hole matches through running through the guide way, it is fixed with the pivot to support through the pivot on the diaphragm of L type slide, the one side and the V type groove relative position of mould of this pivot are equipped with the emery wheel. The utility model discloses simple structure, convenient to use, work efficiency is high, and low in labor strength and grinding quality are stable.