Bolt tightening equipment for engine tile cover

The utility model discloses bolt tightening equipment for engine tile covers, relates to the field of engine assembling equipment, and can solve the problem that in the prior art, tightening equipment cannot tighten bolts on tile covers of engines of different models at the same time. The engine comprises a cylinder body and a plurality of tile covers connected to the cylinder body, the two sides of each tile cover are connected to the cylinder body through bolts, the virtual connecting line of the middle positions of the tile covers is a straight line, and the engine comprises a rack, a bolt tightening part, a conveying assembly and a fixing assembly. The bolt tightening part comprises a supporting plate, two tightening assemblies connected to the supporting plate, two driving assemblies connected to the supporting plate and used for driving the tightening assemblies to do linear reciprocating motion, and a lifting assembly connected to the rack and used for driving the supporting plate to be close to the co