Sealing element pressing tool

The utility model provides a pressing tool for a sealing element, and belongs to the technical field of sealing element detection equipment. The problem that an existing sealing element detection device is not suitable for workpieces subjected to rough machining is solved. The utility model discloses a pressing tool for a sealing element. The pressing tool comprises a bottom plate, a pressing plate, a connecting rod, a pressurizing assembly and a workpiece. According to the utility model, when air tightness detection is carried out on a workpiece after rough machining, people need to place the workpiece on the chassis and cover the top of the workpiece with the pressing plate, and then the pressing plate and the bottom plate are connected together through the plurality of connecting rods, so that extrusion force is formed between the pressing plate and the bottom plate; therefore, the workpiece is prevented from dislocation and movement between the pressing plate and the bottom plate, and then the workpiece i