Clamp of process pipe pressing device

The utility model discloses a clamp of a process pipe pressing device, which comprises a pressing device I, a pressing device II and a pressing device III, and the pressing device I and the pressing device III are respectively arranged on two sides of the pressing device II. Wherein a first clamp set is arranged on the first pressing device, a second clamp set is arranged on the second pressing device, a third clamp set is arranged on the third pressing device, and the first clamp set is composed of a first upper clamp and a first lower clamp; the second clamp set is composed of a second upper clamp and a second lower clamp. The third clamp set is composed of a third upper clamp and a third lower clamp. All parts of the silencer assembly can be fixed before being pressed through the arranged clamps, the first clamp set can fix a silencing cavity cover, the second clamp set can fix a silencing bag, the third clamp set can fix an exhaust pipe, the silencer assembly is fixed through the clamps, it is guaranteed