Stretching clamp for testing surface viscosity of prepreg

The invention belongs to the technical field of composite material manufacturing, and particularly relates to a tensile fixture for testing prepreg surface viscosity, which comprises a base, a guide assembly and a traction assembly. The guide assembly comprises a guide seat and two guide round rollers which are arranged in parallel at an interval, the guide seat is fixedly connected to the base, and the guide round rollers are arranged at one end of the base; and an interlayer is arranged in the guide seat and is used for accommodating the prepreg. The traction assembly comprises two chucks and a traction head which are located on the two sides of the guide base respectively, and the chucks are slidably connected with the base. The prepreg penetrates through a gap between the two guide round rollers, and is fixed on the two chucks after being stripped; the traction head is arranged at the other end, away from the guide round roller, of the base, the two chucks are connected with the traction head, and the tra