Automatic hydraulic clamp for measuring shearing strength

The invention discloses an automatic hydraulic clamp for measuring shearing strength, belongs to the field of composite material testing and aims to provide the automatic hydraulic clamp which is convenient for mounting and replacing splines and can automatically center the splines. The clamp comprises an upper clamp body and a lower clamp body, and fixed ends are arranged on the upper clamp bodyand the lower clamp body; one end of a sample strip is fixed through a first lower pressing block and a second lower pressing block, and the other end of the sample strip is fixed through a first upper pressing block and a second upper pressing block; the first lower pressing block is fixedly connected with the lower clamping body, the second lower pressing block is fixedly connected with a pistonof the lower jack, the first upper pressing block is fixedly connected with the upper clamping body, and the second upper pressing block is fixedly connected with a piston of the upper jack. An embedding part for embedding th