Brick holding chuck mechanism

The embodiment of the invention discloses a brick holding chuck mechanism. The brick holding chuck mechanism comprises a chuck top cover and two sets of clamping arm assemblies arranged on the left side and the right side of the chuck top cover correspondingly, a supporting framework is arranged below the chuck top cover, and the middle of each clamping arm assembly is arranged on the supporting framework through a pin shaft. A hydraulic cylinder is arranged on the chuck top cover, and the front end and the rear end of the hydraulic cylinder are connected with the tops of the clamping arm assemblies on the two sides correspondingly. Clamping arm baffles are arranged on the lower half portions of the clamping arm assemblies, clamping block fixing plates are arranged at the bottoms of the clamping arm assemblies, and an angle is formed between each clamping block fixing plate and the face of the corresponding clamping arm baffle. The hydraulic cylinder drives the clamping arm assemblies to rotate around the pin