Workpiece clamping mechanism and friction stir additive manufacturing device

• Main Authors: ZHU XIAOTENG, LIANG KAIMING, CHANG ZHILONG, ZHANG HUA, JIANG BINGXIN, LI HUICHAO, LI ZHIHANG, TAO HUWEI
• Format: Patent
• Language: Chinese; English
• Published: 14.11.2023
• Subjects: ADDITIVE MANUFACTURING TECHNOLOGY; ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; TRANSPORTING; WELDING; WORKING BY LASER BEAM

The invention provides a workpiece clamping mechanism and a friction stir additive manufacturing device, relates to the technical field of solid-phase additive manufacturing, and solves the technical problem of low production efficiency caused by difficulty in positioning a base material with a curved surface during additive machining. The workpiece clamping mechanism comprises at least two supporting frames which are arranged at intervals in the horizontal direction and used for clamping a base material. Each supporting frame is at least provided with two telescopic rods, the telescopic rods are arranged in a vertical plane in a telescopic mode, the telescopic end of each telescopic rod is rotationally connected with a rolling part, when a base material is clamped between the two supporting frames, the rolling parts can abut against the curved surface of the base material, and all the rolling parts clamp the base material wound with the additive pieces from the periphery of the base material. The workpiece c