Designed a compliant manipulator device to cut shrimp head, and used the flexible deformation materials to complete the trajectory. It is proved the best by experiments that the knife went along the trajectory from the back force of shrimp to head. Not only can achieve the best results, but also gains access to a higher headless shrimp yield and good sensory quality. Three dimensional modeling was conducted by using Solidworks software, and the motion simulation by ADAMS software, Through the manufacture and experiments of the compliant manipulator, the headless shrimp yield was improved to 70.78%. The device was simple and convenient, and can realize deheading shrimps by mechanization processing.

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