Design and Development of Press Tool Changing Attachment on Automated Guided Vehicle

摘要

In the present work, a hydraulic scissors lift is developed to lift up to 300 kg load at a height of around one meter. This mechanism is specially designed for loading and unloading press tool dies by considering press machine shop where installation of Gantry cranes and use of forklift is not convenient. A simple attachment is also provided for pulling the die from bolster plate to the scissor lift platform. This whole arrangement is mounted on AGV. The objective of the present work is to design and develop a press tool changing attachment with minimum material, minimum overall cost and significant strength. Design calculations must not be exceeded standards, allowable maximum deflection and stresses. To analyze and validate manual calculations, solid modeling and computer simulations are involved using CATIA v5 R19 and Hypermesh 11.0 softwares. Number of linear static FEA analyses has done to get accurate results. From the results we can say that deflection is still in the acceptable range. The research highlights to reduce total idle time of press machine while die changing operation results in increased production rate. Number of trials are taken on the same model in press machine shop. Total time required for changing and remounting the die is reduced by approximately half an hour compared to existing method of press tool changing.