Method for guaranteeing size of inner wall of box body through positioning pins

• Main Authors: JIN XIN, LUO ZHEN, YANG KUN, LIU CHUNWEI, LIU HONGLIANG, ZHOU XIAOJUN, HE JUNJIE, LIU YONGSHE
• Format: Patent
• Language: Chinese; English
• Published: 28.06.2024
• Subjects: COMBINED OPERATIONS; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; OTHER WORKING OF METAL; PERFORMING OPERATIONS; TRANSPORTING; UNIVERSAL MACHINE TOOLS

The invention discloses a method for ensuring the size of the inner wall of a box body through positioning pins, and the accuracy of the size of the inner wall of the box body after assembly and welding is realized by drilling pin holes in an upper panel, a lower panel and a vertical plate and utilizing the close fit of a pin shaft and the pin holes. Round notches and process ribs are prefabricated in the blanking process of the upper panel and the lower panel, so that an alignment reference is provided, and deformation of the notches in the welding process is reduced; the perpendicularity of the vertical plates and the panels is guaranteed by machining the inner wall side end faces of the upper panel and the lower panel, and therefore the accuracy of the inner wall size is guaranteed; the pin holes are machined on the upper panel and the lower panel by taking the central point P of the circular notch as a unified alignment reference, so that the coaxiality of the pin holes after the upper panel and the lower