装载机前后车架的铰接是总装配的一道关键工序。通常的装配方法是将后车架放在钢架上,然后用桥式起重机吊起前车架并与后车架铰接。这种装配方法的全过程需要占用一台桥式起重机,用手势指示调节前车架的位置,劳动强度大、费工费时。且因前车架处于起吊柔性状态,导致前后车架铰接孔对位很难控制,直接影响装配质量。为此,我们设计了一台前后车架铰接装配台架(见附图)。该台架由后支架、中支架和小 The articulation of the front and rear wheel loaders is a key part of the total assembly. The usual method of assembly is to place the rear frame on a steel frame and then lift the front frame with a bridge crane and articulate it with the rear frame. The whole process of this assembly method needs to occupy an overhead crane, and the position of the front frame is adjusted with gestures to indicate that the labor intensity is large and time-consuming and laborious. And because the front frame is in a flexible state of lifting, it is difficult to control the hinge holes of the front and rear frames, which directly affects the assembly quality. To this end, we have designed a front and rear frame hinged assembly bench (see photo). The gantry consists of a rear bracket, a middle bracket and a small one