Telescopic sliding rail mechanism of working arm

The invention discloses a working arm telescopic sliding rail mechanism which comprises a large arm assembly, a sliding oil cylinder and a working platform, the large arm assembly comprises a front guide rail, the working platform is connected with a sliding rail through a connecting plate, the connecting plate is fixed to the sliding oil cylinder, and the sliding oil cylinder, the sliding rail and the working platform are firmly fixed to the front guide rail. The connecting plate and the front guide rail face are connected with a third sliding block, and vertical sliding of the whole mechanism is achieved through vertical movement of the sliding oil cylinder. According to the working arm telescopic sliding rail mechanism provided by the invention, through ingenious sliding rail layout design, each mechanical structure can freely slide up and down, so that the stroke and the flexibility of up-and-down movement of the working platform are greatly improved. 本发明公开了一种工作臂伸缩滑轨机构，包括大臂总成、滑动油缸、工作平台，所述大臂总成包括前导轨，所述工作平台通