Tunnel embedded channel welding positioning mechanism

The utility model discloses a tunnel embedded channel welding positioning mechanism which comprises a plurality of supports arranged in parallel, a plurality of positioning plates arranged on the supports, moving on the supports and used for supporting channels, and end plates arranged at the ends of the supports and used for positioning the ends of the channels. Clamping grooves used for clamping the channels are formed in the positions, corresponding to the supports, of the upper end of the positioning plate. During welding, firstly, the end of the embedded channel is placed on the support and makes contact with the end plate, the middle position of the channel is clamped in the clamping groove, accurate positioning is carried out, after positioning, the channel is welded and fixed through steel bars, and after welding is completed, the embedded channel is taken out of the tool. One person can position the embedded channel of the tunnel, and operation is easy and convenient. And meanwhile, by using the tool