2results about How to "Meet welding process requirements" patented technology

The invention relates to the technical field of pipeline welding, and discloses a pipeline internal welding machine partition tensioning device and a pipeline internal welding machine. The partition tensioning device comprises a partition tensioning mechanism and a power mechanism; the partition tensioning mechanism comprises a mounting main body and a plurality of ejector rod tensioning shoe assemblies connected to the mounting main body, the ejector rod tensioning shoe assemblies are arranged in pairs in the annular direction of the mounting main body, and each pair of ejector rod tensioning shoe assemblies are arranged in the axial direction of the mounting main body; the power mechanism is connected with the multiple ejector rod expansion shoe assemblies and is configured to drive at least one ejector rod expansion shoe assembly to stretch out and draw back every time. According to the partition tensioning device of the pipeline internal welding machine, the pipe opening assembling efficiency can be improved, and then the construction efficiency of pipeline automatic welding is improved.

The utility model discloses a direction handle pipe welding clamp, including frame body, with bottom plate, top plate and the symmetrical setting between bottom plate, top plate's side plate, upper pressure pincers are connected in top plate upper end, and act on the outer wall of main pipe piece medium section, and side pressure pincers are connected to the outside of side plate in a certain angle symmetry, and side pressure pincers are used for clamping the end of main pipe piece, and main support is symmetrically arranged in the both sides of upper pressure pincers and is connected with top plate upper end, and the notching that is suitable for main pipe piece is set up on main support, the utility model discloses upper pressure pincers, side pressure pincers and main support can be effectively clamped fixed to the special appearance structure of main pipe piece, and it is favorable for the welding operation of subsequent robot, because the limiting gap and the positioning pin that place the welding piece are arranged in main support, when welding, operating personnel can place the welding piece in the predetermined position of main pipe piece side portion conveniently and quickly.