Welding fixture for catalytic component

The utility model relates to the field of clamps, in particular to a welding clamp for a catalytic assembly, which comprises a support mechanism, a clamping mechanism and a welding mechanism, the fixing mechanism is used for fixing the air inlet pipe group; the driving mechanism is connected to the fixing mechanism and located on one side of the supporting mechanism; the driving mechanism can drive the air inlet pipe set penetrating through the cylinder to move relative to the cylinder. The limiting piece is used for positioning the position where one end of the air inlet pipe set penetrates through the barrel. The air inlet pipe welding device has the effect of accurately welding and fixing the air inlet pipe. 本申请涉及一种用于催化组件的焊接夹具，涉及夹具领域，其包括：支撑机构，用于固定筒体；固定机构，用于固定进气管组；驱动机构，连接于固定机构并位于支撑机构的一侧；驱动机构能够带动穿设于筒体的进气管组相对筒体移动；限位件，用于定位进气管组的一端穿过筒体的位置。本申请具有能够准确焊接固定进气管位置的效果。