Adjustable multifunctional welding test piece X-ray flaw detection positioning detection device

The utility model discloses an adjustable multifunctional welding test piece X-ray flaw detection positioning detection device. Comprising a detection table base, a plurality of positioning mechanisms are arranged on the detection table base in a sliding mode, each positioning mechanism comprises a stand column, a lower support positioning assembly and an upper support positioning assembly, each lower support positioning assembly comprises a sliding sleeve arranged on the corresponding stand column in a sleeving mode and a plane supporting plate connected with the sliding sleeve through a cross beam, and each plane supporting plate is provided with a spring clamping plate and a baffle; the upper support positioning assembly comprises a rotary supporting plate, supporting columns and a pipe clamping device, the rotary supporting plate is obliquely arranged and hinged to the stand column, the supporting columns are arranged on the two sides of the rotary supporting plate, an inner sliding rod and an outer slidi