Pump body clamp

The utility model discloses a pump body clamp which comprises a clamping panel. The positioning cylinder is provided with a bearing platform, one end of the positioning cylinder penetrates through the clamping panel and extends outwards to the bearing platform to abut against the clamping panel, and the bearing platform is movably and fixedly connected with the clamping panel; the at least three clamping pieces are circumferentially distributed at intervals by taking the center of the clamping panel as an axis, one end of each clamping piece is movably and adjustably mounted on the clamping panel, and the other end of each clamping piece is used for pressing a pump body; one supporting piece is installed beside each clamping piece, one end of each supporting piece is movably and adjustably installed on the clamping panel, and the other end of each supporting piece is supported against the corresponding clamping piece. The clamp has the advantages of being capable of clamping a pump body to be machined on a lo