Joint positioning device for connection of prefabricated combined calandria

The utility model discloses a connector positioning device for connecting prefabricated combined calandria, which relates to the technical field of connectors and comprises a base, a groove is arranged at the top of the base, and a first positive and negative tooth screw rod is rotatably mounted on the opposite inner walls of the groove. In the use process, two pipes are clamped and fixed through the arc-shaped clamping plate firstly, when the two pipes are fixed, the rack is unfixed through the fixing mechanism, then the large rotary knob is rotated, the large rotary knob rotates to drive the first positive and negative tooth lead screw to rotate, and the first positive and negative tooth lead screw enables the two pipes to be close to each other; then the rack is fixed through the fixing mechanism, so that connectors of the two pipes are conveniently aligned for connection, when connection is completed, fixation of the two pipes is relieved firstly, then fixation is relieved through the fixing mechanism, at