Universal type graphite furnace cathode frame

The invention discloses a universal type graphite furnace cathode frame. The universal type graphite furnace cathode frame comprises a cathode box, a cathode back, a supporting part, a lead screw, adjusting nuts and a cathode box support strut, wherein one end of the cathode back penetrates through a through hole of the cathode box and is vertically connected with the cathode clamp row, and the lower end of the cathode clamp row is connected with a cathode; the supporting part is arranged above the cathode box, and the supporting part is provided with a lead screw hole; the screw rod is connected with the lead screw hole in a matched mode, the two ends of the lead screw are connected with fixing rods, and the fixing rods are fixedly connected with the cathode back; the two adjusting nuts sleeve the lead screw, and the adjusting nuts are adjacently arranged on the left side and the right side of the supporting part; and the upper end of the cathode box strut is connected with the cathode box. The lead screw can move leftwards or rightwards by twisting the adjusting nuts, and the cathode is driven to move left and right through the cathode clamp row, so that the position adjustment between the cathode and an anode is realized, the movement of the cathode frame in the horizontal direction is more mechanized, manpower and material resources are saved, damage to the cathode caused by the moving process is avoided, and the universal type graphite furnace cathode frame has good application prospect and practical value.