Circuit board patch correction device

The circuit board patch correction device provided by the utility model is simple in design structure, can support a circuit board through a plurality of supporting pads, can conveniently clamp, correct and fix the circuit board, avoids deviation of the circuit board during processing, can adapt to correction and fixation of circuit boards with different sizes by adjusting the distance between the two clamping plates, and is convenient to use. The device comprises a mounting plate, mounting pieces are fixedly arranged on the two sides of the mounting plate, the mounting plate is of a U-shaped structure, two sliding grooves are formed in the inner wall of the bottom of the mounting plate, a same through hole is formed between the two sliding grooves, a same two-way screw rod is rotationally mounted in the through hole through a bearing, and the directions of threads at the two ends of the two-way screw rod are opposite; moving blocks are in threaded connection with the two ends of the two-way screw rod, clampi