The invention relates to a method for manufacturing a pole coil, which is characterized by comprising the following steps of: (1) firstly, installing a clamping / positioning device on a
brazing machine; (2) then, installing a
soldering lug between craters of two
copper bars, and operating a
handle so as to enable a pressure head to be pressed against and then welded on the
copper bars; (3) adjusting the position of the pressure head so as to keep the pressing force to be in a tendency of an equilibrium state; and (4) finally, electrifying a high-frequency induction power of the high-frequency
brazing machine so as to enable an
inductance coil to induce and heat the craters and the
soldering lug of the
copper bars, and keeping the pressing force for three to five seconds, then after the
soldering lug is solidified, starting up the clamping / positioning device so as to complete the manufacturing of the pole coil. The method provided by the invention has the advantages that the defects of turn-to-turn faults and the like caused by uneven dissolved silver soldering lugs and poor soldering existing in the process of
welding the copper bars are overcome, and the efficiency and quality of
welding are improved; after the crater is processed by a pressing mechanism, the quality of the crater is good; meanwhile, the method also has the advantages of improving the
utilization rate of materials, expanding the range of design size, reducing the
unit cost, achieving the purpose of accurately
machining workpieces, and effectively solving the problem of
machining quality of a large four-head
welding pole coil.