To simply manufacture a connecting fixture which eliminated deviation of a welding position.

A lower die 11 is movable back and forth. The lower face of the upper die 6 and the upper face of the lower die 11 are each provided with a cutting blade 21, 22 and a knurling blade 23, 24 in each opposing position. In addition, the lower face of the upper die 6 is provided with a chamfering blade 25. A round rod 29 is clamped between the upper die 6 and the lower die 11 and is rolled as the lower die 11 is moved. Then, cutting is performed by the cutting blade 22, 22, rolling of a knurling aeith the knurling blade 23, 24, and clamfering by the chamfering blade 25.