Manufacturing process of motor inner rotor

The invention discloses a manufacturing process of an inner rotor of a motor. The manufacturing process comprises the following steps: step 1, feeding; step 2, punching a process groove a; step 3, punching a process groove b; step 4, punching a process groove c; 5, punching a process groove d, and enabling all the process grooves to be communicated with one another to form a process groove group; step 6, punching a shaft hole; step 7, blanking; 8, combining: gathering the N tooth blocks towards the distribution center, and combining to form an inner rotor iron core; and step 9, winding: the tooth blocks in the inner rotor iron core are pulled outwards in the radial direction one by one and are not completely separated from the inner rotor iron core, winding is carried out on the pulled tooth blocks, and the tooth blocks are reset after winding until winding of all the tooth blocks is completed, so that an inner rotor finished product is formed. The production efficiency of the motor inner rotor is greatly imp