江南What are the factors that affect the accuracy of electronic connector terminals

The accuracy of electronic connector terminals is a key factor in determining the stability of connector signal transmission. It is mainly affected by three aspects: mold size accuracy, mold alignment accuracy, and punching machine equipment accuracy. Specifically, the terminal accuracy we refer to includes dimensional accuracy, shape accuracy, and positional accuracy.

(1) Dimensional accuracy

Dimensional accuracy refers to the degree to which the actual size of a terminal is close to the ideal size, commonly represented by dimensional tolerances. The larger the tolerance number, the lower the dimensional accuracy. The smaller the tolerance, the higher the dimensional accuracy.

(2) Shape accuracy

Shape accuracy refers to the degree to which the actual shape of the terminal is close to the ideal shape. Shape tolerances include six types: straightness, flatness, roundness, cylindricity, line profile, and surface profile.

(3) Position tolerance

Position tolerance refers to the degree to which the actual positional wall between the surface, axis, or symmetry of a terminal is close to the ideal positional fit. Terminal position tolerances include eight types: parallelism, verticality, inclination, coaxiality, symmetry, positional tolerance, circular runout, and full runout.