Heat treatment shaping process for contact spring

The invention discloses a heat treatment shaping process for a contact spring. The heat treatment shaping process comprises the following steps: S1, loading the contact spring into a heat treatment shaping tool; the thermal expansion coefficient of the material of each part of the heat treatment shaping tool is the same as or similar to that of beryllium bronze; s2, the heat treatment shaping tool provided with the contact spring piece is put into a vacuum furnace to be subjected to heat treatment; s3, performing hardness detection on the contact spring subjected to heat treatment, and performing flatness detection on the contact spring by utilizing a screening tool; a square hole is formed in the screening tool, and the height of the square hole is matched with the thickness of the contact spring; if the contact spring can freely pass through the square hole, the flatness of the contact spring is qualified, and the qualified contact spring is electroplated with Cu/Ep.Cu1Ni2Au1hd; and S4, repairing the contac