The invention discloses a use method of a tooling for simultaneously
electroplating the inner and outer surfaces of a hydraulic oil cylinder. The use method comprises the following steps: first, a conducting column is put in the cylinder body of the hydraulic oil cylinder, and a bolt arranged on the lower end surface of the conducting column penetrates through a valve hole formed in the cylinder bottom of the hydraulic oil cylinder; then, an external thread ring sleeve is connected with an internal thread formed on the cylinder mouth of the hydraulic oil cylinder, and an insulating sleeve is connected onto the bolt; and finally, a lifting hook is hung on a
cathode bar of an
electroplating bath, the cylinder body of the hydraulic oil cylinder is placed in the
electroplating bath, and the conducting column is connected with the
anode of the electroplating bath through a lead wire. The use method disclosed by the invention has the advantages that a conventional process for electroplating a hydraulic oil cylinder with a
copper-
tin alloy is changed, so that the hydraulic oil cylinder
machining frequency and transfer frequency can be reduced, the hydraulic oil cylinder can be electroplated with the
copper-
tin alloy through one-step operation in an electroplating
production line, the hydraulic oil cylinder electroplating efficiency and
transfer efficiency can be improved by 50% or above, and the production cost can be reduced by about 30%; and meanwhile, the defect that the valve hole formed in the cylinder bottom of the hydraulic oil cylinder cannot be electroplated with the
copper-
tin alloy is overcome, and the product service life is prolonged.