A method of manufacturing a bonnet hinge
A technology for engine covers and hinges, which is applied in the field of hinges, can solve the problems of low processing precision of hinges, achieve the effects of increasing the effective mating surface length, ensuring verticality, and improving riveting accuracy
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[0025] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other implementations obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.
[0026] The invention provides a method for manufacturing the hinge of the engine cover, which includes the following steps: S1, the steps of trimming, bending and shaping are sequentially performed on the plate for making the hinge to form a mating surface. S2, performing a punching step on the mating surface to form a first hole 1 . S3, performing a punching step on the first hole 1 with scraping material to form a second hole 2 with enlarged diameter. S4, pe...
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