Cast iron piston pin hole processingequipment

The utility model belongs to cast iron piston pin hole processing field especially relates to a cast iron piston pin hole processingequipment, including a supporting bench, be provided with boring cutter device and clamping device on a supporting bench, set up first shifting block and second shifting block in its clamping device, its second shifting block diameter is measure -alike with cast iron piston inner cavity to can realize with the hang down straightness of shifting block location assurance pinhole with the home record terminal surface, fixed mode recycle the tight top land recess in first shifting block top on the pneumatic on -off control cylinder, and then fixed piston is processed with second shifting block location piston inner cavity, the utility model discloses replace original boring machine, accomplished three above processes such as drilling, half rough bore, rough bore, on the basis of having ensured the product precision, both saved the boring machine, saved working time again, still impro