15-year precision mould making

     Material of each part of the mould, dimensional tolerance, form tolerance, surface roughness and heat treatment should be in accordance with the requirements of the drawings.
     Technical requirements: upper and lower mold seat be use for installing the guide column, the guide sleeve, the convex mold concave mold fixing plate, etc.. The upper plane and the lower plane of the stamping mold holder are to be kept parallel, the parallelism error does not exceed the prescribed value. The position of the mounting hole of the guide sleeve is consistent, and the hole must be vertical with the bottom surface.
     Three technical indexes of formwork should be to achieve a prescribed accuracy level. The three technical indicators are, 1, Parallelism between the upper plane of upper die holder and the lower plane of lower die holder. 2, Vertical between the axis line of guide pillar and the lower plane of lower die holder. 3, Vertical between the guide sleeve hole axis and the upper plane of upper die holder.
     On the mold base along the guide column on the move should be smooth, no obstruction. Mold closing height should be in accordance with the requirements of the drawings.
     The axial line of shank and upper die base plane perpendicularity tolerance is not greater than 0.05mm in the context of full length.
     The fit clearance between the punch and the die should be in accordance with the requirements of the drawings and the gap should be uniform. Stamping parts should be in accordance with the requirements of the drawings.
     In order to ensure the verticality of the core pins and sleeves, should first processing under the plane, and then processing the hole. In order to ensure the location of the upper and lower mold seat hole, you can put the two blocks together to process. Or the biaxial boring machine to machine.