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我厂生产的单层热压机,其框架板在焊接后产生变形,需要校正。由于框架板的厚度为90mm,我厂现用的压力机不能满足要求,所以决定自制一台大型液压校正机来满足生产的急需。但是,液压校正机其液压部分的柱塞是一个难加工的关键件,柱塞表面粗糙度 Ra 的最大允许值为0.8μm,其材料重超过2000kg,而我厂磨床最大加工能力是1000kg。经过认真的研
I plant the production of single-layer pressing machine, the frame plate deformation after welding, need to be corrected. Since the thickness of the frame plate is 90mm, the existing press in our factory can not meet the requirements, so we decided to make a large hydraulic calibrator to meet the urgent need of production. However, the plunger of the hydraulic part of the hydraulic calibrator is a difficult-to-machine key piece. The maximum allowable surface roughness Ra of the plunger is 0.8μm, the material weight is more than 2000kg, and the maximum machining capacity of our factory grinder is 1000kg. After careful research