等重量刮研 过去机床大件的刮研通常是单独刮研后再总装,但总装后易产生变形。加T42100双柱座标镗床床身,总装后要承受一个工作台、两个立柱、一个横梁、两个主轴箱和一个顶梁的重量,结果使刮研精度很高的床身产生变形,精度达不到要求造成返工。针对这一问题,在列研机床大件时, Weight Scraping Research in the past, large-scale scraping machine is usually scratched and then separate the final assembly, but easy to produce after the assembly deformation. Plus T42100 double-column jig boring machine bed, after the assembly to withstand a table, two columns, a beam, two headstock and a roof beam weight, the result of the scraping of high precision bed deformation, accuracy Not meet the requirements resulting in rework. In response to this problem, in the research machine large,