液壓機由于其構成件尺寸大、重量重，受鑄造、鍛造、切削加工、裝配等各種工藝條件的限制，所以壓機本身的工作精度不可能完全靠機械加工本身來保證，而必須經過組裝過程中的調整來達到其各項精度指標。
Because the hydraulic press has large size and heavy weight, and is limited by casting, forging, cutting, assembling and other technological conditions, the working accuracy of the press itself can not be entirely ensured by the mechanical processing itself, but must be adjusted in the assembly process to achieve its various accuracy indicators.
調整是根據INA軸承精度檢測的具體要求進行操作的，而精度的保持和穩(wěn)固則要靠與之相關的預緊和防松手段及措施來保證。各行各業(yè)所使用的液壓機，因其用途不同對其工作精度要求也各異，在生產制造中也沿用不同的行業(yè)標準。在同一行業(yè)由于生產產品不同，要求的精度也不可能一致。所以同一行業(yè)標準中按不同工作狀況又分為若干等級而相對應各精度指標。工廠生產中由技術部門按生產壓機的精度標準編制檢驗大綱和試車大綱，下發(fā)有關部門作為指導性文件，其中規(guī)定有關項目和參數的檢測方法及相應數據，作為安裝調整及檢查驗收的標準。
Adjustment is carried out according to the specific requirements of INA bearing accuracy testing, and the accuracy of the maintenance and stability depends on the relevant pre-tightening and loosening measures and measures to ensure. Hydraulic presses used in all walks of life have different requirements for their working accuracy because of their different uses, and they also follow different industry standards in production and manufacturing. In the same industry, because of different production products, the accuracy of requirements is also not consistent. Therefore, according to different working conditions, the same industry standard is divided into several grades, corresponding to each accuracy index. In factory production, the Technical Department compiles the inspection outline and the test run outline according to the precision standard of the production press, and issues the relevant departments as the guiding documents, which stipulates the test methods and corresponding data of the relevant items and parameters, as the standards for installation, adjustment, inspection and acceptance.
一般都包括需在裝配INA軸承過程中經調整才能達到的精度項目。如在液壓機中對工作臺的水平度、柱距偏差、工作臺及活動工作臺的平面度、立柱與其連接的上下橫梁的垂直度、各工作臺間的平行度、主油缸在工作行程內與工作臺的垂直度、立柱與上下橫梁連接的內外螺母貼合面的接觸率等。 INA軸承精度調整和檢測的過程和結果，要經專職人員首肯簽章方可通 過。檢測調整過程中所需用的工具和工裝在生產進行中由對口專業(yè)工藝人員設計后按計劃編入生產流程。檢驗大綱及檢測調整操作省略。
Generally it includes the accuracy items that need to be adjusted in the process of assembling INA bearings. For example, in hydraulic press, the horizontal degree of worktable, column distance deviation, worktable and movable worktable flatness, vertical degree of column and its connecting upper and lower beams, parallelism between workbenches, the vertical degree of main cylinder and workbench in the working process, the contact rate of column and upper and lower beams connecting inner and outer nuts. Wait. The process and result of INA bearing accuracy adjustment and detection must be approved by the full-time staff. The tools and tools needed in the process of inspection and adjustment are designed by the corresponding professional technicians and programmed into the production process according to the plan. Inspection outline and inspection adjustment operation omitted.