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[CN 202011143787.9] A kind of welding method for cross beam on press machine tool
[CN 202011143787.9] Title of a tailor-welding method for crossbeams on a press machine tool: Application number of a tailor-welding method for crossbeams on a press machine tool: CN 202011143787.9 Applicant: Wode Precision (China) Co., Ltd. Application Date: 2020-10-23 Patent Type: Application for the Invention The present invention discloses a tailor-welding method for crossbeams on a press machine tool. The upper crossbeams include front plate assembly, rear plate assembly, crossbeam bottom plate bottom plate and upper cover; the specific welding method of the upper beam is modular assembly. The front plate and the rear plate are respectively assembled with the shaft sleeve, reinforcing rib and lifting lug to form two parts of the front plate assembly and the rear plate assembly. Then the bottom plate is used as the reference surface and spliced from bottom to top to form the frame of the upper beam. Finally, the cover plate is assembled to form a finished product to reduce the accumulated error and improve the assembly efficiency. Scattered welding shall be performed during welding of the upper beam, the welding method of welding the weld with groove after backing, adjusting the weld to the flat welding position by turning over for many times, and dispersing the welding heat to reduce the welding deformation; Measure the welding deformation of the shaft sleeve of the upper beam, and reserve the reverse deformation during assembly. The operation is simple and effective to ensure that the welded size meets the machining requirements. After welding, the upper beam is annealed to eliminate the welding residual stress, dimensional stability can be guaranteed.
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