One-mold multi-pass formed metal plate machining method

• Main Authors: PAN XIN, SONG AJUAN, JIANG YICHEN, YUE YU, CHEN BAOGUO, SONG BO, AN QIUXIAN, DING YAFENG
• Format: Patent
• Language: Chinese; English
• Published: 05.04.2019
• Subjects: MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PUNCHING METAL; TRANSPORTING; WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL

The invention provides a one-mold multi-pass formed metal plate machining method which is used for machining skin parts, provided with the step structure, in aeronautical parts. The method comprises the steps that a, a plate is put on two lower mold sets; b, the relative positions of a plurality of upper mold blocks of an upper mold set till the multiple mold blocks of the upper mold set make contact with the plate; c, the upper mold set moves downwards, and the position, between the two lower mold sets, of the plate is bent and deformed; d, the plate is moved by the feeding distance, the stepb and the step c are repeated till bending and deformation, in the feeding direction, of the plate meet the final shape requirement; and e, the plate is taken out, and forming is completed. 本发明提供种单模多道次成形的钣金加工方法，其用于加工航空零件中带台阶结构的蒙皮零件，包括步骤：a.将板料放置到两个下模具组上；b.调整上模具组的多个上模具块的相对位置，直到上模具组的多个上模具块分别接触板料；c.上模具组下行，使得两个下模具组之间的板料弯曲变形；d.将板料移动进给距离，重复步骤b和c，直至板料沿进给方向的弯曲变形满足最终形状；以及e.取出板料(2)，成形结束。