Method and apparatus for split sleeve cold expansion of openings in
structural members
    1.
    发明授权
    Method and apparatus for split sleeve cold expansion of openings in structural members 失效
    分体式套管冷膨胀结构件开口的方法和装置

    公开(公告)号:US5127254A

    公开(公告)日:1992-07-07

    申请号:US728195

    申请日:1991-07-10

    IPC分类号: B23P9/02

    CPC分类号: B23P9/025

    摘要: A split sleeve (S) is deposited into a sleeve loader (24, 24'), with a lower end of the sleeve (S) on a sleeve support surface (154). A mandrel (M) carried by a puller tool (10, 10') is inserted into the sleeve loader (24, 24'), and through the sleeve (S), to position the sleeve (S) on a small diameter portion (50) of the mandrel (M), and an end portion of the sleeve (S) within a nosepiece (12), against a sleeve end contacting surface (66). The tool (10, 10') is moved away from the sleeve loader (24, 24') to pull the mandrel (M) out from the sleeve loader (24, 24'). Then the mandrel (M) is inserted into an opening (16) in a workpiece (14). The tool (10, 10') is moved endwise to place the sleeve (S) within the opening (16) and a workpiece contacting end surface of the nosepiece (12) into contact with the workpiece (14). The tool (10, 10' ) is then operated to retract the mandrel (M). This moves first an increasing diameter portion (52) and then a maximum diameter portion (54) of the mandrel (M) axially through the sleeve (S). In response, the sleeve (S) is expanded radially to compress the material immediately surrounding the opening. Grip surfaces (158) on end portions of nosepiece fingers (78) grip the sleeve (S). Following retraction, the tool (10, 10') is moved away from the workpiece (14) and the sleeve (S) is pulled out from the opening (16).

    摘要翻译: 分离套筒(S)沉积到套筒装载机(24,24')中,套筒(S)的下端在套筒支撑表面(154)上。 由拉出工具(10,10')承载的心轴(M)被插入到套筒装载机(24,24')中,并通过套筒(S)将套筒(S)定位在小直径部分 心轴(M)的一部分(50)和套管(S)的端部在鼻梁(12)内,抵靠套筒端接触表面(66)。 工具(10,10')远离套筒装载机(24,24')移动以将心轴(M)从套筒装载机(24,24')拉出。 然后将心轴(M)插入工件(14)中的开口(16)中。 工具(10,10')被端部移动以将套筒(S)放置在开口(16)内并且工件接触端面(12)的端面与工件(14)接触。 然后操作工具(10,10')以缩回心轴(M)。 这首先使心轴(M)的直径增加的部分(52)和轴心(M)的最大直径部分(54)轴向移动穿过套筒(S)。 作为响应,套筒(S)径向膨胀以压缩紧邻开口的材料。 鼻甲指(78)的端部上的夹持表面(158)夹紧套筒(S)。 在缩回之后,工具(10,10')远离工件(14)移动,套筒(S)从开口(16)被拉出。