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    • 24. 发明公开
    • Automatic tool changing machine
    • 自动换刀装置
    • EP0983810A3
    • 2001-06-06
    • EP99307045.7
    • 1999-09-03
    • Haeger, Inc.
    • Kelly, Rory T.Lane, Brian E.McDaniel, Dennis W.
    • B21J15/10B21J13/08B21J15/32
    • B21J15/32B21J15/10B21J15/36B23Q3/15526B23Q3/15573Y10T29/53387Y10T29/5343Y10T483/1729Y10T483/1731
    • The invention is a system for use in a single-anvil hydraulic press or compression system for automatically selecting and changing both the upper and lower tooling. The system is installed between the upper and lower compression anvils of a hydraulic press (21). The upper portion includes a set of holders for upper tools (27) and adjacent orientation structures or jaws. The upper tool holders and jaws are mounted on a horizontal member that may be moved such that one of the upper tools (27) is "selected" by being placed immediately below the upper anvil of the press (21). As part of this selection process, the anvil removes the tool from the selected holder, and holds it using pneumatic suction. Then the horizontal member shifts over so that the upper anvil is situated directly above the adjacent orientation structure for that tool. To switch to a different upper tool, the horizontal member again moves the (empty) holder below the upper anvil, whereupon the pneumatic suction is removed causing the tool to drop into the holder. The horizontal member then moves to the newly selected tool holder and removes the tool therefrom using the pneumatic suction. Then the horizontal structure shifts over so that the upper anvil is situated directly above the adjacent orientation structure for the newly selected tool. Available sets of tooling for the lower anvil are mounted in vertical orientation in pockets (41) on a movable belt (33) adjacent to the lower anvil. Rotation of the belt (33) moves the selected pocket (41) below a support bracket. Pneumatic pressure is used to push the lower tool (31) from the selected pocket (41) into the bracket. A slidable member on the bracket locks the lower tool (31) into place for use. To switch to a different lower tool (31), the slidable locking member is released, and the pneumatic pressure removed thereby allowing the lower tool in the bracket to fall into the waiting empty pocket (41). The belt (33) is rotated until the newly selected pocket (41) is below the support bracket. Then, the pneumatic pressure and the locking member are again used to move and lock the newly selected lower tool into place for use.
    • 27. 发明公开
    • Riveting device
    • 铆钉。
    • EP0194983A2
    • 1986-09-17
    • EP86850088.5
    • 1986-03-11
    • Atlas Copco Aktiebolag
    • Gidlund, Per Adolf LennartLa Fleure Zamore, John Adam
    • B21J15/14B21J15/36
    • B21J15/36B21J15/14
    • A riveting device for the assemblage of two or more sheet metal sections (A, B) of a structure comprising a working unit (1 4 ) operable on one side of the sections (A, B) to be assembled and a clamping and bucking unit (26) operable one the opposite side of the sections. Both units - (14, 26) comprise clamping means (16 and 31, 62, 72) respectively, by which the sections (A, B) are clamped together during the entire working cycle in each rivet position, i.e. during hole making, seal compound application, rivet insertion and rivet upsetting. The clamping means of the bucking unit (26) comprises a head (62; 90), one or more low inertia contact elements (72; 94) and a resilient impact absorbing means (66; 101, 102) provided between the contact element or elements (72; 94) and the head (62; 90). The combination of a low inertia contact element and a resilient impact absorbing means provides a solution to the problem of reducing the extremely high contact forces generated at each blow from the riveting tool between the clamping means on the bucking side and .the sheet metal sections (A, B). Deformation of the sections (A, B) due to such high forces is thereby avoided.
    • 28. 发明公开
    • Cavity rivet installation
    • Setzen von Hohlraumnieten。
    • EP0150955A2
    • 1985-08-07
    • EP85300275.6
    • 1985-01-16
    • AIR INDUSTRIES CORPORATION
    • Mosdale, Brian Eric
    • B21J15/02F16B19/08
    • B21J15/02B21J15/36F16B19/10
    • A cavity rivet (10) is installed using a tool (18) having a frustum shaped anvil portion (22) that deforms or upsets an annular wall forming the cavity (16) in the end of the rivet. The tool (18) also has an anvil pin (20) that is inserted into the rivet cavity (16) to prevent the deformed material from entering the cavity (16) while the frustum (22) deforms the rivet material. This forces the deformed material to take the shape directed by an anvil head portion (22) surrounding the frustum (22). Controlling the force which the anvil pin (20) exerts on the rivet cavity (16) and controlling the size of the cavity (16) in the rivet (10) limits the expansion of the rivet shank (15) as the deformed rivet head (13) is formed.
    • 使用具有截头锥形的砧座部分(22)的工具(18)来安装空腔铆钉(10),所述平截头体形状的砧部分使铆钉的端部形成形成空腔(16)的环形壁变形或紊乱。 工具(18)还具有插入铆钉腔(16)中的砧座销(20),以防止变形的材料进入空腔(16),而平截头体(22)使铆钉材料变形。 这就迫使变形的材料采取导向的形状(通过围绕平截头体(22)的砧头部分(22))。控制砧销(20)施加在铆钉空腔(16)上的力并控制 当形成变形的铆钉头(13)时,铆钉(10)中的空腔(16)限制铆钉柄(15)的膨胀。