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    • 4. 发明授权
    • Method of changing die assemblies for press machine
    • 更换压机机组的方法
    • US4866974A
    • 1989-09-19
    • US125163
    • 1987-11-25
    • Motoatsu ShiraishiKen TazouMasaru SasagawaMitsuki NakamuraRyoichi Kageyama
    • Motoatsu ShiraishiKen TazouMasaru SasagawaMitsuki NakamuraRyoichi Kageyama
    • B21D37/04B21D37/14B21D43/05
    • B21D37/14B21D43/055B21D43/057
    • A press machine includes at least one mobile bolster movable with respect to the press machine, a plurality of die assemblies mounted on the mobile bolster and arranged in a row, a plurality of handling bars disposed in retracted positions between the die assemblies and movable, when one pressing cycle is completed, for gripping and transferring a plurality of workpieces successively through the die assemblies, and a plurality of handling bar gripping devices disposed in the retracted positions closely to the opposite sides of the side assemblies. A method of changing die assemblies comprises the steps of moving the mobile bolster out of the pressing machine, tilting the handling bar gripping devices away from the die assemblies, carrying the die assemblies away from the mobile bolster, carrying new die assemblies onto the mobile bolster in an order opposite to that in which the die assemblies were carried away from the mobile bolster, and returning the tilted handling bar gripping devices to upstanding positions after the new die assemblies are carried onto the mobile bolster.
    • 压力机包括至少一个相对于压力机可移动的移动垫片,多个模具组件,其安装在移动式摇枕上并排成一列,多个处理杆设置在模具组件之间的缩回位置,并且可移动 完成一个按压循环,用于相继地通过模具组件夹持和传送多个工件,以及多个处理杆夹持装置,其设置在紧靠侧组件的相对侧的缩回位置。 一种改变模具组件的方法包括以下步骤:将移动支架移出压力机,将操纵杆夹紧装置倾斜离开模具组件,使模具组件远离移动垫片,将新的模具组件携带到移动支架上 其顺序与将模具组件从可移动垫片上移走的顺序相反,并且在将新的模具组件运送到移动支架上之后将倾斜的处理杆夹紧装置返回到直立位置。
    • 6. 发明授权
    • Method for producing wheel rim
    • 轮辋生产方法
    • US4985993A
    • 1991-01-22
    • US522809
    • 1990-05-11
    • Nagatada YagiMotoatsu ShiraishiShizuo KimuraYukihisa WatanoMitsuki NakamuraShinji Shinozawa
    • Nagatada YagiMotoatsu ShiraishiShizuo KimuraYukihisa WatanoMitsuki NakamuraShinji Shinozawa
    • B21D53/30
    • B21D53/30Y10T29/49529Y10T29/49531
    • A method for producing a wheel rim of an automotive vehicle comprising the steps of supporting a cylindrical body on a vertical axis between an upper punch attached to an upper mold and a lower punch attached to a lower mold; fitting a side die to an outer peripheral surface of the cylindrical body, with the cylindrical body supported; then lowering the upper punch together with the upper mold to insert the upper punch into an upper portion of the cylindrical body and to form the upper end portion of the cylindrical body into the flange portion by press forming between the upper punch and the side die; thereafter releasing the cylindrical body from the supported state at its lower end surface; and further lowering the upper punch together with the side die and the cylindrical body to insert the lower punch into a lower portion of the cylindrical body and to form the lower end portion of the cylindrical body into the flange portion by press forming between the lower punch and the side die, whereby the working steps can be reduced in number.
    • 一种用于制造机动车辆的轮辋的方法,包括以下步骤:在连接到上模的上冲头和附接到下模的下冲头之间的垂直轴上支撑圆柱体; 将侧模装配到圆柱体的外周表面,其中支撑圆柱体; 然后与上模一起降下上冲头,将上冲头插入圆柱体的上部,并通过上冲头和侧模之间的冲压成型将圆柱体的上端部分形成凸缘部; 然后在其下端表面从支撑状态释放圆筒体; 并且与侧模和圆筒体一起进一步降低上冲头,以将下冲头插入圆柱体的下部,并且通过在下冲头之间的冲压成形将圆筒体的下端部形成凸缘部 和侧模,从而可以减少工作步骤的数量。
    • 7. 发明授权
    • Transferring apparatus for transfer press
    • 转移装置用于传送压力
    • US5159827A
    • 1992-11-03
    • US686458
    • 1991-04-17
    • Motoatsu ShiraishiTatsuo NagamitsuMitsuki Nakamura
    • Motoatsu ShiraishiTatsuo NagamitsuMitsuki Nakamura
    • B21D43/05
    • B21D43/055B21D43/052B21D43/057
    • A transferring apparatus for a transfer press machine which includes a plurality of working stations disposed in a work-transferring direction and provided with lower dies and upper dies cooperating to press workpieces, so that the workpieces are sequentially transferred between the working stations. A plurality of sets of pairs of left and right carriages are associated with one of the working stations. The spacings between adjacent twos of the sets of the carriages are adjusted in said transferring direction during operation. At least one cross bar is mounted to extend between the left and right carriages of each set and has suction cups mounted on an intermediate portion thereof for holding the workpiece. The cross bar is cyclically movable in the transferring direction and in a vertical direction. A pair of left and right guide bars vertically movably are mounted to extend along opposite sides of the working stations to provide the cyclic motion of the cross bar. A pair of left and right feed plates are supported on the guide bars for movement in the transferring direction. The structure for adjusting supports the carriages on said feed plates so that their positions can be adjusted. Alternatively, feed plates are supported for movement in the transferring direction on a pair of left and right guide bars which are fixedly mounted to extend along opposite sides of the working stations to provide the cyclic motion of the cross bar. The carriages are supported on the feed plates respectively so that their positions can be adjusted with the cross bar being vertically movably supported on said carriages.
    • 一种用于转印压力机的转印装置,包括沿工作传送方向设置的多个加工工位,并设置有下模和上模,所述下模相互配合以压紧工件,使得工件在工作台之间顺序地转移。 多组成对的左右车厢与一个工作站相关联。 在操作期间,在所述传送方向上调整所述滑架组的相邻两个之间的间隔。 安装至少一个横杆以在每组的左和右滑架之间延伸,并且具有安装在其中间部分上的用于保持工件的吸盘。 横杆可以在传送方向和垂直方向上循环移动。 垂直可移动的一对左右导杆安装成沿着工作台的相对侧延伸以提供横杆的循环运动。 一对左右进给板支撑在导杆上,用于沿传送方向移动。 用于调节的结构支撑所述进给板上的托架,使得它们的位置可以被调节。 或者,馈送板被支撑成在一对左右导杆上沿传送方向运动,固定地安装成沿工作站的相对侧延伸以提供横杆的循环运动。 托架分别支撑在进给板上,使得它们的位置可以被调节,横杆可垂直地可移动地支撑在所述托架上。
    • 8. 发明授权
    • Method for withdrawing workpiece from drawing mold
    • 从绘图模具中取出工件的方法
    • US5148697A
    • 1992-09-22
    • US687348
    • 1991-04-18
    • Motoatsu ShiraishiTatsuo NagamitsuMitsuki Nakamura
    • Motoatsu ShiraishiTatsuo NagamitsuMitsuki Nakamura
    • B21D43/05
    • B21D43/055B21D43/052
    • A path for retreating movement of a cross bar from a standby position between a drawing mold and a mold of the next step to the drawing mold for holding the workpiece drawn by the drawing mold and a path for advancing movement of the cross bar holding the workpiece to the mold of the next step are formed into an upwardly smoothly curved line, and raising of a blank holder for the drawing mold is stopped temporarily for a period until the workpiece is discharged from the drawing mold by the cross bar. The paths for movement of the cross bar includes no suddenly turning portion and hence, any vibration of the cross bar due to an inertia force is prevented. Even if the paths for movement of the cross bar associated with all the molds are established in the same form, it is avoided that the cross bar or the workpiece interferes with the blank holder in the drawing mold.
    • 用于将拉杆从拉拔模具和下一步骤的模具之间的备用位置移动到用于保持由拉拔模具拉出的工件的拉伸模具和用于使保持工件的横杆前进运动的路径的路径 到下一步骤的模具被形成为向上平滑的曲线,并且用于拉伸模具的坯料保持器的升高暂时停止一段时间,直到工件通过横杆从拉拔模具排出。 横杆的移动路径不包括突然转动部分,因此防止由于惯性力引起的横杆的振动。 即使与所有模具相关联的横杆的移动路径以相同的形式建立,也避免了横杆或工件与拉拔模具中的坯料夹持件干涉。