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    • 66. 发明专利
    • Method of manufacturing plain bearing, and plain bearing
    • 制造平面轴承和普通轴承的方法
    • JP2006132708A
    • 2006-05-25
    • JP2004323876
    • 2004-11-08
    • Ntn CorpNtn株式会社
    • OISHI SHINJINIINA MASATOSHI
    • F16C33/14F16C17/02F16C33/12
    • F16C17/107F16C17/08F16C33/14F16C2220/70F16C2220/82F16C2223/04
    • PROBLEM TO BE SOLVED: To inexpensively manufacture a plain bearing having an oil groove on its inside-diameter face with high dimensional accuracy. SOLUTION: This method of manufacturing a plain bearing applies a press working method including a drawing process capable of molding a cylindrical portion of a metal sheet with a comparatively high yield rate and high accuracy, the press working includes a shearing process for shearing and thinning the cylindrical portion between a punch 12 and a die 11 and controlling dimensions such as an inside-diameter, a thickness or the like with high accuracy, a plurality of projections 12a are formed on the outer-diameter face of the cylindrical punch 12 used in the shearing process, the projections 12a are transferred to the inside-diameter face of a cup-shaped molding 4 as a groove, and the oil groove is formed on the an inside-diameter face of the plain bearing in a state of leaving the groove transferred to the inside-diameter face of the cup-shaped molding 4 on the cylindrical body which is cut in round slices, and thus the plain bearing having the oil groove on its inside-diameter face can be inexpensively manufactured with high dimensional accuracy without implementing other processes such as a grinding process and a coining process. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了在其内径面上以高尺寸精度廉价地制造具有油槽的滑动轴承。 解决方案:这种制造滑动轴承的方法采用压制加工方法,其包括能够以较高的成品率和高精度成型金属板的圆筒形部分的拉伸工艺,该冲压加工包括剪切过程 并且使冲头12和模具11之间的圆筒部分变薄,并且以高精度控制诸如内径,厚度等的尺寸,在圆柱形冲头12的外径面上形成多个突起12a 用于剪切过程中,突起12a作为凹槽被转移到杯形模制件4的内径面,并且在离开的状态下在滑动轴承的内径面上形成油槽 在圆筒状的圆筒体上转移到杯状成形体4的内径面的槽,在其内径面上具有油槽的滑动轴承 可以以高尺寸精度廉价地制造,而不需要其他工艺如研磨工艺和压印工艺。 版权所有(C)2006,JPO&NCIPI