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    • 2. 发明授权
    • Rotary grinding machine
    • 旋转磨床
    • US06899606B2
    • 2005-05-31
    • US10794835
    • 2004-03-05
    • Juei-Seng LiaoPei-Lieh Chiang
    • Juei-Seng LiaoPei-Lieh Chiang
    • B24B7/06B24B47/20B24B1/00
    • B24B47/20B24B7/06
    • A rotary grinding machine includes a rotary grinding member for grinding a workpiece on a workpiece feeding member. The grinding member is coupled with an output shaft of a motor through a drive transmission mechanism. The feeding member is coupled with the output shaft of the motor through a reduction gear mechanism, a transmission shaft and an endless tensible transmission member. To maintain an operating tension of the tensible transmission member when the feeding member is moved relative to the grinding member, a tensioning mechanism is disposed to enable effective transmission of a drive force from the reduction gear mechanism to the feeding member.
    • 旋转研磨机包括用于在工件供给部件上研磨工件的旋转研磨部件。 磨削构件通过驱动传动机构与马达的输出轴联接。 馈送构件通过减速齿轮机构,传动轴和无端张力传递构件与电动机的输出轴联接。 为了在馈送构件相对于研磨构件移动时保持张力传递构件的操作张力,设置张紧机构以使驱动力能够有效地从减速机构传递到馈送构件。
    • 5. 发明授权
    • Hydrostatic nut and lead screw assembly, and method of forming said nut
    • 静压螺母和丝杠组件,以及形成所述螺母的方法
    • US5499942A
    • 1996-03-19
    • US365740
    • 1994-12-29
    • William W. Pflager
    • William W. Pflager
    • B24B19/12B24B47/20B29C70/68B29C70/78B29D1/00F16H25/24B24B47/08
    • F16H25/24B24B19/12B24B47/20B29C70/682B29C70/78B29D1/00Y10S425/058
    • A method of forming a hydrostatic nut that cooperates with a lead screw for translating a wheel head, or carriage, on a grinding machine, such as a cam grinder. A lead screw, which is externally threaded, is inserted into a cylindrical mold, which is internally threaded. The lead screw is retained therein by pressure plates that seal off opposite ends of the open bore of the mold.A continuous cavity is defined between the internal threads on the nut and the external threads on the lead screw. An epoxy resin or other castable polymer is introduced through an inlet port in the mold into the cavity. The castable polymer is allowed to cure into a rigid mass that adheres to the internal threads on the mold. The lead screw is removed, and the mold may be machined to its final configuration as a hydrostatic nut.At least one helical channel is defined in the outer surface of the rigid mass adhered to the mold. In a preferred embodiment, one helical channel is formed on the leading edge of each thread, and a second, helical channel is formed on the trailing edge of each thread. Oppositely directed helical channels are pressurized to form a thin fluid film that prevents metal to metal contact between the complementary helical threads on the nut and the lead screw. The rigid polymeric mass is structurally reinforced by the threads defined on the metal nut, so that the channels defined on the exterior surface thereof maintain their dimensions.
    • 一种形成静压螺母的方法,该静压螺母与用于将砂轮头或托架平移的研磨机例如凸轮磨床的丝杠配合。 外螺纹的导螺杆被插入到内螺纹的圆柱形模具中。 导螺杆由压板保持在其中,该压板密封模具的开孔的相对端。 在螺母上的内螺纹和导螺杆上的外螺纹之间限定连续腔。 将环氧树脂或其它浇注聚合物通过模具中的入口引入空腔。 允许浇注聚合物固化成粘附到模具上的内螺纹的刚性质量块。 导丝器被去除,并且模具可以被加工成其静态螺母的最终结构。 至少一个螺旋通道限定在粘附到模具上的刚性块的外表面中。 在优选实施例中,在每个螺纹的前缘上形成一个螺旋通道,并且在每个螺纹的后缘上形成第二螺旋通道。 相对定向的螺旋通道被加压以形成薄的流体膜,其防止螺母上的互补螺旋螺纹和丝杠之间的金属与金属接触。 刚性聚合物质在结构上由限定在金属螺母上的螺纹加强,使得限定在其外表面上的通道保持其尺寸。
    • 6. 发明授权
    • Hydrostatic nut and lead screw assembly, and method of forming said nut
    • 静压螺母和丝杠组件,以及形成所述螺母的方法
    • US5405282A
    • 1995-04-11
    • US98059
    • 1993-07-28
    • William W. Pflager
    • William W. Pflager
    • B24B19/12B24B47/20B29C70/68B29C70/78B29D1/00F16H25/24B24B47/08
    • F16H25/24B24B19/12B24B47/20B29C70/682B29C70/78B29D1/00Y10S425/058
    • A method of forming a hydrostatic nut that cooperates with a lead screw for translating a wheel head, or carriage, on a grinding machine, such as a cam grinder. A lead screw standard, or master, which is externally threaded, is inserted into a cylindrical mold, which is internally threaded. The standard is retained therein by pressure plates that seal off opposite ends of the open bore of the mold. Beads of wax, or tape, or some other rigid instrumentality, are adhered to the exterior surfaces of the helical threads on the standard, while the rest of the standard is treated with a release coating.A continuous cavity is defined between the internal threads on the nut and the external threads on the standard. An epoxy resin or other castable polymer is introduced through an inlet port in the mold into the cavity. The castable polymer is allowed to cure into a rigid mass that adheres to the internal threads on the mold except for the helical beads. The standard is removed, the mold is machined to its final configuration as a hydrostatic nut, and the wax, or tape, is removed to leave voids in the rigid cured polymer. The voids define oppositely directed helical channels that are pressurized to form a thin fluid film that prevents metal to metal contact between the complementary helical threads on the nut and lead screw. The cured polymeric mass is structurally reinforced by the threads defined on the metal nut, so that the channels defined on the exterior surface thereof maintain their dimensions.
    • 一种形成静压螺母的方法,该静压螺母与用于将砂轮头或托架平移的研磨机例如凸轮磨床的丝杠配合。 外螺纹的导螺杆标准或主轴插入内螺纹的圆柱形模具中。 该标准通过压力板保持在其中,该压板密封模具的开孔的相对端。 蜡或胶带或其他一些刚性工具的珠子粘附在标准螺旋螺纹的外表面上,而标准物的其余部分用脱模涂层处理。 在螺母上的内螺纹和标准件上的外螺纹之间限定连续腔。 将环氧树脂或其它浇注聚合物通过模具中的入口引入空腔。 允许浇注聚合物固化成刚性质量块,其粘附到模具上的内螺纹,除了螺旋珠。 移除标准品,将模具加工成其静液压螺母的最终结构,并除去蜡或胶带以留下刚性固化的聚合物中的空隙。 空隙限定相反方向的螺旋通道,其被加压以形成薄的流体膜,其防止螺母和丝杠上的互补螺旋螺纹之间的金属与金属接触。 固化的聚合物质量通过限定在金属螺母上的螺纹结构地增强,使得限定在其外表面上的通道保持其尺寸。
    • 7. 发明授权
    • Cam feed unit for a machine tool
    • 机床的凸轮进给单元
    • US5283981A
    • 1994-02-08
    • US6743
    • 1993-01-21
    • Merrill G. JohnsonFrank E. StottsGlen E. DeBoard
    • Merrill G. JohnsonFrank E. StottsGlen E. DeBoard
    • B23Q5/34B24B47/20B24B1/00
    • B24B47/20B23Q5/341Y10T82/2541
    • A hydraulic cam feed unit is provided for moving a tool slide linearly towards and away from a workpiece. The feed unit comprises a hydraulic advance cylinder having a double rod, one end of which is connected to the tool slide to move the tool slide towards and away from the workpiece. A cam engaging member is connected to the opposite end of the double rod for linear movement with the double rod and the tool slide, and a cam is provided in selective engagement with the cam engaging member. A hydraulic feed cylinder has a single rod connected to the cam for linearly reciprocating the cam. When the cam is in engagement with the cam engaging member, the linear movement of the cam controls the linear movement of the tool slide.
    • 提供液压凸轮进给单元,用于使工具滑动件线性移动和远离工件。 进料单元包括具有双杆的液压前进缸,其一端连接到工具滑块以使工具滑动件朝向和远离工件移动。 凸轮接合构件连接到双杆的相对端,用于与双杆和工具滑块线性运动,并且凸轮设置成与凸轮接合构件选择性地接合。 液压进给缸具有连接到凸轮的单杆,用于使凸轮线性往复运动。 当凸轮与凸轮接合构件接合时,凸轮的线性运动控制工具滑块的线性移动。