TY - JOUR AU - Tisnovskii, L. AB - UNIT MACHINE FOR MACHINING REDUCTION WORM GEAR CASINGS UDC 621.952 I.M. Kokhan and L.R. Tisnovskii At the Bolshevik Works, up to 1966, casings of reduction worm gears were machined in universal machines using special devices. The most difficult operation was boring holes under the axis of the worm: at first, the holes were roughly bored on both sides in a boring machine with 180 ~ rotation of the part on a turntable, then they were finished in a jig borer. During these operations, the interaxial distance was not always maintained, or the axes were greatly distorted. As a result, the produced casings had to be classi- fied as rejects. The machining of a medinm-size reduction gear casing took 7 h. Each casing was checked with special measuring devices. This operation took 0.5-1 h. The unit machine for boring holes under the axis of worm gears, which has been developed by I.M. Kokhan and L.R. Tisnovskii and adopted for production in the industry, makes it possible to increase con- siderably the effectiveness of this operation and to produce high-grade machined parts (see Fig. 1). The machine consists of two UM2243 power packs, made by the Minsk Works for Automatic Lines. TI - Unit machine for machining reduction worm gear casings JO - Chemical and Petroleum Engineering DO - 10.1007/BF01137175 DA - 2005-01-27 UR - https://www.deepdyve.com/lp/springer-journals/unit-machine-for-machining-reduction-worm-gear-casings-qbk0HKCJx6 SP - 861 EP - 861 VL - 4 IS - 10 DP - DeepDyve ER -