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Gear hobbing semiautomatic machine BCH-350 NC2

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The Gear hobbing semiautomatic machine with upright axis of workpiece for treatment of spur and helical gears, sprockets, worm wheels with hobs by method of form-generating. Structural features: The semiautomatic machine ВСН-350 NС2 is made in upright arrange-ment with movable front column and stationary table. The semiautomatic machine ВСН-350 NC2 is equipped with the SIE-MENS programmable controller and drives. Adjustment of rotational speed of hob spindle as well as of values of axial and radial feeds is realized with frequency converters-powered servomotors (de-pending on version) steplessly. High static and dynamic rigidity due to rational shape of column and sup-port carriage guides as well as rigidity increase of main shape-creating units. To use full length of hob cutting edge its periodical travel along the axis (shifting) is provided. The semiautomatic machine has a centralized lubrication system. Maximal outer diameter of gear to be treated, mm 500 Maximal module to be treated, mm 10 Maximal helix angle of teeth to be cut, deg 45 Diameter of workpiece spindle, mm 250 Distance between the tool axis and the table axis, mm: minimal/maximal 30/350 Maximal diameter of hobs to be installed, mm    - diameter 160    - length 230 Maximal hob travel along the axis (shifting), mm 170 Range of numbers of hob revolutions, rpm From 75 up to 400 incl. Range of axial feeds, mm/rev. From 3 up to 750 incl. Range of radial feeds, mm/min From 3 up to 600 incl. Value of rapid tangential travels, mm/min 145 Power of two-speed primary motion drive, KW 18,5 Number of coordinates to be controlled 3 Overall dimensions (length x width x height), mm 3485х2160х2335 Weight of the semiautomatic machine, kg 9500