Gear hobbing machine is widely used in automobile, tractor, machine tool, engineering machinery, mining machinery, metallurgical machinery, petroleum, instrument, aircraft spacecraft and other machinery manufacturing.
Gear machining machine tools for machining various cylindrical gears, bevel gears and other gear parts with teeth. Gear processing machine varieties and specifications are wide, processing a few mm diameter gear small machine tools, processing more than ten meters diameter gear large machine tools, and a large number of production with efficient machine tools for precision gear processing precision machine tools.
Ancient gears were filed by hand. In 1540, Toriano, Italy, made a clock using a rotary file tooth cutter; In 1783, Rene, France, made the use of a milling cutter gear machining machine, and a cutting rack within the gear accessories; Around 1820, British White made the first machine that could process both cylindrical gears and bevel gears. Machine tools with this capability were developed again in the second half of the 19th century.
In 1835, Whitworth obtained worm gear hobbing machine patent; In 1858, Schiller obtained the cylindrical gear hobbing machine patent; After many improvements, to 1897, the German Pforte made with differential gear hobbing machine, only to successfully solve the problem of processing helical gear. After making gear shape gear shaper cutter, American Fellowes made gear shaper machine in 1897. American Bill Graham invented a straight bevel gear shaper using a single plane cutter according to the spread method; In 1900, the United States Bill designed a double cutter disc milling straight bevel gear machine.
Due to the needs of the automobile industry, in 1905, the United States made a straight bevel gear shaper with two planers, and in 1913 made a spiral bevel gear mill; In 1923, the quasi-involute bevel gear milling machine appeared; In the 1930s, it was developed into a single broaching machine for straight bevel gears, which is mainly used in automobile differential gear manufacturing. In order to meet the needs of aviation industry, spiral bevel gear grinding machine has been developed. In 1944, the Swiss company Erlikon made an extended cycloidal bevel gear milling machine; Since the 1950s, it has developed a double-cutter combined face milling cutter disc to process an extended cycloidal bevel gear milling machine.
Gear processing machine tools are mainly divided into cylindrical gear processing machine tools bevel gear processing machine tools two categories. Cylindrical gear machining machine is mainly used for processing various cylindrical gear, rack, worm gear. Commonly used hobbing machine, gear shaper machine, milling machine, gear shaving machine, etc.Hobbing machine with hob according to the spread method rough, finish straight teeth, helical teeth, herringbone gear worm gear, etc., processing range is wide, can achieve high precision or high productivity; The gear shaper uses the gear shaper cutter to process straight and helical gear and other gear shape parts according to the spreading method, which is mainly used to process the inner gears of multiple gears. The gear milling machine is processed by the forming milling cutter according to the dividing method, which is mainly used to process the special gear shape instrument gear. Gear shaving machine with gear type gear shaving cutter finishing gear a high efficiency machine; Grinding wheels for grinding machines, high precision machine tools for finishing the tooth surface of hardened cylindrical gears or gear cutters; The honing machine uses the honing wheel to mesh freely with the processed gear to eliminate burrs of hardened gear and other tooth surface defects. The extrusion machine uses the high hardness without cutting edge extrusion wheel and the workpiece free meshing, grinding the small uneven tooth surface, to improve the precision and smoothness of the machine; Gear chamfering machine for internal and external meshing slippage gear tooth end reversing machine, production gear gearbox other gear shifting mechanism is indispensable processing equipment. Cylindrical gear processing machine also includes gear hot mill gear cold mill, etc.
Original Source: https://www.dlrefinetech.com/news/application-of-gear-hobbing-machinegear-cutting-machine/
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