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Hob installation angle adjustment method of calculation formulas
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This paper describes a method of processing time on Helical Gear hobbing machine, hob installation angle adjustment methods and calculation formulas, by means of the formulas, can easily calculate the size of the hob mounting angle and yaw direction is determined, thereby quickly hob installation. & Nbsp;

When working on Helical Gear hobbing Y3150E type, in order to cut the exact tooth, should make the hob and the workpiece is in the correct "engagement" position, which is to ensure the arrangement direction and gear hob tooth gullet in the same direction, thereby machining a certain helix angle gear cogging. For this reason, before processing gear shall hob axis relative to the top surface of the gear installed at an angle of deflection, the deflection angle is called hob installation angle, represented by δ. Hob installation size and orientation angle δ not only with hob helix angle ω about the size and direction, but also with the size and direction of the helix angle β about processing gear, which gives the actual adjustment hob installation inconvenience . He summed up the "character formulas" to help the hob adjust the installation. & Nbsp;

When shown Helical Gear hobbing hob axis deflection of the figure, the size of its installation angle: δ = β ± ω (β> ω) & nbsp;

(a) right-hand right-hand gear hob (b) the right-handed left-handed hob gear & nbsp;

(c) the right-handed left-handed gear hob (d) L - L gear hob & nbsp;

When Helical Gear hobbing hob installation angle & nbsp;

is easy to see from the figure, when the hob helix angle ω of rotation of the gear helix angle β of rotation is the same, hob installation angle δ size of β-ω; when the hob spiral liter angle ω of rotation of the gear helix angle β of rotation is not the same, hob installation angle δ size of β + ω. Hob installation angle δ deflection direction of rotation and the workpiece gear to the relevant when processing right-handed gear, hob counterclockwise deflection; when machining L gear, hob clockwise deflection. Based on the above analysis, it can be summed up as follows formulas:. "With different plus minus right against left-cis"



    
 
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