Gear cutter hob
Gear hob is a kind of tool for processing straight and helical cylindrical gears according to the principle of helical gear meshing. It is equivalent to a small number of teeth, a large helical angle of the helical gear its appearance is worm-like. According to the processing nature, it is divided into: precision cutting hob, rough cutting hob, shaving hob, squeezing hob, and grinding hob. According to the structure is divided into: integral hob, welded hob, assembled hob. Gear hob is in accordance with the principle of helical gear pair meshing, with the development of cutting gear tool, gear hob is equivalent to a small gear, cut gear is equivalent to a large gear. The gear hob is a helical gear with a large helix angle β0 and a small number of thread heads (1~3 teeth), a long tooth, and can rotate many circles around the hob indexing cylinder, so that it is like a worm with a small helix angle γz. In order to form the cutting edge, several chip grooves are milled along the axis on the end face of the worm to form the front face and the front angle; the back face and the back angle are formed by shoveling teeth and shoveling grinding.
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Product Description
The gear hob is helicalgear meshing principleA tool for machining straight and helical cylindrical gears. It is equivalent to a small number of teeth, a large helix anglehelical gearIts appearance is worm-like. According to the processing nature, it is divided into: precision cutting hob, rough cutting hob, shaving hob, squeezing hob, and grinding hob. According to the structure is divided into: integral hob, welded hob, assembled hob.
Gear hob is in accordancehelical gearVice meshing principle, with the method of cutting gear tool, gear hob is equivalent to a small gear, the gear is cut is equivalent to a large gear. The gear hob is a helical gear with a large helix angle β0 and a small number of thread heads (1~3 teeth), a long tooth, and can rotate many circles around the hob indexing cylinder, so that it is like a worm with a small helix angle γz. In order to form the blade, several chip grooves are milled along the axis on the worm end face to form the front and rake angles. After shoveling teeth and shoveling grinding, it is formed.flankand rear angle.
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