GLEASON Spiral Bevel Gear Cutters
Spiral bevel gear milling cutters, also known as Gleason milling
cutters, are used to process spiral bevel gears with a modulus of
0.5 to 15 mm. Commonly used cutter heads have a nominal diameter of
12.7 to 457.2 mm (1/2 to 18 inches), and there are 10
specifications in total. 12.7 ~ 50.8 mm (1/2 ~ 2 inch) milling
cutter head is made of integral type, and the larger diameter is
made of insert type. The milling cutter head can be divided into
two categories: rough cutting cutter head and fine cutting cutter
head. There are two types of rough cutting discs (with two sets of
teeth for internal cutting and external cutting) and three sides
(with three sets of teeth for internal cutting, external cutting
and top cutting). There are two types of fine-cutting discs:
single-sided (there is only one kind of teeth in inner or outer
cutting) and double-sided. Rough cutting cutter head requires many
cutter teeth and good rigidity, and there is a support ring behind
the cutter head to bear the cutting force of cutter teeth; fine
cutting cutter head requires high precision, with gaskets and
wedges, which can precisely adjust the radial position of cutter
teeth. The cutting edges of the cutter teeth on various cutter
heads are straight and have a certain tooth profile angle. The
cutter teeth must be selected according to the calculated cutter
number to obtain the correct matching tooth profile, and the shovel
back type is adopted to make the cutter teeth heavy. The radial
position and tooth profile angle remain unchanged after grinding.
With the development of high-efficiency gear milling machines,
several new types of milling cutters have appeared, such as
high-rigidity milling cutters for rough cutting, wedge-mounted
milling cutters, and in addition to the semi-hobbing method used
when machining large wheels Cylindrical cutter head and spiral
forming cutter head, etc.