Hello, I would like to ask: when I buy gear cutters at Taobao, the store always reminds me "what number should I buy to see the gear that you process a few teeth"? What does this phrase mean? Is the number of teeth that I will eventually make? What if I'm not machining the whole circle of gears (about 3/4 circles with teeth, and the rest of them with a handle)?
Gear milling cutter tooth, belonging to the machining gear, the cutter tooth shape is equal to the number of gear teeth gear tooth shape; the less the gear tooth number of gear teeth is raised; the more the more straight gear. In order to make sure that the teeth are identical and the types of cutters are as little as possible, a set of teeth is used with a knife (a knife number). Although you are not machining a full circle of teeth, choose the number of teeth in a full circle of teeth.The way, a knife, a processing group number of teeth, this knife is in accordance with the minimum number of teeth tooth group design. For example, 4#: 21-25 teeth, 4# knife is in accordance with the 21 teeth of the gear teeth design.
No gear cutters have been used. According to the introduction, can it be understood that when the hobbing process, the workpiece and hob are relatively moving, forming the outline of the gear. When milling, because the tooth is a tooth milling, its gear contour is decided by the gear milling cutter. So make sure you buy the modulus of the milling cutter, and then determine the number of teeth according to the number of teeth.1#:12-13 2#:14-16 3#: teeth, teeth, 17-20 teeth, 4#: 21-25, 5#: 26-34 gear teeth, 6#: 34-54, 7#: 55-134 gear teeth, 8# teeth: 135If it is not round, count the whole circle.
Processing gear tooth number with the number of gear cutterAccording to the number of gear teeth and different modulus design special gear milling cutter, but this will inevitably result in a variety of milling cutter specifications, the use of management inconvenience consequences, neither economic nor necessary.In actual production, the gears are divided into groups according to the number of teeth to be machined, and each milling cutter can process a set of gears corresponding to them. When the modulus is m=1~8 mm, the number of teeth of the machined gears is divided into 8 groups.Therefore, only 8 milling cutters are required for each module. When the modulus m=9~16 mm, the gear teeth are divided into 15 groups, each module needs to be equipped with 15 milling cutters, which greatly reduces the specifications of the milling cutter.When in use, should according to the number of teeth of gears, choose suitable cutter number.
