The size of automobile gear hob mainly includes diameter and length. The diameter of automobile gear hob usually depends on module, hole diameter (shank diameter), equipment conditions and part structure. Usually, tool manufacturers will recommend the use of standard automobile gear hob diameter to reduce the preparation cost of...
The cutting parameters of gear hob include cutting depth, cutting speed and axial feed. The determination of these parameters should be based on the modulus, material and accuracy of the processed gear, the material and structure of gear hob, the rigidity and power of machine tool and other factors....
Combined with the actual needs of gear hobbing tools in automobile gear production line, select the problems often encountered in the design and application of hobs and spline hobs commonly used in mass production. Based on production practice, and through repeated test verification and data accumulation, improve and innovate...
All automobile gear hob teeth must be in the same center, especially for insert hob teeth with undercutting and chamfering functions. The symmetrical cutting edge of automobile gear hob can produce the required tooth shape, and the center line of the cutting surface (the symmetry of the cutting edge)...
CNC three-axis gear hobbing machine can feed in axial, tangential and radial directions at the same time. The axial feed of hob is the same whether it is straight or oblique. The cutting process of hob is the same as that of worm gear meshing. Gear hob cuts the...
With the increase of wear degree, the cutting performance of gear hob will gradually decline, which will reduce the finish of machined surface, increase cutting force and produce vibration or abnormal noise in the cutting process. At this time, if the gear hob continues to be used, it will...
The wear of gear hob is a very complex proposition, and there may be different answers. It not only depends on the feed and speed, raw materials and gear hob parameters, coolant, etc., but also on the direction of tool channeling and the equipment conditions of the machine. The...
The positioning of automobile gear hob should ensure that the whole aperture and end face are required to be used. Each position is based on the shaft, so as to ensure that all hob teeth complete the part of the tooth profile required for machining. This assembly relationship limits...
As a prominent performance of modern industrial production is accuracy, the accuracy of automobile gear hobs is regarded as the most basic classification requirement. Here, various types of gear hobbing cutters are divided into finish machining, semi finish machining and rough machining according to the functional characteristics required by...
Gear precision hob is a kind of tool that is directly processed and formed on gear hobbing machine. Standard tooth profiles or special forms are available. The specific design of cutting tools should be carried out according to the requirements of parts. 1. Standard gear hob The standard hob...