The precision casting forming technology of automobile castings refers to a kind of casting forming method. The castings produced by this kind of forming technology can be directly used without cutting. With the continuous improvement of the requirements for the size, quality, precision and other aspects of automobile castings,...
The gear hobbing and tool shifting on the gear hobbing machine can be completed by manual operation or automatic control on the gear hobbing machine. Automatic control of knife channeling is most suitable for mass production. However, manual gear shifting is usually used for a small number of production...
The purpose of tool shifting of automobile gear hob is to make all teeth of hob have about the same wear degree, so as to increase the service life of hob. The position relationship of each hob tooth should be ensured during the tool shifting of automobile gear hob....
Most of the inherent accuracy of the gear hob can be destroyed. Therefore, if the tolerance of tooth profile is very small, the diameter jump of automobile gear hob must be strictly controlled. First of all, the jumping of automobile gear hob leads to out of tolerance of tooth...
Most of the inherent accuracy of the gear hob can be destroyed. Therefore, if the tolerance of tooth profile is very small, the diameter jump of automobile gear hob must be strictly controlled. First of all, the jumping of automobile gear hob leads to out of tolerance of tooth...
In general, the tooth side clearance of automobile gear is switched with the matching wheel. It only happens when the car gears mesh. In order to measure and calculate the clearance, the deformation of tooth thickness in the tooth groove must be found and measured. Unless otherwise specified, the...
The comprehensive error shows the ring gear runout, pitch error, tooth thickness change, tooth profile error and change. The inspection equipment includes matched automobile gears or racks, and a certain center distance is guaranteed. The comprehensive deviation is determined by measuring the change of center distance. The maximum tooth...
1. Diameter jump of ring gear The diameter jump of the ring gear of the automobile gear is the value of the difference between the highest point and the lowest point of each tooth groove measured by the dial gauge when the gear rotates along the central axis. It...
Gear inspection is an important part of gear manufacturing. Lack of inspection and process control will lead to the outflow of unqualified gear parts. Therefore, this chapter will discuss some methods, equipment and tolerances for gear inspection. The basic inspection standards for automobile gear hob machining mainly include the...
Almost all auto gear hobs are made of high-speed steel. High speed steel is a tool steel with high hardness, high wear resistance and high heat resistance. It is characterized by excellent cutting ability and considerable toughness. Although all high-speed steels exhibit similar physical and mechanical properties, these properties...