A spiral bevel gear processing process is composed of a number of processes, in order to obtain the suitable precision of the spiral bevel gear, all procedures are around the process, but also to find some ways to improve the accuracy, so that you can improve the efficiency of the work, but also to prevent the tooth break situation. -iHF closing gear
Improve the processing quality of the tooth blank. The quality of tooth blank is fundamental to the machining accuracy of spiral bevel gear, and the precision of tooth blank plays an important role in the production of high precision spiral bevel gear. Helical bevel gear processing is mostly based on its inner hole and end face as a positioning benchmark, the use of CNC machine tools makes the cylindrical helical bevel gear will be turned out in a single installation of the helical bevel gear positioning inner hole and end face, the end runout is less than 0.015mm.
Methods to improve the machining accuracy of spiral bevel gear: to improve the production and installation accuracy of fixture. The manufacturing and installation accuracy of the fixture is not high, and the radial runout of the gear ring and the tooth direction error will occur. The installation accuracy of the tooth blank also mainly depends on the production accuracy and installation accuracy of the fixture. The dot of the helical bevel gear hobbing mandrel, the beating of the positioning outer circle and the positioning end face is within 0.005 sister, and the matching gap between the positioning outer circle and the tooth blank is 0.002 ~ 0.008mm.
Improve the sharpening accuracy of the tool. The cutting tool's own building accuracy and grinding accuracy have a great impact on the tooth shape accuracy of the cut helical bevel gear, therefore, in order to package the machining accuracy, it is necessary to accurately determine the accuracy of the tool and the grinding accuracy of the traveling tool. Tool accuracy as usual according to the precision of the helical bevel gear to be processed, a simple and feasible way is to buy a famous hob produced abroad.
This page is taken from experience without authorization