Many small-size precise plastic helical involutes gears are used in electrical appliances to transmit rotary movements con- tinuously and smoothly. Ball-end milling is an effective method for trial manufacture or smal...Many small-size precise plastic helical involutes gears are used in electrical appliances to transmit rotary movements con- tinuously and smoothly. Ball-end milling is an effective method for trial manufacture or small batch production of this type of gear, but the precision of the gear is usually low. In this research, the main sources of the errors of the gear, machining errors of the tooth profile and trace of the gear obtained were analyzed. The correction amounts for these errors are then determined by using a CNC gear tester. They are used to generate a new 3D-CAD model for gear machining with better nrecision.展开更多
The steel ball transmission of zero gear clearance is studied and its construction formation as well as transimission principle are also analyzed. The transmission ratioequations and dynamic balance conditions are giv...The steel ball transmission of zero gear clearance is studied and its construction formation as well as transimission principle are also analyzed. The transmission ratioequations and dynamic balance conditions are given and no reverse-error technique is deeply researched. It provides a kind of high property driver for the robots and other precision machines.展开更多
文摘Many small-size precise plastic helical involutes gears are used in electrical appliances to transmit rotary movements con- tinuously and smoothly. Ball-end milling is an effective method for trial manufacture or small batch production of this type of gear, but the precision of the gear is usually low. In this research, the main sources of the errors of the gear, machining errors of the tooth profile and trace of the gear obtained were analyzed. The correction amounts for these errors are then determined by using a CNC gear tester. They are used to generate a new 3D-CAD model for gear machining with better nrecision.
基金Project(2021YFB2011100)supported by the National Key Research and Development Program of ChinaProject(2020YFB2007802)supported by the National Key Research and Development Program of ChinaProject(11972112)supported by the National Natural Science Foundation of China。
文摘The steel ball transmission of zero gear clearance is studied and its construction formation as well as transimission principle are also analyzed. The transmission ratioequations and dynamic balance conditions are given and no reverse-error technique is deeply researched. It provides a kind of high property driver for the robots and other precision machines.