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介绍了我厂在LG528B汽车变速器齿轮开发中所研制的重点工装夹具,该夹具是专门磨削斜齿轮光滑内孔的专用夹具。由于该系列齿轮光滑内孔类斜齿轮的结构特点,在热处理后磨孔加工过程中不能简单地使用“节圆棒”或“节圆球”定位和夹紧,需借助专用工装夹具来完成磨孔工序,另外该系列齿轮有单联和双联两种结构形式的区别,因此工装也有所不同,一种是弹性膜片工装,用于精加工单联斜齿齿轮内孔;另一种是双锥套胀紧工装,用于精加工双联斜齿齿轮内孔。本文重点介绍弹性膜片工装在设计、制作、使用和调整中的要点及注意事项等。
Introduced our factory in LG528B gearbox developed in the development of key tool fixture, the fixture is a special grinding smooth bore helical gear special fixture. Due to the structural features of this series of smooth bore helical gears, it is not easy to use the “pitch bar” or “pitch ball” positioning and clamping during the heat treatment of the grinding hole, Jig to complete the grinding process, the other series of single and double the gear has two different forms of structure, so the tooling is also different, one is the elastic diaphragm tooling for finishing single-bevel gear bore; The other is a double taper sleeve expansion tooling, used for finishing double helical gear bore. This article focuses on the elastic diaphragm tooling in the design, production, use and adjustment of the points and precautions.