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DBL type pulsating CVT school early development of a continuously variable transmission, the transmission is a mechanical one-way overrunning clutch 90 ° phase shift, four-phase parallel
linkage small CVT. The box is an important part of the CVT, its three holes in the processing of dimensional accuracy and positional accuracy is directly related to the life of the CVT.
Three holes in the batch processing gearbox, usually on a horizontal boring machine, boring process. However, due to the limitations and impact of the equipment, conditions and other factors
on the lathe, case parts boring hard to ensure processing quality. To this end, developed a Lathe boring fixture, the fixture so that the workpiece once installed, by the indexing mechanism
in the three station processing three holes of the box, thus ensuring the machining accuracy and the hole of the gearbox holes parallelism between the Department of Practical use, the effect
is quite good, both to solve production problems, and improve efficiency.
A technical requirements and process
Continuously Variable box of materials of ZL104 rough precision casting. Box component processes shown in Figure 1, the processing procedures Holes O1 hole and hole O2 O3, machining accuracy
levels are IT7 level, roughness value Ra1.6, three horizontal degrees 0.05, box holes between the position size in Figure 1. Box addition to the holes, the rest of the surface have been
processed.
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