| 摘要 |
A bearing assembly machine for assembling a double row of needles separated by a spacer ring into a pinion. The assembly elements of the machine are urged by pneumatic cylinders in the direction of assembly. Each assembly element is cam controlled via a crank having one arm operatively connected between the corresponding pheumatic cylinder and the assembly element and the other arm biased against and riding on the perimeter of a cam disc. Each cam disc has a falling segment which allows the advance and a rising segment which overrides the bias of the pneumatic cylinder to cause the assembly element to retract. The pinion and spacer ring are conveyed by a shuttle from respective loading stations to the assembly station where assembly operations take place, and the shuttle is controlled in an analogous manner to the assembly elements.
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