A processing method of the eccentric shaft

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Such eccentric shaft requires both ends of the B, C eccentric cylindrical A benchmark cylindrical eccentric direction, and eccentric dimensions, generally within 5mm, eccentric error requirement is less than 0.05mm.
In order to meet the above requirem ents, the following processes and tooling.high speed bearing
A reference first cylindrical processing, were left at both ends of the shaft of 50mm length of 25mm process chuck, the chuck and A baseline coaxially and stepped surface with A reference vertical.
Chuck the shaft at both ends milled flat 42h6, as shown in Figure 1, the flat and A benchmark centrosymmetric and both ends of the parallel.
Tooling production: card cans of two, as shown in Figure 2, groove 42H7 symmetrical with the center hole B5 and the end face of the groove and perpendicular to the central bore of.
Card canned both ends of the shaft, card cans eccentric direction should be the same, a flat 42H7/h6 with the card slot of the tank axis, controlled eccentric direction; eccentricity can be adjusted by adjusting the compression screw on the card cans Cover; pressed by the stepped surface of the end face with the shaft so that the card tank, parallel to the axis center of the center of the card can.
Lathe with double top clamping the four claws clamping tank rotation, measured in Table A benchmark both ends of the cylindrical adjustment screws on the card cans, adjusted to the different amount of eccentricity, turning the eccentric cylindrical to size.
When the eccentric axis machining after the cut off both ends of the process chuck.
Such processing method is simple, reliable, and the original processing method to avoid tedious (boring machine hit the center hole), can be applied to the required direction of the plurality of eccentric, the eccentric shaft processing.bearing manufacturers