After the parts are positioned in the fixture, follow the following three clamping principles:

    First, the principle of no movement
    The direction of the clamping force is selected to point to the positioning reference, and the size of the clamping force should balance the influence of other forces, so that the parts do not move during processing.
    Second, the principle of no deformation
    Under the action of clamping force, do not make the parts in the process of processing the accuracy of the deformation is not allowed, to select the appropriate clamping parts, adjust the contact state of the press plate and the parts, apply the appropriate pressing force.
    Third, the principle of no vibration
    Maintain the rigidity of the support and clamping system, and the clamping part should be as close as possible to the processing area of the part to avoid vibration of the part and the clamping system.
    Generally, for roughing fixtures, choose a larger clamping force, mainly considering the principle of non-movement of parts, for finishing fixtures, choose a smaller clamping force, mainly considering the principle of non-deformation and non-vibration of parts.
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