Disclosed is a
processing center multi-axis joint deflection loading apparatus comprising a load-receiving test piece and a load-exerting component. The load-exerting component is constituted by a
steel ball, a cap, a ball socket, a bent board, a
force sensor, a connection component A, and a connection component B. The connection component A is fixedly connected to a
blade handle of the
processing center; the
blade handle is pulled tight within a bored hole on a main axle; and the connection component A is connected to a main housing via the connection component B. In a method using the apparatus for an inspection of static stiffness distribution, by means of a multi-axle joint movement, moving the load-exerting component and the load-receiving test piece to a preset loading position, allowing the normal at a load-receiving point on a load-receiving face of the load-receiving piece to be aligned with the axis of the ball socket; with the amount of shift measured by position-shift sensors fitted on the main axle, the main axle housing, and a working platform, and the amount of simulated load measured by the
force sensor of the loaded-exerting component, deriving a stiffness measurement of the load-
exertion position under a simulated load; changing the load-
exertion position by means of a multi-axle joint movement, repeating in sequence the previous steps, thus deriving a stiffness distribution under the simulated load.