| 摘要 |
A window or door frame machining device comprises a work holder having a plurality of support rails and a plurality of clamp members supported along the rails for clamping frame members of an assembled perimeter frame onto the work holder. A machining head on a movable support arm is computer controlled by preset instructions arranged to position the clamp members along the respective support rails responsive to the preset instructions corresponding to a configuration of the perimeter frame. In this manner any surface of any frame member can be readily accessed by the machining head by relocating clamp members between different steps in the machining process and no repositioning of the frame is required so as to maintain the frame in a true square configuration while machining. A frame support on the support arm permits both machining and assisting in loading or unloading of the frame by the support arm.
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