| 摘要 |
A protective shield for a moving part of a machine tool, comprising at least three elements (100, 200, 300) consisting of panels of which the first (100) is stationary relative to the frame and provided with a window (110) with inside edges restricting the freedom of movement (arrows x and y) of a moving part (O) extending therethrough; the second (200) is slidable (arrows x' and y') relative to the first panel (100) along two axes (X, Y), larger than the window in the first panel (100), and provided with a window (210) within which said moving part (O) is free to move (arrows x and y); and the third (300) is movable (arrows x and y) and substantially larger than the window (110) in the first panel (100), and receives said moving part (O) in its central portion. As a result, the movements (arrows x and y) of the moving part (O) in the plane of the two axes X and Y in the window (110) in the first panel (100) mean that the second, intermediate panel (200) has a proportional mobility (arrows x' and y') and is thus able to fill the opening of the window (110) in the first panel (100) after it has been left clear by the third panel (300) following the movements (arrows x and y) of said moving part (O). Said shield is useful in machine tools for high-speed machining. |
