| 摘要 |
PROBLEM TO BE SOLVED: To miniaturize a device by a simple dust-proofing measure, and to provide a jet machining device preventing fine particles from being deposited. SOLUTION: In this jet machining device, work 2 is put on a table 3 provided in a jetting chamber hopper 1 so as to move in an XY directions, and the work 2 is subjected to processing by grinding material jetted toward the work 2. A lower part of the jetting chamber hopper 1 is formed in a reverse trapezoid shape, and an annular conduit 10 for recovering the grinding material is provided on a lower end inner periphery of the jetting chamber hopper 1. A divergent flexible dust-proof hood 15 having a bottom end continuing to the inside of the annular conduit is provided in the lower part of the jetting chamber hopper 1, A driving unit 4 is arranged at the outside of and below the jetting chamber hopper 1, and an upper end of a strut 6 raised on the driving unit 4 and moving in the XY directions is positioned in the jetting chamber hopper 1 through a top portion of the flexible dust-proof food 15. The table 3 is attached to the upper end of the strut 6.
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