| 摘要 |
PROBLEM TO BE SOLVED: To further improve work efficiency by using three or more main spindle units individually driven in the Y direction. SOLUTION: This printed circuit board work machine is provided with a table 2 movable in the X direction by placing a printed circuit board 16, plural sliders 7r, 7c, 7l respectively individually movably supported in the Y direction by cross rails 6 arranged so as to stride over the table 2, plural main spindle units 15r, 15c, 15l respectively movably supported in the Z direction by the sliders 7r, 7c, 7l, a single-row magnetic substance rail 17 for a linear motor fixed to the cross rails 6 and plural coils 18r, 18c, 18l for the linear motor respectively fixed to the sliders 7r, 7c, 7l so as to be opposed to the magnetic substance rail 17.
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