| 摘要 |
PURPOSE: A table exchanging device for a laser generator is provided to move a heavy workpiece up and down using a motor having a relatively low capacitance by differently forming a gear ratio of first and second gears. CONSTITUTION: A table exchanging device for a laser generator includes a pin(310), two pairs of first gears(300), two pairs of second gears(320), a channel fixing block(360), a joint shaft(350), and a driving motor(400). The pin(310) is provided at a lower end of a channel shaped steel(230). The first gears(300) are arranged at an outer portion of the channel shaped steel(230) and formed at one side thereof with an eccentric hole(315). The second gears(320) are positioned under the first gears(300). The second gears(320) are engaged with the first gears(300) in order to drive the first gears(300). A driving shaft(330) is provided at centers of the second gears(320). The channel fixing block(360) rotatably supports the first and second gears(300,320).
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