Patent ID: 6702199
Filing Date: 2004-03-09
Classification: B23Q,Y02P,Y10T

Abstract:
A coolant feeding device of a machine tool that feeds the coolant from a feed pump (4) to a mist generating device (13) on the tip of a spindle (8) by way of a feed line (7):wherein a cylinder chamber (28) for compressed air and a cylinder chamber (29) for coolant are provided oppositely; wherein pistons (30) (31) are provided to said cylinder chambers (28) (29), respectively, and integrated into one body; wherein a coolant sucking and delivering means (2) is provided with a compression spring (32) to press said pistons in a specific direction for each cylinder chamber; wherein said coolant sucking and delivering means (2) sucks a fixed amount of coolant in the feed line (7) when the feed pump (4) stops feeding the coolant; and wherein said coolant sucking and delivering means (2) feeds a fixed amount of coolant into the feed line (7) when the feed pump (4) begins feeding the coolant.