The invention relates to the related field of
numerical control lathe heat dissipation equipment, and discloses a
numerical control lathe auxiliary heat dissipation device capable of automatically adjusting spraying speed of cooling liquid. The
numerical control lathe auxiliary heat dissipation device comprises a main body box, wherein a wind wheel box is fixedly connected to the
tail end of the left side of the upper end face of the main body box, a wind wheel
transmission belt cavity extending downwards into the main body box is formed in the wind wheel box, and a
rotating disc friction wheel cavity which is located in the main body box and is provided with a downward opening is formed in the right side of the wind wheel
transmission belt cavity. According to the device, the purpose of monitoring the turning
machining rotating speed in real time is achieved through a
rotating disc friction wheel abutting against a numerical control lathe rotating chuck, meanwhile, the spraying speedof the cooling liquid can be correspondingly changed in cooperation with the speed adjusting effect of a speed adjusting cavity, and therefore full-automatic adjustment of the cooling liquid is achieved, the
personnel safety is guaranteed, and meanwhile the use amount of the cooling liquid is more reasonably reduced; and when the
machining rotating speed is too high, the purpose of automatically switching the efficient cooling liquid when the rotating speed is too high is achieved through a triggering magnetic block and switching of a main sliding block valve and an auxiliary sliding block valve, and therefore the
machining quality of workpieces is guaranteed.