Abstract: A supplementary mechanism that provides a temperature rise and fall effect to a machine tool spindle is mainly used to connect to pipelines between a machine tool spindle and a cooling device. The present invention provides an additional heating function to the spindle of the machine tool that originally has a cooling device, and still retains its original cooling function. The supplementary mechanism can provide the effect of raising and lowering the temperature. When cooling, the liquid provided by the cooling device is passed to directly cool the machine tool spindle. When raising the temperature, the flow path is switched, so that the liquid of the cooling device cannot flow to the machine tool spindle, and the liquid flowing out of the machine tool spindle forms an independent circulation channel, and the supplementary mechanism heats the liquid in the independent circulation channel, achieving the effect of rapid heating.

Abstract: An auxiliary apparatus using a four-way electronic valve to achieve temperature rise and fall effect on a component of a machine tool, which includes: a four-way electronic valve having a front end inlet, a front end outlet, a rear end outlet and a rear end inlet; the four-way electronic valve electrically connected to a control source; an outflow channel having one end connected to the rear end outlet; a return fluid incoming channel having one end connected to the rear end inlet; and a pump arranged on any one of the two of the outflow channel and the return fluid incoming channel, and electrically connected to the control source in order to be controlled by the control source to drive the fluid inside the channel where the pump is arranged thereon to move.

Abstract: A supplementary mechanism that provides a temperature rise and fall effect to a machine tool spindle is mainly used to connect to pipelines between a machine tool spindle and a cooling device. The present invention provides an additional heating function to the spindle of the machine tool that originally has a cooling device, and still retains its original cooling function. The supplementary mechanism can provide the effect of raising and lowering the temperature. When cooling, the liquid provided by the cooling device is passed to directly cool the machine tool spindle. When raising the temperature, the flow path is switched, so that the liquid of the cooling device cannot flow to the machine tool spindle, and the liquid flowing out of the machine tool spindle forms an independent circulation channel, and the supplementary mechanism heats the liquid in the independent circulation channel, achieving the effect of rapid heating.