The spindle parts processed by Dongguan CNC are an important part of the mechanical part of CNC machine tools, which are mainly composed of spindle, bearing, spindle stop device, automatic clamping and chip removal device. The lubrication, cooling and sealing of the spindle components of CNC machine tools are several issues worthy of attention during the use and maintenance of the machine tools.
First, the good lubrication effect can reduce the working temperature of the bearing and prolong the service life; for this reason, it should be noted in the operation and use: at low speeds, use grease and oil circulating lubrication; at high speeds, use oil mist, oil and gas lubrication methods .
However, when grease is used for lubrication, the enclosed amount of the spindle bearing is usually 10% of the bearing space volume. Do not fill it up at will, because too much grease will aggravate the spindle heating. For oil circulating lubrication, check the spindle lubrication constant temperature oil tank every day during operation to see if the oil is sufficient. If the oil is not enough, add lubricating oil in time; at the same time, pay attention to check whether the lubricating oil temperature range is appropriate.
In order to ensure good lubrication of the main shaft, reduce friction and heat, and at the same time take away the heat of the main shaft components, Dongguan Cnc Machining usually adopts a circulating lubrication system, which uses a hydraulic pump for strong oil lubrication, and uses an oil temperature controller to control the oil in the tank. temperature. The spindle bearings of high-end CNC machine tools are lubricated with high-grade grease sealing, and it can be used for 7-10 years every time the grease is added.
The new lubrication and cooling method of CNC machining in Dongguan not only reduces the temperature rise of the bearing, but also reduces the temperature difference between the inner and outer rings of the bearing to ensure that the thermal deformation of the spindle is small.