What are the important links of precision surface grinder

The cooling fluid of Nantong surface grinder can also play the role of chip removal and lubrication, and the radial force is very large during grinding. This will cause the elastic retreat of the machine tool, grinding wheel and workpiece system, so that the actual depth of cut is less than the nominal depth of cut. Therefore, when the grinding is about to be completed, the grinding should be carried out without feed to eliminate the error. After the abrasive is blunt, the grinding force will also increase, causing the abrasive to break or fall off, re exposing the sharp edge, It is called "self sharpening" to avoid the work-piece's self sharpening after grinding for a certain period of time

The grinding of precision surface grinder is a method of cutting workpiece with grinding wheel as cutting tool, Due to the high hardness and heat resistance of the grinding wheel, it can process materials with high hardness, such as hardened steel and cemented carbide. The characteristics of the grinding wheel and high-precision surface grinder determine that the grinding process system can make uniform micro cutting, generally AP = 0.001-0.005 mm; the grinding speed is very high, generally v = 30-50 M / S; the rigidity of high-precision surface grinder is good; the hydraulic pressure is used Therefore, high machining accuracy (IT6 ～ it5) and small surface roughness (RA = 0.8 ～ 0.2 μ m) can be obtained economically. Grinding is one of the main methods of finishing parts.

When installing the workpiece on the disk of precision surface grinder, demagnetization must be carried out first. After adsorption, check whether it is firm, and do not bump the disk table. It is forbidden to knock or straighten the workpiece on the disk. The workpiece to be grinded must have a reference plane, and it is forbidden to grind the blank, When starting the grinding wheel, it must start at low speed, then switch to high speed, forbid to start at high speed, and the hydraulic switch handle is placed in the "stop" position, and the grinding wheel moves rapidly in the "back" position. The grinding wheel is cold at the beginning of work, so it should be fed slowly to raise the temperature gradually to avoid fracture