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What factors can affect the accuracy of bearing grinders? Let's briefly analyze them below.
1. The impact of process system problems on machining accuracy. In the process of component machining, the process system is an important factor affecting machining accuracy. Once problems occur, machining accuracy will also decrease.
. Firstly, there is a process issue. If the process application is unreasonable or the heat generated during the processing affects the process, it will cause deviations in the processing technology, leading to processing errors. In addition, residual stress on the workpiece may also cause deformation, resulting in accuracy errors<2. The rotational accuracy of the grinding wheel spindle refers to the radial runout and axial displacement of the grinding wheel spindle end. The radial runout and axial displacement tolerance of the grinding wheel spindle of a typical grinder is 0.003 mm. The grinding wheel spindle drives the grinding wheel to rotate at high speed to complete the main motion of grinding. Therefore, the rotational accuracy of the grinding wheel spindle can directly affect the surface roughness of the workpiece<3. The rotational accuracy of the headstock spindle is used to drive the workpiece for circular feed forming motion, so the error of its rotational motion on the grinder will be reflected on the machining surface. The radial runout of the grinding machine clamp spindle can cause roundness errors on the machined surface. The movement of the headstock spindle can cause axial circular runout errors on the surface of the workpiece<4. The linear motion accuracy of the worktable will directly affect the machining accuracy. Due to its straightness error in the vertical plane, it will be manifested as a change of 8 degrees in the center of the workpiece on the grinder, causing a change in the diameter of the workpiece and affecting the straightness of the surface contour of the workpiece. At the same time, it will also produce errors in the cylindricity of the workpiece
