Small bearings cylindrical grinding method

1. Longitudinal grinding method as shown in figure 5. 3 ( a) , as shown in the longitudinal grinding method namely longitudinal grinding, grinding method is the most commonly used. Grinding, workbench for longitudinal live after feeding, the second rotation periodic transverse feed, workpiece grinding allowance to in multiple reciprocating stroke to longitudinal grinding method is as follows (1) the characteristics of high precision Ra value is small ( Every time the grinding depth is small, traverse grinding for many times to all allowance) (2) low productivity for single small batch production. (3) is especially suitable for thin, precision grinding of workpiece, The grinding force is small, feeding small) 。 2. Horizontal grinding method as shown in figure 5. 3 ( b) , as is shown in horizontal grinding method is also called the cut method. By grinding the workpiece width and length should be less than the cylindrical grinding wheel cutting when grinding wheel for continuous or discontinuous transverse feed movement, until all allowance is ground to. When grinding wheel grinding without longitudinal feed motion, coarse grinding when available higher cutting speed; Fine grinding when cutting speed is low, in order to prevent the deformation of workpiece burn and fever horizontal grinding characteristics are as follows: (1) the working condition of the same width of the grinding wheel on grits, fully give play to the role of all abrasive grinding at the same time, due to the transverse feed using continuous, shorten the grinding time, therefore, has a high productivity (2) the radial grinding force is bigger, prone to bending deformation of workpiece, are generally not suitable for grinding a finer artifacts that are produced in large grinding heat (3) grinding, easy to burn and heat deformation. (4) on the surface of the grinding wheel form Trim marks) Will be copied to the workpiece surface, influence the surface roughness of workpieces. In order to eliminate to defect, but at the end of the horizontal grinding method, do small vertical movement. (5) horizontal grinding due to limit the width of grinding wheel is only applicable to grinding length shorter cylindrical surface. Therefore, the lower horizontal grinding method is suitable for batch production and processing precision, good rigidity workpiece. 3. Deep grinding method as shown in figure 5. 3 ( c) Shows, this is a kind of use morer grinding method, using larger transverse feeding in a longitudinal feed mill all the grinding allowance to the workpiece. , because of the grinding basic time shorten labor productivity is high.