Grinding quality analysis, and judgment

Width in the big dimension deviation due to the width deviation is beyond technological requirements shall be awarded for the trash, Width size is too small, in the actual production had to be scrapped, width size is large, repair can be processed into qualified) 。 The cause of waste, main is improper operation, such as instrument for good, stopwatch, feed quantity is too big or feed is too fierce, this will produce the process of waste. Another case is operator according to the technological requirements of reference face grinding, and then according to the technological requirement after grinding the reference face, ring size has reached technical requirements, but still face have: 'black', it shall be awarded for the trash. The process of waste scrap belongs to. Width of big dimension deviation of grinding processes under the channel position deviation and impact bearing finished product level. Width change measure width change than the technical requirements shall be awarded for the trash. This process causes waste grinding wheel spindle and ring is not vertical, artifacts do not clean or there is burr etc can cause the width change quantity. Width change quantity out-of-tolerance has certain influence of next working procedure, such as grinding diameter, outside diameter surface generatrix error on reference face of gradient change quantity. When grinding channel, channel on reference face parallelism error. A single ( ) Large diameter deviation due to outside diameter deviation shall be awarded for the trash than the technical requirements. Causes the process of waste have 'close' wen didn't grasp well, large grinding depth, grinding wheel has wear or finishing is not good, operation or adjust the mistake and so on. ( ) Large diameter deviation directly affect the bearing with the host ( Machinery and equipment) To cooperate, when grinding channel affect the shape of the 'R'. A single radial plane of large amount of outside diameter changes due to the above technical requirements shall be awarded for the trash. The causes haven't round, a guide roller roller radial swing is too big, workpiece center below the guide wheel, grinding wheel grinding blunt, spindle runout, blank oval is too large, longitudinal feed too fast, and so on. This process of waste have an effect on next working procedure, when grinding channel channel diameter changes from super bad, affect the channel roundness error, etc. Roundness error is too large roundness error than the technical requirements shall be awarded for the trash, waste causes a workpiece center too low or too high ( Too low or too high to produce circular surface edges) , MAO bad roundness error, grinding wheel drive is too big, through the small number of grinding, improper roller rotation speed, grinding down through longitudinal feed too fast, and plate is too thin or have wear. Roundness error of big influential to the process, when grinding channel, channel roundness error, a single radial plane channel diameter changes in quantity, etc. Cylindrical surface of bus bar to the reference face gradient changes after the large amount of the error over the technical requirements shall be awarded for the trash, waste causes a great error in the blank itself, grinding 'spark' adjustment well artifacts caused by uneven 'seam', the longitudinal feed, workpiece end face or bruised face is too big or too narrow, the grinding depth through grinding number is too small, and so on. The process of waste have an effect on the process, when grinding the channel effect on outer channel end of parallelism, channel roundness error, a single radial plane channel diameter changes in quantity, etc. Inner ring reference face internal hole to beat large due to the error more than the technical requirements shall be awarded for the trash. Cause of scrap has low spindle rotating precision, workpiece end face is bruised or dirt, blank itself have error, centerless fixture of the magnetic force is insufficient, centerless jig improper adjustment, etc. Scrap for this process under the grinding process of channel creates a channel of end face parallelism error, and will produce a single radial plane channel diameter change quantity error, etc.