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Category Cars
Created 2018-11-08
Owner mklyk
Title Grinding wheel outer spherical surface and double end
Description When grinding, the axis of the grinding wheel should be equal to the axis of the workpiece to ensure the roundness of the spherical surface. The error of the contour can usually be judged based on the grinding pattern. If the surface of the ball is convex, it indicates that the grinding wheel is grinding in the lower half of the grinding wheel, that is, the center of the grinding wheel is lower than the center of the workpiece. At this time, the center position of thethin abrasive cutting disc for metal should be adjusted so that it is equal to the center of the workpiece until it is ground. The surface of the sphere has a cross-web pattern. The error is required to be within 0.003-0.004mm.
When grinding the outer spherical surface, the grinding wheel frame should be rotated at a certain angle, so the trimming of the inner hole size of the grinding wheel should be completed before the machine tool is adjusted. After the grinding wheel is blunt in the grinding process, it is not necessary to trim the inner hole. It is only necessary to trim the end surface of the grinding wheel with a sand bar, so that the grinding wheel can be restored sharply and the inner hole size of the grinding wheel can be kept unchanged. After the grinding wheel is blunt, it should be repaired in time to ensure the quality of the processing.thin abrasive cutting disc for metal Since the grinding wheel axis and the workpiece axis cannot be absolutely equal when the spherical grinding is performed, a small step is generated on the workpiece, which affects the accuracy of the workpiece. At this time, a center hole of less than 1 mm can be drilled at the top of the spherical surface to avoid.
When grinding on both sides, the two grinding wheels cannot be adjusted to parallel position
The two grinding wheels should be adjusted to an inclined angle to form a thick, fine, and light-grinding zone between the grinding wheels. The size of the feed port should be 2/3 grinding allowance for the finished product size, and the size of the discharge port should be the finished product size.
In double-face grinding (straight-through feed), the parallelism of the workpiece cannot be ignored.
1) If the accuracy of the perpendicularity of the double-face grinding machine is too poor, the accuracy of the parallelism of the workpiece will be low. The grinding head should be overhauled and calibrated to make it accurate.
2) If the feeding or discharging guide is not parallel to the grinding wheel, the parallelism of the workpiece will be excessive. The feeding and discharging layers should be adjusted.
3) If the feeding speed is not uniform during grinding, the parallelism of the workpiece will be too bad. The feeding mechanism should be checked and adjusted.
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