1. What is the center height of the centerless grinder? Centerless cylindrical grinder Centerless grinding machine center height refers to the distance between the center axis of the grinding machine spindle and the work table. During the grinding process, the workpiece is clamped on a table and machined by the grinding head. Therefore, if the center line of the grinding machine spindle is not on the same level as the work table, it will affect the machining accuracy.
2. How to measure the center height of the centerless grinder?
There are several ways to measure the center height of a grinder, but here are two commonly used methods:
Method 1: Use an altimeter.
The altimeter is one of the commonly used tools to measure the center height of a grinder. The altimeter is erected on the grinding machine work surface, adjusted to be parallel to the axis of the grinding machine spindle, and then the height is adjusted on the altimeter so that the pointer of the altimeter points to the central axis of the grinding machine spindle. At this time, the value on the altimeter is the center height of the grinding machine.
Method 2: Use a vice.
A cylinder with a precise diameter is clamped to the grinding machine spindle, which is then fixed on the table and adjusted to the same level as it. At this point, the cylinder and the table appear in a horizontal line. Use an outside micrometer or vernier caliper to measure the difference in distance between the upper and lower surfaces of the cylinder and the table, which is the center height of the grinding machine.
3. The influence of center height on grinding accuracy
The height of the center of the grinding machine has a great influence on the grinding accuracy. In general, if the center of the grinding machine is too high or too low, it will lead to a decrease in grinding accuracy. If the center height is too high, it will cause the workpiece to be eccentric or tilted, resulting in uneven grinding surface; If the center height is too low, it will cause friction between the workpiece and the grinding head, which will affect the grinding effect.