cylindrical grinder in idle running of acceptance method

1. The temperature rise test of the cylindrical grinder shall not be less than 4 hours of idling. After reaching the stable temperature, the temperature and temperature rise shall be measured near the spindle bearing of the grinding head and in the oil pool of the bed, which shall not be greater than the relevant standards and design regulations.

2. The grinding head vertical feed accuracy test, each feed error should not be greater than 100% of the vertical feed rate, continuous 10 feed cumulative error should not be greater than 20% of the 10 feed rate.

3. For the low-speed running stability test of the worktable, adjust the moving speed of the worktable to about 0.05m/min, and use the indicator with indication value of 0.01mm within the limited travel range, and the indicator pointer should rotate uniformly and continuously.

4. The reciprocating speed difference test of the working table shows that the reciprocating speed difference between the working table moving in the speed range of 0.1-2m/min and the limited travel is not more than 10%.

5. The reciprocating speed difference test of the column shows that the reciprocating speed difference between the column moving within the speed range of 0.1-2m/min and the limited stroke is not more than 10%.

6. The worktable moves back and forth, and the limited punch out at both ends is inspected. For cylindrical grinder with table speed less than 35m / min, the weight of cylindrical grinder is ≤ 5T, and the limited punch out of worktable is ≤ 80mm; when the weight is 5-10t, the limited punch out of worktable is ≤ 120mm; if it is greater than 10t, the limited punch out of worktable is ≤ 150mm.

7. During the inspection of the reversing accuracy of the worktable, the moving speed of the worktable is 0.1-0.2m/min, it moves on the whole stroke, reciprocates at the same speed or at different speed for 5 times, and uses the indicator with indication value of 0.01 to check. During the inspection, the dwell time of the worktable at both ends is less than or equal to 1.5s, the reversing error is not greater than 0.1mm at the same speed and not greater than 0.3mm at the different speed.