GB/T 22097-2008Gear measuring center (English PDF)

6.1 Insulation resistance

The insulation resistance of the measuring center shall not be less than 2M ohm.

6.2 Ground resistance

The grounding resistance between the measuring center grounding device and the grounding terminal shall not be greater than 0.2 ohm.

8.1 Appearance

Use visual inspection.

8.2 Interaction

Use visual inspection and hand touching detection.

8.3 Oblique circular runout of lower center

Fix the magnetic meter base with the torsion spring comparator on the base.

Make the probe of the torsion spring comparator vertically contact the cone of the lower center. Turn the main shaft 720°. Take the maximum change of the indicated value of the comparator.

8.5 Coaxiality of upper center to spindle rotation center

Install a precision mandrel with a length of 200mm between the upper and lower centers. Fix the magnetic meter base with the torsion spring comparator on the lower disc. Make the probe of the comparator vertically contact the outer circle of the upper end of the mandrel. Turn the main shaft 720°. Take the maximum change of the indicated value of the comparator.

8.6 Indication error when measuring involute tooth profile deviation

Install an involute model between the upper and lower centers. According to the computer involute tooth profile measurement program, the probe is in contact with the tooth surface. Measure the tooth surface of the template. Take the difference between the measured value and the actual value of the sample.

8.7 Indication error when measuring spiral deviation

Install a spiral line model between the upper and lower centers. According to the computer spiral program, the probe is in contact with the tooth surface.

Measure the tooth surface. Take the difference between the measured value and the actual value of the model.

8.8 Indication error when measuring cumulative total deviation of tooth

pitch The probe is in contact with the middle of the standard gear tooth surface.

Measure from the marked tooth according to the computer pitch measurement program. Take the maximum difference between the cumulative total deviation of the tooth pitch measured for one revolution and the actual value of the standard gear.

8.9 Variation of indication value when measuring involute tooth profile

deviation Use the same method as 8.6. In one clamping, continuously measure the tooth surface of the involute template five times. Take the maximum difference between the indicated values of each curve.

8.10 Variability of indication value when measuring spiral deviation

Use the same method as 8.7. Measure the spiral pattern five times continuously in one clamping. Take the maximum difference between the indicated values of each curve.

8.11 Variability of indication value when measuring cumulative total

deviation of tooth pitch Use the same method as 8.9. In one clamping, five rotations are continuously […]