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In order to improve the grinding efficiency & accuracy of the spherical rollers, also ease the operators' labour intensity and ensure the personal safety, the engineering & technical workers in processing equipment department of Wafangdian Guangyang Bearing Group technology center successfully developed the spherical automatic roller CNC grinding machine. Each technical parameter and the performance met the design requirments after the new product was put into operation.
Wafangdian Guangyang Bearing Group originally used M8861A grinding machine to grind the rollers' outer diameter, which had the low degree of the automation, and the higher labour intensity, meanwhile the operators often grind their fingers. Adopting M8861 grinding machine to process rollers, which means the operators directly fitted the rollers to the fixture with their hands, then grinding & processing, i.e., "Manually fitted". It is because that the hands closely next to the rapid rotation of the wheel, and the fast pace of the work, so this processing way could easily make the hands grinded by the wheel.
However, the device of the 3MZ0150 automatic CNC spherical roller grinding machine works well, foundamentally guarantee the safe operation, meanwhile the hands-grinding accident will no longer appear. The wheel frame of this device used the servo motor drive, which achieved the digital control to the wheel frame feeding, and also realized the automatic control of the wheel frame trimming. Originally the outer surface of the spherical roller was processed on M8861A, the trimming to the curvature radius of the wheel roller outer surface was manually processed with low efficiency & accuracy, which seriously influenced the processing quality. Now using the servo motor drive, on one hand, it could achieve the motor rotation; on the other hand, the rotation speed of the diamond pen could be selected according to the specific requirments, thus the trimming accuracy of the wheel was improved, meanwhile the processing accuracy was also enhanced, besides, the trimming quantities & times were reduced, and the consumption of the wheel was also saved.
The steering control box and the digital control of electrical theory & circuit of this machine tool are completely designed & installed by Wafangdian Guangyang Bearing Group, and this machine tool achieved the electrical control performance of the CNC equipment.
It is indicated that the successful development of this machine tool has improved the processing accuracy, eased the labour intensity, enhanced the working efficiency, realized the automatic & safe operation performance. Now the second grinder of this kind has been successfully developed and will be put into use, which is more advanced than first one with higher linear speed of wheel and grinding efficiency. According to the relevant reports, Wafangdian Guangyang Bearing Group plans to successively renew all the original device models, continuously improve the technical level & capacity of the roller grinding processing equipment.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| Z-562601 bearing | 414.95 | 614.924 | 65 |
| Z-556907-A bearing | 380 | 520 | 65 |