| Hardness material precision ball plays an important role in precision engineering field, which is considered as one of the most important elements. Because of the complication of the traditional lapping technique and control, the consistence and stability of ball are poor, the cost is high, it is difficult to get hardness material ball of high sphericity,and the application of the hardness material sphere is limited.The study of this paper was based on based on the basic research of a new type of lapping method for high precision ball. To address the above deficiencies of traditional grinding method,the control construction of wide world internet, Intranet Ethernet networks and on-site CAN bus are adopted and designing of control system of hardware and software for precision balls lapping machine. Aiming at the two-way rotation of the main control parameters of grinding,adaptive control strategy is proposed.at the same tame,the technology database which can effective administrate the process data and provide some guidance on the process design,eliminate the instability of manual operation effectively, ensure the accuracy and quality of the batch processing of high consistency is built.In the final part of this paper, silicon nitride ceramics balls (Φ35mm) are taken as object of a high efficiency lapping experiment on the lapping machine. As a result of the experiment, fine sphericity (1μm), surface roughness (Ra 50nm) of the silicon nitride ceramics balls are obtained, Size and sphericity of the ball consistency stability High processing efficiency,high quality of Lapping and high stability is realized in rotated dual-plates lapping machine for precision balls. |