Mutual-lapping device for improving gear machining accuracy and the mutual-lapping method thereof

A mutual-lapping device for improving gear machining accuracy, comprising:

• a driving friction wheel, a driving belt pulley, a transmission belt A), a connecting rod A, a rotation shaft segment A, multi-ball sleeve, a mutual-lapping gear A, a tension spring, a driven friction wheel, a pendulum bar of the driven friction wheel, a driven belt pulley, a transmission belt B), a connecting rod B, a pressure spring of tensioning pulley, a tensioner mechanism, a rotation shaft segment B, a mutual-lapping gear B;
• the driving friction wheel driven by a motor rotates around fixed rotary center;
• the driving belt pulley is rigidly coaxially connected with the driving friction wheel, and the rotary center coincides with rotary center of one end of the connecting rod A;
• the other end of the connecting rod A is connected with the rotation shaft segment A, and the mutual-lapping gear A rotates with the rotation shaft segment A fixed on the connecting rod A by the multi-ball sleeve;
• the driven friction wheel driven by the driving friction wheel rotates around the pendulum bar of the driven friction wheel;
• one end of the pendulum bar of the driven friction wheel is fixed, and the other end pulls the driven friction wheel to the driving friction wheel by the tension spring;
• therefore, a suitable friction force is generated between the two friction wheels, which drives the two friction wheels to rotate in opposite directions;
• one end of connecting rod B rotates around the rotary center of the pendulum bar of the driven friction wheel and the rotary center of connecting rod B coincides with the rotary center of the driven belt pulley and the driven friction wheel;
• the other end of the connecting rod B is connected to the rotation shaft segment B, and the mutual-lapping gear B rotates with the rotation shaft segment B fixed on the connecting rod B by the multi-ball sleeve.