Control strategy for the flexible roll forming machine with the structure of double rack and single gear

Flexible roll forming has drawn more and more attention in recent years with its low cost, high efficiency, low noise, less pollution and so on. The article provides a new type of flexible roll forming machine with the structure of double rack and single gear, and mainly describes the control strategy and interpolation algorithm based on this structure. Because the tracks of sheet metal are often nonsymmetrical, the left and right sides of the track have been separated, the minimum as the right track, maximum as the left track. Programming with VC, we found the path interpolation point and angle values. The data above prepare for the subsequent distribution of motor position instruction. The article made a preliminary allocation algorithm. Finally the article has verified that the calculation of interpolation points and rotation angles are correct, and it gives the method to compensate the interpolation points when the offset distance is radius R between the forming point and roller rotation axis.