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为实现平面非圆曲线零件轮廓相对确定方向的线速度稳定不变(简称恒速),建立了控制运动的数学模型后,需从理论上验证模型应用于实际的可行性。基于VB设计的恒速运动仿真系统选择偏心轮为试件,参数可任意调节,用数学模型控制模拟实际运动状态,动态显示运动速度并计算误差。应用仿真系统在常用参数范围内计算速度误差,结果表明运动的相对误差较小,说明数学模型控制平面曲线零件的运动可以实现基本恒速。
In order to achieve a stable linear velocity (relative constant speed) of the relative non-circular curve of the contour of the part, the mathematical model of the control motion is established, and the feasibility of the model is verified theoretically. The constant speed motion simulation system based on VB design chooses the eccentric wheel as the test specimen, the parameters can be adjusted freely, the actual movement state is controlled by the mathematical model control, the movement speed is displayed dynamically and the error is calculated. The simulation error of the speed of the system is calculated in the range of common parameters. The result shows that the relative error of the motion is small, which shows that the movement of the curve part of the mathematical model control plane can achieve the basic constant speed.