The CNC winding machine has the advantages of high speed, high precision, high flexibility and high degree of automation of all CNC equipment. The progress of the electronics industry has gradually put forward higher requirements and high-speed technology for the CNC system and servo drive system of the winding machine. To realize the high-speed numerical control of the winding machine, the numerical control system is first required to process the winding program composed of tiny program segments at a high speed to calculate the movement of the servo motor. At the same time, the servo motor is required to respond at a high speed. The use of 32-bit/64-bit microprocessor is an effective means to improve the high-speed processing capacity of the winding machine numerical control system. In the high speed of CNC winding machine, increasing the spindle speed occupies an important position. The method of increasing the speed of the main shaft is to directly connect the motor and the main shaft through a coupling, and the speed change function of the coupling can greatly increase the speed of the main shaft. The wire arranging part adopts the linear motor technology to replace the ball screw technology commonly used in the wire arranging transmission of the current winding machine, which improves the acceleration while improving the arranging accuracy. In addition to the continuous use of new functional components on the winding machine, the beating and concentricity of the tooling necessary for high-speed winding under the high-speed movement of the system requires professional and reasonable design and high-precision processing to meet high-quality coils. Circumvent demand.
The problems of the numerical control system can no longer be attributed to simple geometrical movement problems or statics problems. As a dynamic object, the new type of cable rack control does not follow the rotation of the main shaft to control the applied coils, but tries to show its "flexible foresight and intelligence"; on the other hand, the applied The control must take full account of the dynamic characteristics of the controlled object in order to obtain the expected control effect. Therefore, it is no longer possible to separate the control system from the controlled object for research and manufacturing like the traditional numerical control system, but must be handled as a whole to study its dynamics under high-speed conditions and ultra-high-speed motion control conditions. The time lag effect of light and electrical signals and their elimination. At high speeds, it is necessary to study the overall linkage that integrates the numerical control system and the control object, the nonlinear control strategy based on the overall power point, and the intelligent control method. Identification, analysis and control of electromechanical characteristic parameters. The core of high-speed control is to achieve high acceleration. For this reason, it is necessary to make the servo mechanism in the best working condition to obtain the maximum movement acceleration of the system. Therefore, the selection of the acceleration control curve based on the overall system, the identification and optimization of servo electromechanical parameters, and the coordinated control of multi-axis gains are the hotspots of the current research on the pro-type numerical control of the winding machine.
High-speed, high-precision interpolation calculation and control algorithm High-speed, high-precision interpolation is to decompose the complex automatic winding machine motion trajectory into servo control commands according to the control law. When winding highly complex coils, the winding program consists of a large number of fine adjustment programs. In addition to ensuring the continuous execution of the micro-segment program, the high-speed operation of the winding machine also needs to predict the current state of the coil in time according to the change of the spindle to achieve high acceleration Operational requirements. This requires in-depth research on the high-speed, high-precision interpolation, high-speed preprocessing of micro-segment programs, acceleration and deceleration control of micro-segment programs, advanced position prediction, direct interpolation of complex trajectories, and high-speed data transmission; The principle and method of numerical control programming for high-precision coil winding. Traditional numerical control programming solves the problem of the movement of the wire frame with the axis in the middle and low speed movement. However, the high-speed winding program puts forward the principle and method of the numerical control programming. higher requirement.
