Kinematic Analysis of Crank-Connecting Mechanism in CNC Fabric Cutting Machine and Effects of Connection Lengths on Performance

Abstract

Krank -biyel mekanizmaları, kullanım alanı çok geniş olan bir hareket mekanizmasıdır ve basit, kullanışlı olması dolayısıyla çok katlı materyalleri kesme makinelerinde oldukça tercih edilmektedir. Bu mekanizmaya dayanan kesme sistemlerinde, kesme hızını arttıran parametrelerden biri olan krank uzunluğu değişiminin sisteme olan etkilerini görmek için Matlab / Simulink ile simülasyon gerçekleştirilmiştir. Ayrıca çok katlı serilmiş materyalleri kesmek için kullanılan kesme makinesinin kesici mekanizmasının kinematiği incelenmiş, hareketi analiz edilmiştir. Krank-biyel uzuvlarının optimum boyutları, karmaşık sayıların kullanılarak çıkarıldığı denklemlere göre belirlenmiştir. Çıkarılan boyutlar ve hareket denklemleri, Matlab / Simulink ile modellenerek karakteristik eğriler elde edilmiştir. Yapılan analizler sonucunda, çok katlı serilmiş materyalleri kesme makinesi için uygun krank -biyel kol uzunluğu bulunmuştur.

Krank Biyel Mekanizmasının Pozisyon Kontrolü

“…In the literature studies carried out so far, the position control of the crank-connecting rod mechanism is made by using the PID controller optimized with the Ziegler Nichols Method [1], the position control of the crank-connecting rod mechanism is carried out with the sliding mode controller and its dynamics are examined [2], proposed of a fuzzy mesh structure for the position control of the crank-connecting rod mechanism [3], the position control of the crank-connecting rod mechanism is made using PID fuzzy control [4], a genetic algorithm-based CTC system is proposed for the position control of the crankconnecting rod mechanism used in the ship propeller [5], the crankshaft using adaptive calculated torque technique -the position of the connecting rod mechanism is controlled [6], the output of the crank-connecting rod mechanism is connected to a pendulum, its control and dynamics are examined [7], the collective parameter approach is preferred, the dynamic behavior of the crank-connecting rod mechanism is modeled with a driving force applied in the crank-pin center, and compared in real time [8], optimum values of crank-connecting rod length were investigated for cutting multi-layered materials [9], an experienced self-adjusting PID control method was proposed for the position control of the crank-connecting mechanism [10], constant speed control to the crank-connecting rod mechanism is recommended for machine tools [11], the crank-connecting rod mechanism is used for the climbing part of the mast climbing robot [12], the crank-connecting rod is proposed as a part of the resonance control unit in the power output system [13], A selfadjusting control method based on generalized minimum variance control is proposed for the rotational speed control of the crank-connecting rod mechanism [14], crank-connecting rod is used in vibrating olive harvesters [15], crank-connecting rod is used in pressing [16], to design task space controllers for crankconnecting rod without using mechanism dynamics and linearization methods in which a new method is proposed [17] are available.…”