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[CN 201711461294.8] A virtual method of crank angle of toggle servo press
[CN 201711461294.8] A Crank Angle Virtual Method for a Toggle Type Servo Press Title: A Crank Angle Virtual Method for a Toggle Type Servo Press Application Number: CN 201711461294.8 Applicant: Nanjing Eston Automation Co., Ltd. Application Date: 2017-12-28 Patent Type: Invention Application The present invention provides a crank angle virtual method for a toggle type servo press, including the following steps: the mathematical model of the crank-slider mechanism of the crank-connecting rod servo press is established, the angle of the crank is solved by using the displacement of the slider, the function relationship between the displacement of the slider and the crank angle is obtained, the approximation of the crank angle is solved by iterative method, the corresponding table is further established, and the corresponding table is used to quickly query the crank angle corresponding to each slider displacement to realize the virtual calculation of the crank angle. The crank angle virtual method virtualizes the mathematical model of the relationship between the slider displacement and the crank angle of the toggle-link servo press, encapsulates the slider displacement as a bridge to establish a mapping relationship between the crank angle and the virtual crank angle, and presents the simplest mathematical model of the relationship between the slider displacement and the crank angle of the crank-link servo press to the machine tool user, thus simplifying the use difficulty of the machine tool user.
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