A hybrid press system: Motion design and inverse kinematics issues

Kütük, M. Erkan; Dülger, L. Canan

doi:10.1016/j.jestch.2015.11.012

Cited by 7 publications

(4 citation statements)

References 14 publications

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“…Li et al [12] have given the classifications of hybrid fivebar linkages by using the unrestraint double-crank type. Kütük et al have then performed an experimental optimization [10,13]. A traditional trial and error approach is used to design a seven-bar press mechanism.…”

Section: Synthesis Of a Seven-bar Mechanismmentioning

confidence: 99%

“…Li and Zhang [9] have used a seven-bar mechanism press with hybrid driven case for deep drawing. M. E. Kütük [10] has performed a study on inverse kinematics issues on hybrid driven seven-bar mechanism with motion design for press application. The dimensions of a seven-bar hybrid press mechanism are found by using experimental optimization.…”

Section: Introductionmentioning

confidence: 99%

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Hybrid Seven-bar Press Mechanism

Kütük

Artan

Dülger

2018

Teh. glas. (Online)

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An optimization study with kinetostatic analysis is performed on hybrid seven-bar press mechanism. This study is based on previous studies performed on planar hybrid seven-bar linkage. Dimensional synthesis is performed, and optimum link lengths for the mechanism are found. Optimization study is performed by using genetic algorithm (GA). Genetic Algorithm Toolbox is used with Optimization Toolbox in MATLAB®. The design variables and the constraints are used during design optimization. The objective function is determined and eight precision points are used. A seven-bar linkage system with two degrees of freedom is chosen as an example. Metal stamping operation with a dwell is taken as the case study. Having completed optimization, the kinetostatic analysis is performed. All forces on the links and the crank torques are calculated on the hybrid system with the optimized link lengths

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Section: Synthesis Of a Seven-bar Mechanismmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Hybrid Seven-bar Press Mechanism

Kütük

Artan

Dülger

2018

Teh. glas. (Online)

Self Cite

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“…The theoretical research results include configuration design, mobility, trajectory planning, power matching, kinematics, dynamics, etc. [2][3][4][5][6][7][8][9][10][11][12]. HDM has been applied in many fields, especially press machine [6][7][8] and walking robot [9] are the most widely used.…”

Section: Introductionmentioning

confidence: 99%

Kinematics and Trajectory Planning of 3-PSS/7R Spatial Hybrid Re-dundantly Driven Mechanism

ZHANG,

LI,

LIANG

et al. 2024

mech

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A novel 3-PSS/7R spatial hybrid redundantly driven mechanism (HRDM) is proposed. The mechanism is driven by constant velocity (CV) motor and servo motor at the same time. The CV motor provides the main power for the system, and the servo motor plays the role of motion regulation. This system not only has the advantages of the traditional mechanical system, such as stable operation, large bearing capacity, but also can output controllable and adjustable flexible trajectory. The degrees of freedom of the mechanism are determined by the middle limb, which is called hybrid redundantly driven limb, which is driven by both CV motor and servo motor. Based on closed vector method, the position equation of the mechanism is established, and the velocity mapping matrix and acceleration change law of the mechanism are obtained. Further, the necessary and sufficient conditions for the mechanism to realize continuous trajectory and the relationship of rod constraints are obtained. The correctness of the kinematics equation and the smooth and controllable operation of the mechanism are verified by examples. The research results of this paper lay a foundation for the in-depth research and application expansion of spatial hybrid redundantly driven mechanism.

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“…In the work [9], crank press made of a single-circuit five-link linkage (2 DOF) with two degrees of freedom has a drive with an adjustable AC electric motor (CV). Dual-circuit hybrid crank presses with two degrees of freedom (2 DOF) are designed on the basis of seven-link lever mechanisms [10,11]. Hybrid presses use two engines, one of which "simulates" a CV-engine, prescribing a trajectory profile with a constant speed, the other allows to program the cyclogram of the technological process by controlling the servo motor.…”

mentioning

confidence: 99%

Numerical Experiment and Design of a Two-Rod Crank Knee Press with an Internal Layout of the Motor Drive

Tuleshov,

Akhmetova,

Kuatova

et al. 2023

Preprint

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In crank presses, an important role is played by the presence of actuators with dwell, in which, with continuous movement of the input links, the output working link remains stationary at some part of the work. The use of a high-class structural group (fourth class) expands the functionality of the crank press, including it can ensure the link dwell of the working link on a given section of movement during the required period of time. As a result of the conducted research, four variants of actuators of the crank knee press were designed. Due to the rational choice of the positions of racks and crosshead guide, the best layout of the dimensions of the press mechanism has been achieved, changing the coordinates of the racks accordingly allows to design a mechanism with upper or lower dwells of the working links. When synthesizing (selecting) parameters such as: l_2 and h, it is possible to obtain a height of different duration. All this is shown on the basis of a numerical experiment based on kinematic analysis. In addition, the complex structure of the mechanism makes it possible to ensure the exact link dwell, which cannot be achieved due to the well-known knee presses based on the second-class mechanism [21].

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A hybrid press system: Motion design and inverse kinematics issues

Cited by 7 publications

References 14 publications

Hybrid Seven-bar Press Mechanism

Hybrid Seven-bar Press Mechanism

Kinematics and Trajectory Planning of 3-PSS/7R Spatial Hybrid Re-dundantly Driven Mechanism

Numerical Experiment and Design of a Two-Rod Crank Knee Press with an Internal Layout of the Motor Drive

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