Forces at the Main Mechanism of a Railbound Forging Manipulator
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صندلی اداریAbstract
Forging manipulators have become more prevalent in the industry today. They are used to manipulate objects to be forged. The most common forging manipulators are moving on a railway to have a greater precision and stability. They have been called the railbound forging manipulators. In this paper we determine the driving forces of the main mechanism from such manipulator. Forces diagram shows a typical forging manipulator, with the basic motions in operation process: walking, motion of the tong and buffering. The lifting mechanism consists of several parts including linkages, hydraulic drives and motion pairs. Hydraulic drives are with the lifting hydraulic cylinder, the buffer hydraulic cylinder and the leaning hydraulic cylinder, which are individually denoted by c1, c2 and c3. In this work considering that the kinematics is being solved it determines the forces of the mechanism. In the first place shall be calculated all external forces from the mechanism (The inertia forces, gravitational forces and the force of the weight of the cast part). Is then calculated all the forces from couplers.
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References
BALDASSI, M. (2003) Open die forging presses with manipulators, Forging, v. 14, n. 5, p. 16–18.
CHEN, G. L.; WANG, H.; ZHAO, K.; LIN, Z. Q. (2009) Modular calculation of the Jacobian matrix and its application to the performance analyses of a forging robot, Advanced Robotics, v. 23, n. 10, p. 1261–1279.
GAO, F.; GUO, W. Z.; SONG, Q. Y.; DU, F. S. (2010) Current Development of Heavy-duty Manufacturing Equipment, Journal of Mechanical Engineering, v. 46, n. 19, p. 92-107.
GE, H.; GAO, F. (2012) Type Design for Heavy-payload Forging Manipulators, Chinese Journal of Mechanical Engineering, v. 25, n. 2, p. 197-205.
HEGINBOTHAM, W. B.; SENGUPTA, A. K.; APPLETON, E. (1979) An ASEA robot as an open-die forging manipulator, in Proceedings of the Second IFAC/IFIP Symposium, p. 183–193, Stuttgart, Germany.
LI, G.; LIU, D. S. (2010) Dynamic Behavior of the Forging Manipulator under Large Amplitude Compliance Motion, Journal of Mechanical Engineering, v. 46, n. 11, p. 21-28.
LIU, D. S.; LI, G.; GUO, X. L.; SHANG, Y. G.; LIU, D. H. (2010) Performance Optimization of forging manipulator during the whole forging stroke, in Proceedings of the International Conference Intelligent Robotics and Applications (ICIRA ’10), p. 305–316.
PETRESCU, F. I.; PETRESCU, R. V. (2013) Cinematics of the 3R Dyad, in journal Engevista, v. 15, n. 2, p. 118-124, August 2013, ISSN 1415-7314. Available from: http://www.uff.br/engevista/seer/index.php/engevista/article/view/376.
PETRESCU, F. I.; PETRESCU, R. V. (2012a) Kinematics of the Planar Quadrilateral Mechanism, in journal Engevista, v. 14, n. 3, p. 345-348, December 2012, ISSN 1415-7314. Available from: http://www.uff.br/engevista/seer/index.php/engevista/article/view/377.
PETRESCU, F. I.; PETRESCU, R. V. (2012b) Mecatronica – Sisteme Seriale si Paralele, Create Space publisher, USA, March 2012, ISBN 978-1-4750-6613-5, 128 pages, Romanian edition.
PETRESCU, F. I.; PETRESCU, R. V (2011) Mechanical Systems, Serial and Parallel – Course (in romanian), LULU Publisher, London, UK, February 2011, 124 pages, ISBN 978-1-4466-0039-9, Romanian edition.
PETRESCU, F. I.; GRECU, B.; COMANESCU, A.; PETRESCU, R. V. (2009) Some Mechanical Design Elements. In the 3rd International Conference on Computational Mechanics and Virtual Engineering, COMEC 2009, Braşov, October 2009, ISBN 978-973-598-572-1, Edit. UTB, p. 520-525.
PETRESCU, F. I. (2014) Sisteme mecatronice seriale, paralele și mixte. Create Space publisher, USA, February 2014, ISBN 978-1-4959-2381-4, 224 pages, Romanian edition.
SHEIKHI, S. (2009) Latest developments in the field of open-die forging in Germany, Stahl und Eisen, v. 129, n. 4, p. 33–39.
YAN, C.; GAO, F.; GUO, W. (2009) Coordinated kinematic modeling for motion planning of heavy-duty manipulators in an integrated open-die forging center, Journal of Engineering Manufacture, v. 223, n. 10, p. 1299-1313.
ZHAO, K.; WANG, H.; CHEN, G. L.; LIN, Z. Q.; HE, Y. B. (2010) Compliance Process Analysis for Forging Manipulator, Journal of Mechanical Engineering, v. 46, n. 4, p. 27-34.