Constant Pressure Control for Energy Efficient Lathe Turret

Jyh Chyang Renn; Wen Jen Hsu; Yun Ruei Li

doi:10.4028/www.scientific.net/KEM.661.3

Paper Titles

Preface and Committees

Constant Pressure Control for Energy Efficient Lathe Turret
p.3

On the Kinematic of Generalized Oldham Couplings
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Development of a Single Pulse Micro EDM System and to Manufacture Micro Spherical Probe Used in Micro CMM
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Polymer-Based Capacity Micromachined Ultrasonic Transducer for Surface Roughness Measurement
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Enhanced Grey Variable Structure Control Methodology of Parallel-Connected DC-AC Inverters for Ultra-Precision Machining
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Interference of Die Equipment for Hexagonal Flange Nut Forming Process
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Stress Analysis of Forging Dies for Inverse Extrusion
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The Effects of Grain Size and Lubrication on Micro Curl Forming Process of Metallic Thin Sheet
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 661Constant Pressure Control for Energy Efficient...

Constant Pressure Control for Energy Efficient Lathe Turret

Abstract:

Hydraulic system plays an important role in many power systems such as excavator, braking system of vehicle and machine tool. Generally speaking, hydraulic control system can be divided into two different driving concepts. The first one is the well-known valve-controlled system and the second one is the pump-controlled system. The former possesses the feature of fast dynamic response. However, the poor energy-saving performance is its major fault. On the contrary, the pump-controlled system has the significant advantage of energy-saving which meets the current demand in modern machine design, but has the disadvantage of slower dynamic response. With the advancement of electric-motor system, however, this disadvantage has been greatly improved. In this paper, the simulation analysis of a newly developed energy-efficient hydraulic CNC lathe turret based on constant pressure control scheme is presented. Instead of the conventional fixed displacement hydraulic pump, the new energy-efficient system utilizes an internal gear pump together with an AC servo motor as its driving power source. In addition, a closed-loop control scheme using PID control is adopted. From simulation results, the new energy-efficient design can reduce the waste of the output flow-rate of the pump through the relief valve that generally happens in conventional hydraulic lathe and then achieve the purpose of designing an energy-efficient hydraulic lathe.

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Periodical:

Key Engineering Materials (Volume 661)

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3-9

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.661.3

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Online since:

September 2015

Authors:

Jyh Chyang Renn*, Wen Jen Hsu, Yun Ruei Li

Keywords:

AC Servo Motor, CNC Lathe Turret, Energy Efficient, Pump-Controlled System

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References

[1] Chiang, M. H., Discussion of Hydraulic Energy-Saving Control, Machinery Monthly, (2011), 37(5).

Google Scholar

[2] Pan, Ke-Ru, Huang, Da-Wei and Cheng, Jen-Gung, Hydraulic Energy-Saving servo system, Machinery Monthly, (2012), 38(3).

Google Scholar

[3] N. N., Hydraulic Cam Type Lathe Turret, Catalogue of LIO-SHING., LTD, www. turret. com. tw/, LS-120, (2013).

Google Scholar

[4] N. N., Hydraulic Motor (OMM50), Catalogue of Sauer-Danfoss (US) Company, http: /www. sauer-danfoss. com/, (2013).

Google Scholar

[5] N. N., HES Series AC Servomotor, Catalogue of Delta Electronics, Inc., http: /www. delta. com. tw, (2012).

Google Scholar

[6] Renn, J. C., Cheng, C. Y. and Lin, M. H., Energy-Saving Design for Hydraulic Tube Bender, Journal of Energy and Power Engineering, 4(2014)1, (Serial No. 26), ISSN 1934-8975.

Google Scholar

[7] N. N., Report of Taipei International Machine Tool Show, (2012).

Google Scholar