Servo Press Control System for Pressing Initiating Explosive Device

2021 ◽  
Keyword(s):  
Control System ◽  
Servo Press ◽  
Explosive Device

Control System Design for a New Servo Press

2008 ◽  
Vol 41 (2) ◽  
pp. 5782-5787 ◽  
Author(s):  
W.K. Yeung ◽  
J.P. Li ◽  
K. He ◽  
Y.X. Luo ◽  
C.T. Kong ◽  
...  
Keyword(s):  
Control System ◽  
System Design ◽  
Control System Design ◽  
Servo Press

Optimal Design of a Hybrid-Driven Servo Press and Experimental Verification

2010 ◽  
Vol 132 (3) ◽  
Author(s):  
Pei-Lum Tso
Keyword(s):  
Control System ◽  
Optimal Design ◽  
Energy Saving ◽  
Experimental Verification ◽  
Iterative Learning Control ◽  
Learning Control ◽  
Iterative Learning ◽  
Servo Press ◽  
Ac Motor ◽  
Control Theories

This paper focuses on a hybrid-driven servo press, which uses not only a servomotor but also a regular ac motor with a flywheel. A PC-based control system is developed based on both feedback and iterative learning control theories on a prototype. The stamping performance, improved forming ability, and energy saving merits have been verified by the experiment. The results show that the advantages of the hybrid-driven servo press have been validated, such as its energy saving features, flexible punch speeds, and adjustable strokes, for any kind of stamping operations.

Implementation of Precision Force Control for an Electro-Hydraulic Servo Press System

2012 ◽  
Vol 190-191 ◽  
pp. 806-809 ◽  
Author(s):  
Hong Ming Chen ◽  
Chun Sheng Shen ◽  
Ting En Lee
Keyword(s):  
Control System ◽  
Force Control ◽  
Force Sensor ◽  
Hydraulic Cylinder ◽  
Relief Valve ◽  
Servo Valve ◽  
Composite Control ◽  
Servo Press ◽  
Control Scheme ◽  
Hydraulic Servo

Based on the fuzzy method, a PC-based precision force control scheme is proposed for the electro-hydraulic servo press system. The main feature of proposed scheme is to develop a composite control of relief valve and flow servo valve. With the feedback of force sensor, the fuzzy-based control system is realized by LabVIEW for achieving the precision force control of hydraulic cylinder. In the experiments, a practical platform of hydraulic servo press system is used to demonstrate the effectiveness of proposed scheme. The testing results indicate the accurate output responses.

Synchronous Controller for Dual Servo Motor in Servo Press

2014 ◽  
Vol 494-495 ◽  
pp. 1175-1181 ◽  
Author(s):  
Shang Liang Chen ◽  
Dinh Hoai Nam ◽  
Nguyen Van Thanh
Keyword(s):  
Control System ◽  
Control Structure ◽  
Phase Error ◽  
Open Loop ◽  
Feedback Controller ◽  
Servo Motor ◽  
Motion Error ◽  
Servo Press ◽  
Position Controller ◽  
Zero Phase

This study shows the results of double servomotors synchronization controller (SC) for Mirco-precision servo press. Two systems are used in this study, one is the master motor and another is the slave motor. Each system is designed separately. Also, it is necessary to use the synchronous controller to minimize the synchronization error and the motion command is transmitted simultaneously to two motors. The control system for the master motor includes a feedback controller (FB) and a zero phase error tracking controller (ZPET). For the slave motor, only velocity is controlled. The feedback controller is a cascade control structure, velocity and position controller. It can make the output follows the command. In order to reduce synchronized motion error, two servomotors are synchronized by the SC. The results of simulation reveal that the performance of the overall control system is improved compare to open loop, the synchronous position error between two sliders were less than 4μmm.

A controller for safe, convenient operation of LaB6 emitters on electron-beam instruments

1983 ◽  
Vol 41 ◽  
pp. 408-409
Author(s):  
W. J. Abramson ◽  
H. W. Estry ◽  
L. F. Allard
Keyword(s):  
Electron Beam ◽  
Control System ◽  
Thermal Shock ◽  
Appropriate Care ◽  
Electron Guns ◽  
Tungsten Filaments ◽  
Order Of Magnitude ◽  
Main Components

LaB6 emitters are becoming increasingly popular as direct replacements for tungsten filaments in the electron guns of modern electron-beam instruments. These emitters offer order of magnitude increases in beam brightness, and, with appropriate care in operation, a corresponding increase in source lifetime. They are, however, an order of magnitude more expensive, and may be easily damaged (by improper vacuum conditions and thermal shock) during saturation/desaturation operations. These operations typically require several minutes of an operator's attention, which becomes tedious and subject to error, particularly since the emitter must be cooled during sample exchanges to minimize damage from random vacuum excursions. We have designed a control system for LaBg emitters which relieves the operator of the necessity for manually controlling the emitter power, minimizes the danger of accidental improper operation, and makes the use of these emitters routine on multi-user instruments.Figure 1 is a block schematic of the main components of the control system, and Figure 2 shows the control box.

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