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JPH0736960B2 |
A system for monitoring the position of a machine component, whose drive is provided with an electrohydraulic drive system which, in order to control the forward and backward movements of this machine component, comprises a follow-up adj...
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JPH07110004A |
PURPOSE: To obtain good responsiveness whether a piston rod of a servo cylinder moves in the critical direction or in the safe direction when a spool is in ordinary operation without standing at a stroke end. CONSTITUTION: When a piston ...
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JPH07110005A |
PURPOSE: To quickly and accurately position a work in a target position by moving the work to a target position by means of compressed air and then positioning the work to the target position by means of a motor. CONSTITUTION: A servo cy...
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JPH0729760B2 |
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JPH0783204A |
PURPOSE: To prevent process-down by controlling an air pressure signal or a valve opening signal as an output when abnormality is generated in a current signal. CONSTITUTION: A power circuit 12 for making a circuit power source by using ...
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JPH0777155A |
PURPOSE: To facilitate handling and save energy consumption by dispensing with a hydraulic source and its piping CONSTITUTION: An electric-driven motor 7 and a hydraulic volume device 2 having functions of a variable volume type hydrauli...
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JPH0771406A |
PURPOSE: To maintain compatibility between a flexible motion without any shock and high positional accuracy, and provide a positioning actuator pertinent for a manufacturing facility by allowing an intermediate stop position to be accura...
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JPH0771405A |
PURPOSE: To enhance the stability of the automatic stoppage of a work device at low speed by actuating the device to the side of a target position at unchanged speed without applying any automatic decelerated operation or the like, when ...
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JPH0718441B2 |
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JPH0712563B2 |
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JPH0711149B2 |
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JPH078604U |
[Purpose] The zero point adjustment of the output pressure in the electro-pneumatic positioner or the like can be easily performed from the outside without opening the casing of the electro-pneumatic conversion unit. [Constitution] A bia...
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JPH073312Y2 |
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JPH076899B2 |
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JPH076209B2 |
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JPH0727104A |
PURPOSE: To avoid adhesion due to mixed foreign matters in a working fluid by displacing the positions of the wall faces facing toward the same direction, out of the respective wall faces confining two chambers for introducing the pressu...
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JPH072362Y2 |
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JPH073241B2 |
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JPH073242B2 |
A system and method for pulse-width modulation of multiple solenoid-operated valves (26, 44) in an electrohydraulic servo system employing a microprocessor-based digital controller (10). Solenoid-energization pulse widths are identified ...
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JPH0685980U |
[Purpose] It is an object of the present invention to provide a hydraulic actuator capable of independently controlling the opening and closing of each valve body without installing a comparator and a servo valve for each valve body. [Co...
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JPH0648806Y2 |
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JPH06100201B2 |
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JPH0689848B2 |
A hydraulic system comprising a reversible variable displacement pump (10), a hydraulic servo motor (14,15) for controlling the direction and amount of displacement of the pump (10), a fluid motor (13) connected in parallel to the pump (...
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JPH0643713Y2 |
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JPH0689761B2 |
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JPH06300162A |
PURPOSE: To provide a control circuit of a proportional valve for shortening a response time of the proportional valve and eliminating a DC low voltage power supply required conventionally. CONSTITUTION: In a proportional control valve 1...
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JPH0684761B2 |
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JPH06300005A |
PURPOSE: To stop a slider accurately at a predetermined position in the middle of a cylinder stroke while preventing the slider from shock and slip to improve the life of a brake mechanism. CONSTITUTION: A piston 2 is received inside a c...
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JPH06297368A |
PURPOSE: To eliminate the stationary difference without deteriorating the system stability and secure the excellent transition responsiveness and permit the positioning with high precision. CONSTITUTION: As far a controller for controlli...
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JPH06300001A |
PURPOSE: To provide a hydraulic controller capable of automatic hydraulic control in a wide range and operation of an actuator with a manual operation under the automatic hydraulic control condition outside the operational range in the c...
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JPH0673403U |
[Purpose] To provide a positioner that can be easily attached to other equipment, etc., is suitable for miniaturization without restricting the installation space, and is inexpensive. [Constitution] A cylinder body 42 in which a fluid pr...
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JPH0670381B2 |
A time division multiplexed (TDM) hydraulic control system having a plurality of channels (12,14,16) each channel having a servo actuator (72,74,76) is disclosed. Electrical demand signals are arranged in TDM sequence and applied to a si...
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JPH0669325B2 |
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JPH06249202A |
PURPOSE: To correct the displace command value of a piston rod on the basis of a position deviation amount, while detecting correctly the position deviation of the piston rod generated on the position deviation amplifier of a hydraulic c...
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JPH0633201Y2 |
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JPH0665885B2 |
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JPH0665884B2 |
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JPH0665883B2 |
1. Linear drive with a piston-rodless piston (13) running linearly in a cylinder bore (12) of a cylinder housing (11), with cylinder heads (17, 18) terminating the cylinder housing (11) at the end faces, with a carriage (21) running on t...
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JPH06235402A |
PURPOSE: To set a propotional gain largely so as to increase the position accuracy of an action part by increasing the accuracy of speed measurement of the action part so as to increase the effect of speed feedback. CONSTITUTION: A fluid...
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JPH0662089B2 |
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JPH0661810B2 |
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JPH0660642B2 |
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JPH06507003A |
A positioner for use in pneumatic systems moves a pneumatic operator. The positioner is an electronic pilot positioner or electronic to pneumatic interface which provides accurate positioning of linear actuators in response to an electro...
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JPH0654124B2 |
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JPH06193601A |
PURPOSE: To improve the responsiveness by suppressing operation delay of an output rod caused by frictional resistance on the load side in the case of rod position controlling of a stepping cylinder. CONSTITUTION: Pressures P1, P2 on bot...
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JPH06193610A |
PURPOSE: To provide a flow rate controlling valve device which reduces the power loss, is not so affected by application of external force of an actuator, and shows satisfactory responsiveness. CONSTITUTION: A valve main body 23 is indep...
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JPH0651980B2 |
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JPH0648002B2 |
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JPH06159304A |
PURPOSE: To carry out positioning and speed control with high accuracy by stopping an actuator after maintaining the actuator at low speed for a prescribed time just before stopping the actuator, and correcting a next low speed maintaini...
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JPH06157050A |
PURPOSE: To eliminate or significantly lessen the undesirable effect relating to a mechanical device displaced by a pneumatic actuator. CONSTITUTION: The machine for forming glass containers from discrete gobs of molten glass has a mecha...
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