DD249122A1 - METHOD AND DEVICE FOR PERIODIC RELAY ADJUSTMENT - Google Patents

Abstract

The invention relates to a method and a device for complete relay adjustment. The aim of the invention is to reduce the labor cost and saving labor and material. The object is to provide a method and a device in which complete but still unadjusted relays can be completely adjusted with only one device. According to the invention, the object is achieved in that the armature travel is automatically adjusted, the current position of the closing spring is determined after electrical switching of the relay and, starting from this position, the spring set of the relay is adjusted. Furthermore, the fact that the tensioning device, consisting of adjusting pin and positioning unit existing bending tool for the anchor travel, the adjusting pin and positioning existing bending tool for the spring set, the displacement measuring system consisting of a rigid spring with applied strain gauges existing force measuring system and Ankerfixiereinrichtung in a common body are. At the same time the force measuring system is designed as a force measuring device and Lagepositioniersystem. figure

Description

The relay, which has to be fully adjusted, can be fixed in space by means of the clamping device. The bending tools for the anchor travel and the spring set, the force and the Wegmeßsystem and Ankerfixiereinheit are linearly positionable by incremental position plates and rotation-translation converter.

The bending tool for the spring assembly, the force measuring system and the Ankerfixiereinheit can be brought into disengagement, for example by pneumatic drives. The entire device is completed by a computer.

By the combination of two adjustment methods and the use of a combined device for carrying out the method device elements, such as stepper motor-controlled positioning units and elements of the control electronics can be saved.

Due to the use of only one device auxiliary times are saved at the same time, since additional clamping and supplying the relay to be adjusted deleted. The adjustment times shorten, since the actuators are in the action plane.

The combination of the measuring spring with the stepper motor-controlled positioning unit allows simultaneous measurement of paths and forces, which contributes to a further rationalization of the method. Furthermore, the process sequence according to the invention optimizes the relay parameters.

Ausführungsbeispie!

The invention will be explained in more detail below using an exemplary embodiment.

The accompanying drawing shows the perspective view of the device according to the invention.

The device is constructed so that the positioning units 1 to 4 are firmly fixed to a horizontal frame plate, not shown in the drawing.

The relay to be fully adjusted is brought into the working position shown in the drawing by means of a feeder in which it is electrically adapted. Here, the base 19 are fixed with the illustrated as arrows tensioning device 18 and the yoke 22 with the reproduced as arrows tensioning device 20 and thus the entire relay.

A position measuring system 10 is combined with the positioning unit 4. The free end of the measuring system ίθ is designed so that it always rests against the gate 14 of the relay. For better utilization of the relay parameters in the adjustment process, the position measuring system 10 was combined with the positioning unit 4, so that the free end of the position measuring system 10 rests against the link 14 only with a defined force. The force measuring system consists essentially of a rigid spring 11 with applied strain gauges, is rotatably mounted on an axle 5 and can, in order to guarantee backlash, additionally braced. On the rigid spring 11, a stop 11 'is arranged, which ensures a secure and defined point of attack on the closing spring 15, switching spring 16 or opening spring 17.

On the axis 5, the Ankerfixiereinrichtung 12 is further rotatably arranged. The Ankerfixiereinrichtung 12 can be raised if necessary or lowered to the gate 14 and then also braced for freedom to play. The force measuring system and the anchor fixing device 12 are actuated by the positioning unit 3.

The bending tool for the spring set consists of the adjusting pin 9, which is actuated by the positioning unit 2. The adjusting pin 9 for the spring set is designed for reasons of stability oval and can be moved depending on the working position in the direction of the double arrow 7 between the relay springs or vice versa.

The adjustment movement of the adjusting pin 9 is effected by the positioning unit 2.

The bending tool for the anchor travel consists of the adjusting pin 8, which is moved by the positioning unit 1. The adjusting pin 8 for the armature 13 is fixedly connected to the positioning unit 1 and can be moved in the direction of the double arrow 6. With this assembly, it is possible to move the armature 13 to the core of the coil 21 or to adjust the Ankerweg in the prescribed tolerance range with pivoted Ankerfixiereinrichtung 12. The relay can also be electrically energized via the coil 21 and thus the armature 13 can be actuated.

The control of the movements of the positioning units 1,2,3 and 4 takes ei η computer by registering the respective positions of the adjustment, stores the converted electrical signals, comparing them with the setpoints and depending on the initial state of the relay springs new signals to further process the Positioning units 1, 2, 3 and 4 provides or terminated the adjustment process.

Furthermore, the computer controls displays that provide information about the respective operating state of the device, reached Justierungergebnissebzw. give occurred errors, and provides stored adjustment parameters for subsequent evaluations.

Claims (3)

Invention claim: 1. A method for complete relay adjustment, characterized in that the armature automatically adjusted, the current position of the closing spring (15) determined after electrical switching of the relay and adjusted starting from this position of the spring set. 2. A device for carrying out the method according to item 1 with a tensioning device for the relay, each a bending tool for the anchor travel and the spring set, a position measuring system, a force measuring system and an anchor fixing, characterized in that the tensioning device (18; Adjustment pin (8) and positioning unit (1) existing bending tool for the anchor travel, the adjusting tool from (9) and positioning unit (2) existing bending tool for the spring set, the position measuring system (10), essentially of a rigid spring (11) with applied Strain gauge existing Kraftmeßsystem und.die Ankerfixiereinrichtung (12) are arranged in a common base body. 3. A device according to item 2, characterized in that the substantially consisting of a rigid spring (11) with applied strain gauges existing force measuring both as a force measuring and Lagepositioniersystem for the closing spring (15), the switching spring (16) or the Öffnerfeder (17 ) is executed. For this 1 page drawing Field of application of the invention The invention relates to a method and an associated device for complete automatic and functional adjustment of electromagnetic relays. Characteristic of the known technical solutions It is known that to ensure the function of relay defined anchor paths, contact forces and contact distances must be adjusted by bending the corresponding relay parts. The bending of the armature and the contact springs is done by hand by means of suitable bending tools or by means of an automated device for bending the armature and an additional automated device for bending the contact springs. By using two, spatially separate automated devices for complete relay adjustment a relatively high Arbeitszeitäufwand is recorded. In addition, the relay characteristics necessary for ensuring the reliable relay function anchor travel on the one hand and contact forces and contact distances on the other hand, must be set with unnecessarily tight tolerances. The known automated devices according to DD-WP 153751 and DD-WP 216132 have the disadvantage that for the complete adjustment of electromagnetic relays two spatially separate machines or automated devices are required, whereby additional manpower required for operation. Furthermore, an intermediate storage and an additional transport from machine to machine is necessary. In addition, the spatially separate adjustment of armature and contact springs requires an unnecessarily high setting accuracy of the relay characteristics, which at the same time a high inspection effort is required. Object of the invention The aim of the invention is a method and apparatus for complete relay adjustment, with which the labor cost is reduced, labor and material saved and always functionally reliable adjustment of the relay characteristics is guaranteed. Explanation of the essence of the invention The invention has for its object to provide a method and apparatus for complete relay adjustment, in which completely assembled but still unadjusted relay can be completely adjusted with only one device. According to the invention, the object is achieved in terms of the method in that the anchor travel automatically adjusted, the current position of the closer fields after electrical switching of the relay determined * and adjusted starting from this position of the spring set of the relay. A further feature of the invention is the apparatus consisting essentially of a tensioning device, an armature path bending tool consisting of a positioning unit and an adjusting pin, a spring set replacement tool consisting of a positioning unit and an adjusting pin, a positionable position measuring system and a switchable armature fixing unit and consists of a rigid spring with stop and applied strain gauges switchable force measuring system. The anchor fixing unit and the force measuring system can be positioned together.