CS201741B1

CS201741B1 - Method of recording the operations at the mechanized resistance welding and device for the said method

Info

Publication number: CS201741B1
Application number: CS488578A
Authority: CS
Inventors: Roman Minarik; Viliam Vida; Jan Zvonik
Original assignee: Roman Minarik; Viliam Vida; Jan Zvonik
Priority date: 1978-07-21
Filing date: 1978-07-21
Publication date: 1980-11-28

Description

Vynález sa týká sposobu snímania operácií pri mechanizovanom odporovom zváraní, najma na karuselových prípravkoch s indikáciou přechodu zváracieho prúdu a zariadenia pre tento spósob.The invention relates to a method for sensing operations in mechanized resistance welding, in particular on a carousel junction indicating a welding current transition, and a device therefor.

Doteraz sa robili jednotlivé operácie zvlášť a ich kontrola sa vykonávala až po ukončení operácií v ďalšej vol’nej polohe. V případe, že takáto kontrola operácií sa nerobí, je ohrozená spolahlivosť funkcie, móže nastať poškodenie prípravkov, zvýši sa poruchovosť a zmetkovitost výroby. Toto bolo nevýhodné tiež preto, lebo pre každú operáciu a kontrolnú operáciu bola potřebná osobitná volná poloha, čím narastal počet poloh i zváracích prípravkov.Up to now, individual operations have been performed separately and only checked after the operations in the next free location. If such control of operations is not performed, the reliability of the function is compromised, the products can be damaged, the failure rate and rejectability of the production can be increased. This was also disadvantageous because a separate free position was required for each operation and control operation, increasing the number of positions and welding jigs.

Vynálezom sa uvedené nedostatky do značnej miery odstránia. Podstata sposobu snímania operácií pri mechanizovanom odporovom zváraní, najma na karuselových zváracích prípravkoch s indikáciou přechodu zváracieho prúdu podlá vynálezu spočívá v tom, že u každej operácie sa kontrolným dvojpolohovým snímačom sleduje správnost vykonávania operácie súčasne v jej priebehu. Přitom výstupy jednotlivých dvojpolohových snímá,čov sa zaznamená vajú v spoločnom ovládaní sa účelom ovládama návaaného stroja, napr.The above-mentioned deficiencies are largely eliminated by the invention. The principle of the method of sensing operations in mechanized resistance welding, in particular on the carousel welding devices with the indication of the welding current transition according to the invention is that in each operation the control two-position sensor monitors the correctness of the operation simultaneously. At the same time, the outputs of the individual two-position sensors are recorded in a common control for the purpose of controlling the machine to be wound, e.g.

stroja na valcovanie závitov, blokovania vadných operácií a za účelom signalizácie spojenej so zastavením zváracieho stroja a návazného stroja, ak nastáva vadná operáeia.a thread rolling machine, blocking of faulty operations and for signaling associated with stopping of the welding machine and the downstream machine if faulty operation occurs.

Spósob podlá vynálezu sa vykonává zariadením, ktoré podlá vynálezu sa skládá zo zváracieho stroja so zabudovaným zdrojom indukčného snímača. Na zváracom stroji je upevněný otočný stol so zváracími přípravkami, pričom zvárací stroj je ovládaný z ovládacej skrine, v ktorej je umiestnený časovač a spínač zváracieho prúdu, pripojenej na elektrický rozvádzač. Nad otočným stolom sú umiestnené dva dvojpolohové snímače pre kontrolu naloženia zváraných dielcov, riadené z pvládania nakladačov. Prúdové relé pre kontrolu přechodu zváracieho prúdu je umiestnené vo zváracom stroji a připojené na ovládaciu skriňu. Indukčný snímač pre snímanie vybratia zvareného dielca je umiestnený nad prípravkom, z ktorého sa právě vyberá zvarený dielec a připojený cez zdroj indukčného snímača k ovládacej skříni, ku ktorej je připojené tiež blokovanie a signalizácia. Ďalej z ovládacej skrine je vyvedený výstup na návazný stroj, napr. stroj na valcovanie závitov. 'The method according to the invention is carried out by an apparatus which according to the invention consists of a welding machine with a built-in source of an inductive sensor. A rotary table with welding jigs is mounted on the welding machine, the welding machine being operated from a control box in which a timer and a welding current switch connected to the electrical switchboard are located. Above the rotary table are located two two-position sensors to control the loading of welded parts, controlled from the loading of loaders. The current relay for checking the welding current transition is located in the welding machine and connected to the control box. An inductive sensor for sensing the removal of the welded component is located above the jig from which the welded component is being removed and connected via the inductive sensor source to the control box, to which also the blocking and signaling is connected. Furthermore, an output to the downstream machine, e.g. thread rolling machine. '

Vynálezom sa dosahuje zvýšenie spolahlivosti funkcie, kontrola činnosti nakladačov, žvároma, vyberania zvarených dielcov z prípravkov, ako aj možnost syňchronizácie zváracieho stroja s návazným strojom, Signály získané zo snímačov jednotlivých operách sa po spracovaní v případe vadnej operácie signalizujú svetelne, čo je výhodné pre obsluhu. Získané signály sa v případe vadnej operácie po spracovaní v ovládacej skříni využijú na automatické zastavenie stroja, čím sa zabráni poškodeniu prípravkov a nakladačov. Týmto sa skráti tiež stratový čas na odstraňovanie vadných operácií.The invention achieves an increase in the reliability of the function, the control of the operation of the loaders, the weld, the removal of the welded parts from the jigs, and the possibility of synchronization of the welding machine with the following machine. . In the event of a faulty operation after processing in the control box, the signals obtained are used to automatically stop the machine, thereby preventing damage to the jigs and loaders. This will also reduce the loss of time for the removal of defective operations.

Příklady spósobu snímania operácií pri mechanizovaném odporovom zváraní, najma na karuselových prípravkoch s indikáciou přechodu zváracieho prúdu podl’a vynálezu :Examples of the method of sensing operations in mechanized resistance welding, in particular on carousel jigs with welding current transient indication according to the invention:

Sposob operácie snímania nakladenia dielcov do ' zváracích prípravkov sa prevádzal dvojpolohovým snímačem. Správnosť naloženia sa přitom sledovala dlžkou zasunutia zváraných dielcov do zváracích prípravkov.The method of sensing the loading of the parts into the welding jigs was carried out by a two-position sensor. The correct loading was monitored by the length of insertion of the welded parts into the welding jigs.

Operácia přechodu zváracieho prúdu sa snímala prúdovým relé zapojeným do zváracieho obvodu.The welding current transition operation was sensed by a current relay connected to the welding circuit.

Operácia vybratia zvarených dielcov zo zváracieho přípravku sa snímala bezdotykovým koncovým spínačom.The operation of removing the welded parts from the welding jig was sensed by a non-contact limit switch.

V prípadoch, keď sa niektorá operácia nevykonala správné, výstupné signály z jednotlivých uvedených snímačov sa spracovali v spoločnom ovládaní a ich povel sa využil na signalizovanie poruchového stavu a na zastavenie ďalšieho pracovného cyklu.In cases where any operation was not performed correctly, the output signals from each of these sensors were processed in common control and their command was used to signal a fault condition and to stop the next duty cycle.

Příklad prevedenia zariadenia podl’a vynálezu je znázorněný na pripojenom výkrese, kde obrázok představuje schématické usporiadanie zariadenia.An example of an embodiment of the device according to the invention is shown in the attached drawing, in which the figure represents a schematic arrangement of the device.

Zariadenie na prevádzanie spósobu podlá vynálezu sa skládá zo zváracieho stroja T so zabudovaným zdrojom Z indukčného snímača K3. Na zváracom stroji T je upevněný otočný stol S so zváracími přípravkami PÍ až P6. Přitom zvárací stroj T je ovládaný z ovládacej skrine A, v ktorej je umiestnený časovač a spínač E zváracieho prúdu, pripojenej na elektrický rozvádzač R. Nad otočným sto-The apparatus for carrying out the method according to the invention consists of a welding machine T with an integrated source Z of the inductive sensor K3. The rotary table S with the welding jigs P1 to P6 is mounted on the welding machine T. The welding machine T is controlled from the control box A, in which the welding current timer and switch E are connected, connected to the electrical switchboard R. Above the rotary

Claims

. T. Method of sensing operations in mechanized resistance welding, especially on carousel welding devices with indication ^! Ciou switching the welding current, characterized in that in each operation, the control on-off sensor monitors the correctness of the implementation of the operation at the same time during the visit, the outputs of the two position sensors, the entry ^J and report to a common control in order to control the follow-up of the machine, such as machines, thread rolling , misalignment of faulty operations and for the purpose of signaling associated with the stopping of the welding machine and the downstream machine if a faulty operation occurs.

2. Apparatus for transferring the stage according to point 1, characterized in that it consists of a welding machine (T) with a built-in source (Z) of an inductive sensor (K3), the welding machine (T) being mounted with a rotary fracture S two-position sensors ΚΙ, K2 for checking the position of welded parts, controlled from the control of loaders N. The current relay B for checking the welding current passage is located in the welding machine T and connected to control box A. Inductive sensor K3 P5 and connected via the source Z of the inductive sensor K3 to the control box A, to which the blocking and signaling H1 to H4 are also connected. Further, the output box A is led to an adjacent machine V, for example a thread rolling machine.

The welding fixture P1, which is on the turntable S, is loaded with one of the welded parts by a loader. The loading of the part is indicated by the limit switch K1. After loading of the welded part, the rotary table S is rotated by one position and the second of the welded parts is loaded into the fixture P2 by the loader. The loading of the part is indicated by the limit switch K2. After turning between the electrodes of the welding press T, the parts are welded in fixture P4, whereby the welding current transition is indicated by current relay B. After rotating fixture P5 to the withdrawal position, the welded components are removed by the ejector, checking the withdrawal by inductive sensor K3. A faulty operation is reported to the operator by a light signal. The signal lamp H1 signals a faulty loading operation of the pirate welded part. The signal lamp H2 indicates a faulty loading operation of the second welded member. The signal lamp H3 indicates that there is no welding current transition. The H4 signal lamp indicates that there has been no removal of welded parts from the welding fixture. In addition to signaling, in the event of a faulty operation, the operation of the pivot shaft 6 is blocked so that it does not rotate to the next position.

BACKGROUND OF THE INVENTION a table (S) with welding devices (P1 to P6) wherein the welding machine (T) is controlled from a control box (A) in which a welding current timer and switch (E) connected to the electrical switchboard (R) the rotary table (S) is equipped with two two-position sensors (K1, K2) for loading load control, controlled from the loader control (N), current relay (B) for welding current control is placed in the welding machine (T) and connected to a control box (A), an inductive sensor (K3) for sensing the removal of the welded part is located above the fixture * (P5) and connected via the source (Z) of the inductive sensor (K3) to the control box (A), signaling (H1 to H4), output from the control box (A) to a downstream machine (V), for example a thread rolling machine.