CN208099569U - A kind of A.C. welder automatic control device - Google Patents

Abstract

The utility model discloses a kind of A.C. welder automatic control devices, it is related to A.C. welder control field, it includes A.C. welder, the electrode holder and control unit being electrically connected with A.C. welder, the A.C. welder is equipped with A.C. welder input terminal and A.C. welder output end, described control unit includes controller and power control circuit, the controller includes controller input terminal and controller output end, the electrode holder, A.C. welder output end is electrically connected with controller input terminal, controller output end is electrically connected by control line with power control circuit, the input terminal of the power control circuit is electrically connected to a power source, the output end of power control circuit is electrically connected with A.C. welder input terminal；The utility model is designed reasonably, be able to achieve A.C. welder automatically power off and power transmission, it is ensured that the normal work of A.C. welder, energy-saving safe have necessity of promotion.

Description

A kind of A.C. welder automatic control device

Technical field

The utility model relates to a kind of electric welding machine economize on electricity control field, specifically a kind of A.C. welder is automatically controlled Device.

Background technique

Original A.C. welder needs power transmission of closing a floodgate when in use, and power-off of operating a switch is needed after use.Work as weld part Position apart from welding machine farther out when power transmission power-off work just seem more cumbersome, therefore often occur after worker finishes the work, exchange is welded The normal power transmission of machine, convenient the phenomenon that using next time.In this way, electric welding wire often charges, it is not only dangerous, but also a large amount of electricity can be wasted Can, it is unfavorable for energy conservation, safety in production, and A.C. welder long-time energization idle running, service life will receive influence.

Utility model content

The utility model technical issues that need to address are to provide a kind of A.C. welder automatic control device, can be according to friendship The working condition of galvanic electricity welding machine automatically powers off, the safety of power transmission, economize on electricity circuit control device.

In order to solve the above technical problems, technical solution used by the utility model is：

The utility model includes A.C. welder, the electrode holder being electrically connected with A.C. welder and control unit, the exchange Electric welding machine is equipped with A.C. welder input terminal and A.C. welder output end, and described control unit includes controller and power supply control Circuit processed, the controller include controller input terminal and controller output end, the electrode holder, A.C. welder output end with The electrical connection of controller input terminal, controller output end are electrically connected by control line with power control circuit, the power supply control electricity The input terminal on road is electrically connected to a power source, and the output end of power control circuit is electrically connected with A.C. welder input terminal.

Further improvement of the utility model is：The controller includes voltage comparator and relay, the voltage Comparator is electrically connected with relay coil.

Further improvement of the utility model is：The power control circuit includes contactor and the normally closed touching of relay Point, the contactor include contactor coil and contactor normally opened contact, and the relay normally closed contact and contactor coil are electric Connection, one end of the contactor normally opened contact are electrically connected to a power source, and the other end is electrically connected with A.C. welder input terminal, is passed through The latching circuit control power supply and A.C. welder that relay normally closed contact, contactor coil and contactor normally opened contact are constituted are defeated Enter being switched on or switched off for end.

By adopting the above-described technical solution, the beneficial effect that the utility model obtains is：

The utility model relates to A.C. welders to automatically power off, the electricity-saving control device of power transmission, guarantee that A.C. welder exists Electric, idle operation power-off is obtained in welding process.When A.C. welder and welding position distance farther out when, can avoid A.C. welder Power-off, power transmission bring are loaded down with trivial details, and continuous power supply causes the risk of safety accident after reduction A.C. welder normal use, keep away simultaneously Exempted from the long-term idle running of A.C. welder and caused by electric energy loss.

The present apparatus uses circuit control, and when being able to achieve welding, controller sends a signal to power control circuit and controls electricity Source control circuit, which powers on, gives A.C. welder combined floodgate power transmission；When stopping welding, controller sends a signal to power supply control electricity Road simultaneously controls power control circuit and disconnects power supply and operate a switch power-off to A.C. welder.

By using the present apparatus be able to achieve A.C. welder automatically power off and power transmission, extend A.C. welder use the longevity Life is not only conducive to energy conservation and helps to keep the safety in production.Utility model works are reliable and stable, failure rate is low, and energy-saving effect is significant, It is without any requirement to A.C. welder type, amount of capacity, welding condition, distance.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the working principle diagram of the utility model controller；

Fig. 3 is the working principle diagram of the utility model power control circuit.

Wherein, 1, power control circuit；2, A.C. welder；3, controller；4, power supply；5, A.C. welder input terminal； 6, A.C. welder output end；7, electrode holder；8, controller input terminal；9, controller output end；10, control line.

Specific embodiment

The utility model is described in further details below with reference to embodiment：

A kind of A.C. welder automatic control device, structure are as shown in Figure 1 comprising A.C. welder 2, with exchange electric welding The electrode holder 7 and control unit that machine 2 is electrically connected, the A.C. welder 2 are equipped with A.C. welder input terminal 5 and A.C. welder Output end 6, described control unit include controller 3 and power control circuit 1, and the controller 3 includes 8 He of controller input terminal Controller output end 9, the electrode holder 7, A.C. welder output end 6 are electrically connected with controller input terminal 8, controller output end 9 are electrically connected by control line 10 with power control circuit 1, and the input terminal of the power control circuit 1 is electrically connected with power supply 4, electricity The output end of source control circuit 1 is electrically connected with A.C. welder input terminal 5.

As shown in Fig. 2, the controller 3 includes voltage comparator and relay, the voltage comparator and relay line Circle electrical connection, the voltage comparator is made of integrated circuit.As shown in figure 3, the power control circuit 1 is a control electricity Road, the control circuit include contactor and relay normally closed contact, and the contactor includes contactor normally opened contact and contact Device coil, the relay normally closed contact are electrically connected with contactor coil, and one end and the power supply 4 of contactor normally opened contact are electrically connected It connects, the other end is electrically connected with A.C. welder input terminal 5, and the connection of power supply 4 is controlled by latching circuit contactor normally opened contact Or it disconnects.

Relay normally closed contact, contactor coil and the contactor normally opened contact being arranged in power control circuit 1 are constituted certainly Lock circuit, various principles are as follows：When the relay coil in controller 3 obtains electric, the relay in power control circuit 1 is normal Closed contact disconnects, and contactor coil power loss contactor normally opened contact disconnects；When relay coil power loss in controller 3, power supply Relay normally closed contact closure in control circuit 1, contactor coil obtain electric, contactor normally opened contact closure.

Output end voltage is 70 volts or so of exchange when A.C. welder 2 works, and voltage can drop to exchange 35 when soldered Volt left and right, the comparison by the voltage comparator that is arranged in controller 3 to voltage, obtains two states, when not welding output be High voltage, at this moment voltage comparator control relay K coil obtain electric, and relay K normally-closed contact in power control circuit 1 is disconnected It opens, contactor KM coil blackout, contactor KM normally opened contact disconnects, and power supply 4 stops powering to A.C. welder 2；It is defeated when welding It is out low-voltage, at this point, voltage comparator controls relay K coil blackout, relay K normally-closed contact closure, contactor KM line Enclose electric, contactor KM normally opened contact closure, power supply 4 is powered to A.C. welder 2, realizes the normal work of A.C. welder 2.

A.C. welder 2, electrode holder 7 are electrically connected with the controller 3 being made of integrated circuit and electronic component, work as controller 3 detect electrode holder 7 weld when, voltage comparator of 8 welding signals being connected to of controller input terminal to controller 3, voltage ratio It analyzed compared with device, judge judging result passing to power control circuit 1 by control line 10 from controller output end 9, controlled Power supply 4 and A.C. welder input terminal 5 are connected, and are powered to A.C. welder 2, and electrode holder 7 realizes total pressure welding；When controller 3 is examined When measuring the stopping welding of electrode holder 7, voltage comparator of the controller input terminal 8 stopping welding signals being connected to controller 3, electricity It presses comparator to be analyzed, judge judging result passing to power control circuit 1 by control line 10 from controller output end 9, Control disconnects power supply 4, and the output end of power control circuit 1 and A.C. welder input terminal 5 is made to form open circuit, gives A.C. welder 2 power-off.All processes automatically control.

Therefore controller 3 can detect the working condition of A.C. welder 2 by voltage comparator, and pass through the work of detection Make state control relay K normally-closed contact connecting and disconnecting, so that control contactor KM coil obtains electric and power-off, and then passes through Contactor KM normally opened contact control A.C. welder 2 power-off and power transmission, realization automatically power off, the Energy Saving Control of power transmission.

The controller 3 and power control circuit 1 can be set in the inside of A.C. welder 2, also can be set and handing over The outside of galvanic electricity welding machine 2 is able to achieve the function of automatically powering off with power transmission.

Claims (3)

1. a kind of A.C. welder automatic control device, it is characterised in that：It includes A.C. welder（2）With A.C. welder （2）The electrode holder of electrical connection（7）And control unit, the A.C. welder（2）It is equipped with A.C. welder input terminal（5）With exchange Electric welding machine output end（6）, described control unit includes controller（3）And power control circuit（1）, the controller（3）Including Controller input terminal（8）And controller output end（9）, the electrode holder（7）, A.C. welder output end（6）It is defeated with controller Enter end（8）Electrical connection, controller output end（9）Pass through control line（10）With power control circuit（1）Electrical connection, the power supply control Circuit processed（1）Input terminal and power supply（4）Electrical connection, power control circuit（1）Output end and A.C. welder input terminal（5） Electrical connection.

2. a kind of A.C. welder automatic control device according to claim 1, it is characterised in that:The controller（3） Including voltage comparator and relay, the voltage comparator is electrically connected with relay coil.

3. a kind of A.C. welder automatic control device according to claim 2, it is characterised in that：The power supply control electricity Road（1）Including contactor and relay normally closed contact, the contactor includes contactor coil and contactor normally opened contact, described Relay normally closed contact is electrically connected with contactor coil, one end of the contactor normally opened contact and power supply（4）Electrical connection, it is another End and A.C. welder input terminal（5）Electrical connection, passes through relay normally closed contact, contactor coil and contactor normally opened contact structure At latching circuit control power supply（4）With A.C. welder input terminal（5）Be switched on or switched off.