CO<sub>2</sub> gas protects the robot interface of welder

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  • source:TRIANA CNC Machining
In modern industry, the robot is used in great quantities, arc welding machine implement the important member that the person regards industry as the robot, in get developing quickly in last few years. And the CO2 energy of life that covers suitably with its maintains welder and spot welding aircraft, there also were a variety of forms in the union of electronic respect. Arc welding machine implement the person is industrial robot and arc solder power source what the high automation of organic union, intelligence changes is flexible solder system, both union has machine already, also have an electron. To CO2 gas protects welder and character, the union of mechanical respect basically is the join of welding torch and manipulator; The union of electronic respect is the robot interface that passes welder control and collect what realize pair of welder solder the information of the process. CO2 gas protects the robot interface of welder to want to realize 3 kinds of functions: 1.

To the control of welder condition: Aspirated, send silk, reel off raw silk from cocoons and solder. 2.

To soldering the control of parameter: Export control of voltage control, speed sending silk, some welder still have the control of electronic reactor. 3.

Welder gives the feedback of the robot signal: Signal of signal of success removing arc, electric arc voltage, solder voltaic signal and signal sticking silk. The welder of complete digitlization and robot communication use serial interface of the standard commonly, wait like RS232. Some welder contain special automatic solder port. Basically will discuss below, how is outfit arc welding machine added on common remote control interface implement the person's interface. Domestic CO2 gas defends sort of interface of welder remote control various, but the amount is more, have have 3 kinds representatively: Means of means of means of 6 lines remote control, 9 lines remote control, 14 lines remote control. The robot interface that gas of CO2 of means of 6 lines remote control protects welder means of 6 lines remote control: Will realize voltage adjustment by 3 lines, send filar adjustment, send silk and solder, control of additionally 3 lines sends filar motor amiable a powerful person. The control cable of such machine sending silk can use 6 core, compare with vintage 9 lines remote control, the lengthen of cable of Electromechanical sending silk is more convenient. Analyse the control principle of remote control box above all, if the graph is shown 1 times " voltage adjustment " and " speed sending silk is mediated " signal conveys by a line, "Send silk " and " solder " signal conveys by another line, the 3rd line is common thread. The remote control of classics of square wave signal of 1kHz receives potentiometer VR1, VR2 to go up, as a result of the choice of D1, D2, VR1 can adjust only the extent that loses half, VR2 adjusts half extent, transmit two to adjust on a line so signal. On welder control plate, fasten wave of the other side through cent wave and the half demodulation that lose half, depart gives voltage adjustment signal and electric current to adjust signal. Press switch sending silk, r3 and R4 establish ties, the voltage that sends to control plate is R3 and R4 the voltage that go up and; Press welding torch switch, the voltage that sends to control plate is the voltage on R4 only, control plate basis the different pressure ratio having report of voltage relatively implement divisional signal sending silk and solder signal. Graph principle of control of box of remote control of means of 16 lines remote control is expressed 1 in include welder the working voltage of each interface, arc welding machine implement the voltage of person correspondence interface and the other condition that realize each function, see from this, arc welding machine implement quantity of person interface imitate is in 0 to + 10V limits, switch measures the form that often opens contact with relay to convey, relay is sucked close carry out corresponding movement. In the signal that the robot gives welder, "Aspirated " signal often opens contact by relay and receive switch trying gas to go up; Implementation " send silk " , " reel off raw silk from cocoons " , " solder " function, need an arc welding machine implement the switch quantitative change that the person gives out measures welder into corresponding imitate, come true " reel off raw silk from cocoons " when the function, still need the voltage polarity that switch sends a relay filar motor, make its invert. "Voltage adjustment " , " send filar adjustment " need an arc welding machine implement the person's 0V comes + the voltage that the voltage changeover of 10V needs into welder. In the feedback signal of Nextpage welder, "Signal of electric arc voltage " , " solder voltaic signal " by Huo Er sensor outputs end to take signal from welder directly. "Solder voltaic signal " classics comparator arises " signal of success removing arc " , this signal is the basis of robot shift welding torch. Solder when the end if welding wire is stuck to workpiece, bad work or jig are played in the meeting when welding torch is raised. "Signal sticking silk " can let a robot know to whether stick silk, in order to prevent this kind of accident. Solder after the end, detect voltage of auxiliary power source is formed " signal sticking silk " . The block diagram that CO2 of means of 6 lines remote control enrages the robot interface that protects welder is shown 2 times like the graph. Graph the CO2 gas of means of 9 lines remote control protects the robot interface that gas of CO2 of means of 26 lines remote control protects welder the robot interface of welder means of 9 lines remote control: Will come true by 5 lines " voltage adjustment " , " send filar adjustment " , " send silk " , 5 functions, control of additionally 4 lines sends silk motor, gas a powerful person and deferent " solder " . The control cable of such machine sending silk is 9 core, although inconvenience sends filar Electromechanical the lengthen of cable, but the interface with the robot is more intuitionistic. The control principle of means of 9 lines remote control is simpler, if the graph is shown 3 times, voltage adjustment and signal of mediation of speed sending silk give out directly by potentiometer, signal sending silk and solder signal conveys by two lines. Principle of control of box of remote control of means of remote control of line of graph 3 9 is expressed 2 in include welder the working voltage of each interface, arc welding machine implement the voltage of person correspondence interface and the other condition that realize each function, can see means of 9 lines remote control compares pattern of 6 lines remote control from this more intuitionistic, according to expressing the robot of 2 designs interface board block diagram is like a graph 4. "Signal of electric arc voltage " , " solder voltaic signal " , " signal of success removing arc " , " signal sticking silk " form as identical as means of 6 lines remote control. Graph the CO2 gas of means of 14 lines remote control protects the robot interface that gas of CO2 of means of 49 lines remote control protects welder the function of remote control interface of means of 14 lines remote control abounds the robot interface of welder, it is the standard of a kind of interface of the American welder such as Lincoln, Miller. "Aspirated " , " send silk " , " reel off raw silk from cocoons " , " solder " , " send filar adjustment " send directly serve filar board, the interface of the robot board want installation to be inside machine sending silk. "Voltage adjustment " the limits of signal and robot interface are identical, welder interface still is offerred " electric arc voltage " and " solder electric current " signal, such mixing robot interface is very convenient. If the interface block diagram of means of 14 lines remote control pursues 5, the control principle of means of 14 lines remote control is simpler. Express 3 it is welder the working voltage of each interface, arc welding machine implement the voltage of person correspondence interface and the other condition that realize each function. Nextpage pursues the robot interface that box of remote control of means of 514 lines remote control controlled a principle to devise way of 14 lines remote control according to afore-mentioned data board, if pursue,6 are shown. Can see from the graph, this is the simplest in circuit of 3 kinds of interface, "Electric arc voltage " and " solder electric current " signal welder offers directly. "Signal of success removing arc " , " signal sticking silk " form at interface of robot of means of 6 lines remote control identical. Graph the robot interface that gas of CO2 of means of 614 lines remote control protects welder 3 kinds of afore-mentioned arc welding machine implement person interface circuit is had certain representative, what can enrage the robot interface circuit that maintains welder as CO2 not only is referenced, also can serve as argon arc solder, plasma solder and Plasma Cutting machine to add the reference that holds robot port. Adopt many practice, summed up CO2 gas to protect welder to add outfit robot interface at 2 o'clock experience: 1.

The signal of the signal of the robot and welder must be kept apart. Switch quantity can be kept apart with smooth Ou, relay, imitate quantity uses the segregation such as linear light Ou, go the line of the robot and go the line of welder wants departure. 2.

When adding outfit robot interface, with altering the function of former welder and new function are a principle. The signal of welder should be carried from remote control interface, output and take on switch, absolutely not OK from circuit board go up to take signal directly. The circuit of interface of 3 kinds of robots in the article is to use simulative, usable also sheet piece the robot interface circuit of machine design number. CNC Milling