[0047] Example one
[0048] Such as Figure 1-2 As shown, the present invention provides a dual-gun dual-wire welding device, comprising: a welding module 1, two welding modules 1 are provided, the welding modules 1 are respectively provided on two opposite sides of the workpiece to be welded, and two welding modules 1 Corresponding settings; the welding module 1 includes a welding bracket 11, a welding torch clamping mechanism 12, a control mechanism 13 and a moving mechanism 14. The upper part of the welding bracket 11 is provided with a welding torch clamping mechanism 12 and a control mechanism 13, and the rear end of the welding torch clamping mechanism 12 A control mechanism 13 is provided, and a moving mechanism 14 is provided at the lower part of the welding bracket 11;
[0049] The main purpose is to electromagnetically absorb the welding trolley on the platform, the front welding torch clamping mechanism 12 clamps the welding torch, and the guide wheel 51 is attached to the workpiece. With its automatic welding bead tracking function, two trolleys operate at the same time to realize the simple dual-gun dual-wire welding function;
[0050] The welding torch clamping mechanism 12 is used to clamp the welding torch. The welding torch clamping mechanism 12 includes an automatic torch swing 121 and a fastening device 122. The gun base of the welding torch is detachably installed on the fastening device 122, and the welding torch head is arranged on The torch swinger realizes vertical swing to the welding seam direction;
[0051] The structure of the welding gun swinger includes a guide rail. A sliding sleeve is installed on the guide rail. The sliding sleeve and the guide rail are slidably matched, so that the sliding sleeve can move linearly relative to the guide rail, that is, along the X axis; the sliding sleeve is provided with a connecting piece, and one end of the connecting piece is equipped with a motor , The eccentric block is installed on the output shaft of the motor, and the axis of the eccentric block deviates from the axis of the motor output shaft by a certain distance; the bottom of the guide rail is fixedly installed with the bottom plate, and one end of the bottom plate is provided with a strip groove. The strip groove is matched with the eccentric block. The long axis direction is perpendicular to the X axis direction; through the above structure, when welding a wider weld, the welding gun needs to be reciprocated to meet the welding requirements;
[0052] The upper part of the control box 131 is also provided with a swinger button assembly 7. The swinger button assembly 7 includes a time display nixie tube 71, an adjustment potentiometer 72, a swing speed button 73, a center adjustment potentiometer 74 and a swing angle button 75;
[0053] The time display nixie tube 71 refers to the welding process time display nixie tube 71, the working principle is that the display format is XY.Y, where X is the display mark, and the rotary shaft of the time adjustment potentiometer 72 can be cyclically switched between LRDs; where L Represents the dwell time of the left limit position of the oscillator; R represents the dwell time of the right limit position of the oscillator; D represents the delay time from starting the trolley to the start of the welding power source 132;
[0054] The adjustment potentiometer 72 refers to the welding process time adjustment potentiometer 72. The working principle is that the potentiometer shaft has a press function, which is used to switch the display parameter mark; rotate the potentiometer shaft to adjust the time parameter corresponding to the displayed parameter mark , The clockwise parameter increases, and the counterclockwise parameter decreases;
[0055] The working principle of the swing speed button 73 is to rotate the potentiometer shaft to adjust the swing speed, the clockwise value increases, and the counterclockwise value decreases;
[0056] The working principle of the swing angle button 75 is to rotate the potentiometer shaft to adjust the swing angle, which increases clockwise and decreases counterclockwise; the middle potentiometer 74 is used to adjust the swing center position of the swinger, clockwise to the right, counterclockwise to the left Partial
[0057] The control mechanism 13 includes a control box 131, a power supply 132 and a first switch 133. The upper part of the control box 131 is provided with a first switch 133. The control box 131, the power supply 132 and the first switch 133 are connected in series to form a loop;
[0058] The moving mechanism 14 includes an electric wheel 141, a motor 142, and a fixing frame 143. The fixing frame 143 is installed at the lower part of the welding frame 11, the side of the fixing frame 143 is provided with a motor 142, and the lower part of the fixing frame 143 is provided with an electric wheel 141;
[0059] The power supply 132 is a component of the lithium battery pack. A power socket 1321 is provided on the side of the power supply 132, and a welding control button 8 and an undervoltage indicator 9 are also provided on the upper part of the control box 131;
[0060] Welding control button 8 is used to control the welding state, turn the switch to "welding", the welding will be synchronized with the trolley, and the welding power will be synchronized when the trolley is started (the arc start delay time is still valid, and the trolley welding gun port and the power wire feeder are required. Correctly connected);
[0061] The power supply 132 provides power for the car, and the lithium battery pack reduces its dependence on the external power supply 132; the undervoltage indicator 9 is used to indicate the battery power, and the undervoltage indicator 9 is bright to indicate that the battery is insufficient and needs to be charged.
[0062] In this embodiment, the lower part of the welding gun clamping mechanism 12 is provided with a cross adjustment frame 2; the cross adjustment frame 2 adjusts the up and down, front and rear positions of the welding gun within a certain range; the cross adjustment frame 2 adjusts the up and down, front and rear positions of the welding gun within a certain range; The adjustment frame 2 is a prior art, and will not be described in detail in this embodiment;
[0063] The lower part of the fixing frame 143 is provided with a magnetic fixing base 3 and a second switch 31, and the magnetic fixing base 3 and the second switch 31 are connected;
[0064] A handle 4 is provided on the side of the fixing frame 143, and the handle 4 includes a handle frame 41 and a glove 42. One end of the handle frame 41 is connected to the fixing frame 143, and the other end of the handle frame 41 is connected to the glove 42;
[0065] When working with the handle 4, the trolley is carried to facilitate the transport of the trolley. At the same time, through the function of the second switch 31, when the trolley is lifted, the magnetic force of the trolley is turned off under the action of the trolley's own weight to facilitate the lifting of the trolley;
[0066] The electric wheel 141 is made of a rubber wheel, and a protective cover 1411 is provided on the outside of the electric wheel 141; the protective cover 1411 prevents the rubber wheel from being directly damaged by arc radiation and floating welding slag during the welding process.
[0067] In this embodiment, the side of the fixed frame 143 is provided with a guide wheel assembly 5, the guide wheel assembly 5 is provided with two sets, and the two sets of guide wheel assemblies 5 are both set on the side facing the workpiece to be welded;
[0068] The guide wheel assembly 5 includes a guide wheel 51 and a guide wheel frame 52. One end of the guide wheel frame 52 is connected to a fixing frame 143, and the other end of the guide wheel frame 52 is rotatably installed with a guide wheel 51; the front and rear guide wheels 51 are attached to the welding vertical plate obliquely Above, the four-wheel operation mode of the trolley can ensure the linear movement of the trolley, with simple structure and convenient operation.
[0069] In this embodiment, the upper part of the control box 131 is provided with a travel button assembly 6, which includes a travel direction button 61 and a travel speed button 62; when the travel speed button 62 is operated, the potentiometer shaft is rotated to adjust the travel speed Value size, clockwise rotation value increases, counterclockwise rotation speed value decreases.
