KELITE WELD TECH (CHINA) LIMITED

LJ-HJ12 (List of goods )

1. Overview

CO2/MAG/MIG weldingautomatic trolleys are widely used in ships, bridges, locomotives, steelstructures, petrochemical industries and other industries. They are suitablefor welding a variety of welded structures, such as: welding of stiffenerplates, ribs, cross parts, box beams Welding, etc. Its main advantages are:

1.1 Reduce laborintensity and improve the working environment;

1.2 Improve workefficiency, which is 1.5 times that of manual welding;

1.3 Avoid poor weldquality caused by human factors. Generally, the defect rate of manual operationis about 20%, and the use of automatic welding trolleys does not result in theresulting welding defect rate, so its overall benefit is nearly 200% higher thanmanual welding;

1.4 High degree ofautomation to ensure the stability of welding quality;

1.5 Does not requirevery skilled technical workers;

The welding trolleyis a welding equipment that uses a rack and pinion to drive on the track. It iswidely used in horizontal butt welding and vertical butt welding, especiallysuitable for welding of medium and thick plates. By adjusting the position andangle of the welding gun, fillet welding, horizontal welding and overheadwelding can also be performed. The trolley body, swing device, and controlpanel are integrated, and can be welded while walking on the track. The trackis attracted to the workpiece with a strong magnet, which is easy to installand disassemble.

2. Features

1) It can realizewelding in various positions such as vertical welding, horizontal welding andhorizontal welding.

2) With linear swingfunction. Various swing parameters such as swing mode, swing amplitude, swingspeed, swing center position and left and right stay time can be adjusted.

3) The running speedof the trolley is displayed digitally.

4) In order toprevent undercut and insufficient welding during weaving welding, the left andright weaving stop time adjustment function is set up.

5) When weldingstops, the welding gun will automatically return to the center of the weldbead.

6) With automatic arcclosing function.

7) With fast returnfunction.

8) Standardconfiguration provides 1.5m long track. The track is miniaturized andlight-weight, convenient to move, and can be docked for extended use.

3.Applicableenvironment

Generally used for regular vertical butt welding andhorizontal butt welding. Fillet welding and horizontal welding can also beperformed by adjusting the position and angle of the welding gun.

4. Outline drawing anddescription of main components

4.1 DC motor: thepower device for the trolley to travel. Use AC220V power supply.

4.2 Rail: Aluminumrigid rail, the standard configuration is 1.5m, which can be docked forextended use.

4.3 Mounting magnetof the rail: the fixing device of the rail. It can produce 60Kg of suction,which can be firmly adsorbed on the workpiece. With a detachable handle, it isconvenient to disassemble and move the track.

4.4 Control panel:The control center of the car, all actions are controlled from it.

4.5 Install thehandle: the clutch device of the trolley track wheel. When installing, turnthis handle to drive the track wheel to open. After the track wheel is stuck onthe track, loosen this handle and the track wheel is automatically locked. Whenthe handle is in the semi-clutch state, it can realize the quick returnfunction.

4.6 X-Y slidingblock: the adjustment mechanism of the welding gun position. The adjustmentrange in the X direction is ±20mm, and the adjustment range in the Y directionis ±20mm.

4.7 Swing motor: thedrive device of the swinger. Using high-precision DC motor, its power is 6W.

4.8 Welding gunclamp: the clamping device of the welding gun. The angle of the welding gun canbe adjusted, and the adjustment range is ±90°.

5. Control paneldescription

(1) "WELDING ON /WELDING OFF" switch: when the"WELDING ON" position is selected, it will enter the weldingpreparation state, and press the "start" switch to weld; when the"WELDING OFF" position is selected, press the "start"switch, the cart will only move but No welding is performed.

(2) "START" switch: Turn on the switch and thetrolley starts to walk, if the "WELDING ON /WELDING OFF" selectorswitch is set to the "WELDING ON" position, then welding will start;if the "WELDING ON /WELDING OFF" selector switch is set at this timeIn the "WELDING OFF" position, only the trolley is running butwelding is not performed.

(3) "STOP" switch: If you press the stop switchwhile the car is moving, the car will stop all actions.

(4) Walking direction selection switch: You can choose L-Moveor R-Move to walk.

(5) Speed: The speed value is digitally displayed, themaximum walking speed is 1040mm/min, and the digital display value is 999.

(6) Swing speed adjustment knob: rotate clockwise to increasethe swing speed, the maximum value is 1520mm/min. It is expressed in scale, andthe maximum scale is 10.

(7) Swing frequency adjustment knob: Turn clockwise toincrease the swing frequency, and the maximum value is 20mm. It is expressed inscale, and the maximum scale is 10.

(8) Stop time adjustment knob: the adjustment range is 0~2S,increasing clockwise.

(9) Right stop time adjustment knob: the range is 0~2S,increasing clockwise.

(10) Center movement adjustment knob: when rotatingclockwise, the center will move to the right, when rotating counterclockwise,the center will move to the left, and the maximum range of movement is ±5mm.Expressed by scale value, the maximum scale value is 5.

(11) Swing mode selection knob: Use this knob to select theswing mode. There are five swing modes for the trolley. Except for the firstone which is non-swing mode, the rest are as follows:

6. The main technical parameters

7. Installation method

(1) Installationconditions

a. The necessarytools for welding are welding power source and wire feeder device;

b. Welding powersupply for walking and control (AC 220V);

c. CO2 gas tank forwelding;

d. Straight weldinggun for CO2 automatic welding;

e. Basic tools forother necessary operations;

(2) Systemconnection method

a. Install thetrack. The installation of the track must ensure that the welding direction ofthe trolley is parallel to the welding seam;

b. Install thetrolley, and use the installation handle to clamp the track wheel of thetrolley on the track;

c. Install thewelding wire on the wire feeder and pull it to the end of the welding gun;

d. The welding gunport is connected to the wire feeder;

e. Connect one sideof the trolley's power cable to the 3P socket of the trolley, and connect theother side to the AC 220 power supply.

8. Mode of operation

--Select the wirediameter switch in the welding power source.

--Select the type ofwelding wire in the welding power source, solid-cored or flux-cored.

--Turn on the powerswitchboard switch----ON.

--Turn on thewelding power switch----ON (the self-protection circuit switch of the weldingmachine is closed----OFF).

--Open the valve ofthe CO2 gas cylinder and check whether the pressure is above 1kg/cm2. If thegas pressure is below 1kg/cm2, the gas cylinder should be replaced; if the gaspressure is above 1kg/cm2, set the gas switch of the welding power source tothe “check” position to adjust the gas flow. After adjusting the flow rate, the"Gas Check" switch of the welding power source is set to"OFF".

--Use manual wirefeed to feed the welding wire to the front end of the welding gun, and installa contact tip corresponding to the diameter of the welding wire.

--Confirm theextension length of the welding wire

--Clamp thewelding torch on the welding torch clamp, and use a special wrench to adjustthe operating angle and travel angle of the welding torch --Adjust the X-Yslider, move the coarse adjustment knob of the welding gun position, and adjustthe position of the welding gun --Adjust the distance between the nozzle andthe workpiece.

--Preliminaryadjustment of process parameters (current, voltage, etc.);

--Confirm the CO2 gasflow rate and the protection effect of the molten pool;

--Preliminarily adjustthe required swing mode, swing amplitude, left and right stay time, centerposition and swing speed;

--Start welding,observe the arc, accurately adjust the welding speed, swing speed and otherparameters

(Turn the weldingselection switch on the operation panel to the ON position and press the startswitch to weld);

--Press the stop switchafter the welding of the workpiece is finished;

9.Inspection and maintenance

In order to ensure thelong-term and safe use of the welding trolley, the trolley should be inspectedand repaired regularly.

1) Is there dust?

-The control box andthe switch of the welding gun adjustment part should be kept clean and wipedfrequently without dust.

2) Is the stolenproperty piled up?

-The deposits on thetip, torch head, guide wheel and sliding block should be removed because itwill affect the safe operation of the trolley.

3) Are the screws ofthe welding gun holder and the guide rail loose?

-Loose screws will leadto poor trolley walking and uneven welding bead. Always check the tighteningstate of the screw.

4) Confirm that theconnectors, connecting wires, hoses, and welding guns are disconnected ordamaged?

-Check for slack injoints or connecting wires, hoses, and welding guns for disconnection anddamage.

5) Is there anyabnormal sound or abnormal heat?

-Regularly checkwhether there are any abnormalities in the motor, welding torch, etc.

6) Is there any wear onthe rack and pinion track?

-The wear of the rackwill become the cause of poor walking, so it should be replaced regularly.

7) Is the fuse blown?

-If the power lightdoes not light up after wiring during welding, please check the fuse first.

8) Check whether theoscillator is working properly?

-Check the motor and variousadjustment knobs of the swinger.