CN201140316Y - Apparatus for symmetrical fillet welding - Google Patents

Abstract

The utility model provides a device for symmetrical fillet welding, which includes 2 welding machines, and is characterized in that there is a welding trolley between the 2 welding machines, and a lifting system and a telescopic system are respectively installed on both sides of the trolley. The lifting system is installed perpendicular to the ground. The telescopic system is installed on the side wall of the lifting system sleeve at an angle of 30-60° to the ground. A fulcrum guide wheel is installed at the end and the lower side of the telescopic column of the telescopic system. The telescopic system The lower side of the telescopic column is connected with the welding torch through the adjusting device. The utility model has the advantages of simple structure, reasonable design and flexible operation; the arc penetrating power of the _CO2 gas-shielded welding is strong, the melting rate of the welding wire is high, the deposition speed is fast, and the production efficiency is high; Seam quality is high.

Description

Apparatus for symmetrical fillet welding

technical field

The utility model belongs to the technical field of welding, in particular to a device for symmetrical fillet welding.

Background technique

At present, the symmetrical fillet welding generally adopts submerged arc welding automatic trolley for single-sided welding, and the production efficiency is low. Because the fillet welding on one side is used to weld the fillet welding on the other side, the deformation of the workpiece is large due to uneven heating on both sides, so the welding quality is often Not ideal either.

Contents of the invention

The utility model provides a device which is not only suitable for fillet welding but also capable of simultaneous welding on both sides in order to overcome the shortcomings of the above-mentioned prior art.

The device for symmetrical fillet welding of the utility model is realized in the following way: the device includes 2 welding machines, which is characterized in that there is a welding trolley between the 2 welding machines, and a set of lifting system and a lifting system are respectively arranged on both sides of the welding trolley. The telescopic system, the lifting system is installed perpendicular to the ground, the telescopic system is installed on the side wall of the lifting system sleeve at an angle of 30-60° to the ground, and a fulcrum guide wheel is installed at the end and the lower side of the telescopic column of the telescopic system. The lower side of the telescopic column of the telescopic system is connected with the welding torch through the adjustment device.

The lifting system described in the utility model is composed of a lifting sleeve and a lifting column. The inner walls of the four sides of the lifting sleeve are respectively equipped with 4 rolling bearings, and are set on the outside of the lifting column. The lifting column is installed perpendicular to the ground; the telescopic system consists of The telescopic sleeve and the telescopic column are composed of four rolling bearings on the four inner walls of the telescopic sleeve, and are set on the outside of the telescopic column; the adjustment device is composed of 2 racks and 2 gears, the gears rotate, and the gears The bar does displacement movement, the gear and the adjustment handwheel are installed on the same axis, and the rotation of the adjustment handwheel can make the welding torch move up and down and forward and backward; the welding machine adopts an inverter gas shielded CO2/MAG welding machine.

The device for symmetrical fillet welding of the utility model is simple in structure, reasonable in design and flexible in operation; the arc penetrating power of CO2 gas shielded welding is strong, the melting rate of welding wire is high, the deposition speed is fast, and the production efficiency is high; the simultaneous welding of both sides is adopted, The welding deformation is small and the weld quality is high.

Description of drawings

Accompanying drawing 1 is the structural representation of the device for symmetrical fillet welding of the present invention.

Accompanying drawing 2 is A-A sectional view of accompanying drawing 1.

Below with reference to accompanying drawing, the utility model is further described.

Detailed ways

As can be seen from the accompanying drawings, the device for symmetrical fillet welding of the utility model mainly includes 2 welding machines 13, and the utility model adopts an inverter gas shielded CO2/MAG welding machine. A welding trolley 5 is arranged between the two welding machines. Both sides of the welding trolley 5 are respectively provided with a set of lifting system and telescopic system. The lifting system is composed of a lifting sleeve 2 and a lifting column 1, and four rolling bearings are respectively installed on the inner walls of the four sides of the lifting sleeve. The lifting sleeve 2 is set on the outside of the lifting column 1. Through the cooperation of rolling bearings, the lifting column 1 is installed perpendicular to the ground. Under the action of external force, the lifting sleeve 2 can reciprocate up and down relative to the lifting column 1. The telescopic system is composed of a telescopic sleeve 3 and a telescopic column 4 . The four inner walls of the telescopic sleeve are respectively equipped with 4 rolling bearings, and the telescopic sleeve 3 is set on the outside of the telescopic column 4. Through the cooperation of the rolling bearings, the telescopic column 4 can do forward and backward telescopic movement relative to the telescopic sleeve 3 under the action of external force. The telescopic system is installed on the side wall of the lifting system sleeve 2 at an angle of 30～60° with the ground, preferably at an angle of 45°. A fulcrum guide wheel 9 and a fulcrum guide wheel 10 are respectively housed at the front end and the end lower side of the telescopic system telescopic column 4 . The welding torch 12 is connected below the telescopic column 4 through an adjusting device, which can be moved back and forth and up and down by adjusting the handwheels 7 and 8 on the adjusting device. The utility model is also equipped with a fastening handwheel 6 on the telescopic sleeve 3, and the fastening handwheel 6 can be tightened at the end of welding to make it tighten the telescopic column 4, so as to prevent the fulcrum guide wheel 9 and the fulcrum guide wheel 10 Under the condition that there is no welding part to push against, the telescopic column 4 slides out from the telescopic sleeve 3 under the action of its own gravity.

The utility model takes welding H-shaped steel as an example, as shown in accompanying drawing 1. Place the welded part H-beam 11 that has been spot-welded butt-jointed on the welding trolley 5, and place the two fulcrum guide wheels 9 and 10 at the front of the telescopic column 4 against the web and lower flange of the H-beam 11 respectively. Then adjust the welding torch head to the best position for welding by adjusting the handwheels 7 and 8, start the welding trolley 5 while starting the welding machine, and the electromagnetic speed regulating motor can make the welding trolley 5 move forward at the optimal speed . During the welding process, the fulcrum guide wheel 10 is supported on the flange plate of the H-shaped steel 11. While supporting the telescopic column 4, it also supports the telescopic sleeve 3 and the lifting sleeve 2. The lifting sleeve 2 and the telescopic system The fulcrum guide wheel 10 is abutted against the flange plate under the gravity; the fulcrum guide wheel 9 is supported on the web of the H-shaped steel 11, and the guide wheel 9 can be abutted against the web under the gravity of the telescopic column 4, Even if the surface of the web and flange of the H-shaped steel 11 is uneven, the lifting sleeve 2 can be automatically adjusted up and down through the support of the two fulcrum guide wheels 9 and 10 and the gravitational action of the telescopic column 4 and the lifting sleeve 2 , the telescopic column 4 does the action of extending or retracting, so that the welding torch and the welding seam always maintain the best welding position. Adopting the device of the utility model only needs to adjust the welding torch once before each welding, avoiding the secondary adjustment in the welding process. The utility model is particularly suitable for welding H-shaped steel and T-shaped steel.

Claims (5)

1. A device for symmetrical fillet welding, including 2 welding machines, characterized in that there is a welding trolley between the 2 welding machines, and a set of lifting system and telescopic system are respectively arranged on both sides of the welding trolley, and the lifting system is vertical Installed on the ground, the telescopic system is installed on the side wall of the lifting system sleeve at an angle of 30-60° to the ground, and a fulcrum guide wheel is installed on the end and the lower side of the telescopic column of the telescopic system. The underside is connected to the welding torch via an adjustment device. 2. The device for symmetrical fillet welding according to claim 1, characterized in that the lifting system is composed of a lifting sleeve and a lifting column, and the inner walls of the four sides of the lifting sleeve are respectively equipped with 4 rolling bearings, and are set on the lifting column. Outside, the lifting column is installed perpendicular to the ground. 3. The device for symmetrical fillet welding according to claim 1, characterized in that the telescopic system is composed of a telescopic sleeve and a telescopic column, and the four inner walls of the telescopic sleeve are respectively equipped with 4 rolling bearings, and are set on the telescopic column. Outside. 4. The device for symmetrical fillet welding according to claim 1, 2 or 3, characterized in that the adjustment device is composed of 2 racks and 2 gears, the gears perform rotational motion, the racks perform displacement motion, and the gears There is an adjustment handwheel at the end. 5. The device for symmetrical fillet welding according to claim 1, 2 or 3, characterized in that said welding machine is an inverter CO2/MAG welding machine.