CN211331903U

CN211331903U - Automatic welding device for longitudinal seam of aluminum alloy cylinder

Info

Publication number: CN211331903U
Application number: CN201922344385.4U
Authority: CN
Inventors: 李秀坤; 叶晔; 战丽丽; 刘璐; 刘阵; 全列宁
Original assignee: Jiangsu Jinxin Electric Appliance Co ltd
Current assignee: Jiangsu Jinxin Electric Appliance Co ltd
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-08-25
Anticipated expiration: 2029-12-23

Abstract

An automatic welding device for longitudinal seams of aluminum alloy cylinders. Relates to the technical field of longitudinal seam welding devices for aluminum alloy pipes, in particular to an improvement on an automatic longitudinal seam welding device for the aluminum alloy pipes. The welding device with the hollow mandrel is provided, heat sink is reduced, heat loss is further minimized, and welding seam quality and welding efficiency are improved. The key pressing finger assembly comprises a rack, a mandrel and two rows of key pressing finger assemblies, wherein the mandrel is arranged on the rack, the two rows of key pressing finger assemblies are arranged on a main beam of the rack, the mandrel is arranged below a longitudinal seam of a workpiece, the axial direction of the mandrel is consistent with the length direction of the longitudinal seam of the workpiece, each row of key pressing finger assemblies respectively comprise a plurality of pressing fingers, heat insulation plates are connected below the pressing fingers, the heat insulation plates are arranged on the outer surface of the workpiece, the mandrel is a hollow shaft, and a heating assembly is arranged in an inner cavity of the mandrel. The utility model discloses reduce heat sink, further avoided thermal loss to obtain high-quality welding seam and improve welding efficiency.

Description

Automatic welding device for longitudinal seam of aluminum alloy cylinder

Technical Field

The utility model belongs to the technical field of aluminum alloy tube longitudinal joint welding set technique and specifically relates to the improvement to aluminum alloy tube's longitudinal joint automatic welder.

Background

The thermal conductivity and specific heat capacity of aluminum and aluminum alloys are more than twice as high as that of carbon steel and low alloy steel. The thermal conductivity of aluminum is tens of times that of austenitic stainless steel. During welding, a large amount of heat can be rapidly transmitted to the inside of base metal, so that when welding aluminum and aluminum alloy, energy is consumed in molten metal bath, and more heat is consumed in other parts of metal unnecessarily, the consumption of useless energy is more remarkable than that of steel welding, and in order to obtain a high-quality welding joint, the heat loss needs to be prevented during welding.

The national intellectual property office 2017, 6 month and 13 days discloses a Chinese utility model patent, the patent name: the utility model provides an aluminum alloy longitudinal joint automatic welder, publication no: CN206241495U, it is the solid dabber 2 surface sets up arc heating pipe 5, sets up electric heating pipe 6 and the mode of key below the key-press finger subassembly 2 connection heat insulating board 3 in the arc heating pipe, as shown in figure 1, makes the heat that loses because of heat conduction minimize in the welding process, concentrates the heat and uses in making the aluminum product fully melt, prolongs the cooling solidification of welding molten bath, makes oxide and the gaseous abundant overflow in the molten bath, thereby obtains high-quality welding seam and improves welding efficiency. However, the mandrel in the technical scheme is a solid high-strength steel bar, a large amount of heat is conducted by the mandrel in the welding process and is dissipated into the air through the mandrel, and therefore certain heat loss still exists.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the drawback that original technique exists, provide a dabber and be hollow welding set, reduce heat sink, further make thermal loss minimizing, improve welding seam quality and welding efficiency.

The technical scheme of the utility model is that:

the utility model provides an aluminum alloy barrel longitudinal joint automatic welder, includes the frame, the dress is in dabber in the frame, two rows of key pressure on the installation frame girder indicate the subassembly, the dabber sets up the below at the work piece longitudinal joint, the axial of dabber with the length direction of work piece longitudinal joint is unanimous, two rows the key pressure indicates the subassembly to set up the top both sides of work piece longitudinal joint, every row the key pressure indicates the subassembly all includes that a plurality of presses indicate, the below of finger pressure all connects the heat insulating board, the heat insulating board sets up the surface at the work piece, the dabber is the hollow shaft, set up heating element in the inner chamber of dabber.

And the upper surface of the mandrel, which is close to the longitudinal seam of the workpiece, is provided with a welding seam forming groove along the length direction, and the welding seam forming groove and the longitudinal seam of the workpiece are correspondingly arranged.

The heating assembly comprises a plurality of electric heating pipes or electromagnetic heating pipes, and the electric heating pipes or the electromagnetic heating pipes are uniformly distributed along the circumferential direction of the inner cavity of the mandrel.

The welding gun is used for welding the longitudinal seam of the workpiece and is arranged above the main beam.

The utility model discloses improved the electrothermal tube heating technical measure among the former welding set, replaced former solid dabber into hollow dabber to with heating pipe or electromagnetic heating pipe setting in the inner chamber of hollow dabber, reduced heat sink, further avoided thermal loss, reduce calorific loss to the minimizing, thereby obtain high-quality welding seam and improve welding efficiency.

Drawings

FIG. 1 is a schematic diagram of the background art;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2;

in the figure: 1-a workpiece; 2-key press finger assembly; 3, insulating boards; 4-solid mandrel; 5-arc steel pipe; 6-electric heating tube; 7-a welding gun; 8-mandrel; 9-a heating assembly; 10-forming a groove by welding seams.

Detailed Description

The present invention will be described in detail with reference to fig. 1 to 3, and the following examples are provided to illustrate the present invention but not to limit the scope of the present invention.

Referring to fig. 2, the utility model provides a preferred embodiment aluminum alloy barrel longitudinal joint automatic welder, including the frame, the dress is in dabber 8 in the frame, two rows of keys on the installation frame girder press and indicate subassembly 2, dabber 8 sets up the below at 1 longitudinal joint of work piece, the axial of dabber 8 with the length direction of 1 longitudinal joint of work piece is unanimous, two rows the key is pressed and is indicated subassembly 2 and set up the top both sides of 1 longitudinal joint of work piece, every row the key is pressed and is indicated subassembly 2 all includes that a plurality of presses and indicate, the heat insulating board 3 is all connected to the below of pressing, heat insulating board 3 sets up the surface at work piece 1, dabber 8 is the hollow shaft, set up heating element 9 in the inner chamber of dabber 8.

Two rows of key pressing finger assemblies 2 are arranged on a main beam of the rack, each row of key pressing finger assemblies 2 comprises a plurality of pressing fingers, a heat insulation plate 3 is connected below each pressing finger, and the heat insulation plate 3 is arranged on the outer surface of the workpiece 1 to insulate heat, so that the heat loss is reduced. Reference is made to the patent name: the utility model provides an aluminum alloy longitudinal joint automatic welder, publication no: the key pressing finger assembly and the heat insulation board described in CN206241495U, but the solid spindle 4 is adopted, and the solid spindle 4 dissipates heat more.

The utility model discloses in improve solid dabber 4 for hollow dabber 8, set up heating element 9 in hollow dabber 8's the inner chamber, guaranteed 1 longitudinal joint department of work piece all the time, the even heating, hollow dabber 8 has reduced heat sink simultaneously, further with the heat loss minimizing.

Referring to fig. 3, a weld forming groove 10 is formed in the upper surface of the mandrel 8 close to the longitudinal seam of the workpiece 1 along the length direction, and the weld forming groove 10 is arranged corresponding to the longitudinal seam of the workpiece 1.

The heating unit 9 includes a plurality of electric heating pipes or electromagnetic heating pipes, and the electric heating pipes or electromagnetic heating pipes are uniformly distributed along the circumferential direction of the inner cavity of the mandrel 8.

The device also comprises a welding gun 7 for welding the longitudinal seam of the workpiece, wherein the welding gun 7 is arranged above the main beam (not shown in the figure).

The welding gun 7 is aligned to the longitudinal seam of the workpiece 1 for welding, heat is concentrated to be used for fully melting aluminum materials through the matching of the hollow core shaft 8 and the partition plate heat 3, cooling and solidification of a welding pool are prolonged, oxides and gas in the welding pool are fully overflowed, heat loss is further minimized, high-quality welding seams are further obtained, welding efficiency is improved, and energy conservation and emission reduction are achieved.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an aluminum alloy barrel longitudinal joint automatic welder, includes the frame, the dress is in dabber in the frame, two rows of key pressure on the installation frame girder indicate the subassembly, the dabber sets up in the below of work piece longitudinal joint, the axial of dabber with the length direction of work piece longitudinal joint is unanimous, two rows the key pressure indicates the subassembly to set up the top both sides of work piece longitudinal joint, every row the key pressure indicates the subassembly all includes a plurality of pressure and indicates, the below of pressing indicates all connects the heat insulating board, the heat insulating board sets up the surface at the work piece, its characterized in that, the dabber is the hollow shaft, set up heating element in the inner chamber of dabber.

2. The automatic welding device for the longitudinal seam of the aluminum alloy cylinder body as claimed in claim 1, wherein a welding seam forming groove is formed in the upper surface of the mandrel close to the longitudinal seam of the workpiece along the length direction, and the welding seam forming groove is arranged corresponding to the longitudinal seam of the workpiece.

3. The automatic welding device for the longitudinal seam of the aluminum alloy cylinder body according to claim 1, wherein the heating component comprises a plurality of electric heating pipes or electromagnetic heating pipes which are uniformly distributed along the circumferential direction of the inner cavity of the mandrel.

4. The automatic welding device for the longitudinal seam of the aluminum alloy cylinder body as recited in claim 1, further comprising a welding gun for welding the longitudinal seam of the workpiece, wherein the welding gun is arranged above the main beam.