Electrode device for welding galvanized bottom plate and steel bar truss

Abstract

The utility model discloses an electrode device for welding a galvanized bottom plate and a steel bar truss and relates to the technical field of equipment welding. The copper pipe is connected with the cooling pipe and located above the electrode base, an upper electrode is arranged at the bottom of the copper pipe, a lower electrode is arranged on the electrode base, the upper electrode corresponds to the lower electrode, the cooling pipe is externally connected to promote rapid circulation of a cooling system, welding quality is guaranteed, the copper pipe is externally connected with the cooling pipe, and it is guaranteed that heat of the electrodes can flow away in time; the nuggets can be rapidly cooled and solidified to form welding spots, meanwhile, the contact area between the electrode and the steel bar truss and the galvanized bottom plate is increased, the welding quality is improved, the desoldering number of the welding spots is reduced, and the overall firmness of the steel bar truss floor support plate is greatly improved.

Description

Technical Field

[0001] The utility model relates to an electrode device for welding a galvanized bottom plate and a steel bar truss, and relates to the technical field of equipment welding. Background Art

[0002] The truss made of steel bars as the upper chord, lower chord and web members connected by resistance spot welding is called a steel truss. The steel truss and the galvanized bottom plate are welded together by high-frequency resistance spot welding, which is called a steel truss floor deck. The steel truss floor deck can reduce the formwork erection and disassembly process, reduce the amount of steel bar binding on site, save manpower, machinery and material losses, improve work efficiency, shorten the construction period, and meet the national requirements for energy conservation and emission reduction.

[0003] In the prior art, when welding the steel truss and the base plate, they are mostly connected into a whole directly through resistance spot welding. However, due to the narrow welding surface at the bottom of the electrode of the original equipment, the steel truss and the galvanized base plate cannot be accurately welded in place, the electrode is not cooled in time, and the heat cannot be taken away in time, which is prone to desoldering and welding leakage. After the occurrence of cold welding, the steel truss is easy to loosen when impacted, affecting the overall stability of the building. Utility Model Content

[0004] The purpose of the utility model is to provide an electrode device for welding a steel truss and a galvanized bottom plate in view of the defects or shortcomings in the prior art. By modifying the electrode, the contact area between the electrode and the steel truss and the galvanized steel plate is increased, thereby ensuring the welding quality. The copper tube is externally connected to a cooling pipe to ensure that the heat of the electrode can flow away in time, and the molten core can quickly cool and solidify to form a weld point, thereby improving the welding quality, reducing the number of weld debonding, and greatly improving the overall firmness of the steel truss floor deck.

[0005] To achieve the above purpose, the utility model adopts the following technical solution: it includes a copper tube 1, a cooling tube 2, and an electrode base 5. The copper tube 1 is connected to the cooling tube 2 and is located above the electrode base 5. An upper electrode 3 is arranged at the bottom of the copper tube 1, and a lower electrode 4 is arranged on the electrode base 5. The upper electrode 3 corresponds to the lower electrode 4.

[0006] Furthermore, the cooling tube 2 is externally connected to the copper tube 1 and is connected to the copper tube through a stainless steel clamp tube 6 .

[0007] Furthermore, the upper electrode 3 is in a trapezoidal shape that is smaller at the top and larger at the bottom, and the bottom is a plane.

[0008] Furthermore, the lower electrode 4 is in a square shape and has a flat surface.

[0009] Furthermore, the copper tube 1 is a hollow structure.

[0010] Furthermore, the cooling pipe 2 is a hollow structure and is filled with cooling liquid.

[0011] It includes a copper tube 1, the middle part of which is a hollow structure. The bottom of the copper tube 1 is connected to a cooling tube 2 through a stainless steel tube clamp 6. The cooling tube 2 is a hollow structure with coolant inside. The bottom of the copper tube 1 is connected to an upper electrode 3. A lower electrode 4 is arranged on an electrode base 5. During processing, a steel truss 8 and a galvanized bottom plate 7 are placed on the lower electrode 4 at the same time.

[0012] The lower part of the copper tube 1 is externally connected to the cooling tube 2 through a stainless steel tube clamp 6, and the bottom is connected to the upper electrode.

[0013] The cooling pipe 2 is a hollow structure with a coolant inside, and the coolant circulates.

[0014] The upper electrode 3 is a trapezoidal structure, which is larger at the top and smaller at the bottom and has a flat bottom, and the lower part can be completely placed on the lower electrode.

[0015] The lower electrode 4 is placed on the electrode base, has a square structure, and has a flat upper portion, and is used in conjunction with the upper electrode.

[0016] After adopting the above technical scheme, the beneficial effects of the utility model are as follows: the rapid circulation of the cooling system is promoted by externally connecting the cooling pipe to ensure the welding quality, the copper tube externally connected to the cooling pipe ensures that the heat of the electrode can flow away in time, and the molten core can quickly cool and solidify to form a weld point, while increasing the contact area between the electrode and the steel truss and the galvanized bottom plate, thereby improving the welding quality, reducing the number of weld desoldering, and greatly improving the overall firmness of the steel truss floor deck. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the welding state of the utility model.

[0020] Description of reference numerals: copper tube 1, cooling tube 2, upper electrode 3, lower electrode 4, electrode base

[0021] 5. Stainless steel pipe clamp 6. Galvanized base plate 7. Steel bar truss 8. Implementation

[0022] See also Figure 1-2As shown, the technical solution adopted in this specific embodiment is: it comprises a copper tube 1, a cooling tube 2, and an electrode base 5. The copper tube 1 is connected to the cooling tube 2 and is located above the electrode base 5. An upper electrode 3 is arranged at the bottom of the copper tube 1, and a lower electrode 4 is arranged on the electrode base 5. The upper electrode 3 corresponds to the lower electrode 4. During operation, a galvanized bottom plate 7 and a steel truss 8 are placed on the lower electrode 4. The equipment applies pressure through the copper tube 1 to make the upper electrode 3, the lower electrode 4, the galvanized bottom plate 7 and the steel truss 8 in close contact, and then the current is turned on. Under the action of resistance heat, the contact between the galvanized bottom plate 7 and the steel truss 7 melts to form a molten core. After the current is cut off, the pressure is maintained so that the molten core is cooled and solidified under pressure to form a welding point.

[0023] To be more specific, the cooling tube 2 is externally connected to the copper tube 1 and is connected to the copper tube through a stainless steel clamp tube 6. The copper tube 1 is a hollow structure, and the cooling tube 2 is a hollow structure and is filled with coolant. In this embodiment, by externally connecting the cooling tube 2 to the copper tube 1, it is ensured that the heat of the electrode can be dissipated in time, and the molten core can be quickly cooled and solidified to form a welding point.

[0024] To be more specific, the upper electrode 3 is a trapezoidal shape that is small at the top and large at the bottom, and the bottom is flat, and the lower electrode 4 is a square shape with a flat surface. Traditional electrode points are spot welding, and the contact area is small. Therefore, in this embodiment, a trapezoidal upper electrode 3 and a square lower electrode 4 are used, which greatly increases the contact area, ensures the welding quality, improves the welding quality, reduces the number of desoldering welds, and greatly improves the overall firmness of the steel truss floor deck.

[0025] The working principle of the utility model is as follows: by changing the position of the cooling pipe 2, the copper tube 1 is externally connected to the cooling pipe 2 to ensure that the heat of the electrode can flow away in time, the molten core can quickly cool and solidify to form a welding point, and the cross-section of the electrode 1 is modified. The contact area between the electrode 1 and the steel truss 8 and the galvanized steel plate 1 is increased, thereby ensuring the welding quality, improving the welding quality, reducing the number of desoldering of the welding point, and greatly improving the overall firmness of the steel truss floor deck.

[0026] The above description is only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. An electrode device for welding galvanized bottom plate and steel truss, Features: It comprises a copper tube (1), a cooling tube (2), and an electrode base (5); the copper tube (1) is connected to the cooling tube (2) and is located above the electrode base (5); an upper electrode (3) is arranged at the bottom of the copper tube (1); a lower electrode (4) is arranged on the electrode base (5); the upper electrode (3) corresponds to the lower electrode (4).

2. An electrode device for welding a galvanized bottom plate to a steel truss according to claim 1, Features: The upper electrode (3) is in a trapezoidal shape with a small top and a large bottom, and the bottom is a flat surface.

3. An electrode device for welding a galvanized bottom plate to a steel truss according to claim 1, Features: The lower electrode (4) is in a square shape and has a flat surface.

4. The electrode device for welding a galvanized bottom plate to a steel truss according to claim 1, Features: The cooling pipe (2) is externally connected to the copper pipe (1) and is connected to the copper pipe via a stainless steel clamp pipe (6).

5. The electrode device for welding a galvanized bottom plate to a steel truss according to claim 1, Features: The copper tube (1) is a hollow structure.

6. An electrode device for welding a galvanized bottom plate to a steel truss according to claim 1, Features: The cooling pipe (2) is a hollow structure and is filled with cooling liquid.

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