Laser welding device based on galvanized sheet

Abstract

The utility model discloses a laser welding device based on a galvanized sheet, which comprises a welding machine body, the welding machine body comprises a welding base and a welding table arranged at the top end of the welding base, and a preheating assembly for preheating the galvanized sheet during welding is arranged at the top end of the welding table. The preheating assembly comprises a preheating cavity formed in the welding table, a resistance wire grid for heating is arranged in the preheating cavity, a preheating plate is arranged over the resistance wire grid and located on the inner side of the preheating cavity, and a power interface electrically connected with the resistance wire grid is formed in one end of the welding table. A power source of the resistance wire grid is connected through the power interface, the preheating plate can be heated through the resistance wire grid, a galvanized plate is preheated, then a worker welds the galvanized plate through the welding assembly, the galvanized plate can be preheated through the preheating assembly, release of coating gas in the welding process is reduced, and the welding quality of the galvanized plate is improved. And the quality stability of a welding joint is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of laser welding equipment for galvanized plates, in particular to a laser welding device based on galvanized plates. Background Art

[0002] Galvanized sheet is a metal sheet with a zinc layer on the surface, usually used for anti-corrosion and corrosion resistance purposes. Galvanized sheet is widely used in construction, automobile manufacturing, furniture manufacturing and many other fields. Traditional arc welding has a low depth-to-width ratio, double-sided processing, and high unit output heat. Laser welding has a high depth-to-width ratio, single-sided processing, low unit output heat, and little damage to the zinc layer.

[0003] Laser welding has extremely high welding accuracy and control ability for galvanized sheets, and can achieve welding of tiny welds and complex shapes. Galvanized sheets need to be preheated when welding. Failure to preheat during welding will increase the release of gas in the coating and reduce the quality stability of the welded joint. Utility Model Content

[0004] The purpose of the utility model is to provide a laser welding device based on galvanized sheet in order to solve the problem that the existing laser welding has extremely high welding accuracy and control ability for welding galvanized sheet, and can realize welding of tiny welds and complex shapes. When welding galvanized sheet, it is necessary to preheat it. If it is not preheated, the gas release in the coating will increase during welding, and the quality stability of the welded joint will be reduced.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a laser welding device based on galvanized sheet, comprising a welding body, the welding body comprising a welding base and a welding table arranged on the top of the welding base, a preheating component for preheating the galvanized sheet welding is arranged on the top of the welding table, the preheating component comprises a preheating chamber opened inside the welding table, a resistance wire grid for heating is arranged inside the preheating chamber, a preheating plate is arranged directly above the resistance wire grid and inside the preheating chamber, a power supply interface for electrically connecting the resistance wire grid is arranged at one end of the welding table, and clamping components for clamping the galvanized sheet for welding are symmetrically arranged at both ends of the welding table.

[0006] As a further solution of the utility model: a welding assembly for welding the galvanized sheet is arranged on the top of the welding table, and heat dissipation holes for dissipating heat from the internal electrical components are symmetrically opened at both ends of the welding base.

[0007] As a further solution of the utility model: the clamping assembly includes a clamping plate 1 which is slidably connected to one end of the welding table, and the clamping plate 1 is symmetrically slidably connected to both ends of the welding table, the top end of the clamping plate 1 is rotatably connected to an adjusting screw for adjusting the clamping height, and the adjusting screw passes through the clamping plate 1 and is fixedly connected to a fixed block for clamping the galvanized sheet.

[0008] As a further solution of the utility model: the clamping assembly also includes a clamping plate 2 which is slidably connected to one end of the welding table and is arranged near one end of the welding assembly, and the clamping plate 2 is symmetrically slidably connected to both ends of the welding table, and the clamping plate 2 is also rotatably connected to an adjusting screw.

[0009] As a further solution of the utility model: an L-shaped clamping plate for clamping the galvanized sheet is fixedly installed at one end of the clamping plate, and the L-shaped clamping plate is also rotatably connected with an adjusting screw.

[0010] As a further solution of the utility model: a clamping slide rod for adjusting the clamping distance between clamping plate one and clamping plate two is fixed at one end of the welding platform, and the clamping slide rod is symmetrically fixed at both ends of the welding platform, and a clamping groove for slidingly engaging with the clamping slide rod is opened at one end of clamping plate one, and the clamping groove is also opened at one end of clamping plate two.

[0011] As a further solution of the utility model: a support rod supporting the welding body is fixedly installed at the bottom end of the welding base, and the support rod is symmetrically fixedly installed at the bottom end of the welding base.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model first places the galvanized sheet to be welded on the top of the preheating plate on the top of the welding table, then slides the clamping plate 1 and the clamping plate 2 to the width to be welded according to the clamping slide groove and the clamping slide rod, then rotates the adjusting screws at the top of the clamping plate 1 and the clamping plate 2 to control the fixing block to approach the galvanized sheet, and clamps and fixes the galvanized sheet, and at the same time rotates the adjusting screw at one end of the L-shaped clamping plate at one end of the clamping plate 1 to clamp and fix the galvanized sheet, and the clamping assembly can clamp and fix galvanized sheets of different sizes, thereby increasing the functionality of the welding machine body for welding the galvanized sheet;

[0014] By connecting the power supply of the resistance wire grid through the power interface, the preheating plate can be heated through the resistance wire grid and the galvanized sheet can be preheated. After that, the staff will weld the galvanized sheet through the welding assembly. The galvanized sheet can be preheated through the preheating assembly, which can reduce the release of coating gas during welding and increase the quality stability of the welding joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the expanded structure of the preheating component of the utility model;

[0017] Figure 3 This utility model Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0018] Figure 4 It is a structural schematic diagram of the clamping block 1 of the utility model;

[0019] Figure 5 It is a side structural schematic diagram of the practical welding machine body.

[0020] In the figure: 1. Welding body; 11. Welding base; 12. Welding table; 13. Welding assembly; 14. Support rod; 15. Heat dissipation hole; 2. Preheating assembly; 21. Preheating chamber; 22. Resistance wire grid; 23. Preheating plate; 24. Power interface; 3. Clamping assembly; 31. Snap-on slide bar; 32. Clamping plate 2; 33. Clamping plate 1; 34. Snap-on slide groove; 35. Adjusting screw; 36. Fixing block; 37. L-shaped clamping plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The following is an explanation of the embodiments of the present utility model based on the overall structure of the present utility model.

[0023] Reference Figures 1 to 5 In an embodiment of the utility model, a laser welding device based on a galvanized sheet comprises a welding body 1, the welding body 1 comprises a welding base 11 and a welding table 12 arranged at the top of the welding base 11, a preheating component 2 for preheating the galvanized sheet welding is arranged at the top of the welding table 12, the preheating component 2 comprises a preheating chamber 21 opened inside the welding table 12, a resistance wire grid 22 for heating is arranged inside the preheating chamber 21, a preheating plate 23 is arranged directly above the resistance wire grid 22 and inside the preheating chamber 21, a power supply interface 24 for electrically connecting the resistance wire grid 22 is arranged at one end of the welding table 12, and clamping components 3 for clamping the galvanized sheet for welding are symmetrically arranged at both ends of the welding table 12.

[0024] Reference Figure 1 and Figure 2 A welding assembly 13 for welding the galvanized sheet is arranged on the top of the welding table 12, and heat dissipation holes 15 for dissipating heat from the internal electrical components are symmetrically opened at both ends of the welding base 11. A support rod 14 for supporting the welding body 1 is fixedly installed at the bottom of the welding base 11, and the support rod 14 is symmetrically fixedly installed at the bottom of the welding base 11.

[0025] Reference Figure 1 and Figure 4The clamping assembly 3 includes a clamping plate 33 slidably connected to one end of the welding platform 12, and the clamping plate 33 is symmetrically slidably connected to the two ends of the welding platform 12. The top of the clamping plate 33 is rotatably connected to an adjusting screw 35 for adjusting the clamping height, and the adjusting screw 35 passes through the clamping plate 33 and is fixedly connected to a fixing block 36 for clamping the galvanized sheet. The clamping assembly 3 also includes a clamping plate 32 slidably connected to one end of the welding platform 12 and close to one end of the welding assembly 13, and the clamping plate 32 is symmetrically slidably connected to the two ends of the welding platform 12, and the clamping Plate 2 32 is also rotatably connected with an adjusting screw 35, and one end of the clamping plate 1 33 is fixedly installed with an L-shaped clamping plate 37 for clamping the galvanized plate, and the L-shaped clamping plate 37 is also rotatably connected with an adjusting screw 35. One end of the welding table 12 is fixed with a clamping slide rod 31 for adjusting the clamping distance between the clamping plate 1 33 and the clamping plate 2 32, and the clamping slide rod 31 is symmetrically fixed at both ends of the welding table 12, and one end of the clamping plate 1 33 is provided with a clamping groove 34 for slidingly engaging with the clamping slide rod 31, and the clamping groove 34 is also opened at one end of the clamping plate 2 32.

[0026] The working principle of the utility model is as follows: first, the galvanized sheet to be welded is placed on the top of the preheating plate 23 at the top of the welding table 12, and then the clamping plate 1 33 and the clamping plate 2 32 are slid to the width to be welded according to the clamping slide groove 34 and the clamping slide rod 31, and then the adjusting screw 35 at the top of the clamping plate 1 33 and the clamping plate 2 32 is rotated to control the fixing block 36 to approach the galvanized sheet and clamp the galvanized sheet, and at the same time, the adjusting screw 35 at one end of the L-shaped clamping plate 37 at one end of the clamping plate 1 33 is rotated to adjust the galvanized sheet. The galvanized sheets of different sizes can be clamped and fixed by the clamping assembly 3, thereby increasing the functionality of the welding machine 1 for welding the galvanized sheets. Then, the power supply of the resistance wire grid 22 is turned on through the power interface 24, and the preheating plate 23 can be heated through the resistance wire grid 22 to preheat the galvanized sheets. Then, the staff welds the galvanized sheets through the welding assembly 13, and the galvanized sheets can be preheated through the preheating assembly 2, thereby reducing the release of coating gas during welding and increasing the quality stability of the welded joint.

[0027] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A laser welding device based on galvanized sheet, characterized in that: The invention comprises a welding machine body (1), wherein the welding machine body (1) comprises a welding base (11) and a welding table (12) arranged at the top of the welding base (11); a preheating component (2) for preheating galvanized sheet metal for welding is arranged at the top of the welding table (12); the preheating component (2) comprises a preheating chamber (21) opened inside the welding table (12); a resistance wire grid (22) for heating is arranged inside the preheating chamber (21); a preheating plate (23) is arranged directly above the resistance wire grid (22) and inside the preheating chamber (21); a power supply interface (24) for electrically connecting the resistance wire grid (22) is arranged at one end of the welding table (12); and clamping components (3) for clamping the galvanized sheet metal for welding are symmetrically arranged at both ends of the welding table (12).

2. A laser welding device based on galvanized sheet according to claim 1, characterized in that: A welding assembly (13) for welding the galvanized sheet is arranged at the top of the welding platform (12), and heat dissipation holes (15) for dissipating heat from internal electrical components are symmetrically provided at both ends of the welding base (11).

3. A laser welding device based on galvanized sheet according to claim 1, characterized in that: The clamping assembly (3) comprises a clamping plate (33) slidably connected to one end of the welding platform (12), and the clamping plate (33) is symmetrically slidably connected to the two ends of the welding platform (12), and the top end of the clamping plate (33) is rotatably connected to an adjusting screw (35) for adjusting the clamping height, and the adjusting screw (35) passes through the clamping plate (33) and is fixedly connected to a fixing block (36) for clamping the galvanized sheet.

4. A laser welding device based on galvanized sheet according to claim 1, characterized in that: The clamping assembly (3) further comprises a second clamping plate (32) which is slidably connected to one end of the welding platform (12) and is disposed near one end of the welding assembly (13), and the second clamping plate (32) is symmetrically slidably connected to the two ends of the welding platform (12), and the second clamping plate (32) is also rotatably connected to an adjusting screw (35).

5. The laser welding device based on galvanized sheet according to claim 3, characterized in that: An L-shaped clamping plate (37) for clamping the galvanized sheet is fixedly mounted on one end of the clamping plate (33), and the L-shaped clamping plate (37) is also rotatably connected to an adjusting screw (35).

6. The laser welding device based on galvanized sheet according to claim 1, characterized in that: A clamping slide bar (31) for adjusting the clamping distance between the first clamping plate (33) and the second clamping plate (32) is fixedly provided at one end of the welding platform (12), and the clamping slide bar (31) is symmetrically fixedly provided at both ends of the welding platform (12), and a clamping slide groove (34) for slidably clamping with the clamping slide bar (31) is provided at one end of the first clamping plate (33), and the clamping slide groove (34) is also provided at one end of the second clamping plate (32).

7. The laser welding device based on galvanized sheet according to claim 1, characterized in that: A support rod (14) for supporting the welding machine body (1) is fixedly mounted on the bottom end of the welding base (11), and the support rod (14) is symmetrically fixedly mounted on the bottom end of the welding base (11).

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