A welding device for unequal thickness aluminous silicon coated steel sheet

Abstract

The application discloses a welding device for unequal-thickness aluminum-silicon coated steel plates, and belongs to the field of steel plate welding equipment.The welding device comprises a welding table, a support arranged on the welding table, a sliding block moving axially on the support, and a welding torch arranged on the sliding block; further comprising a clamping mechanism arranged on the welding table and symmetrically along the welding torch for clamping and fixing the aluminum-silicon coated steel plate; a polishing mechanism for polishing the weld of the steel plate is arranged on the front side of the sliding block corresponding to the walking track of the welding torch, the polishing mechanism comprises a rotating shaft rotatably inserted into the sliding block, a grinding wheel fixedly sleeved on the rotating shaft, and a first motor fixedly installed on the sliding block, and the output end of the first motor is fixedly connected with the shaft rod of the rotating shaft. By arranging the polishing mechanism in front of the walking track of the welding torch, the aluminum-silicon coating on the weld of the steel plate can be effectively removed, the aluminum-silicon coating has no adverse effect on the welding quality, the welding quality of the steel plate is remarkably improved, and the occurrence probability of defects such as pores, inclusions and cracks in the weld is reduced.

Description

Technical Field

[0001] This application relates to the technical field of steel plate welding equipment, specifically a welding device for aluminum-silicon coated steel plates of unequal thickness. Background Technology

[0002] In modern industrial production, aluminum-silicon coated steel sheets have been widely used in many fields such as automobile manufacturing, aerospace, and construction due to their excellent corrosion resistance, good heat reflectivity, and high strength-to-weight ratio.

[0003] In the actual processing of aluminosilicate coated steel sheets, the presence of the aluminosilicate coating alters the chemical and physical properties of the steel sheet surface. During welding, the aluminosilicate coating is prone to melting, evaporation, and complex metallurgical reactions with the base material and welding materials. Common welding methods, such as traditional arc welding and resistance spot welding, struggle to effectively control these adverse reactions when dealing with aluminosilicate coatings. This often leads to defects such as porosity, inclusions, and cracks in the weld, severely affecting the weld quality and mechanical properties. Due to these defects, the performance of the welded product is significantly reduced; for example, it is prone to premature failure under dynamic loads or harsh environmental conditions, greatly shortening the product's actual service life and increasing maintenance costs and safety hazards.

[0004] Therefore, this application provides a welding apparatus for aluminum-silicon coated steel plates of unequal thickness to solve the above-mentioned problems. Utility Model Content

[0005] This application provides a welding device for aluminum-silicon coated steel plates of unequal thickness, which aims to solve the problems mentioned in the background art, such as the coating affecting the welding quality during the welding of aluminum-silicon coated steel plates.

[0006] To achieve the above objectives, this application provides the following technical solution: a welding device for aluminum-silicon coated steel plates of unequal thickness, comprising a welding table, a support mounted on the welding table, a slider that moves axially on the support, and a welding torch mounted on the slider; further comprising a clamping mechanism mounted on the welding table and symmetrically arranged along the welding torch for clamping and fixing the aluminum-silicon coated steel plate.

[0007] To facilitate grinding of the weld seams of aluminum-silicon coated steel plates, a grinding mechanism is provided on the slider corresponding to the front side of the welding torch's travel path. This grinding mechanism includes a rotating shaft rotatably inserted into the slider, a grinding wheel fixedly mounted on the rotating shaft, and a first motor fixedly mounted on the slider. The output end of the first motor is fixedly connected to the shaft of the rotating shaft. During welding, the slider drives the grinding mechanism and the welding torch to move together. Since the grinding mechanism is located in front of the welding torch's travel path, starting the first motor causes its output end to rotate the rotating shaft, which in turn causes the grinding wheel fixedly mounted on the shaft to rotate at high speed. The rotating grinding wheel grinds the weld seams of the steel plate, removing the aluminum-silicon coating. The welding torch then welds the ground steel plate. By setting a grinding mechanism in front of the welding torch's travel path, the aluminum-silicon coating on the steel plate weld seams can be effectively removed, reducing the impact of the aluminum-silicon coating on welding and improving welding quality.

[0008] Preferably, to facilitate dust removal during the grinding process, the slider is equipped with a dust removal mechanism. This mechanism includes a vacuum cleaner fixedly mounted on the slider, a dust collection hood fitted onto the grinding wheel and fixedly connected to the slider, and a suction pipe fixedly inserted into the bottom of the dust collection hood and communicating with it. The suction pipe is fixedly connected to the input end of the vacuum cleaner. This dust removal mechanism effectively solves the problem of dust pollution during grinding affecting the welding environment, preventing dust from entering the welding area and affecting welding quality, further ensuring the stability and reliability of the welding process. It also helps improve the working environment and protect the health of operators.

[0009] Preferably, to facilitate the movement of the slider: the bracket is provided with a drive mechanism for driving the slider, the drive mechanism including a U-shaped frame, a second lead screw threaded onto the slider and rotatably connected to the U-shaped frame, a guide rod slidably inserted onto the slider and fixedly connected to the U-shaped frame, and a second motor fixedly mounted on the U-shaped frame, the output end of the second motor being fixedly connected to the shaft of the second lead screw. The drive mechanism can drive the slider to move axially along the weld seam of the steel plate, ensuring the stability and accuracy of the movement of the welding torch and grinding mechanism, enabling welding and grinding operations to be performed according to a preset trajectory, and improving the quality and efficiency of welding and grinding.

[0010] Preferably, to facilitate welding of steel plates of varying thicknesses: the support frame is equipped with a height adjustment mechanism for driving the U-shaped frame to rise and fall. The height adjustment mechanism includes a hydraulic rod fixedly installed at the upper end of the U-shaped frame, the output end of which passes through the support frame and is fixedly connected to the upper end of the U-shaped frame. A guide rod, fixedly connected to the upper end of the U-shaped frame, is slidably inserted into the support frame. This height adjustment mechanism facilitates welding of steel plates of varying thicknesses, allowing for flexible adjustment of the height of the U-shaped frame and components such as the drive mechanism, welding torch, and grinding mechanism installed on it, according to the actual needs of steel plates of different thicknesses. This ensures that the welding torch maintains a suitable welding distance and angle with the steel plate, improving the adaptability and versatility of the welding device for steel plates of different thicknesses.

[0011] Preferably, to facilitate clamping the steel plate, the clamping mechanism includes a clamping plate slidably disposed on the welding table and a first lead screw rotatably inserted into the welding table and rotatably connected to the clamping plate. A handle is fixedly connected to the end of the first lead screw away from the clamping plate. This clamping mechanism facilitates the clamping and fixing of the steel plate, firmly securing the aluminum-silicon coated steel plate to the welding table, ensuring that the steel plate does not shift during welding and grinding, guaranteeing the accuracy and stability of welding and grinding operations, improving welding quality, and allowing for easy adjustment of the clamping plate position by rotating the handle.

[0012] Preferably, to prevent the clamping plate from scratching the steel plate, a rubber pad is fixedly connected to the end of the clamping plate away from the first lead screw. The rubber pad effectively prevents the clamping plate from scratching the steel plate. When clamping the steel plate, the rubber pad acts as a buffer, protecting the aluminum-silicon coating on the surface of the steel plate from being scratched by the clamping plate, ensuring the surface quality of the steel plate, and preventing the corrosion resistance and appearance of the steel plate from being affected by surface scratches.

[0013] This application, by setting a grinding mechanism in front of the welding torch travel path, can effectively remove the aluminum-silicon coating on the steel plate weld, avoid the aluminum-silicon coating from having an adverse effect on the welding quality, significantly improve the welding quality of the steel plate, and reduce the probability of defects such as porosity, inclusions, and cracks in the weld.

[0014] The dust removal mechanism of this application can effectively solve the problem of dust pollution to the welding environment generated during the grinding process, prevent dust from entering the welding area and affecting the welding quality, further ensure the stability and reliability of the welding, and at the same time help improve the working environment and protect the health of operators.

[0015] The drive mechanism of this application can drive the slider to move axially along the weld seam of the steel plate, ensuring the stability and accuracy of the movement of the welding gun and grinding mechanism, so that the welding and grinding operations can be carried out according to the preset trajectory, thereby improving the quality and efficiency of welding and grinding.

[0016] The height adjustment mechanism of this application facilitates welding of steel plates of different thicknesses. It can flexibly adjust the height of the U-shaped frame and the drive mechanism, welding torch, grinding mechanism and other components installed on the U-shaped frame according to the actual needs of steel plates of different thicknesses, so as to ensure that the welding torch and the steel plate maintain a suitable welding distance and angle, and improve the adaptability and versatility of the welding device for steel plates of different thicknesses.

[0017] The clamping mechanism of this application facilitates the clamping and fixing of steel plates, and can firmly fix aluminum-silicon coated steel plates on the welding table, ensuring that the steel plates will not shift during welding and grinding, guaranteeing the accuracy and stability of welding and grinding operations, improving welding quality, and the position of the clamping plate can be adjusted by turning the handle, making the operation simple. Attached Figure Description

[0018] Figure 1 A schematic diagram of a welding device for aluminum-silicon coated steel plates of unequal thickness;

[0019] Figure 2 A bottom view of the structure of the slider, grinding mechanism, and welding torch;

[0020] Figure 3 This is a schematic diagram of the clamping mechanism.

[0021] In the picture:

[0022] 1. Welding table; 2. Support; 3. Slider; 31. Welding torch; 4. Clamping mechanism; 41. Clamping plate; 411. Rubber pad; 42. First lead screw; 421. Handle; 5. Grinding mechanism; 51. Rotating shaft; 52. Grinding wheel; 53. First motor; 6. Dust removal mechanism; 61. Vacuum cleaner; 62. Dust hood; 63. Dust suction pipe; 7. Drive mechanism; 71. U-shaped frame; 72. Second lead screw; 73. Guide rod; 74. Second motor; 8. Height adjustment mechanism; 81. Hydraulic rod; 82. Guide rod. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0024] This embodiment provides a welding device for aluminum-silicon coated steel plates of unequal thickness, such as... Figure 1-3As shown, the welding device includes a welding table 1, a support 2 mounted on the welding table 1, a slider 3 that moves axially on the support 2, and a welding torch 31 mounted on the slider 3; it also includes a clamping mechanism 4 mounted on the welding table 1 and symmetrically arranged along the welding torch 31 for clamping and fixing aluminum-silicon coated steel plates.

[0025] To facilitate grinding of the weld seams of aluminum-silicon coated steel plates, a grinding mechanism 5 is provided on the slider 3 in front of the welding torch 31's travel path. The grinding mechanism 5 includes a rotating shaft 51 rotatably inserted into the slider 3, a grinding wheel 52 fixedly mounted on the rotating shaft 51, and a first motor 53 fixedly mounted on the slider 3. The output end of the first motor 53 is fixedly connected to the shaft of the rotating shaft 51. By setting the grinding mechanism 5 in front of the welding torch 31's travel path, the aluminum-silicon coating on the steel plate weld seam can be effectively removed, preventing the aluminum-silicon coating from adversely affecting the welding quality, significantly improving the welding quality of the steel plate, and reducing the probability of defects such as porosity, inclusions, and cracks in the weld seam. During steel plate welding, the slider 3 drives the grinding mechanism 5 to move together with the welding torch 31. Since the grinding mechanism 5 is located in front of the welding torch 31's travel path, starting the first motor 53 causes the rotating shaft 51 to rotate, thereby causing the grinding wheel 52 fixedly mounted on the rotating shaft 51 to rotate at high speed. The rotating grinding wheel 52 grinds the weld seam of the steel plate, removing the aluminum-silicon coating at the weld seam. Then, the welding torch 31 welds the ground steel plate. By setting the grinding mechanism 5 in front of the welding torch 31's travel path, the aluminum-silicon coating on the steel plate weld seam can be effectively removed, reducing the impact of the aluminum-silicon coating on the welding and improving the welding quality.

[0026] To facilitate dust removal during the grinding process, a dust removal mechanism 6 is installed on the slider 3. The dust removal mechanism 6 includes a vacuum cleaner 61 fixedly mounted on the slider 3, a dust collection cover 62 fitted onto the grinding wheel 52 and fixedly connected to the slider 3, and a suction pipe 63 fixedly inserted into the bottom of the dust collection cover 62 and connected to it. The suction pipe 63 is fixedly connected to the input end of the vacuum cleaner 61. The dust removal mechanism 6 effectively solves the problem of dust pollution to the welding environment during grinding, preventing dust from entering the welding area and affecting welding quality, further ensuring the stability and reliability of the welding, and also helping to improve the working environment and protect the health of operators. When the grinding mechanism 5 generates dust, the vacuum cleaner 61 starts working, and the vacuum cleaner 61 is connected to the dust collection cover 62 through the suction pipe 63. The dust collection hood 62 mounted on the grinding wheel 52 collects the dust generated by the grinding wheel 52. The dust is sucked into the vacuum cleaner 61 through the suction pipe 63, thereby cleaning the dust during the grinding process and preventing the dust from spreading in the welding environment.

[0027] To facilitate the movement of the slider 3, a drive mechanism 7 is provided on the bracket 2. The drive mechanism 7 includes a U-shaped frame 71, a second lead screw 72 threaded onto the slider 3 and rotatably connected to the U-shaped frame 71, a guide rod 73 slidably inserted onto the slider 3 and fixedly connected to the U-shaped frame 71, and a second motor 74 fixedly mounted on the U-shaped frame 71. The output end of the second motor 74 is fixedly connected to the shaft of the second lead screw 72. The drive mechanism 7 can drive the slider 3 to move axially along the weld seam of the steel plate, ensuring the stability and accuracy of the movement of the welding torch 31 and the grinding mechanism 5, enabling welding and grinding operations to proceed according to a preset trajectory, thus improving the quality and efficiency of welding and grinding. When the second motor 74 is started, its output end drives the second lead screw 72 to rotate. Since the slider 3 is threaded onto the second lead screw 72 and simultaneously slidably inserted onto the guide rod 73 fixedly connected to the U-shaped frame 71, when the second lead screw 72 rotates, the slider 3, under the guidance of the guide rod 73, can only move axially along the direction of the guide rod 73, that is, along the weld seam of the steel plate, thereby driving the welding gun 31 and grinding mechanism 5 and other components mounted on the slider 3 to move.

[0028] To facilitate welding of steel plates of varying thicknesses, the support frame 2 is equipped with a height adjustment mechanism 8 for driving the U-shaped frame 71. The height adjustment mechanism 8 includes a hydraulic rod 81 fixedly installed at the upper end of the U-shaped frame 71. The output end of the hydraulic rod 81 passes through the support frame 2 and is fixedly connected to the upper end of the U-shaped frame 71. A guide rod 82, fixedly connected to the upper end of the U-shaped frame 71, is slidably inserted into the support frame 2. The height adjustment mechanism 8 facilitates welding of steel plates of varying thicknesses, allowing for flexible adjustment of the height of the U-shaped frame 71 and components such as the drive mechanism 7, welding torch 31, and grinding mechanism 5 installed on the U-shaped frame 71 according to the actual needs of different thickness steel plates. This ensures that the welding torch 31 maintains a suitable welding distance and angle with the steel plate, improving the adaptability and versatility of the welding device for steel plates of different thicknesses. When welding steel plates of different thicknesses is required, the hydraulic rod 81 is activated. The output end of the hydraulic rod 81 extends or retracts. When the hydraulic rod 81 extends or retracts, it drives the guide rod 82, which is fixedly connected to the upper end of the U-shaped frame 71, to slide on the bracket 2, thereby realizing the lifting and lowering of the U-shaped frame 71 and related components installed on the U-shaped frame 71, and completing the height adjustment.

[0029] To facilitate clamping the steel plate, the clamping mechanism 4 includes a clamping plate 41 slidably mounted on the welding table 1 and a first lead screw 42 rotatably connected to the welding table 1 and rotatingly connected to the clamping plate 41. A handle 421 is fixedly connected to the end of the first lead screw 42 furthest from the clamping plate 41. The clamping mechanism 4 facilitates clamping and fixing of the steel plate, firmly securing the aluminum-silicon coated steel plate to the welding table 1. This ensures the steel plate does not shift during welding and grinding, guaranteeing the accuracy and stability of welding and grinding operations, improving welding quality. Furthermore, the position of the clamping plate 41 can be adjusted by rotating the handle 421, making operation simple. Rotating the handle 421 causes the first lead screw 42, which is rotatably connected to the clamping plate 41, to rotate. Since the clamping plate 41 is slidably mounted on the welding table 1, it moves along the welding table 1 when the first lead screw 42 rotates. By adjusting the position of the clamping plate 41, the steel plate is fixed.

[0030] To prevent the clamping plate 41 from scratching the steel plate, a rubber pad 411 is fixedly connected to the end of the clamping plate 41 away from the first lead screw 42. The rubber pad 411 effectively prevents the clamping plate 41 from scratching the steel plate. When clamping the steel plate, the rubber pad 411 acts as a buffer, protecting the aluminum-silicon coating on the steel plate surface from being scratched by the clamping plate 41, ensuring the surface quality of the steel plate, and preventing surface scratches from affecting the corrosion resistance and appearance of the steel plate. During the clamping process, the rubber pad 411 is located between the clamping plate 41 and the steel plate. The rubber pad 411 has a certain degree of elasticity; when the clamping plate 41 applies clamping force to the steel plate, the rubber pad 411 undergoes elastic deformation, dispersing the clamping force and preventing concentrated force from scratching the surface of the steel plate.

[0031] The wiring diagrams of the first motor 53 and the second motor 74 in this utility model are common knowledge in the field. Their working principle is a well-known technology. The appropriate model is selected according to actual use. Therefore, the control method and wiring arrangement of the first motor 53 and the second motor 74 will not be explained in detail.

[0032] The control method of this application is through a controller. The control circuit of the controller can be implemented by a person skilled in the art through simple programming. The power supply and grounding are also common knowledge in the art. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail here.

[0033] It should be noted that many of the standard parts used in this application are available on the market, while non-standard parts can be specially customized. The connection method used in this application is also a very common method in the mechanical field, and will not be described in detail here.

[0034] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. A welding device for aluminum-silicon coated steel plates of unequal thickness, comprising a welding table (1), a support (2) disposed on the welding table (1), a slider (3) that moves axially on the support (2), and a welding torch (31) disposed on the slider (3); It also includes a clamping mechanism (4) set on the welding table (1) and symmetrically arranged along the welding torch (31) for clamping and fixing aluminum-silicon coated steel plates; Its features are: A grinding mechanism (5) for grinding the weld seam of the steel plate is provided on the front side of the slider (3) corresponding to the travel path of the welding gun (31). The grinding mechanism (5) includes a rotating shaft (51) rotatably inserted on the slider (3), a grinding wheel (52) fixedly mounted on the rotating shaft (51), and a first motor (53) fixedly installed on the slider (3). The output end of the first motor (53) is fixedly connected to the shaft of the rotating shaft (51).

2. The welding apparatus for unequal thickness aluminum-silicon coated steel plates according to claim 1, characterized in that: The slider (3) is provided with a dust removal mechanism (6). The dust removal mechanism (6) includes a vacuum cleaner (61) fixedly installed on the slider (3), a dust collection cover (62) fitted on the grinding wheel (52) and fixedly connected to the slider (3), and a dust collection pipe (63) fixedly inserted into the bottom of the dust collection cover (62) and connected to the dust collection cover (62). The dust collection pipe (63) is fixedly connected to the input end of the vacuum cleaner (61).

3. The welding apparatus for unequal thickness aluminum-silicon coated steel plates according to claim 1, characterized in that: The bracket (2) is provided with a drive mechanism (7) for driving the slider (3) to move. The drive mechanism (7) includes a U-shaped frame (71), a second lead screw (72) threaded into the slider (3) and rotatably connected to the U-shaped frame (71), a guide rod (73) slidably inserted into the slider (3) and fixedly connected to the U-shaped frame (71), and a second motor (74) fixedly installed on the U-shaped frame (71). The output end of the second motor (74) is fixedly connected to the shaft of the second lead screw (72).

4. The welding apparatus for unequal thickness aluminum-silicon coated steel plates according to claim 3, characterized in that: The bracket (2) is provided with a height adjustment mechanism (8) for driving the U-shaped frame (71) to lift. The height adjustment mechanism (8) includes a hydraulic rod (81) fixedly installed at the upper end of the U-shaped frame (71). The output end of the hydraulic rod (81) passes through the bracket (2) and is fixedly connected to the upper end of the U-shaped frame (71). A guide rod (82) is slidably inserted into the bracket (2) and fixedly connected to the upper end of the U-shaped frame (71).

5. The welding apparatus for unequal thickness aluminum-silicon coated steel plates according to claim 1, characterized in that: The clamping mechanism (4) includes a clamping plate (41) slidably disposed on the welding table (1) and a first lead screw (42) rotatably inserted into the welding table (1) and rotatably connected to the clamping plate (41). A handle (421) is fixedly connected to one end of the first lead screw (42) away from the clamping plate (41).

6. The welding apparatus for unequal thickness aluminum-silicon coated steel plates according to claim 5, characterized in that: A rubber pad (411) is fixedly connected to the end of the clamp (41) away from the first lead screw (42).

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