Sheet metal part welding device

Abstract

The utility model belongs to the technical field of sheet metal part production and machining, and particularly relates to a sheet metal part welding device which comprises a workbench and a welding robot which are vertically arranged at intervals, a driving mechanism and a sliding groove are arranged in the workbench at intervals, and a bracket bearing rod is installed in the sliding groove in a sliding mode. A hollow material carrying frame is connected to the exterior of the workbench through a driving mechanism and a bracket bearing rod, a triangular toothed plate is fixed to the top of the material carrying frame, a slag receiving water tank with an opening facing the material carrying frame is formed in the bottom of the workbench, and the length of the slag receiving water tank is larger than that of the material carrying frame. Rollers and flange supporting plates parallel to the material carrying frame are vertically and sequentially arranged in the sliding grooves, the two ends of each roller are rotationally installed at the tops of the adjacent flange supporting plates correspondingly, and concave bearing seats are fixed to the sides, located in the sliding grooves, of the bracket bearing rods. The welding slag collecting device can collect welding slag in the whole process, the welding slag adhering to the interior of the welding device can be reduced, follow-up cleaning is avoided, and the welding ending workload is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of sheet metal production and processing technology, and specifically relates to a sheet metal welding device. Background Technology

[0002] Sheet metal parts, due to their lightweight, high strength, and ease of processing, are widely used in electronic and electrical appliance housings or brackets, automotive parts, aerospace components, building support components, and communication structure supports. In some lightweight steel frames, sheet metal parts require multiple connectors, which are then welded to designated locations.

[0003] In the welding of sheet metal parts, the traditional manual electric welding method has been gradually replaced by automated welding robots under preset programs, which saves time and effort and also allows workers to stay away from harmful gases and glaring light generated during the welding process.

[0004] For welding medium-sized steel frames, the sheet metal parts have many welding points, and the resulting welding slag easily adheres to the support platform below, which will hinder the translation of the sheet metal parts. If a conveyor belt is used to translate the sheet metal parts, the welding slag will gradually accumulate on the conveyor belt, requiring regular cleaning, which will increase the workload of welding finishing work. Utility Model Content

[0005] The purpose of this invention is to provide a sheet metal welding device that can catch welding slag throughout the welding process, thereby reducing the amount of welding slag adhering inside the welding device, avoiding subsequent cleaning, and reducing the amount of finishing work in welding.

[0006] The specific technical solution adopted by this utility model is as follows:

[0007] A sheet metal welding device includes a vertically spaced workbench and a welding robot. The workbench contains a drive mechanism and a sliding groove, with a support bracket slidably mounted inside the groove. A hollow material-carrying frame is connected to the outside of the workbench via the drive mechanism and the support bracket. A triangular toothed plate is fixed to the top of the material-carrying frame. A slag-receiving water tank with an opening facing the material-carrying frame is located at the bottom of the workbench. The length of the slag-receiving water tank is greater than the length of the material-carrying frame. Cold water is filled into the slag-receiving water tank. A layer of fine sand is laid at the bottom to catch falling weld slag. A hollow material-carrying frame and triangular toothed plates support the sheet metal parts. Weld slag falls smoothly through the gaps in the material-carrying frame. The tips of the triangular toothed plates support the bottom surface of the sheet metal parts, which helps to leave a safe distance between the weld and the material-carrying frame. Moreover, the large spacing between the triangular toothed plates facilitates the falling of weld slag. In addition, since the length of the slag-catching water tank is greater than the length of the material-carrying frame, it can catch the weld slag throughout the process, effectively reducing the weld slag adhering inside the welding device, avoiding subsequent cleaning, and reducing the amount of welding finishing work.

[0008] As an alternative, the chute is vertically arranged with rollers and flange support plates parallel to the material carrying frame, with the two ends of the rollers rotatably mounted on the top of the adjacent flange support plates.

[0009] As an alternative, a concave bearing seat is fixed to one side of the corbel load-bearing rod inside the slide groove, and a limiting wheel spaced apart from the inner wall of the slide groove is rotatably installed at the opening of the concave bearing seat.

[0010] As an alternative, the material carrier frame has an exhaust duct inside, and the material carrier frame has suction holes and suction pipes spaced apart on the outside, with the suction holes and suction pipes both connected to the exhaust duct.

[0011] As an alternative, the port of the intake pipe furthest from the exhaust duct is connected in sequence to a filter tank and an air pump, both of which are vertically offset from the material-carrying frame.

[0012] As an alternative, the drive mechanism includes a belt disposed inside the workbench, with both ends of the belt bent and connected to the outside of the adjacent corbel support rods, and traction wheels are provided at the bends of the belt, with a brake motor being driven through the middle of one of the traction wheels.

[0013] As an optional solution, lifting lugs that are offset from the belt are fixed on both sides of the material carrying frame, and angle steel is fixed on the four edges of the outer side of the material carrying frame.

[0014] The technical effects achieved by this utility model are as follows:

[0015] This invention involves filling a slag-receiving tank with cold water and laying a layer of fine sand at the bottom to catch falling weld slag. A hollow material-carrying frame and triangular toothed plates support the sheet metal parts. The gaps in the material-carrying frame allow weld slag to fall smoothly, while the tips of the triangular toothed plates support the bottom of the sheet metal parts, ensuring a safe distance between the weld and the material-carrying frame. Furthermore, the large spacing between the triangular toothed plates facilitates slag fall. Additionally, because the length of the slag-receiving tank is greater than the length of the material-carrying frame, it can catch all the weld slag, effectively reducing the amount of weld slag adhering inside the welding device and avoiding subsequent cleaning, thus reducing the workload of welding finishing.

[0016] During welding, the air inlet of the suction pipe is connected to a negative pressure air source. Since both the suction hole and the suction pipe are connected to the exhaust duct, after the negative pressure air source is turned on, harmful gases can be drawn in along the suction hole and the exhaust duct and then centrally processed. Moreover, the suction hole and the suction pipe can move with the material carrier frame, which can serve the entire welding process. Attached Figure Description

[0017] Figure 1 This is a front view of a sheet metal welding device according to this utility model;

[0018] Figure 2 This is a top view of the workbench of this utility model;

[0019] Figure 3 This is a cross-sectional view of the slide groove of this utility model;

[0020] Figure 4 This is a front view of the material carrier frame of this utility model;

[0021] Figure 5 This is a cross-sectional view of the material-carrying frame of this utility model;

[0022] Figure 6 This is a side view of the corbel load-bearing bar of this utility model.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Workbench; 2. Welding robot; 3. Slide chute; 301. Flange support plate; 302. Roller; 4. Bracket support bar; 401. Concave bearing seat; 402. Limiting wheel; 5. Material carrying frame; 501. Exhaust gas duct; 502. Suction port; 503. Suction pipe; 504. Filter tank; 505. Air pump; 6. Triangular toothed plate; 7. Slag receiving tank; 8. Traction wheel; 9. Belt; 10. Brake motor; 11. Lifting lug; 12. Angle steel. Detailed Implementation

[0025] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0026] like Figures 1-6 As shown, a sheet metal welding device includes a vertically spaced workbench 1 and a welding robot 2. The workbench 1 is fixed to the ground with bolts to place the sheet metal parts horizontally and stably, exposing the parts of the sheet metal parts that need to be welded. The welding robot 2 can be a model MA2010, which is wired and controlled by a DX200 control cabinet. It is suspended by a ceiling rail and has 6 degrees of freedom. The ceiling rail can also use an electric slide rail to move the welding robot 2 longitudinally to expand the coverage area.

[0027] For some medium-sized steel frames required for vehicle bodies, which are quite long and have many weld points on sheet metal parts, the welding slag produced by the welding robot is prone to falling off and requires additional cleaning.

[0028] See attached document Figure 1 , Figure 3 and Figure 4To facilitate the collection of welding slag, this embodiment includes a slag-receiving water tank 7 with its opening facing the material-carrying frame 5 at the bottom of the workbench 1. Cold water is poured into the slag-receiving water tank 7, and a layer of fine sand is laid at the bottom to catch falling welding slag. Inside the workbench 1, a drive mechanism and a slide 3 are spaced apart. The right-angled slide 3 is located inside the workbench 1, and a folded bracket-shaped load-bearing rod 4 is slidably installed inside the slide 3. The workbench 1 is connected to a hollow material-carrying frame 5 via the drive mechanism and the bracket-shaped load-bearing rod 4. The upper end of the bracket-shaped load-bearing rod 4 is fixed to the lower surface of the material-carrying frame 5 with bolts. Because the gaps in the material-carrying frame 5 are much wider than the welding slag, the slag can fall smoothly. To facilitate the removal of welding slag, this embodiment also welds triangular toothed plates 6 to the top of the material carrier frame 5. These triangular toothed plates 6 are arranged side by side, and the tips of the triangular toothed plates 6 support the bottom surface of the sheet metal parts. When the welding robot 2 welds the sheet metal parts, it is convenient to leave a safe distance between the weld and the material carrier frame 5. Moreover, the large spacing between the triangular toothed plates 6 makes it easy for the welding slag to fall off when the drive mechanism pulls the bracket support rod 4 to drive the material carrier frame 5 and the sheet metal parts along the slide 3. In addition, since the length of the slag receiving water tank 7 is greater than the length of the material carrier frame 5, it can catch the welding slag throughout the process, effectively reducing the welding slag adhering inside the welding device, avoiding subsequent cleaning, and reducing the amount of welding finishing work.

[0029] See attached document Figure 2 , Figure 3 and Figure 4 To ensure smooth sliding of the material-carrying frame 5, this embodiment includes vertically arranged rollers 302 and flange support plates 301 parallel to the material-carrying frame 5 inside the chute 3. The flange support plates 301 are vertically welded to the bottom wall of the chute 3, and the two ends of the rollers 302 are rotatably installed on the top of the adjacent flange support plates 301. The bottom of a bracket load-bearing rod 4 is supported by at least three rollers 302, so that the bracket load-bearing rod 4 can move smoothly. In this embodiment, six bracket load-bearing rods 4 are divided into two groups to support the material-carrying frame 5, which makes it easier to maintain the stability of the material-carrying frame 5.

[0030] See attached document Figure 3 , Figure 4 and Figure 6 To straighten the material-carrying frame 5, in this embodiment, a concave bearing seat 401 is fixed to one side of the corbel support rod 4 located inside the slide groove 3 by screws, and a limiting wheel 402 spaced apart from the inner wall of the slide groove 3 is rotatably installed at the opening of the concave bearing seat 401. Once the material-carrying frame 5 tilts left or right, it will drive the limiting wheel 402 to stick to the wall inside the slide groove 3 for horizontal positioning, which makes it convenient for the material-carrying frame 5 to drive the sheet metal parts to be centered.

[0031] See attached document Figure 2 , Figure 4 and Figure 5Since some harmful gases are generated during welding, which can damage the health of workers if inhaled, this embodiment provides an exhaust duct 501 inside the material carrier frame 5 and an air intake hole 502 and an air intake pipe 503 at intervals on the outside of the material carrier frame 5. During welding, the air intake of the air intake pipe 503 is connected to a negative pressure air source. Since the air intake hole 502 and the air intake pipe 503 are both connected to the exhaust duct 501, the harmful gases can be drawn along the air intake hole 502 and the exhaust duct 501 after the negative pressure air source is turned on, and then centrally processed. Moreover, the air intake hole 502 and the air intake pipe 503 can move with the material carrier frame 5 and serve the entire welding process.

[0032] See attached document Figure 2 , Figure 4 and Figure 5 In this embodiment, the negative pressure air source is connected in sequence to a filter tank 504 and an air pump 505 at the port of the suction pipe 503 away from the exhaust duct 501. The air pump 505 can be made of vacuum pump material. After starting, it draws air from the filter tank 504 to form a negative pressure air source, and draws in harmful gases along the suction pipe 503. Activated carbon can be installed in the filter tank 504 to adsorb harmful gases. In addition, the filter tank 504 and the air pump 505 are vertically staggered from the material frame 5 to leave a safe distance and prevent them from rubbing against each other.

[0033] See attached document Figure 1 and Figure 2 The drive mechanism used in this embodiment includes a belt 9 installed inside the workbench 1. The two ends of the belt 9 are bent and connected to the outside of the adjacent bracket support rod 4. Traction wheels 8 are installed at the bends of the belt 9. A brake motor 10 is connected to one of the traction wheels 8 through a V-belt drive. The brake motor 10 can be a YEJ series three-phase asynchronous motor. The brake motor 10 is started and stopped by an external controller that sends and receives control signals via relays. Rotating the traction wheel 8 in the forward direction can pull the belt 9 forward, and rotating the traction wheel 8 in the reverse direction can pull the belt 9 backward.

[0034] See attached document Figure 1 , Figure 2 and Figure 4 Both sides of the load frame 5 are welded with lifting lugs 11 that are offset from the belt 9. The lifting lugs 11 are used to fasten the steel cable and can be used with the crane to lift the load frame 5 for movement or assembly. Angle steel 12 is fixed to the four edges of the outer side of the load frame 5 with screws. Since the angle steel 12 reinforces the four edges of the load frame 5, it can prevent the load frame 5 from breaking and disintegrating.

[0035] The working principle of this utility model is as follows: During operation, the workbench 1 is fixed to the ground with bolts to place sheet metal parts horizontally and stably. The welding robot 2 is suspended by the overhead rail and has 6 degrees of freedom. The overhead rail can also be used to move the welding robot 2 longitudinally.

[0036] During welding, cold water is poured into the slag-receiving tank 7, and a layer of fine sand is laid at the bottom to catch the falling weld slag. The hollow material-carrying frame 5 and the triangular toothed plates 6 arranged side by side outside the workbench 1 support the sheet metal parts. Since the gap of the material-carrying frame 5 is much wider than the weld slag, the weld slag can fall off smoothly. The bottom surface of the sheet metal parts is supported by the tips of the triangular toothed plates 6, which makes it easy to leave a safe distance between the weld and the material-carrying frame 5. Moreover, the large spacing between the triangular toothed plates 6 makes it easy for the weld slag to fall off when the drive mechanism pulls the bracket support rod 4 to move the material-carrying frame 5 and the sheet metal parts along the slide 3. In addition, since the length of the slag-receiving tank 7 is greater than the length of the material-carrying frame 5, it can catch the weld slag throughout the process, effectively reducing the weld slag adhering inside the welding device, avoiding subsequent cleaning, and reducing the amount of welding finishing work.

[0037] The above description is merely an optional embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional methods in the field.

Claims

1. A sheet metal welding device, characterized in that: The system includes a vertically spaced workbench (1) and a welding robot (2). The workbench (1) is equipped with a drive mechanism and a slide (3) at intervals. A bracket support rod (4) is slidably installed inside the slide (3). A hollow material carrying frame (5) is connected to the outside of the workbench (1) through the drive mechanism and the bracket support rod (4). A triangular toothed plate (6) is fixed on the top of the material carrying frame (5). A slag receiving water tank (7) with an opening facing the material carrying frame (5) is provided at the bottom of the workbench (1). The length of the slag receiving water tank (7) is greater than the length of the material carrying frame (5).

2. The sheet metal welding device according to claim 1, characterized in that: The chute (3) is vertically arranged with rollers (302) and flange support plates (301) parallel to the material carrier frame (5). The two ends of the rollers (302) are respectively rotatably installed on the top of the adjacent flange support plates (301).

3. The sheet metal welding device according to claim 1, characterized in that: The corbel support rod (4) is fixed with a concave bearing seat (401) on one side inside the slide groove (3), and a limiting wheel (402) spaced from the inner wall of the slide groove (3) is rotatably installed at the opening of the concave bearing seat (401).

4. The sheet metal welding device according to claim 1, characterized in that: The material carrier frame (5) has an exhaust gas duct (501) inside. The material carrier frame (5) has an air intake hole (502) and an air intake pipe (503) spaced apart on the outside. The air intake hole (502) and the air intake pipe (503) are both connected to the exhaust gas duct (501).

5. A sheet metal welding device according to claim 4, characterized in that: The port of the air intake pipe (503) away from the exhaust duct (501) is connected in sequence to a filter tank (504) and an air pump (505), and the filter tank (504) and the air pump (505) are both vertically offset from the material carrier frame (5).

6. The sheet metal welding device according to claim 1, characterized in that: The drive mechanism includes a belt (9) disposed inside the workbench (1). The two ends of the belt (9) are bent and connected to the outside of the adjacent corbel support rod (4), and each bend of the belt (9) is provided with a traction wheel (8). A brake motor (10) is connected to the middle of one of the traction wheels (8).

7. A sheet metal welding device according to claim 6, characterized in that: Both sides of the material carrier frame (5) are fixed with lifting lugs (11) that are offset from the belt (9), and the four edges on the outside of the material carrier frame (5) are fixed with angle steel (12).

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