Workpiece welding device

Abstract

The utility model belongs to the technical field of welding equipment, and particularly relates to a workpiece welding device which comprises a purification box, a filter screen is installed between the two sides of the purification box, a sliding groove with a downward opening is formed in the top side of the purification box, a sliding block is installed in the sliding groove in a sliding mode, and a driving motor is installed on the bottom side of the sliding block. A gear is installed at the top end of an output shaft of the driving motor, a rack is installed on one side of the top end of the purification box, and a cleaning brush is installed at the bottom end of the output shaft of the driving motor. The driving motor and the cleaning brush installed at the bottom end of the output shaft of the driving motor can do linear reciprocating motion along the sliding groove, so that the filter screen is automatically cleaned at regular intervals, the smoke dust adsorption and purification effect is guaranteed, and filtered and purified air is exhausted through an exhaust hole formed in the other side of the purification box.

Description

Technical Field

[0001] This utility model relates to the field of welding equipment technology, specifically a workpiece welding device. Background Technology

[0002] In the production and processing of metal sheets, welding is required to splice the metal sheets in order to enhance their structural strength. Therefore, a welding device is needed.

[0003] A Chinese patent with authorization announcement number CN219561946U discloses a sheet metal welding device that provides secure clamping and reduces welding fumes. The device includes a vertical clamping bracket with its lower end vertically welded to one end of a welding workbench; a vertical clamping screw with its lower end connected to a vertical clamping plate opposite to the upper surface of the welding workbench; a horizontal clamping bracket vertically welded to the other end of the welding workbench; a horizontal clamping screw connected to the horizontal clamping bracket with a screw hole; a horizontal clamping plate connected to the front end of the horizontal clamping screw; two ends of a support frame vertically connected to the two ends of the welding workbench; a purification chamber mounted on the crossbeam of the support frame; and a dust extraction hood and an exhaust pipe mounted at the lower and upper parts of the purification chamber, respectively. This invention provides secure clamping of sheet metal while filtering welding fumes, preventing environmental pollution and reducing the health hazards of fumes to on-site workers.

[0004] However, the above-mentioned welding device still has some problems. In order to prevent welding fumes from polluting the outside air during the welding process, adsorption and purification operations are required. However, in the existing technology, the filter screen cannot be cleaned regularly. As the welding operation proceeds, the particulate matter in the fumes will continue to accumulate on the filter screen, thereby reducing the effect of fumes adsorption and purification. Therefore, a workpiece welding device is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology and solve the problems mentioned in the background technology, this utility model proposes a workpiece welding device.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A workpiece welding device of this utility model includes a workbench, a fixed frame installed at the middle edge of the top side of the workbench, a purification box installed on one side of the fixed frame, a smoke extraction pipe installed on one side of the purification box, one end of the smoke extraction pipe connected to a smoke hood, a negative pressure motor installed on the other side of the purification box, three fan blades equidistantly installed at the output end of the negative pressure motor, an exhaust hole opened inside the other side of the purification box, a filter screen installed between the two sides of the purification box, a downward-opening sliding groove opened inside the top side of the purification box, a slider slidably installed inside the sliding groove, a drive motor installed on the bottom side of the slider, a gear installed at the top of the output shaft of the drive motor, a rack installed on one side of the top of the purification box, and the gear and rack meshing with each other, a cleaning brush installed at the bottom of the output shaft of the drive motor, the cleaning brush contacting the filter screen to achieve periodic automatic cleaning of the filter screen, ensuring the effect of smoke and dust adsorption and purification, and avoiding the decrease in purification efficiency due to filter screen clogging.

[0007] Preferably, a rectangular groove is formed inside the top side of the fixed frame, and a movable block is slidably installed inside the rectangular groove. A support base is installed on one side of the fixed frame, and a hydraulic cylinder is installed inside the support base. The actuating end of the hydraulic cylinder extends slidably into the rectangular groove and is fixedly installed on one side of the movable block. A cylinder is installed on the bottom side of the movable block, and a welding machine is installed at the end of the actuating rod of the cylinder. The fume hood is fitted on the outside of the welding machine, so that the welding machine can move flexibly in the horizontal direction to adapt to the welding needs of different positions.

[0008] Preferably, a servo motor is installed on one side of the workbench, and a bidirectional lead screw is installed at the output end of the servo motor. Two upward-opening slide rails are opened inside the top side of the workbench. A sliding plate is slidably installed inside the slide rails. A threaded hole is opened inside the bottom end of the sliding plate. One end of the bidirectional lead screw passes through the threaded hole and is rotatably installed inside the slide rail, thereby realizing the clamping operation of metal plates of different lengths.

[0009] Preferably, a rotating shaft is rotatably mounted inside the top of the sliding plate, a mounting bracket is mounted at one end of the rotating shaft, a telescopic rod is installed through the top side of the mounting bracket, and a pressure plate is mounted at the working end of the telescopic rod, which can fix metal plates of different thicknesses and ensure stability during the welding process.

[0010] Preferably, a handle is installed at the other end of the rotating shaft, and a slide rod is installed at one end of the handle. An arc-shaped groove is formed inside one side of the sliding plate, and the arc-shaped groove is set at 180 degrees. One end of the slide rod is slidably installed inside the arc-shaped groove. Two limiting screw holes are symmetrically opened inside the sliding plate on the outside of the rotating shaft. A locking screw is rotatably installed at the middle end of the handle, and one end of the locking screw is movably installed through the limiting screw hole, so that the metal plate can be easily flipped, which facilitates welding operations on both sides of the metal plate and improves welding efficiency.

[0011] Preferably, a control panel is installed on one side of the workbench. The control panel is used to operate and control the electrical components inside the device, thereby enabling centralized control of the device's electrical components.

[0012] The advantages of this utility model are:

[0013] 1. As time goes by, in order to prevent the filter screen from clogging and affecting the purification effect, the drive motor is started to drive the gear to rotate. Due to the meshing relationship between the gear and the rack, the drive motor and the cleaning brush installed at the bottom of its output shaft will move back and forth in a straight line along the slide, thereby cleaning the filter screen automatically and regularly, ensuring the effect of smoke and dust adsorption and purification. The air after filtration and purification is discharged through the exhaust hole opened inside the other side of the purification box.

[0014] 2. In this utility model, both locking screws are removed from the limiting screw holes. When the handle is turned, the sliding rod installed at one end of the handle slides in the arc-shaped groove opened inside one side of the sliding plate. The sliding of the sliding rod drives the rotating shaft to rotate, which in turn drives the mounting frame to rotate, thereby realizing the flipping of the metal plate. This facilitates welding operations on both sides of the metal plate and improves welding efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the intermediate axis side view of the present invention;

[0017] Figure 2 A schematic diagram of the moving components of the welding gun in a welding device.

[0018] Figure 3 A schematic diagram of the fume purification filter cleaning component in a welding device;

[0019] Figure 4 This is a schematic diagram of the plate clamping structure in the welding device;

[0020] Figure 5 This is a schematic diagram of the flipping component structure in the welding device.

[0021] In the diagram: 1. Workbench; 2. Fixture; 3. Purification box; 4. Smoke pipe; 5. Smoke hood; 6. Negative pressure motor; 7. Fan blade; 8. Exhaust port; 9. Filter screen; 10. Slide rail; 11. Slider; 12. Drive motor; 13. Gear; 14. Rack; 15. Cleaning brush; 16. Rectangular groove; 17. Movable block; 18. Support base; 19. Hydraulic cylinder; 20. Pneumatic cylinder; 21. Welding machine; 22. Servo motor; 23. Two-way lead screw; 24. Slide rail; 25. Sliding plate; 26. Rotating shaft; 27. Mounting bracket; 28. Telescopic rod; 29. ​​Pressure plate; 30. Handle; 31. Slide rod; 32. Arc groove; 33. Limit screw hole; 34. Locking screw; 35. Control panel. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0023] Please see Figure 1-3 As shown, a workpiece welding device includes a workbench 1, a fixed frame 2 installed at the middle edge of the top side of the workbench 1, a purification box 3 installed on one side of the fixed frame 2, a smoke pipe 4 installed on one side of the purification box 3, a smoke hood 5 connected to one end of the smoke pipe 4, a negative pressure motor 6 installed on the other side of the purification box 3, three fan blades 7 equidistantly installed at the output end of the negative pressure motor 6, an exhaust hole 8 opened inside the other side of the purification box 3, a filter screen 9 installed between the two sides of the purification box 3, a downward-opening sliding groove 10 opened inside the top side of the purification box 3, a slider 11 slidably installed inside the sliding groove 10, a drive motor 12 installed on the bottom side of the slider 11, a gear 13 installed at the top end of the output shaft of the drive motor 12, a rack 14 installed on one side of the top of the purification box 3, and the gear 13 and the rack 14 mesh with each other, and a cleaning brush 15 installed at the bottom end of the output shaft of the drive motor 12, the cleaning brush 15 being in contact with the filter screen 9;

[0024] A rectangular groove 16 is formed inside the top side of the fixed frame 2. A movable block 17 is slidably installed inside the rectangular groove 16. A support base 18 is installed on one side of the fixed frame 2. A hydraulic cylinder 19 is installed inside the support base 18. The actuating end of the hydraulic cylinder 19 extends slidably into the rectangular groove 16 and is fixedly installed on one side of the movable block 17. A cylinder 20 is installed on the bottom side of the movable block 17. A welding machine 21 is installed at the end of the actuating rod of the cylinder 20. The fume hood 5 is fitted onto the outside of the welding machine 21. A control panel 35 is installed on one side of the workbench 1. During operation, however, in the prior art, the filter screen 9 cannot be cleaned regularly. As welding progresses... As the process continues, particulate matter in the smoke and dust will continuously accumulate on the filter screen 9, thereby reducing the effect of smoke and dust adsorption and purification. When welding is required at different positions of the metal sheet, the hydraulic cylinder 19 is activated. The action end of the hydraulic cylinder 19 pushes the movable block 17 to slide horizontally in the rectangular groove 16 opened inside the top side of the fixed frame 2. The movement of the movable block 17 drives the cylinder 20 and the welding machine 21 to move horizontally, so that the welding machine 21 can flexibly reach different positions and adapt to the welding needs of different positions. After reaching the appropriate position, the height of the welding machine 21 is adjusted by controlling the extension and retraction of the cylinder 20 to perform welding operations on the metal sheet. The welding machine 21 is model YD-350GL5.

[0025] When the welding machine 21 is working, the negative pressure motor 6 is started. The output end of the negative pressure motor 6 drives the three fan blades 7 to rotate at high speed, creating a negative pressure environment in the purification box 3. Under the action of negative pressure, the smoke pipe 4 draws the welding fumes into the purification box 3. When the fumes pass through the filter screen 9, the particles and impurities are filtered and intercepted. Over time, in order to prevent the filter screen 9 from becoming clogged and affecting the purification effect, the drive motor 12 is started, which drives the gear 13 to rotate. Due to the meshing relationship between the gear 13 and the rack 14, the drive motor 12 and the cleaning brush 15 installed at the bottom of its output shaft will move back and forth in a straight line along the slide groove 10, thereby periodically and automatically cleaning the filter screen 9 to ensure the effect of fume adsorption and purification. The filtered and purified air is discharged through the exhaust hole 8 opened inside the other side of the purification box 3.

[0026] Please see Figure 1 , 2 As shown in Figures 4 and 5, a servo motor 22 is installed on one side of the workbench 1, and a bidirectional lead screw 23 is installed at the output end of the servo motor 22. Two upward-opening slide rails 24 are opened inside the top side of the workbench 1. A sliding plate 25 is slidably installed inside the slide rail 24. A threaded hole is opened inside the bottom end of the sliding plate 25. One end of the bidirectional lead screw 23 passes through the threaded hole and is rotatably installed inside the slide rail 24.

[0027] A rotating shaft 26 is rotatably mounted inside the top of the sliding plate 25. A mounting bracket 27 is mounted on one end of the rotating shaft 26. A telescopic rod 28 is installed through the top side of the mounting bracket 27. A pressure plate 29 is mounted on the working end of the telescopic rod 28.

[0028] A handle 30 is installed at the other end of the rotating shaft 26, and a slide rod 31 is installed at one end of the handle 30. An arc-shaped groove 32 is formed inside one side of the sliding plate 25, and the arc-shaped groove 32 is set at 180 degrees. One end of the slide rod 31 is slidably installed inside the arc-shaped groove 32. Two limiting screw holes 33 are symmetrically formed inside the sliding plate 25 outside the rotating shaft 26. A locking screw 34 is rotatably installed at the middle of the handle 30, and one end of the locking screw 34 is movably inserted through the limiting screw hole 33. During operation, in the production and processing of metal sheets, welding is required to splice the metal sheets to enhance their structural strength. A welding device is required. During the welding process, in order to ensure the welding effect of the metal plates, the metal plates are first placed in the mounting frame 27 and the metal plates are in contact with the inner side of the mounting frame 27. The telescopic rod 28 is activated, and the action end of the telescopic rod 28 pushes the pressure plate 29 downward to fix the metal plates of different thicknesses and ensure the stability during the welding process. Then, the servo motor 22 is activated, and the output end of the servo motor 22 drives the bidirectional lead screw 23 to rotate. Under the action of the screw, the sliding plate 25 will move towards or away from each other along the slide rail 24, thereby bringing the two metal plates closer to each other and realizing the butt joint operation of the two metal plates, which facilitates the welding of the metal plates.

[0029] During the welding process, if it is necessary to flip the metal sheet, first remove both locking screws 34 from the limiting screw holes 33, rotate the handle 30, and the slide rod 31 installed at one end of the handle 30 slides in the arc-shaped groove 32 opened inside one side of the sliding plate 25. The sliding of the slide rod 31 drives the rotating shaft 26 to rotate, which in turn drives the mounting bracket 27 to rotate, thereby flipping the metal sheet, which facilitates welding operations on both sides of the metal sheet and improves welding efficiency. After the flipping is completed, screw the locking screws 34 into the limiting screw holes 33 to fix the handle 30 and prevent the metal sheet from rotating during the welding process.

[0030] Working principle: First, the metal sheet is placed in the mounting bracket 27 and made to contact the inner side of the mounting bracket 27. Then, the telescopic rod 28 is activated. The action end of the telescopic rod 28 pushes the pressure plate 29 downward, thereby fixing the metal sheets of different thicknesses and ensuring stability during the welding process. Then, the servo motor 22 is activated. The output end of the servo motor 22 drives the bidirectional lead screw 23 to rotate. Under the action of the thread, the sliding plate 25 will move towards or away from each other along the slide rail 24, thereby bringing the two metal sheets closer to each other and realizing the butt joint operation of the two metal sheets, which facilitates the welding of the metal sheets.

[0031] When welding is required at different locations on the metal sheet, the hydraulic cylinder 19 is activated. The actuating end of the hydraulic cylinder 19 pushes the movable block 17 to slide horizontally in the rectangular groove 16 opened inside the top side of the fixed frame 2. The movement of the movable block 17 drives the cylinder 20 and the welding machine 21 to move horizontally, so that the welding machine 21 can flexibly reach different positions and adapt to the welding needs of different positions. After reaching the appropriate position, the height of the welding machine 21 is adjusted by controlling the extension and retraction of the cylinder 20 to perform the welding operation on the metal sheet. The model of the welding machine 21 is YD-350GL5.

[0032] When the welding machine 21 is working, the negative pressure motor 6 is started. The output end of the negative pressure motor 6 drives the three fan blades 7 to rotate at high speed, creating a negative pressure environment in the purification box 3. Under the action of negative pressure, the smoke pipe 4 sucks the welding fumes into the purification box 3. When the fumes pass through the filter screen 9, the particles and impurities are filtered and intercepted. As time goes by, in order to prevent the filter screen 9 from clogging and affecting the purification effect, the drive motor 12 is started, which drives the gear 13 to rotate. Due to the meshing relationship between the gear 13 and the rack 14, the drive motor 12 and the cleaning brush 15 installed at the bottom of its output shaft will move back and forth in a straight line along the slide groove 10, thereby periodically and automatically cleaning the filter screen 9 to ensure the effect of fume adsorption and purification. The air after filtration and purification is discharged through the exhaust hole 8 opened inside the other side of the purification box 3.

[0033] If it is necessary to flip the metal sheet, first remove both locking screws 34 from the limiting screw holes 33, turn the handle 30, and the slide rod 31 installed at one end of the handle 30 will slide in the arc-shaped groove 32 opened inside the side of the sliding plate 25. The sliding of the slide rod 31 will drive the rotating shaft 26 to rotate, which in turn will drive the mounting bracket 27 to rotate, thereby flipping the metal sheet. This facilitates welding operations on both sides of the metal sheet and improves welding efficiency. After flipping, screw the locking screws 34 into the limiting screw holes 33 to fix the handle 30 and prevent the metal sheet from rotating during the welding process.

[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A workpiece welding device, characterized in that: The system includes a workbench (1), a mounting bracket (2) at the top edge of the workbench (1), a purification box (3) on one side of the mounting bracket (2), a fume extraction pipe (4) on one side of the purification box (3), a fume extraction hood (5) connected to one end of the fume extraction pipe (4), a negative pressure motor (6) on the other side of the purification box (3), three fan blades (7) equidistantly mounted on the output end of the negative pressure motor (6), an exhaust vent (8) inside the other side of the purification box (3), and a filter screen (9) installed between the two sides of the purification box (3). The purification box (3) has a downward-facing sliding groove (10) inside its top side. A slider (11) is slidably installed inside the sliding groove (10). A drive motor (12) is installed on the bottom side of the slider (11). A gear (13) is installed at the top of the output shaft of the drive motor (12). A rack (14) is installed on one side of the top of the purification box (3), and the gear (13) and the rack (14) mesh with each other. A cleaning brush (15) is installed at the bottom of the output shaft of the drive motor (12), and the cleaning brush (15) is in contact with the filter screen (9).

2. The workpiece welding device according to claim 1, characterized in that: The top side of the fixed frame (2) has a rectangular groove (16) inside. A movable block (17) is slidably installed inside the rectangular groove (16). A support seat (18) is installed on one side of the fixed frame (2). A hydraulic cylinder (19) is installed inside the support seat (18). The working end of the hydraulic cylinder (19) slides into the rectangular groove (16) and is fixedly installed on one side of the movable block (17). A cylinder (20) is installed on the bottom side of the movable block (17). A welding machine (21) is installed at the end of the working rod of the cylinder (20). The fume hood (5) is fitted on the outside of the welding machine (21).

3. The workpiece welding device according to claim 2, characterized in that: A servo motor (22) is installed on one side of the workbench (1). A bidirectional lead screw (23) is installed at the output end of the servo motor (22). Two upward-opening slide rails (24) are opened inside the top side of the workbench (1). A sliding plate (25) is slidably installed inside the slide rail (24). A threaded hole is opened inside the bottom end of the sliding plate (25). One end of the bidirectional lead screw (23) passes through the threaded hole and is rotatably installed inside the slide rail (24).

4. The workpiece welding device according to claim 3, characterized in that: A rotating shaft (26) is rotatably mounted inside the top of the sliding plate (25). A mounting bracket (27) is mounted on one end of the rotating shaft (26). A telescopic rod (28) is installed through the top side of the mounting bracket (27). A pressure plate (29) is mounted on the working end of the telescopic rod (28).

5. The workpiece welding device according to claim 4, characterized in that: A handle (30) is installed at the other end of the rotating shaft (26). A slide rod (31) is installed at one end of the handle (30). An arc groove (32) is provided inside one side of the sliding plate (25). The arc groove (32) is set at 180 degrees. One end of the slide rod (31) is slidably installed inside the arc groove (32). Two limiting screw holes (33) are symmetrically opened inside the sliding plate (25) on the outside of the rotating shaft (26). A locking screw (34) is rotatably installed at the middle end of the handle (30). One end of the locking screw (34) is movably installed through the limiting screw hole (33).

6. The workpiece welding apparatus according to claim 5, characterized in that: A control panel (35) is installed on one side of the workbench (1), and the control panel (35) is used to control the operation of the electrical components inside the device.

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