Welding tool capable of improving machining precision

Abstract

The utility model relates to the technical field of sheet metal machining and welding, and discloses a welding tool for improving machining precision, which comprises a welding platform, a positioning plate is arranged at the upper part of the welding platform, pin shafts are arranged at four corners in the positioning plate, and a workpiece is welded at the upper part of the positioning plate. A laser welding machine robot is fixedly installed on the right side of the rear portion of the welding platform, a fixing base is fixedly installed on the left portion of the laser welding machine robot, a cooling box is fixedly installed on the upper portion of the interior of the fixing base, a water pump fixedly communicates with the right portion of the cooling box, and a conveying pipe fixedly communicates with the right portion of the water pump. According to the welding device, the draught fan is started, heat and smell generated in the welding process are sucked in through the air suction cover, welding parts are helped to be rapidly cooled, hot air and welding gas enter the filter box through the air suction pipe, are purified through the filter net and the activated carbon net and are finally discharged into the water tank through the connecting pipe, and heat waste is avoided.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal processing and welding technology, and in particular to a welding fixture for improving processing accuracy. Background Technology

[0002] In sheet metal processing, some customers require very high dimensional accuracy. Relying solely on manual visual welding positioning is no longer sufficient to meet their accuracy requirements, especially given the complexity of some welded components and the high cost of manual alignment. Therefore, welding positioning fixtures have been widely used in the sheet metal processing field.

[0003] However, existing devices, if disassembled and removed directly after welding without cooling, can easily cause cracks in the weld. Furthermore, the high temperature at the weld joint poses a risk of burns or accidental ignition. Leaving it in to cool naturally wastes considerable time and fails to cool the welding head of the laser welding robot, thus not meeting the needs of operators. Therefore, a welding fixture that improves processing accuracy is provided to address the problems mentioned in the background art. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a welding fixture that improves processing accuracy. It aims to address the problems in the prior art where welding is completed and the fixture is removed without cooling, which can easily affect the weld and cause cracks. Furthermore, the high temperature at the weld joint can easily cause burns or accidental ignition. Leaving it in place for natural cooling wastes a lot of time and cannot cool the welding head of the laser welding robot, thus failing to meet the needs of the operators.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a welding fixture for improving processing accuracy, comprising a welding platform, a positioning plate on the upper part of the welding platform, pins at the four corners of the positioning plate, a workpiece welded on the upper part of the positioning plate, a laser welding robot fixedly mounted on the rear right side of the welding platform, a fixed base fixedly mounted on the left side of the laser welding robot, a cooling box fixedly mounted on the upper part of the fixed base, a water pump fixedly connected to the right side of the cooling box, a delivery pipe fixedly connected to the right side of the water pump, a nozzle fixedly connected to the right side of the delivery pipe, a frame fixedly connected to the lower left side of the welding platform, and a filter adsorption assembly disposed inside the frame, the filter adsorption assembly being used to filter and adsorb the gas generated during workpiece processing.

[0006] Furthermore, the filtration and adsorption assembly includes a filter box, which is fixedly installed on the right side of the frame. A filter screen is provided on the left side inside the filter box, and an activated carbon screen is provided on the right side inside the filter box. A fan is fixedly connected to the left side of the filter box, and a connecting pipe is fixedly connected to the left side of the fan. A water tank is fixedly connected to the left side of the connecting pipe. An air suction pipe is fixedly connected to the right side inside the filter box, and an air suction hood is fixedly connected to the right side of the air suction pipe.

[0007] Furthermore, an inspection door is hinged to the front of the frame.

[0008] Furthermore, an inlet pipe is fixedly connected to the upper left side of the water tank, and an outlet pipe is fixedly connected to the lower right side of the water tank.

[0009] Furthermore, the laser welding robot is rotatably connected to the upper part of the welding platform.

[0010] Furthermore, a controller is fixedly installed on the left side of the mounting base.

[0011] Furthermore, the welding platform has several through holes inside.

[0012] Furthermore, brackets are fixedly connected to the four lower corners of the welding platform.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, the positioning plate with the pin is first fixed together with the welding platform. The workpiece to be welded is placed on the positioning plate according to the drawing. The operator then starts the laser welding robot and welds according to the preset program. During the processing, if the laser head of the laser welding machine overheats, the system will automatically start the water pump to deliver coolant to the nozzle for cooling, thereby extending the service life of the equipment.

[0015] 2. In this invention, by starting the fan, the heat and odors generated during the welding process are drawn in by the suction hood, helping to quickly cool the welded parts. The hot air and welding gases enter the filter box through the suction pipe, are purified by the filter screen and activated carbon screen, and finally discharged into the water tank through the connecting pipe, avoiding heat waste. After welding is completed, the workpiece is removed, and the quality inspector inspects the finished product to ensure product quality. Attached Figure Description

[0016] Figure 1 This is a perspective view of a welding fixture for improving machining accuracy proposed in this utility model;

[0017] Figure 2 This is a side view of a welding fixture for improving machining accuracy proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the frame structure of a welding fixture for improving machining accuracy proposed in this utility model;

[0019] Figure 4 This is a partial structural diagram of a welding fixture for improving machining accuracy proposed in this utility model.

[0020] Legend:

[0021] 1. Welding platform; 2. Positioning plate; 3. Pin; 4. Workpiece; 5. Frame; 6. Fan; 7. Suction pipe; 8. Filter box; 9. Filter screen; 10. Activated carbon screen; 11. Water tank; 12. Inlet pipe; 13. Outlet pipe; 14. Connecting pipe; 15. Inspection door; 16. Laser welding robot; 17. Suction hood; 18. Cooling box; 19. Water pump; 20. Delivery pipe; 21. Nozzle; 22. Bracket; 23. Fixing base; 24. Through hole; 25. Controller. 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 protection scope of the present utility model.

[0023] Reference Figure 1 , Figure 2 and Figure 4 The present invention provides an embodiment of a welding fixture for improving processing accuracy, comprising a welding platform 1, a positioning plate 2 on the upper part of the welding platform 1, pins 3 at the four corners of the positioning plate 2, a workpiece 4 welded on the upper part of the positioning plate 2, a laser welding robot 16 fixedly installed on the rear right side of the welding platform 1, a fixed base 23 fixedly installed on the left side of the laser welding robot 16, a cooling box 18 fixedly installed on the upper part of the fixed base 23, a water pump 19 fixedly connected to the right side of the cooling box 18, a conveying pipe 20 fixedly connected to the right side of the water pump 19, a nozzle 21 fixedly connected to the right side of the conveying pipe 20, and a frame 5 fixedly connected to the lower left side of the welding platform 1. A filter adsorption assembly is provided inside the frame 5, which is used to filter and adsorb the gas generated during the processing of the workpiece 4.

[0024] The positioning plate 2 with pin 3 and the welding platform 1 are assembled and fixed together. Then, the workpiece 4 to be welded is placed on the positioning plate 2. The operator places the parts to be welded together according to the drawings. Finally, the laser welding robot 16 is turned on to weld according to the programmed procedure. When the laser head of the laser welding robot 16 overheats during processing, the water pump 19 is started. The water pump 19 causes the cooling tank 18 to enter the conveying pipe 20 and spray it out through the nozzle 21 to cool the laser head and extend the service life of the device.

[0025] Reference Figure 1 , Figure 2 and Figure 3 The filtration and adsorption assembly includes a filter box 8, which is fixedly installed on the right side of the frame 5. A filter screen 9 is provided on the left side inside the filter box 8, and an activated carbon screen 10 is provided on the right side inside the filter box 8. A fan 6 is fixedly connected to the left side of the filter box 8, and a connecting pipe 14 is fixedly connected to the left side of the fan 6. A water tank 11 is fixedly connected to the left side of the connecting pipe 14. A suction pipe 7 is fixedly connected to the right side of the filter box 8, and a suction hood 17 is fixedly connected to the right side of the suction pipe 7.

[0026] By starting the fan 6, the fan 6 draws in some of the heat generated during welding through the suction hood 17, and at the same time draws in the welding odor, so that the welded parts gradually cool down. The hot air and welding odor enter the inner cavity of the filter box 8 through the suction pipe 7, and after being filtered by the filter screen 9 and activated carbon screen 10, they are discharged into the water tank 11 through the connecting pipe 14. The hot air is mixed with the water to avoid heat waste. After welding, the workpiece 4 is removed, and the welding operation of one product is completed. Then the quality inspector inspects the welded product.

[0027] Reference Figure 1 , Figure 3 and Figure 4 The front of the frame 5 is hinged with an inspection door 15. The upper left side of the water tank 11 is fixedly connected to an inlet pipe 12, and the lower right side of the water tank 11 is fixedly connected to an outlet pipe 13. The laser welding robot 16 is rotatably connected to the upper part of the welding platform 1. The left side of the fixed base 23 is fixedly installed with a controller 25. Several through holes 24 are opened inside the welding platform 1. The four corners of the lower part of the welding platform 1 are fixedly connected with brackets 22.

[0028] The inspection door 15 facilitates the maintenance of components inside the frame 5. The water tank 11 is filled with water through the water inlet pipe 12, and the water outlet pipe 13 facilitates water replacement. The laser welding robot 16 rotates on the upper part of the welding platform 1 to process the workpiece 4. The controller 25 facilitates the operation of the laser welding robot 16 and the fan 6. The through hole 24 allows for different layouts and configurations as needed, making the workbench adaptable to various work tasks and improving its flexibility and versatility. The bracket 22 supports the welding platform 1.

[0029] Working principle: When using this device, the positioning plate 2 with pin 3 and the welding platform 1 are assembled and fixed together. Then, the workpiece 4 to be welded is placed on the positioning plate 2. The operator places the parts to be welded together according to the drawings. Finally, the laser welding robot 16 is turned on to perform welding according to the programmed procedure. Water is added to the water tank 11 through the water inlet pipe 12 by opening the maintenance door 15. During welding, the fan 6 is started by the controller 25. The fan 6 draws in some of the heat generated during welding through the suction hood 17, and at the same time, it draws in the fumes generated during welding, so that the welded parts are gradually cooled and oxidized. The temperature gradually decreases and the hot air and welding fumes enter the inner cavity of the filter box 8 through the suction pipe 7. After being filtered by the filter screen 9 and activated carbon screen 10, the hot air is discharged into the water tank 11 through the connecting pipe 14. The hot air is mixed with the water to avoid heat waste. After the welding is completed, the workpiece 4 is removed, and the welding operation of one product is completed. Then the quality inspector inspects the welded product. When the laser head of the laser welding robot 16 overheats during processing, the water pump 19 is started. The water pump 19 causes the cooling box 18 to enter the delivery pipe 20 and spray out through the nozzle 21 to cool the laser head.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A welding fixture for improving machining accuracy, comprising a welding platform (1), characterized in that: The upper part of the welding platform (1) is provided with a positioning plate (2), and the four corners of the positioning plate (2) are provided with pins (3). The upper part of the positioning plate (2) is welded with a workpiece (4). The right rear part of the welding platform (1) is fixedly installed with a laser welding robot (16). The left side of the laser welding robot (16) is fixedly installed with a fixed seat (23). The upper part of the fixed seat (23) is fixedly installed with a cooling box (18). The right side of the cooling box (18) is fixedly connected with a water pump (19). The right side of the water pump (19) is fixedly connected with a conveying pipe (20). The right side of the conveying pipe (20) is fixedly connected with a nozzle (21). The lower left side of the welding platform (1) is fixedly connected with a frame (5). The inside of the frame (5) is provided with a filter adsorption assembly. The filter adsorption assembly is used to filter and adsorb the gas generated during the processing of the workpiece (4).

2. The welding fixture for improving machining accuracy according to claim 1, characterized in that: The filtration and adsorption assembly includes a filter box (8), which is fixedly installed on the right side of the frame (5). A filter screen (9) is provided on the left side inside the filter box (8), and an activated carbon screen (10) is provided on the right side inside the filter box (8). A fan (6) is fixedly connected to the left side of the filter box (8), and a connecting pipe (14) is fixedly connected to the left side of the fan (6). A water tank (11) is fixedly connected to the left side of the connecting pipe (14). A suction pipe (7) is fixedly connected to the right side of the filter box (8), and a suction hood (17) is fixedly connected to the right side of the suction pipe (7).

3. The welding fixture for improving machining accuracy according to claim 2, characterized in that: The front of the frame (5) is hinged with an inspection door (15).

4. The welding fixture for improving machining accuracy according to claim 2, characterized in that: The upper left side of the water tank (11) is fixedly connected to an inlet pipe (12), and the lower right side of the water tank (11) is fixedly connected to an outlet pipe (13).

5. The welding fixture for improving machining accuracy according to claim 1, characterized in that: The laser welding robot (16) is rotatably connected to the upper part of the welding platform (1).

6. The welding fixture for improving machining accuracy according to claim 1, characterized in that: The controller (25) is fixedly installed on the left side of the mounting base (23).

7. The welding fixture for improving machining accuracy according to claim 1, characterized in that: The welding platform (1) has several through holes (24) inside.

8. The welding fixture for improving machining accuracy according to claim 1, characterized in that: The welding platform (1) is fixedly connected to four brackets (22) at its lower corners.

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