Gas shielded welding apparatus with bi-directional wire feed mechanism

Abstract

This utility model discloses a gas shielded welding device with a bidirectional wire feeding mechanism, belonging to the field of gas shielded welding. It includes a protective shell and a welding torch body. A gas cylinder is fixedly connected to the top of the protective shell, and a flexible hose is fixedly connected to the top of the gas cylinder. A protective tube is fixedly connected to the top of the welding torch body, and a nozzle is provided on the outside of the protective tube. The other end of the flexible hose is fixedly connected to the inside of the nozzle. A fixing plate is fixedly connected to the inner wall of the top of the protective shell. Two rotating rods are rotatably connected to the bottom of the fixing plate, and a numbered block is rotatably connected to the other end of each rod. Multiple guide frames are fixedly connected to the bottom of the fixing plate. This utility model has a reasonable structural design. Through the cooperation between the connecting rods, rotating rods, and the vertical plate, the user can adjust the height of the rollers. This allows the spacing to be increased to prevent jamming when the welding wire expands, and decreased to prevent slippage when the welding wire contracts. This improves wire feeding stability and facilitates normal use by the user.

Description

Technical Field

[0001] This utility model relates to the field of gas shielded welding, and in particular to gas shielded welding equipment with a bidirectional wire feeding mechanism. Background Technology

[0002] Traditional gas shielded welding technologies such as TIG welding and CO2 welding use unidirectional wire feeding, requiring frequent arc starting and stopping during the welding process. This results in uneven weld surfaces and increased defects in the cladding layer. Although manual and semi-automatic welding can flexibly adjust the wire feeding direction, they are difficult to meet the needs of mass production. Furthermore, manual operation suffers from insufficient precision and poor stability. Bidirectional wire feeding technology, combined with a laser tracking system such as CO2 narrow gap all-position automatic welding equipment, can achieve continuous welding of multidirectional welds. It is particularly suitable for straight reciprocating welds such as long straight weld beads, reducing idle movement and improving flatness.

[0003] In existing gas shielded welding equipment with bidirectional wire feeding mechanisms, some equipment uses rollers to transport the welding wire. However, the installation position of some rollers is fixed. Due to thermal expansion and contraction of the welding wire under different environments, it is difficult to keep the welding wire stable when transporting the wire, thus affecting normal use by the user. Therefore, we propose a gas shielded welding equipment with a bidirectional wire feeding mechanism to solve this problem. Utility Model Content

[0004] The purpose of this invention is to provide a gas shielded welding device with a bidirectional wire feeding mechanism to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A gas shielded welding device with a bidirectional wire feeding mechanism includes: a protective shell and a welding torch body. A gas cylinder is fixedly connected to the top of the protective shell, and a hose is fixedly connected to the top of the gas cylinder. A protective tube is fixedly connected to the top of the welding torch body, and a nozzle is provided on the outside of the protective tube. The other end of the hose is fixedly connected to the inside of the nozzle. A fixed plate is fixedly connected to the inner wall of the top of the protective shell. Two rotating rods are rotatably connected to the bottom of the fixed plate, and two connecting rods are fixedly connected to the outside of each of the two rotating rods. A block number is rotatably connected to the other end of each connecting rod. Multiple guide frames are fixedly connected to the bottom of the fixed plate, and vertical plates are slidably connected to the inside of each of the multiple guide frames. A block number two is fixedly connected to one side of the block number one, and a sliding hole adapted to the block number two is opened on the inside of the vertical plate. The outside of the multiple blocks number two is slidably connected to the inside of the corresponding sliding hole. The same movable shell is fixedly connected to the bottom of each of the multiple vertical plates, and two movable rollers are rotatably connected to the bottom of the movable shell. Multiple fixed rollers are rotatably connected to the inner wall of the bottom of the protective shell.

[0007] Preferably, a servo motor is fixedly connected to the bottom of the fixed plate, and a rotating roller is fixedly connected to the output end of the servo motor. A worm gear is fixedly connected to the outer side of the rotating roller, and two worm wheels mesh with the outer side of the worm gear. The inner sides of the two worm wheels are fixedly connected to the outer side of the corresponding rotating rod.

[0008] Preferably, two rollers are rotatably connected to the inner wall of one side of the protective shell, and two holes No. 1 are opened on the inner wall of the top of the protective shell, and two holes No. 2 are opened on the inner side of the protective shell.

[0009] Preferably, a plurality of limiting blocks are fixedly connected to the inner wall of one side of the protective shell, and two wire feeding tubes are fixedly connected to the top of the protective shell, and the other ends of the two wire feeding tubes are fixedly connected to the inside of the welding torch body, and the other ends of the two wire feeding tubes extend to the inside of the protective tube.

[0010] Preferably, both the movable roller and the fixed roller have friction textures on their outer sides.

[0011] Preferably, the protective shell has two rotating doors rotatably connected to one side.

[0012] In this utility model, the gas shielded welding equipment with bidirectional wire feeding mechanism is constructed by placing a steel plate on a workbench and fixing it. The user can then adjust the speed of the two welding wires inside the device, open the gas cylinder to fill the nozzle with protective gas, and then hold the welding torch body to begin the welding operation. The user can place the welding wire roll on the outside of the roll roller, then pull the welding wire through the second hole, and then use the moving roller and the fixed roller to transport it, so that the welding wire continues to move and passes through the inside of the limiting block, and finally enters the wire feeding tube through the first hole, thereby completing the wire feeding operation.

[0013] In this utility model, the gas shielded welding equipment with bidirectional wire feeding mechanism starts the servo motor when the user needs to adjust the height of the moving rollers. This causes the rollers to start rotating, followed by the worm gear rotating and the turbine rotating. Then the rotating rod continues to rotate, causing the connecting rod to rotate. Immediately afterwards, the first block starts to rotate, and the second block starts to slide inside the vertical plate. At this time, the vertical plate begins to move vertically, which allows the moving shell to drive the moving rollers to move synchronously.

[0014] This utility model has a reasonable structural design. Through the cooperation between the connecting rod, the rotating rod and the vertical plate, the user can adjust the height of the rollers. This allows the spacing to be increased to prevent jamming when the welding wire expands, and the spacing to be decreased to prevent slippage when the welding wire contracts. This improves the stability of wire feeding and makes it easier for the user to use the device normally. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the gas shielded welding equipment with a bidirectional wire feeding mechanism proposed in this utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of the protective shell proposed in this utility model;

[0017] Figure 3 This is a cross-sectional structural diagram of the movable shell proposed in this utility model;

[0018] Figure 4 This is a schematic diagram of the connecting rod structure proposed in this utility model;

[0019] Figure 5 This is a cross-sectional view of the vertical plate proposed in this utility model.

[0020] In the diagram: 1. Protective shell; 2. Welding torch body; 3. Protective tube; 4. Nozzle; 5. Wire feed tube; 6. Gas cylinder; 7. Fixing plate; 8. Moving shell; 9. Moving roller; 10. Fixing roller; 11. Limiting block; 12. Winding roller; 13. Servo motor; 14. Rotating rod; 15. Connecting rod; 16. Block 1; 17. Vertical plate; 18. Block 2. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-5 A gas shielded welding device with a bidirectional wire feeding mechanism includes: a protective shell 1 and a welding torch body 2. A gas cylinder 6 is fixedly connected to the top of the protective shell 1, and a hose is fixedly connected to the top of the gas cylinder 6. A protective tube 3 is fixedly connected to the top of the welding torch body 2, and a nozzle 4 is provided on the outside of the protective tube 3. The other end of the hose is fixedly connected to the inside of the nozzle 4. A fixing plate 7 is fixedly connected to the inner wall of the top of the protective shell 1. Two rotating rods 14 are rotatably connected to the bottom of the fixing plate 7, and two connecting rods 15 are fixedly connected to the outside of each of the two rotating rods 14. The other end of the connecting rods 15... A first block 16 is rotatably connected, and multiple guide frames are fixedly connected to the bottom of the fixed plate 7. Vertical plates 17 are slidably connected to the inner side of each guide frame. A second block 18 is fixedly connected to one side of the first block 16, and sliding holes adapted to the second block 18 are opened on the inner side of the vertical plate 17. Multiple second blocks 18 are slidably connected to the inner side of the corresponding sliding holes on the outer side. The same movable shell 8 is fixedly connected to the bottom of each of the multiple vertical plates 17, and two movable rollers 9 are rotatably connected to the bottom of the movable shell 8. Multiple fixed rollers 10 are rotatably connected to the inner wall of the bottom of the protective shell 1.

[0023] In this embodiment, a servo motor 13 is fixedly connected to the bottom of the fixed plate 7, and a rotating roller is fixedly connected to the output end of the servo motor 13. A worm is fixedly connected to the outside of the rotating roller, and two worm wheels mesh with the outside of the worm. The inner sides of the two worm wheels are fixedly connected to the outside of the corresponding rotating rod 14. Two winding rollers 12 are rotatably connected to the inner wall of one side of the protective shell 1. Two holes No. 1 are opened on the inner wall of the top of the protective shell 1, and two holes No. 2 are opened on the inner side of the protective shell 1. This facilitates the welding wire to come out of the device.

[0024] In this embodiment, a plurality of limiting blocks 11 are fixedly connected to the inner wall of one side of the protective shell 1, and two wire feeding tubes 5 are fixedly connected to the top of the protective shell 1. The other ends of the two wire feeding tubes 5 are fixedly connected to the inner side of the welding torch body 2, and the other ends of the two wire feeding tubes 5 extend to the inner side of the protective tube 3. Friction textures are provided on the outer side of the moving roller 9 and the fixed roller 10. Two rotating doors are rotatably connected to one side of the protective shell 1 to facilitate the user to open the device.

[0025] In this embodiment, during use, the steel plate is fixed on the workbench. The user can then adjust the speed of the two welding wires inside the device, open the gas cylinder 6 to fill the nozzle 4 with protective gas, and then hold the welding gun body 2 to begin welding. The user can place the welding wire coil on the outside of the winding roller 12, and then pull the welding wire through the second hole. The moving roller 9 and the fixed roller 10 are used to transport the wire, allowing it to continue moving and pass through the inside of the limiting block 11. Finally, the wire is fed into the wire feeding tube 5 through the first hole, thus completing the wire feeding operation. When the user needs to adjust the height of the moving roller 9, the servo motor 13 is started, which causes the rotating roller to start rotating. Then the worm gear also starts rotating, causing the turbine to rotate. The rotating rod 14 continues to rotate, causing the connecting rod 15 to rotate. Then the first block 16 starts to rotate, and the second block 18 starts to slide inside the vertical plate 17. At this time, the vertical plate 17 begins to move vertically, which allows the moving shell 8 to drive the moving roller 9 to move synchronously.

[0026] The gas shielded welding equipment with a bidirectional wire feeding mechanism provided by this utility model has been described in detail above. Specific embodiments have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A gas shielded welding device with a bidirectional wire feeding mechanism, characterized in that, include: A protective shell (1) and a welding torch body (2) are provided. A gas cylinder (6) is fixedly connected to the top of the protective shell (1). A hose is fixedly connected to the top of the gas cylinder (6). A protective tube (3) is fixedly connected to the top of the welding torch body (2). A nozzle (4) is provided on the outside of the protective tube (3). The other end of the hose is fixedly connected to the inside of the nozzle (4). A fixing plate (7) is fixedly connected to the inner wall of the top of the protective shell (1). Two rotating rods (14) are rotatably connected to the bottom of the fixing plate (7). Two connecting rods (15) are fixedly connected to the outside of each of the two rotating rods (14). The other end of each connecting rod (15) is rotatably connected to a... Block (16) is fixedly connected to the bottom of the fixed plate (7), and a number of guide frames are fixedly connected to the bottom of the fixed plate (7). A vertical plate (17) is slidably connected to the inner side of the guide frames. Block (16) is fixedly connected to the side of the first block (16), and a sliding hole adapted to the second block (18) is opened on the inner side of the vertical plate (17). The outer sides of the second blocks (18) are slidably connected to the inner side of the corresponding sliding hole. The bottom of the vertical plates (17) is fixedly connected to the same movable shell (8), and two movable rollers (9) are rotatably connected to the bottom of the movable shell (8). A number of fixed rollers (10) are rotatably connected to the inner wall of the bottom of the protective shell (1).

2. The gas shielded welding equipment with a bidirectional wire feeding mechanism according to claim 1, characterized in that, The bottom of the fixed plate (7) is fixedly connected to a servo motor (13), and the output end of the servo motor (13) is fixedly connected to a rotating roller. A worm is fixedly connected to the outside of the rotating roller, and two worm wheels mesh with the outside of the worm. The inner sides of the two worm wheels are fixedly connected to the outside of the corresponding rotating rod (14).

3. The gas shielded welding equipment with a bidirectional wire feeding mechanism according to claim 1, characterized in that, Two rollers (12) are rotatably connected to one side of the inner wall of the protective shell (1), and two holes No. 1 are opened on the top inner wall of the protective shell (1), and two holes No. 2 are opened on the inner side of the protective shell (1).

4. The gas shielded welding equipment with a bidirectional wire feeding mechanism according to claim 1, characterized in that, The inner wall of one side of the protective shell (1) is fixedly connected with multiple limiting blocks (11), and the top of the protective shell (1) is fixedly connected with two wire feeding tubes (5), and the other end of the two wire feeding tubes (5) is fixedly connected to the inside of the welding gun body (2), and the other end of the two wire feeding tubes (5) extends to the inside of the protective tube (3).

5. The gas shielded welding equipment with a bidirectional wire feeding mechanism according to claim 1, characterized in that, Both the movable roller (9) and the fixed roller (10) have friction textures on their outer sides.

6. The gas shielded welding equipment with a bidirectional wire feeding mechanism according to claim 1, characterized in that, The protective shell (1) has two rotating doors rotatably connected to one side.

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