Wire feeder for a welding machine

Abstract

The utility model relates to the field of spare part spraying technology discloses a welding machine wire feeding device, including the case, the case bottom fixedly connected with the bottom column, the case inside is provided with the welding wire reel, the case inside fixedly connected with the base, the base top is provided with the lifting mechanism, the base top is provided with the cleaning mechanism, the lifting mechanism includes the sliding column and the lifting plate, the sliding column bottom fixedly connected in the base top, the lifting plate sliding connection is in the sliding column side wall, the sliding column top fixedly connected with the connecting plate, the connecting plate inside screw thread connection has the screw rod, the screw rod bottom end rotatable connection has the fixed block, the fixed block bottom fixedly connected in the base top. In the utility model, when replacing the welding wire of different diameters, the position and pressure of the wire feeding wheel can be manually adjusted, the gap between the wire feeding wheels is adapted to the welding wire diameter, so as to adapt to different welding process requirements.

Description

Technical Field

[0001] This utility model relates to the field of welding machine technology, and in particular to a welding machine wire feeding device. Background Technology

[0002] Welding machines, as essential equipment for metal joining in modern industrial production, use the heat generated by electric current to locally melt the welding material and the base material, thereby achieving a strong connection. In many welding processes, such as common gas-shielded welding and submerged arc welding, wire feeding is a crucial step. The stability and speed accuracy of wire feeding directly affect the quality, formation, and welding efficiency of the weld. To ensure stable and precise wire feeding during welding, wire feeding devices for welding machines have been developed and manufactured. These devices integrate technologies from multiple fields, including mechanical transmission and electrical control, aiming to provide welding machines with continuous, stable, and process-compliant wire feeding power and speed adjustment functions, thus helping to improve welding quality and production efficiency.

[0003] Currently, various types of wire feeding devices for welding machines exist on the market. Some wire feeding devices adopt a roller-type wire feeding structure, which uses one or more pairs of rollers to press the welding wire and relies on the rotational friction of the rollers to drive the welding wire forward. This structure is simple and low-cost, and is widely used in ordinary manual welding and semi-automatic welding scenarios, and can adapt to welding wires of various diameters. Other wire feeding devices use gear transmission, utilizing meshing gears to precisely control the amount of welding wire fed, resulting in high wire feeding accuracy. This is suitable for automated welding operations with stringent weld quality requirements, such as welding automotive parts. However, these devices require the installation of corresponding wire feeding rollers according to the selected welding wire diameter, and cannot achieve rapid clamping of welding wires of different diameters. Therefore, a welding machine wire feeding device is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a welding machine wire feeding device, which aims to improve the problem that the prior art cannot quickly clamp welding wires of different diameters.

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

[0006] A welding machine wire feeding device includes a chassis, a base column fixedly connected to the bottom of the chassis, a welding wire spool disposed inside the chassis, a base fixedly connected inside the chassis, a lifting mechanism disposed on the top of the base, and a cleaning mechanism disposed on the top of the base; the lifting mechanism includes a sliding column and a lifting plate, the bottom of the sliding column fixedly connected to the top of the base, the lifting plate slidably connected to the side wall of the sliding column, a connecting plate fixedly connected to the top of the sliding column, a screw threadedly connected inside the connecting plate, a fixing block rotatably connected to the bottom end of the screw, the bottom of the fixing block fixedly connected to the top of the base, a through block threadedly connected to the side wall of the screw, the through block fixedly connected inside the lifting plate, a base plate fixedly connected to the outer wall of both the lifting plate and the fixing block, and a wire feeding wheel rotatably connected to the side wall of each base plate.

[0007] As a further description of the above technical solution:

[0008] The cleaning mechanism includes a lower clamp and an upper clamp. A placement block is fixedly connected to the top of the base, and a fixing plate is fixedly connected inside the lifting plate. The lower clamp is located on the top of the placement block, and the upper clamp is located at the bottom of the fixing plate.

[0009] As a further description of the above technical solution:

[0010] Both the fixing plate and the placement block have sliding grooves inside. Sliding blocks are fixedly connected to the opposite side of the upper clamp and the lower clamp, and the sliding blocks are slidably connected inside the sliding grooves.

[0011] As a further description of the above technical solution:

[0012] Wiping cotton is provided on the opposite side of both the lower clamp and the upper clamp.

[0013] As a further description of the above technical solution:

[0014] The cleaning mechanism is located on both sides of the wire feeding wheel.

[0015] As a further description of the above technical solution:

[0016] The chassis is fixedly connected to a partition, and a conduit for cable routing is installed inside the partition.

[0017] As a further description of the above technical solution:

[0018] A turntable is fixedly connected to the top of the screw.

[0019] This utility model has the following beneficial effects:

[0020] In this invention, rotating the turntable causes the screw to drive the lifting plate, which in turn causes the wire feeding wheels to quickly engage and clamp the welding wire. When changing to welding wires of different diameters, the position and pressure of the wire feeding wheels can be manually adjusted to ensure that the gap between the wire feeding wheels matches the diameter of the welding wire. This ensures that the welding wire is effectively clamped without deforming due to excessive pressure or slipping due to insufficient pressure, thus adapting to different welding process requirements. This invention solves the problem that general wire feeding devices cannot quickly clamp welding wires of different diameters and require the replacement of wire feeding wheels, thereby improving the versatility and flexibility of the wire feeding device.

[0021] In this invention, the upper and lower clamps hold the welding wire, allowing the wiping cotton to clean it. This cleans the welding wire, removing impurities and oil from its surface, ensuring the quality of the welding wire, thereby improving welding quality and reducing welding defects. It solves the problem of poor welding results caused by wear and dirt on the wire feeding wheel of a general wire feeding device due to impurities on the surface of the welding wire, and improves the stability of the equipment. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of a welding machine wire feeding device proposed in this utility model;

[0023] Figure 2 This is a schematic diagram of the lifting mechanism of a welding machine wire feeding device proposed in this utility model;

[0024] Figure 3 This is a schematic diagram of the cleaning mechanism of a welding machine wire feeding device proposed in this utility model.

[0025] Legend:

[0026] 1. Chassis; 2. Base column; 3. Welding wire spool; 4. Partition plate; 5. Base; 6. Placement block; 7. Cable guide pipe; 8. Sliding column; 9. Connecting plate; 10. Turntable; 11. Screw; 12. Lifting plate; 13. Base plate; 14. Wire feed wheel; 15. Fixing block; 16. Passing block; 17. Sliding groove; 18. Sliding block; 19. Lower clamp; 20. Wiping cotton; 21. Upper clamp; 22. Fixing plate. Detailed Implementation

[0027] 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.

[0028] Reference Figures 1-2This utility model provides an embodiment of a welding machine wire feeding device, including a housing 1, a base column 2 fixedly connected to the bottom of the housing 1, a welding wire spool 3 disposed inside the housing 1, a base 5 fixedly connected inside the housing 1, a lifting mechanism disposed on the top of the base 5, and a cleaning mechanism disposed on the top of the base 5; the lifting mechanism includes a sliding column 8 and a lifting plate 12, the bottom of the sliding column 8 being fixedly connected to the top of the base 5, the lifting plate 12 being slidably connected to the side wall of the sliding column 8, the sliding column 8 providing a stable guide for the sliding of the lifting plate 12, ensuring that the lifting plate 12 can move smoothly along the vertical direction, a connecting plate 9 fixedly connected to the top of the sliding column 8, a screw 11 threadedly connected inside the connecting plate 9, the connecting plate 9 providing a support point for the installation of the screw 11, ensuring the stability of the screw 11 during rotation, and a fixing block 15 rotatably connected to the bottom end of the screw 11. The screw 11 is fixedly connected to the top of the base 5. A through block 16 is threadedly connected to the side wall of the screw 11. Through the threaded engagement between the screw 11 and the connecting plate 9, the rotational motion of the screw 11 is converted into the linear motion of the lifting plate 12. The through block 16 is fixedly connected inside the lifting plate 12. The lifting plate 12 and the outer wall of the fixed block 15 are both fixedly connected to the base plate 13. The side wall of the base plate 13 is rotatably connected to the wire feeding wheel 14. The base plate 13 provides the mounting support for the wire feeding wheel 14, enabling the wire feeding wheel 14 to rotate stably and realize the feeding of welding wire. A partition 4 is fixedly connected inside the housing 1. A through pipe 7 is set inside the partition 4. The through pipe 7 is used to feed welding wire. A turntable 10 is fixedly connected to the top of the screw 11. The turntable 10 allows the operator to manually rotate the screw 11, thereby realizing the adjustment of the height of the wire feeding wheel 14. The operation is simple and convenient, improving the efficiency of adjusting the height of the wire feeding wheel 14.

[0029] Reference Figures 1-3The cleaning mechanism includes a lower clamp 19 and an upper clamp 21. The lower clamp 19 and the upper clamp 21 cooperate with each other to clamp and clean the welding wire from both above and below. A placement block 6 is fixedly connected to the top of the base 5, providing a stable mounting platform for the lower clamp 19 and ensuring consistent cleaning results. A fixing plate 22 is fixedly connected inside the lifting plate 12, providing a mounting base for the upper clamp 21. As the lifting plate 12 rises and falls, the fixing plate 22 and the upper clamp 21 can adjust their positions accordingly, allowing the cleaning mechanism to adapt to welding wires at different heights and improving its versatility. The lower clamp 19 is located on top of the placement block 6, and the upper clamp 21 is located at the bottom of the fixing plate 22. Both plate 22 and placement block 6 have sliding grooves 17 inside. Sliding blocks 18 are fixedly connected to the opposite sides of upper clamp 21 and lower clamp 19. The sliding blocks 18 are slidably connected inside the sliding grooves 17 to ensure that upper clamp 21 and lower clamp 19 can slide smoothly in the sliding grooves 17 and can be removed for cleaning. Wiping cotton 20 is provided on the opposite side of lower clamp 19 and upper clamp 21. The wiping cotton 20 is in direct contact with the welding wire and can effectively remove impurities, oil stains and other contaminants from the surface of the welding wire, improve the cleanliness of the welding wire, thereby improving the welding quality and reducing the generation of welding defects. The cleaning mechanism is set on both sides of the wire feeding wheel 14 to ensure that the welding wire entering the welding area is always kept clean, thereby improving the stability and quality of welding.

[0030] Working principle: First, the welding wire spool 3 is fixed on the housing 1. Then, the welding wire is introduced through the guide pipe 7, passes between the upper clamp 21 and the lower clamp 19, then passes through the upper and lower rows of wire feeding rollers 14, and finally exits through the guide pipe 7 at the outlet of the housing 1. At this time, the turntable 10 is rotated, which drives the screw 11 to rotate. When the screw 11 rotates, it drives the guide block 16 to move downward. The guide block 16 drives the lifting plate 12 to move. The lifting plate 12 moves downward along the sliding column 8. The lifting plate 12 drives the base plate 13 to move downward until the wire feeding roller 14 on the base plate 13 is in contact with the fixed block 15. The wire feeding wheel 14 clamps the welding wire. At this time, the fixed plate 22 on the lifting plate 12 will push the upper clamp 21 to move downward. The upper clamp 21 pushes the wiping cotton 20 to move downward until it comes into contact with the wiping cotton 20 on the lower clamp 19 and clamps the welding wire together. Then the machine body is started to feed the welding wire. After a long period of work is completed, the turntable 10 can be reversed to make the lifting plate 12 move upward along the sliding column 8 and the sliding plate 16. At this time, the upper clamp 21 can be removed from the fixed plate 22 through the sliding groove 17, and the lower clamp 19 can be removed from the placement block 6. Then it can be replaced and cleaned.

[0031] 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 wire feeding device for a welding machine, comprising a chassis (1), characterized in that: The bottom of the chassis (1) is fixedly connected to a bottom column (2), the inside of the chassis (1) is provided with a welding wire spool (3), the inside of the chassis (1) is fixedly connected to a base (5), the top of the base (5) is provided with a lifting mechanism, and the top of the base (5) is provided with a cleaning mechanism. The lifting mechanism includes a sliding column (8) and a lifting plate (12). The bottom of the sliding column (8) is fixedly connected to the inside of the base (5). The inner wall of the lifting plate (12) is slidably connected to the side wall of the sliding column (8). A connecting plate (9) is fixedly connected to the top of the sliding column (8). A screw (11) is threadedly connected inside the connecting plate (9). A fixing block (15) is rotatably connected to the bottom end of the screw (11). The bottom of the fixing block (15) is fixedly connected to the top of the base (5). A through block (16) is threadedly connected to the side wall of the screw (11). The through block (16) is fixedly connected to the upper surface of the lifting plate (12). A base plate (13) is fixedly connected to the outer wall of both the lifting plate (12) and the fixing block (15). A wire feeding wheel (14) is rotatably connected to the side wall of the base plate (13).

2. The welding machine wire feeding device according to claim 1, characterized in that: The cleaning mechanism includes a lower clamp (19) and an upper clamp (21). A placement block (6) is fixedly connected to the top of the base (5). A fixing plate (22) is fixedly connected inside the lifting plate (12). The lower clamp (19) is located on the top of the placement block (6), and the upper clamp (21) is located at the bottom of the fixing plate (22).

3. The welding machine wire feeding device according to claim 2, characterized in that: The fixed plate (22) and the placement block (6) are both provided with sliding grooves (17). The upper clamp (21) and the lower clamp (19) are both fixedly connected to sliding blocks (18) on opposite sides. The sidewall of the sliding block (18) is slidably connected to the inside of the sliding groove (17).

4. The welding machine wire feeding device according to claim 2, characterized in that: Wiping cotton (20) is provided on the opposite side of the lower clamp (19) and the upper clamp (21).

5. A welding machine wire feeding device according to claim 2, characterized in that: The cleaning mechanism is located on both sides of the wire feeding wheel (14).

6. The wire feeding device for a welding machine according to claim 1, characterized in that: The chassis (1) is fixedly connected to a partition (4), and a conduit (7) is installed inside the partition (4).

7. The welding machine wire feeding device according to claim 1, characterized in that: A turntable (10) is fixedly connected to the top of the screw (11).

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