Welding wire feeding device

Abstract

The utility model discloses a welding wire feeding device which comprises a device body, a wire feeding shaft is rotationally connected to the inner side of the rear end of the device body through a rotating shaft, a wire feeding disc is detachably and fixedly installed in the middle of the wire feeding shaft, and a supporting cover is fixedly installed on the front side of the lower end of the device body. A first driving motor is fixedly installed in the lower end of the supporting cover in a supporting mode, a first synchronous wheel is fixedly installed on the outer curved surface of a transmission shaft part on the inner side of the first driving motor, the outer end of the first synchronous wheel is in transmission connection with a second synchronous wheel through a synchronous belt, and a transmission shaft column is fixedly installed in the middle of the second synchronous wheel; a conveying wheel used for conveying the welding wires in a transmission mode is fixedly installed at the side end, away from the second synchronous wheel, of the transmission shaft column, supporting pieces are fixedly installed on the two sides of the outer end of the supporting cover, and positioning pipes used for positioning the welding wires are fixedly installed at the upper ends of the supporting pieces in a penetrating mode. According to the welding wire feeding device, the positioning distance of the welding wire can be conveniently adjusted while the welding wire is positioned and fed.

Description

Technical Field

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

[0002] Welding is a manufacturing process and technology that joins metals or other thermoplastic materials such as plastics by heating, high temperature, or high pressure. It utilizes the principles of interatomic bonding and particle diffusion to join adjacent workpieces together. Modern welding uses a variety of energy sources, including gas flames, electric arcs, lasers, electron beams, friction, and ultrasound. During the welding process, filler material can be selected or omitted as needed. The main functions of welding include;

[0003] Connection Function: Welding is primarily used to join metal parts together to form a complete structural component. It can join different types of metal materials, such as steel, aluminum, copper, and titanium alloys, by heating the metals to melt and mix them together, forming a strong joint. Enhanced Strength and Sealing: Welding provides sufficient strength and sealing at the joint. Through precise welding techniques, gaps and cracks between materials can be eliminated, enhancing the overall strength and sealing performance of the connected components. Increased Production Efficiency: Welding technology can significantly improve production efficiency. Compared to other connection techniques, such as bolting or riveting, welding does not require additional accessories or complex processing steps. This helps reduce manufacturing costs and shorten production cycles. Precise Positioning and Shape Control: Through precise welding techniques and auxiliary equipment such as wire feeding devices, precise positioning and shape control of the welding wire and workpiece can be achieved. This helps ensure the quality and stability of the welded joint, meeting the needs of various complex structures.

[0004] However, in practical applications of existing technologies, the wire feeding device plays a crucial role in the welding process, needing to stably and accurately deliver the welding wire to the welding area. However, traditional wire feeding devices often suffer from inaccurate wire positioning, easily leading to wire deviation and tangling during transport, affecting welding quality and efficiency. For example, when welding robots perform welding operations on complex paths, if the welding wire is not precisely positioned, defects such as inconsistent weld width and incomplete penetration may occur. Furthermore, frequent wire jamming necessitates machine shutdowns for adjustments, significantly wasting time and labor costs. Utility Model Content

[0005] The purpose of this utility model is to provide a welding wire feeding device to solve the problem mentioned in the background art that traditional wire feeding devices often have inaccurate welding wire positioning, which can easily lead to the welding wire shifting or tangling during the feeding process, affecting welding quality and efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: It includes a device body, a wire feeding shaft rotatably connected to the inner rear end of the device body via a rotating shaft, a wire feeding disc detachably and fixedly installed in the middle of the wire feeding shaft, a support cover fixedly installed on the front lower end of the device body, a first drive motor fixedly installed inside the lower end of the support cover, a first synchronous pulley fixedly installed on the outer curved surface of the inner transmission shaft portion of the first drive motor, a second synchronous pulley connected to the outer end of the first synchronous pulley via a synchronous belt, a transmission shaft column fixedly installed in the middle of the second synchronous pulley, a conveying wheel for transmitting and conveying welding wire fixedly installed on the side of the transmission shaft column away from the second synchronous pulley, support plates fixedly installed on both sides of the outer end of the support cover, and a positioning tube for positioning the welding wire fixedly installed through the upper end of the support plate.

[0007] The upper end of the support cover is fixedly supported on both sides with swing shaft columns. The outer curved surface of the middle part of the swing shaft column is rotatably connected to an L-shaped swing arm through a rotating shaft. The inner side of the L-shaped swing arm is rotatably connected to a positioning wheel for positioning the welding wire in conjunction with the conveyor wheel through a pin. The upper end of the L-shaped swing arm is rotatably connected to a connecting rod through a pin. The front side of the upper end of the device body is fixedly supported with a limiting straight slide groove. The front end of the limiting straight slide groove is fixedly installed with a second drive motor. The rear drive shaft of the second drive motor is fixedly installed with a transmission screw. The outer curved surfaces of both ends of the transmission screw are threaded with sliders.

[0008] Preferably, a power control cabinet is fixedly installed on the outer wall of the rear end of the device body, and a control panel is fixedly installed on the front end of the device body.

[0009] Preferably, the outer end of the wire feeding disc is wound with welding wire, and the inner drive shaft of the first drive motor is rotatably connected to the inner wall of the support cover via a rotating shaft.

[0010] Preferably, there are two first synchronous pulleys, which are symmetrically distributed sequentially on the outer curved surface of the inner drive shaft of the first drive motor, and the drive shaft column is rotatably connected to the middle of the support cover through a rotating shaft.

[0011] Preferably, there are two support plates, which are symmetrically distributed on both sides of the outer end of the support cover, and the positioning tube and the upper end of the conveying wheel are on the same horizontal line.

[0012] Preferably, there are two swing shafts, which are symmetrically distributed on both sides of the upper end of the support cover, and the upper end of the connecting rod is inclined inward.

[0013] Preferably, the transmission screw is rotatably connected to the middle of the limiting straight slide groove through a rotating shaft, and the outer curved threads at both ends of the transmission screw face opposite directions.

[0014] Preferably, the upper end of the slider is movably connected to the inner wall of the limiting straight slide groove, and the lower end of the slider is rotatably connected to the upper end of the connecting rod via a pin.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] When the welding wire passes through the positioning tube, the positioning wheel and the conveying wheel will feed and position the welding wire. When the positioning wheel and the conveying wheel feed and position the welding wire, the first drive motor is turned on by control. When the first drive motor is turned on, it will drive the conveying wheel to rotate in sequence. When the conveying wheel rotates, it will drive the welding wire passing through the positioning tube to be conveyed outward, thereby realizing the function of facilitating the positioning and feeding of the welding wire.

[0017] This invention also features a second drive motor activated during the outward feeding of the welding wire. When the second drive motor is activated, it drives the transmission screw to rotate. The threads on the outer curved surfaces of the two ends of the transmission screw face opposite directions. This rotation of the transmission screw, due to the force generated by the threaded connection, causes the slider to move synchronously outward or inward along the inner wall of the limiting straight groove. As the slider moves synchronously outward or inward, it drives the upper end of the L-shaped swing arm to swing synchronously outward or inward via the connecting rod. This swinging motion of the L-shaped swing arm drives the positioning wheel to swing synchronously upward or downward. When the positioning wheel swings synchronously upward or downward, it adjusts the positioning distance of the welding wire, thus achieving both wire positioning and feeding while facilitating adjustment of the positioning distance. This prevents the positioning wheel from being too close or too far from the welding wire, which could cause the welding wire to deviate or become entangled during feeding. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a welding wire feeding device according to the present invention. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the overall structure of a welding wire feeding device according to the present invention. Figure 2 ;

[0020] Figure 3 This is a schematic diagram of the overall structure of a welding wire feeding device according to the present invention. Figure 3 .

[0021] In the diagram: 1. Main body of the device; 2. Power control cabinet; 3. Control panel; 4. Slider; 5. Wire feeding shaft; 6. Wire feeding reel; 7. Support cover; 8. First drive motor; 9. First synchronous pulley; 10. Second synchronous pulley; 11. Transmission shaft column; 12. Conveying wheel; 13. Support plate; 14. Positioning tube; 15. Swing shaft column; 16. L-shaped swing arm; 17. Positioning wheel; 18. Connecting rod; 19. Limiting straight slide groove; 20. Second drive motor; 21. Transmission screw. 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] Please see Figure 1-3 This utility model provides a technical solution for a welding wire feeding device: it includes a device body 1, a power control cabinet 2 is fixedly installed on the outer wall of the rear end of the device body 1, and a control panel 3 is fixedly installed on the front end of the device body 1, so that the control panel 3 can be used in conjunction with the power control cabinet 2 for control operation.

[0024] A wire feeding shaft 5 is rotatably connected to the inner rear end of the main body 1 via a rotating shaft. A wire feeding disc 6 is detachably and fixedly installed in the middle of the wire feeding shaft 5, and welding wire is wound around the outer end of the wire feeding disc 6, so that the wire feeding shaft 5 provides rotational support for the wire feeding disc 6. A support cover 7 is fixedly installed on the front lower end of the main body 1. A first drive motor 8 is fixedly installed inside the lower end of the support cover 7, and the inner transmission shaft of the first drive motor 8 is rotatably connected to the inner wall of the support cover 7 via a rotating shaft. Two first synchronous pulleys 9 are fixedly installed on the outer curved surface of the inner transmission shaft of the first drive motor 8, and they are arranged sequentially on the outer curved surface of the inner transmission shaft of the first drive motor 8. The first synchronous pulley 9 is symmetrically distributed and connected to the second synchronous pulley 10 via a synchronous belt at its outer end. A drive shaft column 11 is fixedly installed in the middle of the second synchronous pulley 10 and is rotatably connected to the middle of the support cover 7 via a rotating shaft. A conveyor wheel 12 for transmitting and conveying welding wire is fixedly installed on the side of the drive shaft column 11 away from the second synchronous pulley 10. Support plates 13 are fixedly installed on both sides of the outer end of the support cover 7. There are two support plates 13, which are symmetrically distributed on both sides of the outer end of the support cover 7. A positioning tube 14 for positioning welding wire is fixedly installed through the upper end of the support plate 13 and the upper end of the positioning tube 14 is on the same horizontal line as the upper end of the conveyor wheel 12.

[0025] Two swing shaft columns 15 are fixedly installed on both sides of the upper end of the support cover 7, symmetrically distributed on both sides of the upper end of the support cover 7. An L-shaped swing arm 16 is rotatably connected to the outer curved surface of the middle of the swing shaft column 15 via a rotating shaft. A positioning wheel 17 for positioning the welding wire in conjunction with the conveyor wheel 12 is rotatably connected to the inner side of the L-shaped swing arm 16 via a pin. A connecting rod 18 is rotatably connected to the upper end of the L-shaped swing arm 16 via a pin, and the upper end of the connecting rod 18 is inclined inwards. A limit straight slide groove 19 is fixedly installed on the front side of the upper end of the device body 1 for limiting... A second drive motor 20 is fixedly installed at the front end of the straight slide groove 19. A transmission screw 21 is fixedly installed on the transmission shaft at the rear end of the second drive motor 20. The transmission screw 21 is rotatably connected to the middle of the limiting straight slide groove 19 through a rotating shaft. The outer curved threads at both ends of the transmission screw 21 face opposite directions. The outer curved threads at both ends of the transmission screw 21 are connected to sliders 4. The upper end of the sliders 4 is movably connected to the inner wall of the limiting straight slide groove 19, so that the sliders 4 can be linearly moved and limited by the limiting straight slide groove 19. The lower end of the sliders 4 is rotatably connected to the upper end of the connecting rod 18 through a pin.

[0026] Working principle: In use, this utility model sequentially feeds the welding wire wound around the outer end of the wire feeding disc 6 through the positioning tube 14. When the welding wire passes through the positioning tube 14, the positioning wheel 17 and the conveying wheel 12 will feed and position the welding wire. When the positioning wheel 17 and the conveying wheel 12 feed and position the welding wire, the first drive motor 8 is turned on by control. When the first drive motor 8 is turned on, it will drive the first synchronous wheel 9 to rotate. When the first synchronous wheel 9 rotates, it will drive the second synchronous wheel 10 to rotate through the synchronous belt. When the second synchronous wheel 10 rotates, it will drive the transmission shaft column 11 to rotate. When the transmission shaft column 11 rotates, it will drive the conveying wheel 12 to rotate. When the conveying wheel 12 rotates, it will drive the welding wire passing through the positioning tube 14 to be conveyed outward, thereby realizing the function of facilitating the positioning and feeding of the welding wire.

[0027] Simultaneously, when the welding wire is fed outward, the second drive motor 20 is activated. When the second drive motor 20 is activated, it drives the transmission screw 21 to rotate. The outer curved threads at both ends of the transmission screw 21 face opposite directions. When the transmission screw 21 rotates, the force generated by the threaded connection drives the slider 4 to move synchronously outward or inward along the inner wall of the limiting straight slide groove 19. When the slider 4 moves synchronously outward or inward, it drives the upper end of the L-shaped swing arm 16 to swing synchronously outward or inward through the connecting rod 18. When the upper end of the L-shaped swing arm 16 swings synchronously outward or inward, it drives the positioning wheel 17 to swing synchronously upward or downward. When the positioning wheel 17 swings synchronously upward or downward, it adjusts the positioning distance of the welding wire upward or downward. This achieves the positioning and feeding of the welding wire while facilitating the adjustment of the positioning distance of the welding wire, avoiding the positioning distance of the positioning wheel 17 from being too close or too far from the welding wire, which could cause the welding wire to deviate or become entangled during the feeding process.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wire feeder, comprising: Including device body (1), the device body (1) rear end inside is rotatably connected with the wire feeding shaft (5) through the rotating shaft, the wire feeding shaft (5) middle part is detachably fixedly installed with the wire feeding disc (6), the device body (1) lower end front side is fixedly installed with the support cover (7), the support cover (7) lower end inside is fixedly installed with the first drive motor (8), the first drive motor (8) inside transmission shaft portion outer curved surface is fixedly installed with the first synchronous wheel (9), the first synchronous wheel (9) outer end is drivenly connected with the second synchronous wheel (10) through the synchronous belt, the second synchronous wheel (10) middle part is fixedly installed with the transmission shaft column (11), the transmission shaft column (11) is fixedly installed with the conveying wheel (12) for the same to the welding wire transmission on the side end away from the second synchronous wheel (10), the support cover (7) outer end both sides are fixedly installed with the support piece (13), the support piece (13) upper end is fixedly installed with the positioning tube (14) for the welding wire positioning and is penetrated, the support cover (7) upper end both sides are fixedly installed with the swing shaft column (15), the swing shaft column (15) middle part outer curved surface is rotatably connected with the L-shaped swing arm (16) through the rotating shaft, the L-shaped swing arm (16) inside is rotatably connected with the positioning wheel (17) for the welding wire positioning and is matched with the conveying wheel (12), the L-shaped swing arm (16) upper end is rotatably connected with the connecting rod (18) through the pin shaft, the device body (1) upper end front side is fixedly installed with the limiting straight sliding groove (19), the limiting straight sliding groove (19) front end is fixedly installed with the second drive motor (20), the second drive motor (20) rear end transmission shaft portion is fixedly installed with the transmission screw rod (21), the transmission screw rod (21) both ends outer curved surface is threadedly connected with the sliding block (4). The device body (1) rear end outside wall is fixedly installed with the power control cabinet (2), and the device body (1) front end is fixedly installed with the control panel (3).

2. A welding wire feeder as defined in claim 1, wherein: The wire feeding disc (6) outer end is woundly connected with the welding wire, and the first drive motor (8) inside transmission shaft portion is rotatably connected with the support cover (7) inside wall through the rotating shaft.

3. A welding wire feeder as defined in claim 2, wherein: The first synchronous wheel (9) is two, and is distributed symmetrically in sequence with the first drive motor (8) inside transmission shaft portion outer curved surface, and the transmission shaft column (11) is rotatably connected in the middle part of the support cover (7) through the rotating shaft.

4. A welding wire feeder as defined in claim 3, wherein: The support piece (13) is two, and is distributed symmetrically with the support cover (7) outer end both sides, and the positioning tube (14) and the conveying wheel (12) upper end are on the same horizontal line.

5. A welding wire feeder as defined in claim 4, wherein: The swing shaft column (15) is two, and is distributed symmetrically with the support cover (7) upper end both sides, and the connecting rod (18) upper end is inclined inward.

6. A welding wire feeder as defined in claim 5, wherein: The transmission screw rod (21) is rotatably connected in the middle part of the limiting straight sliding groove (19) through the rotating shaft, and the transmission screw rod (21) both ends outer curved surface is threadedly connected in opposite directions.

7. A welding wire feeder as defined in claim 6, wherein: The sliding block (4) upper end is movably connected with the limiting straight sliding groove (19) inner wall, and the sliding block (4) lower end is rotatably connected with the connecting rod (18) upper end through the pin shaft.

8. A welding wire feeder as defined in claim 7, wherein: ​

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