A quick wire changing system for arc welding and laser welding

Abstract

The utility model discloses a kind of arc welding and laser welding quick wire changing system, including the welding wire fixing plate being set on wire feeder fixed plate, welding wire fixing plate upper and lower sides are equipped with welding wire passage respectively, and the front side of being located in two welding wire passages is equipped with wire separating wheel, welding wire separating wheel upper and lower sides are equipped with wire separating pressure wheel respectively, the gap between upper and lower wire separating pressure wheel and wire separating wheel is formed upper and lower wire separating gap respectively;Wire guide cylinder and wire feeding mechanism are equipped in the part located in front of wire separating wheel;Welding wire A sequentially passes through lower welding wire passage, lower wire separating gap, the wire guide passage of wire guide cylinder of wire feeding mechanism from back to front;Welding wire B sequentially passes through upper welding wire passage, upper wire separating gap, wire guide passage, wire feeding mechanism from back to front;By controlling wire separating wheel forward and reverse rotation, different welding wire is realized to be forwarded to convey.This utility model's advantage: the quick, automatic replacement of welding wire is realized, improves the production efficiency of production line, reduces cost.

Description

Technical Field

[0001] This utility model relates to the field of welding equipment technology, and in particular to a rapid wire changing system for arc welding and laser welding. Background Technology

[0002] Arc welding technology is an important component of modern welding technology with wide applications, primarily in the aerospace, automotive, railway, shipbuilding, and military industries. In these sectors, arc welding is widely used in the manufacture and repair of machine tools, vehicle components, generator sets, and ships. In recent years, with increasingly fierce market competition, improving welding production productivity, ensuring product quality, and achieving automation and intelligentization of welding production have become increasingly important for welding manufacturers. Furthermore, the integration of modern high technologies such as artificial intelligence, computer vision, digital information processing, and robotics is driving arc welding technology towards more efficient welding processes, digital control of welding power sources, intelligent control of welding quality, and roboticization of the welding production process.

[0003] Due to the large workload of arc welding on production lines, quickly changing welding wire to ensure line uptime is a significant challenge. In practice, manual wire changing is often used. Operators thread the wire from the wire spool to the robot's three-axis wire feeder, a process that takes approximately 10-15 minutes. For multi-station automated production lines, this 10-15 minute change time at each station significantly reduces the overall line uptime and severely impacts production efficiency.

[0004] To address this, a butt welding machine was developed. This machine connects the welding wires end-to-end in two wire drums, using resistance welding to completely butt weld them together. Subsequently, an automatic grinding device automatically grinds the butt welding point and automatically feeds the wires, ensuring uninterrupted production. However, it still has the following shortcomings: First, the butt joint strength of the two welding wires is insufficient, which leads to the problem of welding wire breakage; Secondly, inadequate grinding at the welding wire joint can cause the weld seam to get stuck inside the wire feeding tube, resulting in increased wire feeding resistance. Furthermore, the high cost of welding machines and special tubular wire consumables restricts their widespread adoption. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a rapid wire changing system for arc welding and laser welding, so as to realize rapid and automatic wire changing, shorten the time for changing consumables, improve the production efficiency of the production line, reduce costs, and ensure smooth wire feeding.

[0006] This utility model is achieved through the following technical solution: A rapid wire changing system for arc welding and laser welding includes a wire fixing plate mounted on a wire feeder fixing plate. Upper and lower wire channels for the wire to pass through are provided on the upper and lower sides of the wire fixing plate. A wire separating wheel is provided on the front side of the two wire channels on the wire fixing plate. Upper and lower wire separating clamping wheels are provided on the upper and lower sides of the wire separating wheel, respectively. The gaps between the upper and lower wire separating clamping wheels and the wire separating wheel form upper and lower wire separating gaps. A wire feeding guide cylinder and a wire feeding mechanism are arranged sequentially from back to front on the wire feeder fixing plate in front of the wire separating wheel. The internal channel of the wire feeding guide cylinder forms a wire feeding guide channel. Welding wire A passes through the lower welding wire channel, the lower wire splitting gap, and the wire feeding guide channel from back to front, and is then fed forward by the wire feeding mechanism. Welding wire B passes through the upper welding wire channel, the upper wire splitting gap, and the wire feeding guide channel in sequence from back to front, and is then fed forward by the wire feeding mechanism; different welding wires are conveyed forward by the forward and reverse rotation of the wire splitting wheel.

[0007] As a preferred embodiment of the above-mentioned rapid wire changing system for arc welding and laser welding, the two wire channels on the upper and lower sides of the wire fixing plate are arranged to gradually approach each other from back to front. The upper and lower sides of the wire fixing plate are respectively provided with first pressing wheels. The two first pressing wheels are respectively rotatably mounted on the wire feeder fixing plate and are used to press the welding wire B and welding wire A into the two wire channels of the wire fixing plate.

[0008] As a preferred embodiment of the above-mentioned rapid wire changing system for arc welding and laser welding, the wire feeding guide channel inside the wire feeding guide cylinder includes cylindrical sections and frustum sections arranged in front and behind, with the front end of the frustum section being a small end and the rear end being a large end.

[0009] As a preferred embodiment of the above-mentioned rapid wire changing system for arc welding and laser welding, the wire feeding mechanism includes two sets of wire feeding assemblies, one at the front and one at the back. Each set of wire feeding assemblies includes a movable clamping wheel and a wire feeding wheel that are distributed vertically and rotate in opposite directions. The gap between the movable clamping wheel and the wire feeding wheel forms the wire feeding gap. The wire feeding wheel is rotatably mounted on the wire feeder fixed plate and its axis is fixed. The movable clamping wheel is rotatably mounted on the clamping plate. The clamping plate is movably mounted on the wire feeder fixed plate. The clamping plate is driven to reciprocate by a drive mechanism to adjust the distance between the movable clamping wheel and the wire feeding wheel, thereby adjusting the wire feeding gap.

[0010] As a preferred embodiment of the above-mentioned rapid wire changing system for arc welding and laser welding, each of the wire separating wheel, each wire separating clamping wheel, each first clamping wheel, movable clamping wheel and wire feeding wheel has an embedding groove for the welding wire to be embedded.

[0011] As a preferred embodiment of the above-mentioned rapid wire changing system for arc welding and laser welding, the cross-sectional shape of the embedded groove and the two wire channels on the upper and lower sides of the wire fixing plate are both arc-shaped.

[0012] This invention has the following advantages over the prior art: This utility model provides a rapid wire changing system for arc welding and laser welding. By setting a wire fixing plate and a wire-distributing wheel that can control forward and reverse rotation, in conjunction with an outer clamping wheel, the automatic replacement of welding wire can be achieved by controlling the forward and reverse rotation of the wire-distributing wheel. The replacement time can be reduced from 10-15 minutes for manual wire replacement to 1 minute, greatly shortening the time for replacing consumables and improving the production line efficiency. At the same time, it solves the problem of high overall costs caused by the need for specially made wire drums in existing wire butt welding machines, reducing the production line investment cost. It also solves the problem of welding wire easily detaching or abnormally jamming after wire butt welding, ensuring smooth wire feeding after replacement, thereby ensuring the normal operation of the welding torch. Attached Figure Description

[0013] Figure 1 This is a perspective view of the present invention.

[0014] Figure 2 This is a plan view of the present invention.

[0015] Numbered in the diagram: 1. Wire feeder fixing plate; 2. Welding wire fixing plate; 3. Upper welding wire channel; 4. Lower welding wire channel; 5. First clamping roller; 6. Wire separating roller; 7. Upper wire separating clamping roller; 8. Lower wire separating clamping roller; 9. Wire feeding guide cylinder; 10. Wire feeding guide channel; 11. Movable clamping roller; 12. Wire feeding roller; 13. Clamping plate; 14. Linear drive mechanism; 15. Driving gear; 16. Driven gear; 17. Embedding groove; 18. Welding wire A; 19. Welding wire B. Detailed Implementation

[0016] The embodiments of this utility model are described in detail below. These embodiments are implemented based on the technical solution of this utility model and provide detailed implementation methods and specific operation processes. However, the protection scope of this utility model is not limited to the following embodiments.

[0017] See Figures 1 to 2 This embodiment discloses a rapid wire changing system for arc welding and laser welding, including a wire fixing plate 2 fixedly mounted on a wire feeder fixing plate 1. The upper and lower sides of the wire fixing plate 2 are respectively provided with an upper wire channel 3 and a lower wire channel 4 for the wire to pass through. The two wire channels on the upper and lower sides of the wire fixing plate 2 are arranged to gradually approach each other from back to front. The upper and lower sides of the wire fixing plate 2 are respectively provided with first pressing wheels 5. The two first pressing wheels 5 are respectively rotatably mounted on the wire feeder fixing plate 1 and are used to press the welding wire B19 and welding wire A18 into the two wire channels of the wire fixing plate 2.

[0018] The wire fixing plate 2 has a wire separating wheel 6 located in front of the two wire channels. The upper and lower sides of the wire separating wheel 6 are respectively provided with an upper wire separating clamping wheel 7 and a lower wire separating clamping wheel 8. The gaps between the upper and lower wire separating clamping wheels 8 and the wire separating wheel 6 form the upper and lower wire separating gaps, respectively. The wire feeder fixing plate 1 has a wire feeding guide cylinder 9 and a wire feeding mechanism arranged from back to front in front of the wire separating wheel 6. The internal channel of the wire feeding guide cylinder 9 forms a wire feeding guide channel 10. The wire feeding guide channel 10 inside the wire feeding guide cylinder 9 includes a cylindrical section and a frustum section arranged front and back. The front end of the frustum section is a small end and the rear end is a large end.

[0019] The wire feeding mechanism includes two sets of wire feeding assemblies, each set comprising a movable clamping wheel 11 and a wire feeding wheel 12, which are vertically distributed and rotate in opposite directions. The gap between the movable clamping wheel 11 and the wire feeding wheel 12 forms a wire feeding gap for the welding wire to pass through. The wire feeding wheel 12 is rotatably mounted on the wire feeder fixed plate 1 with its axis fixed. The movable clamping wheel 11 is rotatably mounted on a clamping plate 13, which is movably mounted on the wire feeder fixed plate 1. A drive mechanism drives the clamping plate 13 to reciprocate, thereby adjusting the distance between the movable clamping wheel 11 and the wire feeding wheel 12, and thus adjusting the wire feeding gap. The drive mechanism is a linear drive mechanism 14, such as a linear motor. The movable clamping wheel 11 is the driving wheel, and the wire feeding wheel 12 is the following wheel. A driving gear 15 is coaxially mounted on the movable clamping wheel 11, and a driven gear 16 that meshes with the driving gear 15 is coaxially mounted on the wire feeding wheel 12. The driving gear 15 is driven to rotate by a drive source, thereby causing the movable clamping wheel 11 and the wire feeding wheel 12 to rotate in opposite directions. Before the welding wire enters the wire feeding gap, the clamping plate 13 can be moved away from the wire feeding wheel 12 by a linear motor to increase the wire feeding gap and facilitate the entry of the welding wire. After the welding wire enters, the clamping plate 13 is moved closer to the wire feeding wheel 12 by a linear motor to reduce the wire feeding gap, so that the movable clamping wheel 11 contacts the welding wire. As the movable clamping wheel 11 and the wire feeding wheel 12 rotate in opposite directions, the welding wire is automatically fed forward under the action of friction.

[0020] Each of the wire-separating roller 6, each wire-separating clamping roller, each first clamping roller 5, the movable clamping roller 11, and the wire-feeding roller 12 has a groove 17 for embedding the welding wire. The cross-sectional shape of the embedding groove 17 and the two welding wire channels on the upper and lower sides of the welding wire fixing plate 2 is arc-shaped.

[0021] Welding wire A18 passes sequentially from back to front through the lower welding wire channel 4, the lower wire splitting gap, and the wire feeding guide channel 10, and is then fed forward by the two sets of wire feeding assemblies of the wire feeding mechanism. Welding wire B19 passes sequentially from back to front through the upper welding wire channel 3, the upper wire splitting gap, and the wire feeding guide channel 10, and is then fed forward by the two sets of wire feeding assemblies of the wire feeding mechanism. The wire splitting wheel 6 is driven to rotate by a motor, and by controlling the forward and reverse rotation of the wire splitting wheel 6, different welding wires can be fed forward.

[0022] Before use, two barrels of welding wire, namely welding wire A18 and welding wire B19, are prepared outside the line. During operation, welding wire A18 passes from back to front through the lower welding wire channel 4, the lower wire splitting gap, and the wire feeding guide channel 10 in sequence. The wire splitting wheel 6 is controlled to rotate forward. Under the action of friction, welding wire A18 is continuously fed forward and is successively fed forward through the two sets of wire feeding components of the wire feeding mechanism. It is then transported to the welding gun through the wire feeding tube for normal welding operation. When welding wire A18 is used up, the wire separating wheel 6 is reversed to retract the remaining welding wire A18 inside the welding torch and wire feeder. At the same time, the spare welding wire B19 passes from back to front through the upper welding wire channel 3, the upper wire separating gap, and the wire feeding guide channel 10. After the remaining welding wire A18 has completely exited the wire feeding guide channel 10, the welding wire B19 is continuously fed forward under the action of the wire separating wheel 6 reversing. The welding wire B19 is fed forward through the two sets of wire feeding components of the wire feeding mechanism and then transported to the welding torch through the wire feeding tube to ensure the normal progress of subsequent welding operations.

[0023] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements 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 rapid wire changing system for arc welding and laser welding, characterized in that: The device includes a welding wire fixing plate mounted on a wire feeder fixing plate. Upper and lower welding wire channels are provided on the upper and lower sides of the welding wire fixing plate for the welding wire to pass through. A wire separating wheel is located in front of the two welding wire channels on the welding wire fixing plate. Upper and lower wire separating clamping wheels are located on the upper and lower sides of the wire separating wheel, respectively. The gaps between the upper and lower wire separating clamping wheels and the wire separating wheel form upper and lower wire separating gaps. A wire feeding guide cylinder and a wire feeding mechanism are sequentially arranged from back to front on the wire feeder fixing plate in front of the wire separating wheel. The internal channel of the wire feeding guide cylinder forms a wire feeding guide channel. Welding wire A passes through the lower welding wire channel, the lower wire splitting gap, and the wire feeding guide channel from back to front, and is then fed forward by the wire feeding mechanism. Welding wire B passes through the upper welding wire channel, the upper wire splitting gap, and the wire feeding guide channel in sequence from back to front, and is then fed forward by the wire feeding mechanism; different welding wires are conveyed forward by the forward and reverse rotation of the wire splitting wheel.

2. The rapid wire changing system for arc welding and laser welding as described in claim 1, characterized in that: The two welding wire channels on the upper and lower sides of the welding wire fixing plate are arranged from back to front and gradually approach each other. The upper and lower sides of the welding wire fixing plate are respectively provided with first pressing wheels. The two first pressing wheels are respectively rotatably mounted on the wire feeder fixing plate and are used to press welding wire B and welding wire A into the two welding wire channels of the welding wire fixing plate.

3. The rapid wire changing system for arc welding and laser welding as described in claim 1, characterized in that: The wire feeding guide channel inside the wire feeding guide cylinder includes cylindrical sections and frustum sections arranged in front and behind, with the front end of the frustum section being a small end and the rear end being a large end.

4. The rapid wire changing system for arc welding and laser welding as described in claim 2, characterized in that: The wire feeding mechanism includes two sets of wire feeding assemblies, each set including a movable pressing wheel and a wire feeding wheel that are distributed vertically and rotate in opposite directions. The gap between the movable pressing wheel and the wire feeding wheel forms the wire feeding gap. The wire feeding wheel is rotatably mounted on the wire feeder fixed plate and its axis is fixed. The movable pressing wheel is rotatably mounted on the pressing plate. The pressing plate is movably mounted on the wire feeder fixed plate. The pressing plate is driven to reciprocate by a drive mechanism to adjust the distance between the movable pressing wheel and the wire feeding wheel, thereby adjusting the wire feeding gap.

5. The rapid wire changing system for arc welding and laser welding as described in claim 4, characterized in that: Each of the wire separating wheel, each wire separating clamping wheel, each first clamping wheel, the movable clamping wheel, and the wire feeding wheel has a groove for embedding the welding wire.

6. The rapid wire changing system for arc welding and laser welding as described in claim 5, characterized in that: The cross-sectional shape of the embedding groove and the two welding wire channels on the upper and lower sides of the welding wire fixing plate are both arc-shaped.

Images