Automatic welding wire preheating device for aluminum alloy pipe

Abstract

This utility model belongs to the field of welding wire preheating technology and discloses a welding wire preheating device for automatic welding of aluminum alloy pipes. It includes a fixed ring with a movable ring at its front end. An electric push rod is circumferentially fixed to one end of the fixed ring near the movable ring. The output end of the electric push rod is connected to an ear plate. An extension frame is circumferentially fixed to the outer side of the fixed ring. This utility model uses multiple connecting rods to deflect inwards, applying a pushing force to the adjusting blocks. At this time, the multiple adjusting blocks and extension rods move closer together, ultimately causing multiple ceramic resistance heating plates to move closer together until the inner side of the ceramic resistance heating plate contacts the outer side of the welding wire, thus limiting the welding wire. Simultaneously, the ceramic resistance heating plates are activated to rapidly heat the surface of the welding wire, completing the limiting and uniform heating process for welding wires of different diameters, improving the practicality of the device.

Description

Technical Field

[0001] This utility model belongs to the field of welding wire preheating technology, specifically a welding wire preheating device for automatic welding of aluminum alloy pipes. Background Technology

[0002] Automatic welding wire for aluminum alloy pipes is a specialized welding material used for welding aluminum alloy pipes. It is widely used in aluminum alloy structure welding in industries such as aerospace, automotive manufacturing, shipbuilding, and construction. Due to the high thermal conductivity and low melting point of aluminum alloys, it is necessary to select a suitable welding wire to ensure the strength, corrosion resistance, and appearance quality of the weld joint. Automatic welding wire for aluminum alloy pipes is typically made of aluminum-magnesium alloys, aluminum-silicon alloys, or other alloy materials, possessing good fluidity and high welding performance, providing stable welding results in automated welding processes. The welding wire needs to be preheated before actual welding to facilitate subsequent welding procedures.

[0003] Conventional preheating devices for welding wire mainly consist of ceramic resistance heating plates, which heat the surface of the welding wire. However, the diameter of the welding wire used for welding varies, and conventional resistance heating plates cannot make sufficient contact with welding wires of different diameters. As a result, welding wires of different diameters cannot be fully heated, affecting their preheating efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a preheating device for welding wire in automatic welding of aluminum alloy pipes, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a preheating device for welding wire in automatic welding of aluminum alloy pipes, comprising a fixed ring, a movable ring at the front end of the fixed ring, an electric push rod fixedly mounted in a circumferential shape at one end of the fixed ring near the movable ring, the output end of the electric push rod being connected to an ear plate, an extension frame fixedly mounted in a circumferential shape on the outer side of the fixed ring, ear plates being mounted on both the left and right sides of the fixed ring, an adjusting guide rail being mounted on the side of the extension frame away from the fixed ring, the adjusting guide rail being perpendicular to the extension frame, a ceramic resistance heating plate being provided on the inner side of the adjusting guide rail, an adjusting component being movably engaged inside the adjusting guide rail, the adjusting component being circumferentially mounted on the front side of the movable ring, and the ceramic resistance heating plate being connected to an external power supply device via a power cord.

[0006] Before preheating the welding wire, the fixing ring needs to be fixed by the ear plate to ensure that the device is in a horizontal position. The power supply of the ceramic resistance heating plate is connected by an external power supply device. At the same time, the free end of the welding wire to be heated needs to be inserted into the position between multiple ceramic resistance heating plates, so that the free end of the welding wire can be led out through the middle of the movable ring and the fixed ring, thus completing the preparation before heating the welding wire.

[0007] As a further technical solution of this utility model, the adjustment component includes a first fixed seat, which is circumferentially mounted on the front of the movable ring, and the end of the first fixed seat away from the movable ring is movably connected to a connecting rod through a rotating shaft.

[0008] As a further technical solution of this utility model, the end of the connecting rod away from the first fixed seat is movably connected to the second fixed seat through a rotating shaft. An adjusting block is fixedly installed on the front side of the second fixed seat. The adjusting block is movably engaged with the adjusting guide rail and is displaced relative to the adjusting guide rail.

[0009] As a further technical solution of this utility model, an extension rod is fixedly installed on the inner side of each adjustment block, and the bottom end of the extension rod passes through the bottom end of the adjustment guide rail and is connected to one end of the outer side of the ceramic resistance heating plate.

[0010] As a further technical solution of this utility model, a synchronization frame is fixedly installed at the end of the adjustment block away from the second fixed seat, and the end of the synchronization frame away from the adjustment block is connected to the other end of the outer side of the ceramic resistance heating plate.

[0011] As a further technical solution of this utility model, the electric push rod is used to control the distance between the fixed ring and the movable ring. When the distance between the fixed ring and the movable ring is at its minimum value, the diameter of the circle formed by the three ceramic resistance heating plates is also at its minimum value.

[0012] By activating the electric push rod and controlling its shortening, the movable ring can move towards the fixed ring, thus reducing the distance between them. The first fixed seat then moves closer to the fixed ring, and multiple connecting rods deflect inwards, applying a thrust to the adjusting blocks. This causes the adjusting blocks and extension rods to move closer together, ultimately bringing multiple ceramic resistance heating plates closer until the inner surface of the ceramic resistance heating plates contacts the outer surface of the welding wire, thus limiting the welding wire's position. Simultaneously, activating the ceramic resistance heating plates rapidly heats the surface of the welding wire, enabling the limiting and uniform heating of welding wires of different diameters, thus improving the device's practicality.

[0013] As a further technical solution of this utility model, a locking frame is fixedly installed on the side of the top of the ceramic resistance heating plate away from the movable ring, and a guide wheel is movably installed on the inner side of the locking frame, and the outer side of the guide wheel is on the same horizontal plane as the inner side of the ceramic resistance heating plate.

[0014] By bringing multiple ceramic resistance heating plates closer together, when the inner surfaces of the ceramic resistance heating plates come into contact with the outer surfaces of the welding wire, the outer surfaces of the guide wheels also come into contact with the surface of the welding wire. At this point, pushing the welding wire toward the fixed ring will drive the multiple guide wheels to rotate. Under the guidance of the guide wheels, the welding wire is driven to move toward the fixed ring. Combined with the heating of the ceramic resistance heating plates, this completes the continuous preheating process of the welding wire, improving the overall preheating efficiency of the welding wire and improving the subsequent welding quality.

[0015] The beneficial effects of this utility model are as follows:

[0016] (1) This utility model activates the electric push rod and controls it to shorten. At this time, the movable ring can move towards the fixed ring, and the distance between the movable ring and the fixed ring decreases accordingly. The first fixed seat moves towards the fixed ring, and multiple connecting rods deflect inward and apply a thrust to the adjusting block. At this time, multiple adjusting blocks and extension rods move closer to each other, and eventually drive multiple ceramic resistance heating plates to move closer to each other until the inner side of the ceramic resistance heating plate contacts the outer side of the welding wire, thus completing the limit of the welding wire. At the same time, activating the ceramic resistance heating plate can quickly heat the surface of the welding wire, completing the limit of welding wires of different diameters and the uniform heating process, thus improving the practicality of the device.

[0017] (2) By bringing multiple ceramic resistance heating plates closer together, when the inner side of the multiple ceramic resistance heating plates comes into contact with the outer side of the welding wire, the outer side of the guide wheel also comes into contact with the surface of the welding wire. At this time, by pushing the welding wire toward the fixed ring, the multiple guide wheels can be driven to rotate. Under the guidance of the guide wheels, the welding wire is driven to move toward the fixed ring. In conjunction with the heating of the ceramic resistance heating plates, the continuous preheating process of the welding wire is completed, improving the overall preheating efficiency of the welding wire and improving the subsequent welding quality. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram showing the fit between the fixing ring, the electric push rod, and the extension frame structure of this utility model;

[0020] Figure 3 This is an exploded view of the structure of the adjusting guide rail and adjusting components of this utility model;

[0021] Figure 4 This is a schematic diagram showing the assembly of the synchronization frame, guide wheel, and ceramic resistance heating plate structure of this utility model.

[0022] In the diagram: 1. Fixed ring; 2. Electric push rod; 3. Ear plate; 4. Extension frame; 5. Adjusting guide rail; 6. Movable ring; 7. Adjusting assembly; 701. First fixed seat; 702. Second fixed seat; 703. Adjusting block; 704. Extension rod; 705. Connecting rod; 8. Synchronizing frame; 9. Locking frame; 10. Guide wheel; 11. Ceramic resistance heating plate. Detailed Implementation

[0023] 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.

[0024] like Figures 1 to 4 As shown in the embodiment of this utility model, a preheating device for welding wire for automatic welding of aluminum alloy pipes includes a fixed ring 1, a movable ring 6 at the front end of the fixed ring 1, an electric push rod 2 fixedly mounted in a circular shape at one end of the fixed ring 1 near the movable ring 6, the output end of the electric push rod 2 being connected to an ear plate 3, an extension frame 4 fixedly mounted in a circular shape on the outer side of the fixed ring 1, ear plates 3 being mounted on both the left and right sides of the fixed ring 1, an adjusting guide rail 5 being mounted on the side of the extension frame 4 away from the fixed ring 1, the adjusting guide rail 5 being perpendicular to the extension frame 4, a ceramic resistance heating plate 11 being provided on the inner side of the adjusting guide rail 5, an adjusting component 7 being movably engaged inside the adjusting guide rail 5, the adjusting component 7 being circumferentially mounted on the front position of the movable ring 6, and the ceramic resistance heating plate 11 being connected to an external power supply device via a power cord.

[0025] Before preheating the welding wire, the fixing ring 1 needs to be fixed by the ear plate 3 to ensure that the device is in a horizontal state. The power supply of the ceramic resistance heating plate 11 is connected by an external power supply device. At the same time, the free end of the welding wire to be heated needs to be inserted into the position between multiple ceramic resistance heating plates 11, so that the free end of the welding wire can be led out through the middle of the movable ring 6 and the fixing ring 1, thus completing the preparation before heating the welding wire.

[0026] like Figure 1 and Figure 3As shown, the adjusting assembly 7 includes a first fixed seat 701, which is circumferentially mounted on the front of the movable ring 6. The end of the first fixed seat 701 away from the movable ring 6 is movably connected to a connecting rod 705 via a pivot. The end of the connecting rod 705 away from the first fixed seat 701 is movably connected to a second fixed seat 702 via a pivot. An adjusting block 703 is fixedly mounted on the front of each of the second fixed seats 702. The adjusting block 703 is movably engaged with the adjusting guide rail 5 and is displaced relative to the adjusting guide rail 5. An adjusting block 703 is fixedly mounted on the inner surface of each of the adjusting blocks 703. The extension rod 704 has its bottom end passing through the bottom end of the adjusting guide rail 5 and connected to one end of the outer side of the ceramic resistance heating plate 11. The end of the adjusting block 703 away from the second fixed seat 702 is fixedly mounted with a synchronous frame 8. The end of the synchronous frame 8 away from the adjusting block 703 is connected to the other end of the outer side of the ceramic resistance heating plate 11. The electric push rod 2 is used to control the distance between the fixed ring 1 and the movable ring 6. When the distance between the fixed ring 1 and the movable ring 6 is at its minimum value, the diameter of the circle formed by the three ceramic resistance heating plates 11 is also at its minimum value.

[0027] By activating the electric push rod 2 and controlling its shortening, the movable ring 6 can move towards the fixed ring 1, thus reducing the distance between them. The first fixed seat 701 then moves closer to the fixed ring 1, and multiple connecting rods 705 deflect inwards, applying a pushing force to the adjusting block 703. This causes the adjusting blocks 703 and the extension rod 704 to move closer together, ultimately bringing multiple ceramic resistance heating plates 11 closer until the inner surface of the ceramic resistance heating plate 11 contacts the outer surface of the welding wire, thus limiting the welding wire. Simultaneously, activating the ceramic resistance heating plate 11 rapidly heats the surface of the welding wire, achieving both limiting and uniform heating of welding wires of different diameters, thus improving the device's practicality.

[0028] like Figure 1 and Figure 4 As shown, a locking frame 9 is fixedly installed on the side of the top of the ceramic resistance heating plate 11 away from the movable ring 6. A guide wheel 10 is movably installed on the inner side of the locking frame 9. The outer side of the guide wheel 10 is on the same horizontal plane as the inner side of the ceramic resistance heating plate 11.

[0029] By bringing multiple ceramic resistance heating plates 11 closer together, when the inner surfaces of the multiple ceramic resistance heating plates 11 come into contact with the outer surfaces of the welding wire, the outer surfaces of the guide wheels 10 also come into contact with the surface of the welding wire. At this time, by pushing the welding wire toward the fixing ring 1, the multiple guide wheels 10 can be driven to rotate. Under the guidance of the guide wheels 10, the welding wire is driven to move toward the fixing ring 1. Combined with the heating of the ceramic resistance heating plates 11, the continuous preheating process of the welding wire is completed, improving the overall preheating efficiency of the welding wire and improving the subsequent welding quality.

[0030] Working principle and usage process:

[0031] Before preheating the welding wire, the fixing ring 1 needs to be fixed by the ear plate 3 to ensure that the device is in a horizontal state, and the power supply of the ceramic resistance heating plate 11 needs to be connected by the external power supply equipment. At the same time, the free end of the welding wire to be heated needs to be inserted into the position between multiple ceramic resistance heating plates 11, so that the free end of the welding wire can be led out through the middle of the movable ring 6 and the fixing ring 1, thus completing the preparation before heating the welding wire.

[0032] When the electric push rod 2 is activated and shortened, the movable ring 6 moves toward the fixed ring 1, and the distance between the movable ring 6 and the fixed ring 1 decreases. The first fixed seat 701 moves toward the fixed ring 1, and the multiple connecting rods 705 deflect inward and apply a pushing force to the adjusting block 703. The multiple adjusting blocks 703 and the extension rod 704 move closer to each other, and eventually drive the multiple ceramic resistance heating plates 11 to move closer to each other until the inner side of the ceramic resistance heating plate 11 contacts the outer side of the welding wire, thus completing the limit of the welding wire. At the same time, the ceramic resistance heating plate 11 can be activated to quickly heat the surface of the welding wire.

[0033] When the inner surfaces of multiple ceramic resistance heating plates 11 come into contact with the outer surfaces of the welding wire, the outer surfaces of the guide wheels 10 also come into contact with the surface of the welding wire. At this time, by pushing the welding wire toward the fixed ring 1, the multiple guide wheels 10 can be driven to rotate. Under the guidance of the guide wheels 10, the welding wire is driven to move toward the fixed ring 1, and in conjunction with the heating of the ceramic resistance heating plates 11, the continuous preheating process of the welding wire is completed.

[0034] 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 welding wire preheating device for automatic welding of aluminum alloy pipes, comprising a fixing ring (1), characterized in that: The fixed ring (1) has a movable ring (6) at its front end. An electric push rod (2) is fixedly installed in a circular shape at one end of the fixed ring (1) near the movable ring (6). The output end of the electric push rod (2) is connected to the ear plate (3). An extension frame (4) is fixedly installed in a circular shape on the outer side of the fixed ring (1). Ear plates (3) are installed on both the left and right sides of the fixed ring (1). An adjustment guide rail (5) is installed on the side of the extension frame (4) away from the fixed ring (1). The adjustment guide rail (5) and the extension frame (4) are perpendicular to each other. A ceramic resistance heating plate (11) is provided on the inner side of the adjustment guide rail (5). An adjustment component (7) is movably engaged inside the adjustment guide rail (5). The adjustment component (7) is installed in a circular shape on the front side of the movable ring (6). The ceramic resistance heating plate (11) is connected to an external power supply device through a power cord.

2. The welding wire preheating device for automatic welding of aluminum alloy pipes according to claim 1, characterized in that: The adjustment assembly (7) includes a first fixed seat (701), which is circumferentially mounted on the front of the movable ring (6). The end of the first fixed seat (701) away from the movable ring (6) is movably connected to a connecting rod (705) via a rotating shaft.

3. The welding wire preheating device for automatic welding of aluminum alloy pipes according to claim 2, characterized in that: The end of the connecting rod (705) away from the first fixed seat (701) is movably connected to the second fixed seat (702) via a rotating shaft. An adjusting block (703) is fixedly installed on the front of the second fixed seat (702). The adjusting block (703) is movably engaged with the adjusting guide rail (5) and is displaced relative to the adjusting guide rail (5).

4. The welding wire preheating device for automatic welding of aluminum alloy pipes according to claim 3, characterized in that: An extension rod (704) is fixedly installed on the inner side of each adjustment block (703). The bottom end of the extension rod (704) passes through the bottom end of the adjustment guide rail (5) and is connected to one end of the outer side of the ceramic resistance heating plate (11).

5. The welding wire preheating device for automatic welding of aluminum alloy pipes according to claim 4, characterized in that: Each of the adjusting blocks (703) is fixedly mounted with a synchronization frame (8) at the end away from the second fixed seat (702). The end of the synchronization frame (8) away from the adjusting block (703) is connected to the other end of the outer side of the ceramic resistance heating plate (11).

6. The welding wire preheating device for automatic welding of aluminum alloy pipes according to claim 1, characterized in that: The electric push rod (2) is used to control the distance between the fixed ring (1) and the movable ring (6). When the distance between the fixed ring (1) and the movable ring (6) is at its minimum, the diameter of the circle formed by the three ceramic resistance heating plates (11) is also at its minimum.

7. The welding wire preheating device for automatic welding of aluminum alloy pipes according to claim 1, characterized in that: A locking frame (9) is fixedly installed on the side of the top of the ceramic resistance heating plate (11) away from the movable ring (6). A guide wheel (10) is movably installed on the inner side of the locking frame (9). The outer side of the guide wheel (10) is on the same horizontal plane as the inner side of the ceramic resistance heating plate (11).

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