Smoke exhaust pipe welding device

Abstract

The utility model provides a smoke exhaust pipe welding device which comprises a conveying guide rail which is horizontally arranged, an arc-shaped guide groove is formed in the upper surface of the conveying guide rail in a sunken mode and used for conveying the end of a smoke exhaust pipe to be welded, an arc-shaped upper limit plate is arranged at the tail end of the conveying guide rail in the conveying direction, and a through containing hole is formed in the bottom face of the arc-shaped guide groove; the limiting plate is arranged at the tail end of the conveying guide rail, a preset distance is reserved between the limiting plate and the tail end of the conveying guide rail, and the limiting plate moves in the vertical direction; the rotating roller set is arranged below the conveying guide rail and corresponds to the containing hole, the rotating roller set is rotationally arranged on a pair of rotating bases and is driven by a motor, the rotating bases and the motor are arranged on a lifting plate, and the lifting plate is movably arranged in the vertical direction; the welding gun is arranged at the tail end of the conveying guide rail and used for welding the end, limited by the limiting plate, of the smoke exhaust pipe. According to the device, the limited end of the smoke exhaust pipe is rotated by simulating fluctuation rotation so as to be matched for welding, feeding and discharging are rapid and convenient, and the welding efficiency and the automation degree during operation are improved.

Description

Technical Field

[0001] The present application relates to a smoke exhaust pipe preparation technology, and in particular to a smoke exhaust pipe welding device. Background Art

[0002] In order to prevent the end of the smoke exhaust pipe from encountering airflow backflow, thereby affecting the operating effectiveness and safety of the water heater, the water heater manufacturer will set circumferential smoke exhaust holes at the end of the smoke exhaust pipe and set a sealing cover to seal the end of the smoke exhaust pipe, so as to ensure smooth exhaust of smoke while preventing airflow backflow. In actual production, the end of the smoke exhaust pipe is generally processed separately, including the pipe body at the end and the sealing cover that cooperates with the pipe body, wherein a certain number of smoke exhaust holes will be processed circumferentially on the pipe body, and the sealing cover will form a convex portion on the side facing the pipe body for diversion and circumferential exhaust. After the two are processed separately, they need to be assembled, the sealing cover is assembled on this section of the pipe body, and then the matching gap is welded to form a stable and sealed structure. In order to achieve welding at this position, the pipe body is generally fixed by a clamp, and then the welding gun is held in a circular direction to complete the welding, or the clamp is rotated along the axis of the pipe body to cooperate with the relatively fixed welding gun to complete the welding. The former method is less efficient and cannot maintain good welding consistency. The latter method requires clamping the pipe body for rotation. If it is clamped from the outside, the exhaust pipe is made of metal with low hardness, and the clamping process may cause clamping damage or deformation. If it is clamped from the inside, it is more cumbersome to load and unload each time. Utility Model Content

[0003] In order to solve the above-mentioned deficiencies of the prior art, the present application provides a smoke exhaust pipe welding device, which rotates the limited end of the smoke exhaust pipe by simulating wave rotation to cooperate with welding, and loading and unloading are quick and convenient, thereby improving welding efficiency and the degree of automation during operation.

[0004] In order to achieve the above purpose, the utility model adopts the following technologies:

[0005] A smoke exhaust pipe welding device, comprising:

[0006] The conveying guide rail is arranged horizontally, and its upper surface is concave to form an arc-shaped guide groove, which is used to convey the end of the exhaust pipe to be welded. Along the conveying direction, the end of the conveying guide rail has an arc-shaped upper limit plate, and the arc-shaped upper limit plate and the arc-shaped guide groove form a full circle ring, which is used to circumferentially limit the end of the exhaust pipe. The bottom surface of the arc-shaped guide groove has a through accommodating hole;

[0007] A limit plate is arranged at the end of the conveying guide rail and is a predetermined distance away from the end of the conveying guide rail, and the limit plate is arranged to move vertically;

[0008] The rotating roller group is arranged below the conveying guide rail and is arranged corresponding to the accommodating hole. The size of the accommodating hole is set so that the rotating roller group can pass through. The rotating roller group is rotatably arranged on a pair of rotating seats and driven by a motor. The rotating seats and the motor are arranged on a lifting plate, and the lifting plate is arranged to move vertically.

[0009] The welding gun is arranged at the end of the conveying guide rail and is used to weld the end of the exhaust pipe which is limited by the limit plate. Specifically, the welding gun can be arranged to move radially along the end of the exhaust pipe.

[0010] Furthermore, a rubber coating layer is provided on the surface of the rotating roller group to increase the friction force in contact with the end of the smoke exhaust pipe.

[0011] The beneficial effects of the utility model are:

[0012] By rotating the roller group to enter the accommodating hole, the front end and the circumferentially limited smoke exhaust pipe end are subjected to undulating rotation to achieve rotation in coordination with welding without the need for clamping. Loading and unloading are quick and convenient, which is beneficial to improving welding efficiency and the degree of automation during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the welding device according to an embodiment of the present application.

[0014] Figure 2 It is a schematic diagram of the overall structure of the welding device according to an embodiment of the present application from another perspective.

[0015] Figure 3 It is a schematic diagram of the conveying guide rail structure of an embodiment of the present application.

[0016] Figure 4 It is a partial cross-sectional schematic diagram of the local structure of the welding device according to an embodiment of the present application. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings, but the embodiments described in the utility model are only part of the embodiments of the utility model, rather than all the embodiments.

[0018] The present application embodiment provides a smoke exhaust pipe welding device, such as Figure 1 As shown, it includes a horizontally arranged conveying rail 1, a limiting plate 2 arranged at a predetermined distance from the end of the conveying rail 1, a rotating roller group 42 arranged below the conveying rail 1, and a welding gun 3 arranged at the end of the conveying rail 1 and used to weld the end of the exhaust pipe limited by the limiting plate 2. Here, the end of the exhaust pipe refers to the end section of the exhaust pipe that has been equipped with a blocking cover, and the device of this example is used to weld the blocking cover and the end section of the exhaust pipe.

[0019] like Figure 2-Figure 3 As shown, the upper surface of the conveying guide rail 1 is concavely formed with an arc-shaped guide groove 10, which is used to convey the end of the exhaust pipe to be welded. Specifically, the arc of the arc-shaped guide groove 10 matches the outer diameter of the end of the exhaust pipe. Along the conveying direction, the end of the conveying guide rail 1 has an arc-shaped upper limit plate 11, and the arc-shaped upper limit plate 11 cooperates with the arc-shaped guide groove 10 to form a ring-shaped limitation to circumferentially limit the end of the exhaust pipe entering here. The bottom surface of the arc-shaped guide groove 10 has a through accommodating hole 12, and the size of the accommodating hole 12 is set to be based on the ability of the rotating roller group 42 to pass through, so as to allow the rotating roller group 42 to perform undulating rotation on the end of the exhaust pipe here.

[0020] like Figure 1 and Figure 4 As shown, the specific setting position of the limit plate 2 is shown. The purpose of setting the predetermined distance is that when the end of the smoke exhaust pipe is limited at the limit plate 2, the part to be welded can be located between the limit plate 2 and the outer end of the arc-shaped upper limit plate 11, so as to facilitate welding by the welding gun 3. Specifically, the height of the limit plate 2 does not need to be too high, so that the end of the smoke exhaust pipe can be blocked and limited from the lower position. In order to achieve blocking and release after welding, the limit plate 2 is set to move vertically. The welding gun 3 is set to move radially along the end of the conveyed smoke exhaust pipe. The specific position of the end face view can be set according to the actual application situation, as long as it does not interfere with other structures, such as in Figure 4 In the shown perspective, the welding gun 3 is arranged on the upper side.

[0021] like Figure 2 and Figure 4 As shown, the rotating roller group 42 needs to be set corresponding to the accommodating hole 12. Specifically, the rotating roller group 42 is rotatably set on a pair of rotating seats 43 and driven by a motor 44. Specifically, it can be transmitted through a synchronous belt 45, that is, the output shaft of the motor 44 is connected to the pulley, and the rotating shaft of the rotating roller group 42 is also connected to the pulley. The synchronous belt 45 is sleeved on the two pulleys, so that the rotational force output by the motor 44 can be transmitted to the rotating roller group 42 for rotation. Preferably, in order to increase the friction between the rotating roller group 42 and the peripheral side of the end of the smoke exhaust pipe to ensure an effective wave rotation effect, a rubber coating layer can be provided on the surface of the rotating roller group 42. Furthermore, the rotating seat 43 and the motor 44 are both provided on a lifting plate 4, and the lifting plate 4 is arranged to move vertically. Specifically, the movement of the lifting plate 4 can be achieved by connecting a vertical cylinder 41. The lifting cylinder 41 is vertically arranged and installed on the bottom surface of the conveying guide rail 1.

[0022] In order to reduce the complexity of the overall structure, it is preferred that the movement of the limit plate 2 can be synchronized with the movement of the lifting plate 4, so the limit plate 2 can be set on the lifting plate 4, but it should be noted that during the rising process, the length of the limit plate 2 needs to have certain setting requirements. It should be that when the limit plate 2 has been raised to block the end of the exhaust pipe, the rotating roller group 42 has not yet begun to contact the end of the exhaust pipe, that is, it is necessary to block the limit first, and then continue to rise to make contact fluctuations. At the same time, after continuing to rise, the limit plate 2 also needs to keep acting only on the lower part of the end of the exhaust pipe. The lower part here is for example Figure 4 View shown, from the end looking down.

[0023] When in use, the ends of the exhaust pipes to be welded are arranged in the arc-shaped guide groove 10 of the conveying guide rail 1, and are conveyed by squeezing and pushing from the rear side; at the same time, the limit plate 2 is raised so that it can block and limit the ends of the exhaust pipes entering the end of the arc-shaped guide groove 10. When the front end of the exhaust pipe is limited by the limit plate 2, its circumference is also limited by the arc-shaped guide groove 10 and the arc-shaped upper limit plate 11 at the same time. The lifting plate 4 is further raised by the lifting cylinder 41, so that the rotating roller group 42 is slightly exposed from the accommodating hole 12 to contact the circumference of the end of the exhaust pipe. The rotating roller group 42 driven by the motor 44 to rotate realizes the wave rotation of the circumference of the end of the exhaust pipe, so that the end of the exhaust pipe rotates under the circumferential limitation to cooperate with the welding gun 3 to complete the welding. This is similar to the rotation of the end of the exhaust pipe through manual wave limiting.

[0024] After welding is completed, the lifting plate 4 is lowered to disengage the rotating roller group 42 from the end of the smoke exhaust pipe, and continues to descend. The limit plate 2 releases the limitation on the front end of the smoke exhaust pipe end, and then the queue is pushed to send out the welded smoke exhaust pipe end, realizing quick and convenient loading and unloading.

[0025] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application.

Claims

1. A smoke exhaust pipe welding device, characterized in that: include: The conveying guide rail (1) is arranged horizontally, and its upper surface is concave to form an arc-shaped guide groove (10), which is used to convey the end of the smoke exhaust pipe to be welded. Along the conveying direction, the end of the conveying guide rail (1) has an arc-shaped upper limit plate (11), and the bottom surface of the arc-shaped guide groove (10) has a through accommodating hole (12); A limit plate (2) is arranged at the end of the conveying guide rail (1) and at a predetermined distance from the end of the conveying guide rail (1), and the limit plate (2) is arranged to move vertically; A rotating roller group (42) is disposed below the conveying guide rail (1) and is arranged corresponding to the accommodating hole (12); the rotating roller group (42) is rotatably disposed on a pair of rotating seats (43) and is driven by a motor (44); the rotating seats (43) and the motor (44) are disposed on a lifting plate (4); and the lifting plate (4) is arranged to move vertically; A welding gun (3) is arranged at the end of the conveying guide rail (1) and is used to weld the end of the smoke exhaust pipe which is limited by the limiting plate (2).

2. The exhaust pipe welding device according to claim 1, characterized in that: The limiting plate (2) is arranged on the lifting plate (4).

3. The exhaust pipe welding device according to claim 2, characterized in that: The lifting plate (4) is connected to the movable end of the lifting cylinder (41), and the lifting cylinder (41) is vertically arranged and installed on the bottom surface of the conveying guide rail (1).

4. The exhaust pipe welding device according to claim 1, characterized in that: The size of the accommodating hole (12) is set so that the rotating roller group (42) can pass through.

5. The smoke exhaust pipe welding device according to claim 1, characterized in that: A rubber coating layer is provided on the surface of the rotating roller group (42).

6. The exhaust pipe welding device according to claim 1, characterized in that: The welding gun (3) is arranged to move radially along the end of the conveying smoke exhaust pipe.

7. The exhaust pipe welding device according to claim 1, characterized in that: The arc-shaped upper limit plate (11) and the arc-shaped guide groove (10) form a full circular ring, which is used to circumferentially limit the end of the smoke exhaust pipe.

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