Welding equipment for coil pipe in gas water heater

Abstract

The utility model discloses welding equipment for a coil pipe in a gas water heater. The welding equipment comprises a collecting table, the multiple collecting assemblies are arranged on the collecting table, each collecting assembly comprises two stand columns arranged in parallel, and the stand columns are perpendicular to the surface of the collecting table; a weighing sensor is arranged at the bottom of each collecting assembly; the driving device is in driving connection with the collecting table so as to drive the collecting table and the multiple collecting assemblies to rotate; and the weighing sensor is electrically connected with the driving device through a control unit. The utility model solves the technical problems that the heat absorbing sheet is not easy to collect and is easy to deform during blanking.

Description

Technical Field

[0001] The utility model relates to the technical field of coil welding, in particular to a welding device for a coil in a gas water heater. Background Art

[0002] In a gas water heater, the heat exchanger is a very important component. The working principle of the heat exchanger is to transfer the high-temperature heat energy generated during gas combustion to cold water to achieve the purpose of heating. The heat exchanger is composed of a coil, fins and a housing. Among them, the coil is connected to the top of the housing, and the coil also has a pipe surrounding the surface of the housing. In order to fix the surrounding pipe of the coil, in the prior art, multiple stainless steel cards are first arranged along the surrounding pipe to pre-fix the coil, and then manual brazing is used to melt and weld for fixation. Manual brazing requires the use of welding rods. Such a method has the problems of low welding efficiency and high welding cost. Summary of the Invention

[0003] The main purpose of the utility model is to provide a welding device for a coil in a gas water heater, aiming to effectively solve the problems in the prior art.

[0004] To achieve the above purpose, the technical solution of the utility model is as follows:

[0005] The utility model discloses a welding device for a coil in a gas water heater, comprising:

[0006] A welding machine, the welding machine includes a welding positive electrode head and a welding negative electrode head;

[0007] A support table, the support table is installed on the housing of the welding machine, and the welding positive electrode head is arranged at the support table;

[0008] A lifting assembly, the lifting assembly is located above the support table, the lifting assembly is connected with the welding negative electrode head to drive the welding negative electrode head to move up and down, and the welding negative electrode head is located directly above the welding positive electrode head; the welding end of the welding negative electrode head is in an inverted U-shaped structure.

[0009] Compared with the prior art, the utility model effectively improves the welding speed and welding quality of the coil pipe. Specifically, since the pipe of the coil pipe has a certain flexibility, the welding position between the coil pipe and the heat exchanger housing does not need to be too precise, which will not affect the connection between the coil pipe and the water inlet and the water outlet; in the utility model, the staff holds the heat exchanger housing and the coil pipe connected at some positions by hand, inserts the hollow cavity of the heat exchanger housing into the support table, and uses the support table to support the inner wall surface of the heat exchanger housing. At this time, the welding positive electrode head abuts against the inner wall surface of the heat exchanger housing, and then the staff arranges the positions of the coil pipe and the heat exchanger manually, replacing the existing pre-fixing scheme with stainless steel cards. The lifting assembly is used to control the descent of the welding negative electrode head, and the U-shaped structure of the welding negative electrode head is used to press the coil pipe, so that the circuit of the welding positive electrode head and the welding negative electrode head is connected, and then the spot welding between the heat exchanger housing and the coil pipe is completed. Spot welding does not require the use of welding rods, reducing the manufacturing cost.

[0010] In a preferred embodiment, the support table is arranged in a long strip structure.

[0011] In a preferred embodiment, a layer of scratch-proof pad is laid on the support table.

[0012] In a preferred embodiment, the lifting assembly includes a lifting cylinder, a guide post and a bracket. The guide post is erected and installed on the support table. The bracket is slidably arranged on the guide post through a linear axis, and the welding negative electrode head is installed on the bracket; the lifting cylinder drives the welding negative electrode head to move up and down by driving the bracket.

[0013] In a preferred embodiment, there are two guide posts, and an adjustment structure is arranged on the two guide posts. The cylinder is fixedly installed on the adjustment structure to adjust the fixed height of the cylinder.

[0014] In a preferred embodiment, the adjustment structure includes a first clamping plate and a second clamping plate. The first clamping plate and the second clamping plate are respectively located on the opposite sides of the two guide posts, and the first clamping plate and the second clamping plate are connected and fixed by screw fasteners.

[0015] In a preferred embodiment, a movable joint is connected between the lifting cylinder and the bracket.

[0016] In a preferred embodiment, the coil pipe welding equipment further includes a foot switch, and the foot switch is connected to the lifting cylinder to control the action of the lifting cylinder.

[0017] For better understanding and implementation, the following figure will describe the utility model in detail with reference to the accompanying drawings. Description of the Drawings

[0018] The accompanying drawings described herein are used to provide a further understanding of the present utility model and form a part of this application. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0019] Figure 1 It is a schematic side view structure diagram of a welding device for a coil pipe in a gas water heater;

[0020] Figure 2 It is a schematic front view structure diagram of a welding device for a coil pipe in a gas water heater.

[0021] Explanation of reference numerals:

[0022] 1 - Welding, 11 - Welding positive electrode head, 12 - Welding negative electrode head, 2 - Support table, 31 - Lifting cylinder, 32 - Guide post, 33 - Bracket, 34 - Movable joint, 35 - Linear bearing, 5 - Adjustment structure, 51 - First clamping plate, 52 - Second clamping plate, 61 - Heat exchanger housing, 62 - Coil pipe. Detailed implementation manners

[0023] In order to better elaborate the present utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0024] It should be clear that the described embodiments are only a part of the embodiments of this application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope protected by the embodiments of this application.

[0025] The terms used in the embodiments of this application are only for the purpose of describing specific embodiments and are not intended to limit the embodiments of this application. The singular forms of "a", "the" and "said" used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0026] When the following description refers to the accompanying drawings, unless otherwise indicated, the same numerals in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims. In the description of the present application, it should be understood that the terms "first", "second", "third", etc. are only used to distinguish similar objects and do not have to be used to describe a specific order or sequence, nor can they be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0027] In addition, in the description of the present application, unless otherwise specified, "a plurality of" means two or more. "And / or" describes the association relationship of associated objects and indicates that there can be three relationships. For example, A - and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone - these three situations. The character " / " generally represents an "or" relationship between the associated objects before and after.

[0028] Combined with Figure 1 and Figure 2 As shown, the present utility model discloses a welding device for a coil pipe in a gas water heater, including:

[0029] A welding machine 1, the welding machine 1 includes a welding positive electrode head 11 and a welding negative electrode head 12;

[0030] A support table 2, the support table 2 is installed on the outer shell of the welding machine 1, and the welding positive electrode head 11 is arranged at the support table 2;

[0031] A lifting assembly, the lifting assembly is located above the support table 2, the lifting assembly is connected with the welding negative electrode head 12 to drive the welding negative electrode head 12 to make a lifting movement, and the welding negative electrode head 12 is located directly above the welding positive electrode head 11; the welding end of the welding negative electrode head 12 is in an inverted U-shaped structure.

[0032] Compared with the prior art, the utility model effectively improves the welding speed and welding quality of the coil pipe. Specifically, since the pipe of the coil pipe has a certain flexibility, the welding position of the coil pipe and the heat exchanger housing does not need to be too precise, which will not affect the connection between the coil pipe and the water inlet and the water outlet; in the utility model, the staff holds the heat exchanger housing and the coil pipe connected at a part with hands, inserts the hollow cavity of the heat exchanger housing into the support table 2, and uses the support table 2 to support the inner wall surface of the heat exchanger housing. At this time, the welding positive electrode head 11 abuts against the inner wall surface of the heat exchanger housing, and then the staff arranges the positions of the coil pipe and the heat exchanger manually. Instead of the existing scheme of pre-fixing with stainless steel cards, the lifting assembly is used to control the descent of the welding negative electrode head 12, and the U-shaped structure of the welding negative electrode head 12 is used to press the coil pipe, so that the circuit of the welding positive electrode head 11 and the welding negative electrode head 12 is connected, and then the spot welding of the heat exchanger housing and the coil pipe is completed. The use of spot welding does not require the use of welding rods, reducing the manufacturing cost.

[0033] Further, the support table 2 is arranged in a long strip structure, so as to facilitate the staff to move the heat exchanger horizontally and perform multi-point welding of the coil pipe horizontally to ensure the stable welding of the coil pipe.

[0034] Further, a layer of anti-scratch pad is laid on the support table 2 to prevent the support table 2 from scratching the wall surface of the heat exchanger when the staff inserts and takes out the hollow cavity of the heat exchanger housing from the support table 2, and when the staff moves the heat exchanger horizontally during the welding process.

[0035] Further, the lifting assembly includes a lifting cylinder 31, a guide post 32 and a bracket 33. The guide post 32 is vertically installed on the support table 2. The bracket 33 is slidably arranged on the guide post 32 along a straight axis, and the welding negative electrode head 12 is installed on the bracket 33; the lifting cylinder 31 drives the bracket 33 to drive the welding negative electrode head 12 to perform lifting movement.

[0036] Further, there are two guide posts 32, and an adjustment structure 5 is arranged on the two guide posts 32. The cylinder is fixedly installed on the adjustment structure 5 to adjust the fixed height of the cylinder, so as to adjust the welding negative electrode head 12 to a suitable height and ensure the welding quality.

[0037] Further, the adjustment structure 5 includes a first clamping plate 51 and a second clamping plate 52. The first clamping plate 51 and the second clamping plate 52 are respectively located on opposite sides of the two guide posts 32, and the first clamping plate 51 and the second clamping plate 52 are connected and fixed by screw fasteners, thereby clamping the two guide posts 32 to achieve the purpose of fixing the height of the adjustment structure 5; while the height of the welding negative electrode head 12 can be adjusted by adjusting the heights of the first clamping plate 51 and the second clamping plate 52, the fixing purpose is achieved.

[0038] Further, a movable joint 34 is connected between the lifting cylinder 31 and the bracket 33. The movable joint 34 is used to solve the problems of axial displacement and eccentricity encountered during the movement of the lifting cylinder 31 and extend the service life of the lifting cylinder 31.

[0039] Further, the coil welding device further includes a foot switch, and the foot switch is connected to the lifting cylinder 31 to control the action of the lifting cylinder 31, so that during the welding process, the operator can control the lifting of the welding negative electrode head 12 by stepping on the foot switch with the foot, allowing the operator's hands to only hold the heat exchanger, which is convenient for the operator to work.

[0040] The present utility model is not limited to the above embodiments. If various modifications or deformations of the present utility model do not depart from the spirit and scope of the present utility model, and provided that these modifications and deformations are within the scope of the claims of the present utility model and equivalent technical scope, then the present utility model also intends to include these modifications and deformations.

Claims

1. A welding device for a coil in a gas water heater, characterized in that, Comprising: A welding machine, which includes a welding positive electrode head and a welding negative electrode head; A support table, which is installed on the outer shell of the welding machine, and the welding positive electrode head is provided at the support table; A lifting assembly, which is located above the support table. The lifting assembly is connected with the welding negative electrode head to drive the welding negative electrode head to move up and down. The welding negative electrode head is located directly above the welding positive electrode head; the welding end of the welding negative electrode head is in an inverted U-shaped structure.

2. The welding equipment for the coil in a gas water heater according to claim 1, characterized in that: The support table is arranged in a long strip structure.

3. The welding device for the coil in the gas water heater according to claim 1 or 2, characterized in that: A layer of scratch-proof pad is laid on the support table.

4. The welding equipment for the coil in a gas water heater according to claim 1, characterized in that: The lifting assembly includes a lifting cylinder, a guide post and a bracket. The guide post is vertically installed on the support table. The bracket is slidably arranged on the guide post along a straight axis, and the welding negative electrode head is installed on the bracket; the lifting cylinder drives the bracket to drive the welding negative electrode head to move up and down.

5. The welding equipment for the coil in a gas water heater according to claim 4, characterized in that: There are two guide posts, and an adjustment structure is arranged on the two guide posts. The cylinder is fixedly installed on the adjustment structure to adjust the fixed height of the cylinder.

6. The welding equipment for the coil in a gas water heater according to claim 5, characterized in that: The adjustment structure includes a first clamping plate and a second clamping plate. The first clamping plate and the second clamping plate are respectively located on the opposite sides of the two guide posts, and the first clamping plate and the second clamping plate are connected and fixed by screw fasteners.

7. The welding equipment for the coil in a gas water heater according to claim 4, characterized in that: A movable joint is connected between the lifting cylinder and the bracket.

8. The welding equipment for the coil in a gas water heater according to claim 4, characterized in that: The coil welding equipment further includes a foot switch, and the foot switch is connected with the lifting cylinder to control the action of the lifting cylinder.

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