A semi-automatic welding device for special-shaped tube tube plate

Abstract

The utility model provides a kind of special-shaped tube tube plate semi-automatic welding device, including first motor, connecting rod, special-shaped tube positioning block, connecting spring, positioning assembly and welding torch component, the first end of connecting rod and the motor shaft of first motor fixed connection, the second end of connecting rod and the special-shaped tube positioning block pivot connection, the first motor drives the rotation of connecting rod relative to the special-shaped tube positioning block, the positioning assembly is fixed on the connecting rod, the welding torch component is fixed on the positioning assembly.The utility model has the advantages of simple structure, ingenious design, welding torch can accurately align special-shaped tube welding point tangent line etc..

Description

Technical Field

[0001] This utility model relates to the field of welding irregular tubes, specifically to a semi-automatic welding device for irregular tube plates. Background Technology

[0002] In the existing technology, because irregularly shaped tubes are not elliptical in shape but rather have one end larger than the other, the angle of the welding gun cannot be adjusted in time during welding, which can easily lead to welding errors and affect the welding quality of the final product.

[0003] Therefore, it is necessary to provide a new technical solution. Utility Model Content

[0004] To address the technical problems existing in the prior art, this utility model discloses a semi-automatic welding device for irregularly shaped tube sheets, the specific technical solution of which is as follows:

[0005] This utility model provides a semi-automatic welding device for irregularly shaped tubes and tube sheets, including a first motor, a connecting rod, an irregularly shaped tube positioning block, a positioning assembly, and a welding torch assembly.

[0006] The first end of the connecting rod is fixedly connected to the motor shaft of the first motor, and the second end of the connecting rod is pivotally connected to the shaped tube positioning block. The first motor drives the connecting rod to rotate relative to the shaped tube positioning block.

[0007] The positioning component is fixed to the connecting rod.

[0008] The welding gun assembly is fixed on the positioning assembly.

[0009] The first motor drives the connecting rod to rotate together, the connecting rod drives the positioning component to rotate together, and the positioning component drives the welding torch assembly to rotate together.

[0010] Furthermore, the positioning assembly includes a motor fixing guide rail base, a motor fixing guide rail, a motor fixing slider, a second motor, and a positioning bearing.

[0011] The motor mounting rail base is fixed to the connecting rod.

[0012] The motor fixing guide rail is vertically mounted on the motor fixing guide rail base.

[0013] The first end of the motor fixing slider is movably disposed within the motor fixing guide rail, and the second end of the motor fixing slider is fixedly connected to the second motor.

[0014] The second motor is placed on the motor mounting rail base in contact with but not connected to the motor.

[0015] The positioning bearing is fixed on the motor shaft of the second motor, and the bottom of the positioning bearing is in contact with the top of the shaped tube positioning block.

[0016] Furthermore, it also includes a connecting spring, the first end of which is fixedly connected to the lower part of the motor fixing guide rail base, and the second end of which is fixedly connected to the motor fixing slider. The connecting spring is kept in a stretched state to push the motor fixing slider against the lower part of the motor fixing guide rail base, and the positioning bearing is always attached to the shaped tube positioning block.

[0017] Furthermore, the welding torch assembly is fixed on the motor shaft of the second motor, and the second motor controls the rotation angle of the welding torch assembly to make the welding torch assembly perpendicular to the shaped tube positioning block.

[0018] Furthermore, the welding torch assembly includes a welding torch holder and a welding torch. The welding torch holder is fixed on the motor shaft of the second motor, and the welding torch is detachably fixed on the welding torch holder. The height and rotation angle of the welding torch on the welding torch holder can be adjusted.

[0019] Furthermore, the welding torch holder is provided with a vertical strip hole, and a fixing screw is provided in the strip hole. The fixing screw passes through the strip hole and is connected and fixed to the welding torch to fix the welding torch on the welding torch holder.

[0020] This utility model has the following beneficial effects:

[0021] 1. The semi-automatic welding device for irregular tubes and tube sheets provided by this utility model has a first motor that can drive the welding torch to rotate along the contour of the irregular tube, and a connecting spring to tighten the motor fixing slider to ensure that the positioning bearing is always in close contact with the positioning block of the irregular tube. The second motor is used to fine adjust the rotation angle of the welding torch to ensure that the tip of the welding torch is always perpendicular to the tangent of the welding position of the irregular tube.

[0022] 2. The semi-automatic welding device for irregularly shaped tubes and tube sheets provided by this utility model has a welding torch that is movably fixed on a welding torch holder, allowing for flexible adjustment of the height and rotation angle of the welding torch.

[0023] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of the semi-automatic welding device for irregular tube sheets provided in this embodiment of the utility model.

[0026] Figure 2 This is a structural schematic diagram of a semi-automatic welding device for irregularly shaped tube sheets, provided by another embodiment of this utility model.

[0027] Figure 3 This is a schematic diagram of the structure of the second motor when it is not swinging, as provided in this embodiment of the utility model.

[0028] Figure 4 This is a schematic diagram of the structure of the second motor swinging according to an embodiment of the present invention. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0030] In the description of this utility model, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] This utility model discloses a semi-automatic welding device for irregularly shaped tube sheets, referenced... Figures 1 to 4 It includes a first motor (not shown), a connecting rod 1, a shaped tube positioning block 2, a connecting spring 3, a positioning assembly 4, and a welding torch assembly 5.

[0033] In one embodiment, the first end of the connecting rod 1 is fixedly connected to the motor shaft of the first motor, and the second end of the connecting rod 1 is pivotally connected to the shaped tube positioning block 2. The first motor drives the connecting rod 1 to rotate relative to the shaped tube positioning block 2. The positioning assembly 4 is fixed to the connecting rod 1, and the welding torch assembly 5 is fixed to the positioning assembly 4. The first motor drives the connecting rod 1 to rotate together, the connecting rod 1 drives the positioning assembly 4 to rotate together, and the positioning assembly 4 drives the welding torch assembly 5 to rotate together.

[0034] Specifically, the positioning component 4 includes a motor fixing guide rail base 41, a motor fixing guide rail 42, a motor fixing slider 43, a second motor 44, and a positioning bearing 45. The motor fixing guide rail base 41 is fixed to the connecting rod 1. The motor fixing guide rail 42 is vertically arranged on the motor fixing guide rail base 41. The first end of the motor fixing slider 43 is movably disposed within the motor fixing guide rail 42. The second end of the motor fixing slider 43 is fixedly connected to the second motor 44. The second motor 44 is placed on the motor fixing guide rail base 41 in contact with but not connected to it. The positioning bearing 45 is fixed to the motor shaft of the second motor 44. The bottom of the positioning bearing 45 is in contact with the top of the shaped tube positioning block 2.

[0035] The first end of the connecting spring 3 is fixedly connected to the lower part of the motor fixing guide rail base 41, and the second end of the connecting spring 3 is fixedly connected to the motor fixing slider 43. The connecting spring 3 is kept in a stretched state to push the motor fixing slider 43 against the lower part of the motor fixing guide rail base 41. The positioning bearing 45 is always attached to the shaped tube positioning block 2.

[0036] The welding torch assembly 5 is fixed on the motor shaft of the second motor 44, and the second motor 44 controls the rotation angle of the welding torch assembly 5 to make the welding torch assembly 5 perpendicular to the shaped tube positioning block 2.

[0037] Furthermore, the welding torch assembly 5 includes a welding torch holder 51 and a welding torch 52. The welding torch holder 51 is fixed on the motor shaft of the second motor 44, and the welding torch 52 is detachably fixed on the welding torch holder 51. The height and rotation angle of the welding torch 52 on the welding torch holder 51 can be adjusted movably.

[0038] The welding torch holder 51 is provided with a vertical strip hole 511. A fixing screw is provided in the strip hole 511. The fixing screw passes through the strip hole 511 and is connected and fixed to the welding torch to fix the welding torch on the welding torch holder 51.

[0039] The working principle of this invention is as follows: During operation, the entire tooling is extended forward, and the angle of the shaped tube positioning block is adjusted so that it is inserted into the shaped tube. The first motor drives the connecting rod to rotate relative to the shaped tube positioning block. During this process, the distance between the welding torch tip and the shaped tube positioning block changes. The second motor is fixedly connected to the motor-fixed slider. Under the pull of the connecting spring, the positioning bearing is pressed tightly against the shaped tube positioning block, ensuring that the positioning bearing rotates along the contour of the shaped tube. The second motor fine-tunes the angle of the welding torch to ensure that the welding torch is always perpendicular to the tangent of the welding position of the shaped tube. In this operating mode, the welding current and swing angle of each segment need to be controlled and set according to the actual shape of the shaped tube and the requirements to prevent the linear energy from being too large or too small.

[0040] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0041] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications and variations to the above embodiments within the scope of the present invention.

Claims

1. A semi-automatic welding device for irregularly shaped tube sheets, characterized in that, Includes a first motor, connecting rod, shaped tube positioning block, positioning assembly, and welding torch assembly. The first end of the connecting rod is fixedly connected to the motor shaft of the first motor, and the second end of the connecting rod is pivotally connected to the shaped tube positioning block. The first motor drives the connecting rod to rotate relative to the shaped tube positioning block. The positioning component is fixed to the connecting rod. The welding gun assembly is fixed on the positioning assembly. The first motor drives the connecting rod to rotate together, the connecting rod drives the positioning component to rotate together, and the positioning component drives the welding torch assembly to rotate together.

2. The semi-automatic welding device for irregularly shaped tube sheets according to claim 1, characterized in that, The positioning assembly includes a motor fixing guide rail base, a motor fixing guide rail, a motor fixing slider, a second motor, and a positioning bearing. The motor mounting rail base is fixed to the connecting rod. The motor fixing guide rail is vertically mounted on the motor fixing guide rail base. The first end of the motor fixing slider is movably disposed within the motor fixing guide rail, and the second end of the motor fixing slider is fixedly connected to the second motor. The second motor is placed on the motor mounting rail base in contact with but not connected to the motor. The positioning bearing is fixed on the motor shaft of the second motor, and the bottom of the positioning bearing is in contact with the top of the shaped tube positioning block.

3. The semi-automatic welding device for irregularly shaped tube sheets according to claim 2, characterized in that, It also includes a connecting spring, the first end of which is fixedly connected to the lower part of the motor fixing guide rail base, and the second end of which is fixedly connected to the motor fixing slider. The connecting spring is kept in a stretched state to push the motor fixing slider against the lower part of the motor fixing guide rail base, and the positioning bearing is always attached to the shaped tube positioning block.

4. The semi-automatic welding device for irregularly shaped tube sheets according to claim 2, characterized in that, The welding torch assembly is fixed on the motor shaft of the second motor, and the second motor controls the rotation angle of the welding torch assembly to make the welding torch assembly perpendicular to the shaped tube positioning block.

5. The semi-automatic welding device for irregularly shaped tube sheets according to claim 4, characterized in that, The welding torch assembly includes a welding torch holder and a welding torch. The welding torch holder is fixed on the motor shaft of the second motor. The welding torch is detachably fixed on the welding torch holder. The height and rotation angle of the welding torch on the welding torch holder can be adjusted.

6. The semi-automatic welding device for irregularly shaped tube sheets according to claim 5, characterized in that, The welding torch holder has a vertical strip hole, and a fixing screw is installed in the strip hole. The fixing screw passes through the strip hole and is connected and fixed to the welding torch to fix the welding torch on the welding torch holder.

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