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 bearing positioning block, special-shaped tube positioning block, rotating shaft, positioning assembly and welder, the edge shape of bearing positioning block and the edge shape of special-shaped tube are same, rotating shaft is vertically pivotally connected in the first surface of bearing positioning block, special-shaped tube positioning block is fixed on the second surface opposite first surface of bearing positioning block, positioning assembly is elastically fixed on rotating shaft, positioning assembly can rotate along the side of the edge of bearing positioning block, welder is slidably fixed on positioning assembly.The utility model has the advantages of simple structure, easy operation, can adjust welder height and inclination angle, can quickly and conveniently weld irregular special-shaped tube 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 existing technologies, automatic and semi-automatic tube sheet welding machines are generally suitable for welding regularly shaped round tube sheets. For irregularly shaped tube sheets, the angle and distance of the welding torch cannot be adjusted in time during automatic welding, thus manual welding is often used. Manual welding is inefficient, time-consuming, and costly, hindering cost reduction and efficiency improvement for enterprises.

[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 bearing positioning block, an irregularly shaped tube positioning block, a rotary bearing, a fixed connecting rod, a positioning assembly, and a welding torch.

[0006] The edge shape of the shaped tube positioning block matches the edge shape of the shaped tube, and the end of the shaped tube positioning block can extend into the shaped tube.

[0007] The rotary bearing is fixed at the center of the first surface of the bearing positioning block.

[0008] The fixed connecting rod is fixed to the center of the rotary bearing, and the fixed connecting rod is rotatable relative to the rotary bearing.

[0009] The shaped tube positioning block is vertically fixed to the second surface of the bearing positioning block opposite to the first surface.

[0010] One end of the positioning component is fixed to the fixed connecting rod, and the other end of the positioning component is elastically in contact with the side of the bearing positioning block. The positioning component can rotate around the rotating bearing as the center along the side of the bearing positioning block.

[0011] The welding torch is slidably fixed on the positioning assembly. The height of the welding torch on the positioning assembly and the angle between the welding torch and the positioning assembly can be adjusted. The tip of the welding torch is always close to and pointing towards the weld seam at the edge of the shaped tube.

[0012] As the positioning assembly rotates around the bearing positioning block, the tip of the welding torch rotates around the weld.

[0013] Furthermore, the positioning assembly includes a spring connecting rod, a spring, a positioning bearing mounting block, and a positioning bearing.

[0014] One end of the spring link is vertically fixed to the fixed link.

[0015] The positioning bearing mounting block is movably sleeved on the spring connecting rod.

[0016] The positioning bearing is fixedly connected to the positioning bearing mounting block.

[0017] The spring is sleeved on the spring connecting rod, the first end of the spring is fixedly connected to the fixed connecting rod, and the second end of the spring is fixedly connected to the positioning bearing mounting block. The spring is kept in a stretched state to keep the positioning bearing tightly against the side of the bearing positioning block.

[0018] Furthermore, the positioning bearing is pivotally connected to the positioning bearing mounting block, and the positioning bearing and the bearing positioning block have side rolling contact.

[0019] Furthermore, the shaped tube positioning block and the shaped tube are fitted with a small clearance, and the end of the shaped tube positioning block is chamfered to facilitate insertion into the shaped tube.

[0020] Furthermore, the welding torch is fixed on the spring connecting rod, and the height of the welding torch on the spring connecting rod and the angle between the welding torch and the spring connecting rod can be adjusted. As the positioning bearing rotates around the side of the bearing positioning block, the welding torch automatically adjusts its height on the spring connecting rod and the angle between the welding torch and the spring connecting rod, so that the tip of the welding torch is always 1-2mm away from the weld at different angles.

[0021] Furthermore, it also includes a rotary motor, which is connected to the fixed connecting rod. The rotary motor drives the fixed connecting rod to rotate, thereby causing the welding torch to rotate around the weld seam.

[0022] Furthermore, it also includes a movable frame, on which the welding device is fixed, and the welding device can move up and down, left and right, and forward and backward with the movable frame.

[0023] This utility model has the following beneficial effects:

[0024] 1. The semi-automatic welding device for irregularly shaped tubes and tube sheets provided by this utility model has a simple structure and is easy to manufacture and modify on site.

[0025] 2. The semi-automatic welding device for irregular tubes and tube sheets provided by this utility model uses a rotary motor to drive a fixed connecting rod to rotate, thereby causing the positioning bearing to rotate around the side of the bearing positioning block. This allows the tip of the welding torch to rotate around the weld seam on the edge of the irregular tube. Adjusting the edge shape of the bearing positioning block can adjust the rotation of the tip of the welding torch around the edge of the irregularly shaped tube.

[0026] 3. The semi-automatic welding device for irregular tubes and tube sheets provided by this utility model has a welding torch that is slidably fixed on a spring connecting rod, which can adjust the height of the welding torch and can also adjust the tilt angle of the welding torch. Even if the irregular tube in this application is shaped with one end larger than the other, the tip of the welding torch can approach the weld seam at the edge of the irregular tube at different angles, which facilitates welding.

[0027] 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

[0028] 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.

[0029] Figure 1 This is a schematic diagram of the structure of the semi-automatic welding device for irregularly shaped tube sheets provided in this embodiment of the utility model.

[0030] 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.

[0031] Figure 3 This is a structural schematic diagram of the welding torch at various welding angles provided in this embodiment of the utility model.

[0032] The attached figures are labeled as follows: 1-bearing positioning block, 2-irregular tube positioning block, 3-rotating bearing, 4-fixed connecting rod, 5-welding torch, 61-spring connecting rod, 62-spring, 63-positioning bearing mounting block, and 64-positioning bearing. Detailed Implementation

[0033] 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.

[0034] 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.

[0035] 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.

[0036] This utility model discloses a semi-automatic welding device for irregularly shaped tube sheets, referenced... Figures 1 to 3 It includes a bearing positioning block 1, a shaped tube positioning block 2, a rotary bearing 3, a fixing link 4, a positioning assembly, a welding torch 5, a rotary motor (not shown), and a moving frame (not shown). The edge shape of the shaped tube positioning block 2 matches the edge shape of the shaped tube, and the end of the shaped tube positioning block 2 can extend into the shaped tube. The rotary bearing 3 is fixed at the center position of the first surface of the bearing positioning block 1. The fixing link 4 is fixed at the center of the rotary bearing 3, and the fixing link 4 can rotate relative to the rotary bearing 3.

[0037] The shaped tube positioning block 2 is vertically fixed to the second surface of the bearing positioning block 1 opposite to the first surface. One end of the positioning component is fixed to the fixed connecting rod 4, and the other end of the positioning component is elastically in contact with the side of the bearing positioning block 1. The positioning component can rotate around the side of the bearing positioning block 1 with the rotating bearing 3 as the center.

[0038] The welding torch 5 is slidably fixed on the positioning assembly. The height of the welding torch 5 on the positioning assembly and the angle between the welding torch 5 and the positioning assembly can be adjusted. The tip of the welding torch 5 is always close to and points towards the weld seam at the edge of the shaped tube. As the positioning assembly rotates around the bearing positioning block 1, the tip of the welding torch 5 rotates around the weld seam.

[0039] In one embodiment, the positioning assembly includes a spring link 61, a spring 62, a positioning bearing mounting block 63, and a positioning bearing 64. One end of the spring link 61 is vertically fixed to the fixed link 4. The positioning bearing mounting block 63 is movably sleeved on the spring link 61. The positioning bearing 64 is fixedly connected to the positioning bearing mounting block 63. The spring 62 is sleeved on the spring link 61. The first end of the spring 62 is fixedly connected to the fixed link 4, and the second end of the spring 62 is fixedly connected to the positioning bearing mounting block 63. The spring 62 is kept in a stretched state to keep the positioning bearing 64 tightly against the side of the bearing positioning block 1.

[0040] The positioning bearing 64 is pivotally connected to the positioning bearing mounting block 63, and the positioning bearing 64 and the bearing positioning block 1 are in side rolling contact.

[0041] The shaped tube positioning block 2 and the shaped tube are fitted with a small gap, and the end of the shaped tube positioning block 2 is chamfered to facilitate insertion into the shaped tube.

[0042] The welding torch 5 is fixed on the spring connecting rod 61. The height of the welding torch 5 on the spring connecting rod 61 and the angle between the welding torch 5 and the spring connecting rod 61 can be adjusted. As the positioning bearing 64 rotates around the side of the bearing positioning block 1, the welding torch 5 automatically adjusts its height on the spring connecting rod 61 and the angle between the welding torch 5 and the spring connecting rod 61, so that the tip of the welding torch 5 is always 1-2mm away from the weld at different angles.

[0043] The rotary motor is connected to the fixed connecting rod 4. The rotary motor drives the fixed connecting rod 4 to rotate, thereby driving the welding torch 5 to rotate around the weld seam.

[0044] The welding device is fixed on the movable frame, and the welding device can move up and down, left and right, and forward and backward with the movable frame.

[0045] The working principle of this invention is as follows: During operation, the welding device is first extended forward, and the angle of the shaped tube positioning block is adjusted to insert it into the shaped tube. A rotating motor drives the fixed connecting rod to rotate. At this time, the shaped tube positioning block and the bearing positioning block remain stationary, while the remaining components rotate under the drive of the motor. The positioning bearing, under the tension of the spring, adheres tightly to the side of the bearing positioning block and rolls along the side of the bearing positioning block, allowing the tip of the welding torch to move along the contour edge of the shaped tube. Because the edge shape of the shaped tube is an irregular shape with one end larger than the other, the corresponding edge of the bearing positioning block is also irregular. The welding torch automatically adjusts its height on the spring connecting rod and the angle between it and the spring connecting rod to ensure that the tip of the welding torch always faces the weld seam and maintains a distance of 1-2 mm. The adjustment of the welding torch height and angle can be controlled by a program or directly by manual control.

[0046] 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.

[0047] 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 bearing positioning blocks, shaped tube positioning blocks, rotary bearings, fixed connecting rods, positioning components, and welding torches. The edge shape of the shaped tube positioning block matches the edge shape of the shaped tube, and the end of the shaped tube positioning block can extend into the shaped tube. The rotary bearing is fixed at the center of the first surface of the bearing positioning block. The fixed connecting rod is fixed to the center of the rotary bearing, and the fixed connecting rod is rotatable relative to the rotary bearing. The shaped tube positioning block is vertically fixed to the second surface of the bearing positioning block opposite to the first surface. One end of the positioning component is fixed to the fixed connecting rod, and the other end of the positioning component elastically contacts the side of the bearing positioning block. The positioning component is capable of rotating around the rotating bearing along the side of the bearing positioning block. The welding torch is slidably fixed on the positioning assembly, and the welding torch can be movably adjusted in height on the positioning assembly, as well as in relation to the welding torch itself. The included angle of the positioning component, and the welding torch tip always being close to and pointing towards the weld seam at the edge of the shaped tube. As the positioning assembly rotates around the bearing positioning block, the tip of the welding torch rotates around the weld.

2. The semi-automatic welding device for irregularly shaped tube sheets according to claim 1, characterized in that, The positioning assembly includes a spring link, a spring, and... Positioning bearing mounting block and positioning bearing. One end of the spring link is vertically fixed to the fixed link. The positioning bearing mounting block is movably sleeved on the spring connecting rod. The positioning bearing is fixedly connected to the positioning bearing mounting block. The spring is sleeved on the spring connecting rod, the first end of the spring is fixedly connected to the fixed connecting rod, and the second end of the spring is connected to the... The positioning bearing mounting block is fixedly connected, and the spring is kept in a stretched state to keep the positioning bearing tightly against the side of the bearing positioning block.

3. The semi-automatic welding device for irregularly shaped tube sheets according to claim 2, characterized in that, The positioning bearing is pivotally connected to the positioning bearing. The bearing mounting block has a side rolling contact between the positioning bearing and the bearing positioning block.

4. The semi-automatic welding device for irregularly shaped tube sheets according to claim 1, characterized in that, The irregular tube positioning block and the small gap of the irregular tube In conjunction with this, the end of the shaped tube positioning block is chamfered to facilitate insertion into the shaped tube.

5. The semi-automatic welding device for irregularly shaped tube sheets according to claim 2, characterized in that, The welding torch is fixed to the spring connecting rod. The welding torch can be movably adjusted in height on the spring connecting rod and in the angle between the welding torch and the spring connecting rod, depending on the positioning. The bearing rotates around the side of the bearing positioning block, and the welding torch automatically adjusts its height on the spring connecting rod and the angle between it and the spring connecting rod. The angle ensures that the tip of the welding torch is always 1-2mm away from the weld at different angles.

6. The semi-automatic welding device for irregularly shaped tube sheets according to claim 1, characterized in that, It also includes a rotary motor, the rotary motor and The fixed connecting rod is connected to the rotary motor, which drives the fixed connecting rod to rotate, thereby causing the welding torch to rotate around the weld seam.

7. The semi-automatic welding device for irregularly shaped tube sheets according to claim 1, characterized in that, It also includes a movable frame, and the welding device is fixed. On the movable frame, the welding device can move up and down, left and right, and forward and backward.

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