Tubular pile welding device

Abstract

The invention discloses a tubular pile welding device, and relates to the technical field of tubular pile welding. Comprising a guide rail, an automatic walking trolley, a lifting mechanism, a clamping mechanism and a welding gun, the automatic walking trolley is hung on the guide rail, the lifting mechanism is arranged in the automatic walking trolley, a vertically-arranged mounting plate is arranged on the lifting mechanism, the clamping mechanism is arranged at the bottom of the mounting plate, and the welding gun is mounted on the clamping mechanism and located in the radial direction of a tubular pile; a control panel is arranged on the automatic walking trolley, the control panel is electrically connected with the automatic walking trolley and the lifting mechanism, the supporting mechanism comprises a supporting rod and a steel ball roller, the supporting rod is parallel to the welding gun, one end of the supporting rod is installed at the lower end of the installation plate, and the steel ball roller is installed at the other end of the supporting rod. And a steel ball of the steel ball roller is propped against the upper-section pipe pile. By arranging the supporting mechanism, the welding gun is effectively prevented from slightly shaking towards the inner side, and the welding stability is improved.

Description

Technical Field

[0001] The invention relates to the technical field of pipe pile welding, and in particular to a pipe pile welding device. Background Art

[0002] In the construction process of pipe piles, welding is required to connect the piles. The traditional method of connecting the piles is manual welding, which has low welding efficiency, uneven welding and low qualified rate. For this reason, some pipe pile welding devices have appeared on the market, which are composed of guide rails, automatic walking trolleys, lifting mechanisms, clamping mechanisms and welding guns. The guide rails are fixed on the pipe piles, the automatic walking trolleys are hung on the guide rails, the lifting mechanism is set on the automatic walking trolleys, the clamping mechanism is set on the mounting plate at the bottom of the lifting mechanism, and the welding gun is clamped by the clamping mechanism. The welding seam is welded by driving the welding gun to move by the automatic walking trolley, and the swing welding is realized by driving the welding gun up and down by the lifting mechanism. However, when the lifting mechanism drives the welding gun to move up and down, because the welding gun is suspended in the air, the welding gun is easy to shake slightly inward under the extrusion of the welding gun line, resulting in uneven welding depth and affecting the welding stability. Summary of the invention

[0003] The main purpose of the present invention is to provide a pipe pile welding device to solve the above problems.

[0004] To achieve the above-mentioned purpose, the present invention provides a pipe pile welding device, comprising a guide rail, an automatic walking trolley, a lifting mechanism, a clamping mechanism and a welding gun, the guide rail being installed on the upper section pipe pile, the automatic walking trolley being hung on the guide rail, the lifting mechanism being arranged in the automatic walking trolley, the lifting mechanism being provided with a vertically arranged mounting plate, the clamping mechanism being arranged at the bottom of the mounting plate, the welding gun being installed on the clamping mechanism and being located in the radial direction of the pipe pile, the end of the welding gun being directed to the gap between the upper section pipe pile and the lower section pipe pile; the automatic walking trolley being provided with a control panel, the control panel being electrically connected to the automatic walking trolley and the lifting mechanism, and also comprising a supporting mechanism, the supporting mechanism comprising a supporting rod and a steel ball roller, the supporting rod being parallel to the welding gun, one end of the supporting rod being installed at the lower end position of the mounting plate, the other end of the supporting rod being provided with a steel ball roller, the steel ball of the steel ball roller being in contact with the upper section pipe pile.

[0005] Furthermore, the support rod is a telescopic rod, including an outer sleeve and an inner pull rod that are slidably connected. The outer sleeve is fixed on the mounting plate, and the inner pull rod is fixedly connected to the steel ball roller. A spring is sleeved on the inner pull rod, one end of the spring abuts against the ball seat of the steel ball roller, and the other end abuts against an end of the outer sleeve away from the mounting plate.

[0006] Furthermore, it also includes a linear displacement sensor, which is arranged parallel to the support rod, one end of the linear displacement sensor is fixedly connected to the mounting plate, and the other end is fixedly connected to the ball seat of the steel ball roller; the clamping mechanism is connected to the mounting plate through a radial compensation mechanism; the linear displacement sensor and the radial compensation mechanism are both electrically connected to the control panel.

[0007] Furthermore, the radial compensation mechanism adopts an electric slide, the radial compensation mechanism is installed at the bottom of the mounting plate, and the clamping mechanism is installed on the slide of the radial compensation mechanism.

[0008] Furthermore, the lifting mechanism adopts an electric slide, and the mounting plate is installed on the slide of the lifting mechanism.

[0009] Furthermore, the guide rail is formed by splicing two semicircular rails.

[0010] The present invention has the following beneficial effects: The present invention effectively prevents the welding gun from slightly shaking inward by providing a supporting mechanism, thereby improving welding stability.

[0011] The present invention solves the problem of deformation interference by cooperating with a support mechanism, a linear displacement sensor and a radial compensation mechanism, so as to ensure that the distance between the welding gun and the gap remains unchanged and avoid the situation of uneven welding depth. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The figure is a schematic diagram of the application state of a pipe pile welding device of the present invention.

[0013] Figure 2 For the present invention Figure 1 Enlarged view of point A.

[0014] Among them, 1-upper section pipe pile; 2-lower section pipe pile; 3-guide rail; 4-automatic walking trolley; 5-mounting plate; 6-support mechanism; 7-radial compensation mechanism; 8-clamping mechanism; 9-welding gun; 61-outer sleeve; 62-inner pull rod; 63-spring; 64-steel ball roller; 65-linear displacement sensor. DETAILED DESCRIPTION

[0015] In order to achieve the above-mentioned purpose and effect, the technical means and structures adopted by the present invention are described in detail with reference to the accompanying drawings for the features and functions of the preferred embodiments of the present invention.

[0016] like Figure 1-Figure 2As shown, the present invention provides a pipe pile welding device, including a guide rail 3, an automatic walking trolley 4, a lifting mechanism, a supporting mechanism 6, a clamping mechanism 8 and a welding gun 9, wherein the guide rail 3 is installed on the upper pipe pile 1, the automatic walking trolley 4 is hung on the guide rail 3, the lifting mechanism is arranged in the automatic walking trolley 4, the lifting mechanism can adopt an electric slide, a vertically arranged mounting plate 5 is arranged on the slide of the lifting mechanism, the clamping mechanism 8 is arranged at the bottom of the mounting plate 5, the welding gun 9 is installed on the clamping mechanism 8 and is located in the radial direction of the pipe pile, and the end of the welding gun 9 points to the gap between the upper pipe pile 1 and the lower pipe pile 2; the supporting mechanism 6 includes a supporting rod and a steel ball roller 64, the supporting rod is parallel to the welding gun 9, one end of the supporting rod is installed at the lower end position of the mounting plate 5, and the other end of the supporting rod is installed with a steel ball roller 64, and the steel ball of the steel ball roller 64 abuts against the upper pipe pile 1; the automatic walking trolley 4 is provided with a control panel, and the control panel is electrically connected to the automatic walking trolley 4 and the lifting mechanism. When in use, the guide rail 3 is fixedly installed on the upper pipe pile 1. After the fixing is completed, the automatic walking trolley 4 is installed on the guide rail 3. At this time, the steel ball of the steel ball roller 64 is in contact with the upper pipe pile 1. Then the welding gun 9 is pre-installed on the clamping mechanism 8. The lifting mechanism is controlled by the control panel to adjust the lifting and lowering so that the welding gun 9 is aligned with the gap between the upper pipe pile 1 and the lower pipe pile 2. Then the distance between the welding gun 9 and the gap is adjusted to a suitable position. Finally, the welding gun 9 is locked by the clamping mechanism 8 to complete the position fixing; then the welding program is started through the control panel to start welding. During the welding process, the lifting mechanism drives the welding gun 9 to move up and down to realize swing welding, and the steel ball roller 64 moves along the wall of the upper pipe pile 1. Due to the existence of the support mechanism 6, the distance between the welding gun 9 and the gap can always be kept unchanged, which effectively prevents the welding gun 9 from shaking slightly inward and improves the welding stability.

[0017] In another embodiment, the support rod adopts a telescopic rod, including an outer sleeve 61 and an inner rod 62 that are slidably connected, the outer sleeve 61 is fixed on the mounting plate 5, and the inner rod 62 is fixedly connected to the steel ball roller 64; a spring 63 is sleeved on the inner rod 62, one end of the spring 63 abuts against the ball seat of the steel ball roller 64, and the other end abuts against the end of the outer sleeve 61 away from the mounting plate 5. A linear displacement sensor 65 is also included, which is arranged parallel to the support rod, one end of the linear displacement sensor 65 is fixedly connected to the mounting plate 5, and the other end is fixedly connected to the ball seat of the steel ball roller 64; the clamping mechanism 8 is connected to the mounting plate 5 through a radial compensation mechanism 7; as a preferred embodiment, the radial compensation mechanism 7 can adopt an electric slide, the radial compensation mechanism 7 is installed at the bottom of the mounting plate 5, and the clamping mechanism 8 is installed on the slide of the radial compensation mechanism 7; the linear displacement sensor 65 and the radial compensation mechanism 7 are both electrically connected to the control panel. During the welding process, as the heat continues to increase, the pipe pile welding point will produce slight thermal expansion deformation, resulting in an increase in the outer diameter; the support mechanism 6 of the present invention is in the form of a telescopic rod to adapt to this deformation, and measures the deformation through the linear displacement sensor 65, and transmits the data to the control panel, and then the control panel controls the radial compensation mechanism 7 to move, adjusts the position of the welding gun 9, and performs corresponding position compensation based on the deformation data to ensure that the distance between the welding gun 9 and the gap remains unchanged, avoiding the situation of uneven welding depth.

[0018] In another embodiment, the guide rail 3 is formed by splicing two semicircular rails, which facilitates the installation and disassembly of the guide rail 3.

[0019] The above are only preferred embodiments of the present invention, not all embodiments. Anyone should be aware that any structural changes made under the inspiration of the present invention, and any technical solutions that are the same or similar to the present invention, belong to the protection scope of the present invention.

Claims

1. A pipe pile welding device, comprising a guide rail, an automatic walking trolley, a lifting mechanism, a clamping mechanism and a welding gun, wherein the guide rail is installed on the upper pipe pile, the automatic walking trolley is hung on the guide rail, the lifting mechanism is arranged in the automatic walking trolley, a vertically arranged mounting plate is arranged on the lifting mechanism, the clamping mechanism is arranged at the bottom of the mounting plate, the welding gun is installed on the clamping mechanism and is located in the radial direction of the pipe pile, and the end of the welding gun points to the gap between the upper pipe pile and the lower pipe pile; the automatic walking trolley is provided with a control panel, and the control panel is electrically connected to the automatic walking trolley and the lifting mechanism, characterized in that It also includes a supporting mechanism, which includes a supporting rod and a steel ball roller. The supporting rod is parallel to the welding gun, one end of the supporting rod is installed at the lower end position of the mounting plate, and the other end of the supporting rod is installed with a steel ball roller, and the steel ball of the steel ball roller abuts against the upper section pipe pile.

2. A pipe pile welding device as claimed in claim 1, characterized in that: The support rod is a telescopic rod, including an outer sleeve and an inner pull rod that are slidably connected. The outer sleeve is fixed on the mounting plate, and the inner pull rod is fixedly connected to the steel ball roller. A spring is sleeved on the inner pull rod, one end of the spring abuts against the ball seat of the steel ball roller, and the other end abuts against the end of the outer sleeve away from the mounting plate.

3. A pipe pile welding device as claimed in claim 2, characterized in that: It also includes a linear displacement sensor, which is arranged parallel to the support rod, one end of the linear displacement sensor is fixedly connected to the mounting plate, and the other end is fixedly connected to the ball seat of the steel ball roller; the clamping mechanism is connected to the mounting plate through a radial compensation mechanism; the linear displacement sensor and the radial compensation mechanism are both electrically connected to the control panel.

4. A pipe pile welding device as claimed in claim 3, characterized in that: The radial compensation mechanism adopts an electric slide, the radial compensation mechanism is installed at the bottom of the mounting plate, and the clamping mechanism is installed on the slide of the radial compensation mechanism.

5. A pipe pile welding device as claimed in claim 1, characterized in that: The lifting mechanism adopts an electric slide, and the mounting plate is mounted on the slide of the lifting mechanism.

6. A pipe pile welding device as claimed in claim 1, characterized in that: The guide rail is formed by splicing two semicircular rails.

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