An integrated welding equipment for pipe flanges and end caps.

Abstract

An integrated welding device for pipe flanges and end caps includes a frame, on which an automatic welding unit is mounted. The automatic welding unit includes a frame and a CNC three-axis system mounted on the frame. The CNC three-axis system refers to three-dimensional CNC X-axis, CNC Y-axis, and CNC Z-axis. A rotary axis is mounted at the end of the CNC three-axis system. A welding torch is fixedly connected to the rotary axis. Two three-jaw chucks along the X-axis are fixedly mounted on the frame. Both three-jaw chucks are rotatable chucks driven by motors, and the line connecting the centers of the two three-jaw chucks is parallel to the X-axis. This welding method can reduce the labor intensity of welding workers and improve work efficiency.

Description

Technical Field

[0001] This utility model relates to welding devices, and in particular to a welding device for pipe flanges and end caps, belonging to the technical field of welding equipment. Background Technology

[0002] Welding flanges and end caps onto pipe fittings is a common welding operation. These welded items are typically numerous and often involve batch processing. Currently, welding flanges to pipe ends is generally done manually, either by manually spot-welding the flange and fitting together and then using CNC automated welding equipment with coordinate recognition detection. Both methods require skilled welders. Due to the shortage of welders and associated costs, enabling flange-to-pipe welding without specialized welding skills would reduce skill requirements and lower costs. For welding end caps onto pipe fittings, due to the varying shapes of the end caps, manual welding is currently used. This method is inefficient and physically demanding for welders. Summary of the Invention

[0003] The purpose of this invention is to overcome the aforementioned problems existing in the welding of flanges and end caps on existing pipe fittings, and to provide an integrated welding device for pipe flanges and end caps.

[0004] To achieve the purpose of this utility model, the following technical solution is adopted: An integrated welding equipment for pipe flanges and end caps includes a frame, on which an automatic welding device is installed. The automatic welding device includes a frame, on which a CNC three-axis system is installed. The CNC three-axis system refers to a three-dimensional CNC X-axis, CNC Y-axis, and CNC Z-axis. A rotary axis is installed at the end of the CNC three-axis system. A welding torch is fixedly connected to the rotary axis. Two three-jaw chucks along the X-axis are fixedly installed on the frame. Both three-jaw chucks are rotatable chucks driven by motors, and the center line connecting the two three-jaw chucks is parallel to the X-axis.

[0005] Furthermore, a support mechanism is provided on the outside of the frame. The support mechanism includes a base, on which a lifting mechanism is fixedly connected. A support seat is fixedly connected to the upper end of the lifting mechanism. The support seat is a C-shaped seat with its opening facing upward. Multiple pairs of corresponding indexing grooves are opened on the inner wall of the C-shaped seat. A roller mechanism is provided in one pair of indexing grooves. The roller mechanism includes a roller shaft. The roller is rotatably mounted on the roller shaft, and both ends of the roller shaft are located in the indexing groove.

[0006] Furthermore, a reversible rotating tip mechanism is installed between the two three-jaw chucks. The reversible rotating tip mechanism includes a fixed base, and a rotating base is hinged to the fixed base via a fixed-angle folding hinge. The rotating tip is rotatably mounted on the rotating base, and the rotating base is rotated in the up-down direction along the X-axis.

[0007] The positive and beneficial technical effects of this utility model are as follows: When welding pipe flanges, this welding equipment only requires manual loading and unloading, eliminating the need for workers with manual welding skills. When welding the end cap, workers with manual welding skills only need to spot weld the end cap to the pipe fitting first, and the remaining welding process can be completed by this equipment, reducing the labor intensity of welding workers and improving work efficiency. The specific implementation method will be described in detail below. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the overall design of this utility model.

[0009] Figure 2 This is a schematic diagram of the upper part of the support mechanism.

[0010] Figure 3 This is a schematic diagram of a reversible rotating tip mechanism. Detailed Implementation

[0011] To more fully explain the implementation of this utility model, implementation examples are provided. These implementation examples are merely illustrative of this utility model and do not limit its scope.

[0012] The present invention will be further explained in detail with reference to the accompanying drawings, in which the following references are made: 1: frame; 2: X-axis; 3: Y-axis; 4: Z-axis; 5: rotation axis; 6: three-jaw chuck A; 7: three-jaw chuck B; 8: support mechanism; 9: reversible rotating center mechanism; 10: pipe fitting; 81: base; 82: screw jack; 83: C-shaped seat; 84: indexing groove; 85: roller; 86: roller shaft; 91: fixed seat; 92: rotating seat; 93: rotating center; 94: hinge.

[0013] In this invention, the automatic welding device is existing equipment. Current automatic welding devices have a CNC three-axis system plus a rotary axis (A-axis). The rotary axis is driven by a motor to rotate the welding torch. The equipment has its own three-dimensional coordinate system, which can identify the coordinates of the welding start point. This equipment does not improve upon the automatic welding device. The motor-driven rotatable three-jaw chuck is commercially available, such as the Jinan Benyuan Welding Three-Jaw Chuck.

[0014] As shown in the attached figure, an integrated welding equipment for pipe flanges and end caps includes a frame 1, on which an automatic welding device is installed. The automatic welding device includes the frame 1, on which a CNC three-axis system is installed. The CNC three-axis system refers to a three-dimensional CNC X-axis 2, CNC Y-axis 3, and CNC Z-axis 4. A rotary axis 5 is installed at the end of the CNC three-axis system. The welding torch is fixedly connected to the rotary axis. Two three-jaw chucks along the X-axis are fixedly installed on the frame. Both three-jaw chucks are rotatable chucks driven by motors. The center line connecting the two three-jaw chucks is parallel to the X-axis. In the figure, the two three-jaw chucks are three-jaw chuck A6 and three-jaw chuck B7. A support mechanism is provided on the outside of the frame for supporting long workpieces. The support mechanism includes a base 81, on which a lifting mechanism is fixedly connected. A support seat is fixedly connected to the upper end of the lifting mechanism. In this invention, the lifting mechanism is a screw jack 82, but other mechanisms can also be used, such as lifting sleeves. The support seat has an upward-facing C-shaped seat 83 with multiple pairs of corresponding indexing grooves 84 on its inner wall. Two of a pair of indexing grooves are at the same horizontal level. A roller mechanism is provided in each pair of indexing grooves. The roller mechanism includes a roller shaft 86, and rollers 85 are rotatably mounted on the roller shaft. Both ends of the roller shaft are located in the indexing grooves. The roller shaft can be movably placed within the roller grooves. By placing the roller shaft in different roller grooves, it can accommodate the operation of pipes with different diameters.

[0015] A reversible rotating tip mechanism 9 is installed between two three-jaw chucks. The reversible rotating tip mechanism includes a fixed base 91, and a rotating base is hinged to the fixed base by a fixed angle folding hinge 94. The fixed angle folding hinge can be a 90-degree fixed angle hinge. The rotating tip 93 is rotatably mounted on the rotating base. The rotating base is flipped in the up-down direction along the X-axis.

[0016] When welding pipe flanges using this equipment, first place the flange in the three-jaw chuck A and clamp it. Then, insert the pipe fitting through the center hole on the three-jaw chuck B into the center countersunk hole of the flange. Clamp the three-jaw chuck B and manually drive the welding torch of the welding equipment to the welding point (at this time, the automatic welding device can memorize the welding start point coordinates of this type of pipe fitting, and the next workpiece can automatically reach this position, which is the existing function of the existing automatic welding / welding device). Start the motor of the three-jaw chuck to make it rotate the workpiece, start the automatic welding device to weld, and the pipe fitting rotates 360 degrees to complete the welding. After welding, remove the workpiece, and then repeat the process of loading, clamping, and welding. When the pipe fitting is long, it can be supported by placing it on the support mechanism, and the height of the support mechanism can be adjusted by the lifting mechanism.

[0017] When welding the end cap, the rotating base is erected, with the axis of the center point aligned with the axis of the three-jaw chuck B. The welding technician first tack welds the end cap to the pipe fitting, then passes it through the center hole of the three-jaw chuck B, with the end cap resting on the center point. The three-jaw chuck B is then clamped. The welding torch is moved to the welding position, and the motor of the three-jaw chuck B is started to rotate the workpiece. The automatic welding device is then activated to perform the welding. The pipe fitting rotates 360 degrees to complete the welding. After welding, the workpiece is removed, and the process of loading, clamping, and welding is repeated. For longer pipe fittings, they can be supported by placing them on a support mechanism.

[0018] After a detailed description of the embodiments of this utility model, those skilled in the art will clearly understand that various changes and modifications can be made without departing from the scope and spirit of the above-mentioned patent applications. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this utility model shall fall within the scope of the technical solution of this utility model, and this utility model is not limited to the embodiments of the examples given in the specification.

Claims

1. A kind of integrated welding equipment for pipe flange, head, comprising rack, automatic welding device is installed on rack, the automatic welding device includes rack, numerical control three-axis system is installed on rack, the numerical control three-axis system refers to the numerical control X axis, numerical control Y axis, numerical control Z axis in three-dimensional direction, rotating shaft is installed at the end of numerical control three-axis system, and welding torch is fixedly connected on rotating shaft, it is characterized by: Two three-jaw chucks along the X-axis are fixedly mounted on the frame. Both three-jaw chucks are rotatable chucks driven by motors, and the line connecting the centers of the two three-jaw chucks is parallel to the X-axis.

2. The integrated welding equipment for pipe flanges and end caps according to claim 1, characterized in that: A support mechanism is provided on the outside of the frame. The support mechanism includes a base, and a lifting mechanism is fixedly connected to the base. A support seat is fixedly connected to the upper end of the lifting mechanism. The support seat is a C-shaped seat with its opening facing upward. Multiple pairs of corresponding indexing grooves are opened on the inner wall of the C-shaped seat. A roller mechanism is provided in one pair of indexing grooves. The roller mechanism includes a roller shaft. The roller is rotatably mounted on the roller shaft, and both ends of the roller shaft are located in the indexing groove.

3. The integrated welding equipment for pipe flanges and end caps according to claim 1, characterized in that: A reversible rotating tip mechanism is installed between two three-jaw chucks. The reversible rotating tip mechanism includes a fixed base, and a rotating base is hinged to the fixed base by a hinge that can be folded at a fixed angle. The rotating tip is rotatably mounted on the rotating base, and the rotating base is rotated in the up-down direction along the X-axis.

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