Steel pipe flange welding tooling

Abstract

The utility model relates to a kind of steel pipe flange welding tool, including rack, material rotating mechanism, material supporting mechanism and welding mechanism;Material rotating mechanism includes pivot, material rotating disc and first driving device;Material supporting mechanism includes material supporting plate, lifting plate and second driving device;Welding mechanism includes mounting bracket, two coarse adjustment mechanism, two fine adjustment mechanism, clamp and welding device;Coarse adjustment mechanism includes cylinder, coarse adjustment connecting frame and moving block;Fine adjustment mechanism includes adjusting screw rod and fine adjustment connecting frame;The orientation of welding device corresponds to welding groove.The utility model has the advantages that (1) welding mechanism is set to four, can simultaneously carry out welding treatment to the flange inner break and outer bevel of steel pipe two ends, improve welding speed;(2) material supporting mechanism can lift flange when flange is assembled, facilitate the stable assembly of flange.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe processing technology, and in particular to a welding fixture for steel pipe flanges. Background Technology

[0002] Steel pipes are used in fluid transport equipment and need to be assembled using flanges. To improve assembly efficiency, flanges are pre-welded to the ends of the steel pipes. However, the steel pipes used in large equipment are large in size, and the corresponding flanges are heavy, making flange assembly before welding difficult. Furthermore, during welding, the flanges at both ends of the steel pipe need to be welded manually in stages, which affects the flange welding efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide a welding fixture for steel pipe flanges, which can improve welding efficiency.

[0004] To achieve the above-mentioned utility model objectives, this utility model provides a steel pipe flange welding fixture, including a frame, a material transfer mechanism, a material support mechanism, and a welding mechanism;

[0005] Two material transfer mechanisms are provided above the frame. Each material transfer mechanism includes a rotating shaft, a material transfer disc, and a first driving device. The rotating shaft is connected to the top of the frame and is connected to the first driving device. The rotating shaft is provided with a plurality of material transfer discs.

[0006] Both ends of the frame are provided with material support mechanisms. The frame is provided with connecting beams. The material support mechanism includes a material support plate, a lifting plate, and a second drive device. The top of the material support plate is provided with a material support groove. A guide rail is provided between the lifting plate and the material support plate. The guide rail is connected to the connecting beam. The lifting plate is connected to the second drive device.

[0007] The welding mechanism is provided in a quantity of four, in pairs, with the two pairs of welding mechanisms respectively located at both ends of the frame; the welding mechanism includes a mounting bracket, two coarse adjustment mechanisms, two fine adjustment mechanisms, a clamp, and a welding device;

[0008] The coarse adjustment mechanism includes a cylinder, a coarse adjustment connecting frame, and a moving block. The cylinder is connected to the moving block through the coarse adjustment connecting frame. The two coarse adjustment mechanisms are divided into a first coarse adjustment mechanism and a second coarse adjustment mechanism. The coarse adjustment connecting frame of the first coarse adjustment mechanism is connected to the mounting bracket, and the coarse adjustment connecting frame of the second coarse adjustment mechanism is connected to the moving block of the first coarse adjustment mechanism. The first coarse adjustment mechanism and the second coarse adjustment mechanism are perpendicular to each other.

[0009] The fine-tuning mechanism includes an adjusting screw and a fine-tuning connecting frame. The adjusting screw is connected to the fine-tuning connecting frame. The two fine-tuning mechanisms are divided into a first fine-tuning mechanism and a second fine-tuning mechanism. The fine-tuning connecting frame of the first fine-tuning mechanism is connected to the moving block of the second coarse-tuning mechanism. The fine-tuning connecting frame of the second fine-tuning mechanism is connected to the adjusting screw of the first fine-tuning mechanism. The clamp is connected to the adjusting screw of the second fine-tuning mechanism.

[0010] The welding device is connected to the fixture, and the welding head of the welding device faces the corresponding welding bevel.

[0011] Preferably, the material tray has a "V" shaped structure.

[0012] As a further improvement of the utility model, the coarse adjustment mechanism also includes a guide rail assembly, and the moving block is connected to the corresponding coarse adjustment connecting frame through the guide rail assembly.

[0013] As a further improvement of the utility model, the mounting bracket is provided with a first adjustment groove, the coarse adjustment connecting frame of the first coarse adjustment mechanism is provided with a second adjustment groove, and the first fastener detachably connects the coarse adjustment connecting frame to the mounting bracket through the first adjustment groove and the second adjustment groove.

[0014] This utility model discloses a steel pipe flange welding fixture. The steel pipe is placed between two rotating discs on both sides, and the flange is fitted onto the end of the steel pipe. The material support mechanism plays a supporting role during flange assembly. Subsequently, the coarse adjustment mechanism and the fine adjustment mechanism adjust each welding device to a suitable welding position. The rotating discs rotate continuously under the action of the first drive device, driving the steel pipe to rotate, and the welding device welds the connection between the flange and the steel pipe.

[0015] The advantages of this utility model for welding steel pipe flanges compared to existing technologies are as follows:

[0016] (1) The welding mechanism is set to four, which can simultaneously weld the inner and outer bevels of the flanges at both ends of the steel pipe, thereby improving the welding speed;

[0017] (2) The material support mechanism can lift the flange during flange assembly, which facilitates the smooth assembly of the flange. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a steel pipe flange welding fixture structure according to the present invention;

[0019] Figure 2 This is a schematic diagram of the welding position;

[0020] Figure 3 This is a schematic diagram of the material support mechanism.

[0021] Figure 4 This is a schematic diagram of the welding mechanism. Detailed Implementation

[0022] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0023] like Figure 1-2 As shown, this utility model discloses a steel pipe flange welding fixture, which includes a frame 1, a material transfer mechanism 2, a material support mechanism 3, and a welding mechanism 4.

[0024] Two material transfer mechanisms 2 are provided above the frame 1. Each material transfer mechanism 2 includes a rotating shaft 21, a material transfer disc 22, and a first drive device 23. The rotating shaft 21 is connected to the top of the frame 1 and is connected to the first drive device 23. The rotating shaft 21 is provided with several material transfer discs 22. The steel pipe 5 lies flat on each material transfer disc 22. The rotating shaft 21 rotates continuously under the drive of the first drive device 23 (which can be an existing motor), causing the steel pipe 5 to rotate.

[0025] like Figure 3 As shown, both ends of the frame 1 are provided with material support mechanisms 3. The frame 1 is provided with a connecting beam 11. The material support mechanism 3 includes a material support plate 31, a lifting plate 32, and a second drive device 33. The top of the material support plate 31 is provided with a material support groove 35. A guide rail 34 is provided between the lifting plate 32 and the material support plate 31. The guide rail 34 is connected to the connecting beam 11. The lifting plate 32 is connected to the second drive device 33.

[0026] When flange 6 is fitted onto the end of steel pipe 5, support plate 31 supports flange 6, facilitating its assembly. Second drive device 33 can be a hydraulic cylinder. Lifting plate 32 rises and falls under the action of second drive device 33, causing support plate 31 to rise and fall accordingly. Guide rail 34 acts as a guide, preventing misalignment of support plate 31. When welding is required, support plate 31 descends, moving away from flange 6 to avoid interfering with the rotation of steel pipe 5.

[0027] The material support groove 35 is preferably a "V" shaped structure, which can not only position the flange 6 and prevent the flange 6 from sliding, but also adapt to flanges 6 of various sizes.

[0028] The welding mechanism 4 consists of four units, arranged in pairs, with the two pairs positioned at opposite ends of the frame 1; for example... Figure 4 As shown, the welding mechanism 4 includes a mounting bracket 41, two coarse adjustment mechanisms 43, two fine adjustment mechanisms 44, a clamp 45, and a welding device 42;

[0029] The coarse adjustment mechanism 43 includes a cylinder 431, a coarse adjustment connecting frame 432, and a moving block 434. The cylinder 431 is connected to the moving block 434 through the coarse adjustment connecting frame 432. The two coarse adjustment mechanisms 43 are divided into a first coarse adjustment mechanism and a second coarse adjustment mechanism. The coarse adjustment connecting frame 432 of the first coarse adjustment mechanism is connected to the mounting bracket 41, and the coarse adjustment connecting frame 432 of the second coarse adjustment mechanism is connected to the moving block 434 of the first coarse adjustment mechanism. The first coarse adjustment mechanism and the second coarse adjustment mechanism are perpendicular to each other.

[0030] The fine adjustment mechanism 44 includes an adjusting screw 441 and a fine adjustment connecting frame 442. The adjusting screw 441 is connected to the fine adjustment connecting frame 442. The two fine adjustment mechanisms 44 are divided into a first fine adjustment mechanism and a second fine adjustment mechanism. The fine adjustment connecting frame 442 of the first fine adjustment mechanism is connected to the moving block 434 of the second coarse adjustment mechanism. The fine adjustment connecting frame 442 of the second fine adjustment mechanism is connected to the adjusting screw 441 of the first fine adjustment mechanism. The clamp 45 is connected to the adjusting screw 441 of the second fine adjustment mechanism.

[0031] The welding device 42 is connected to the fixture 45, and the welding head of the welding device 42 faces the corresponding welding groove.

[0032] Before assembling the steel pipe 5 and flange 6, in order to avoid interference and collision between the welding device 42 and the flange 6, the two coarse adjustment mechanisms 43 adjust the position of the welding device 42 in the longitudinal and transverse directions through the cylinder 431, so that the welding device 42 is away from the steel pipe 5 and flange 6. After the steel pipe 5 and flange 6 are assembled, the two coarse adjustment mechanisms 43 reset the welding device 42, and the position of the welding device 42 in the longitudinal and transverse directions can be finely adjusted by the adjusting screw 441 of the fine adjustment mechanism 44 to ensure that the welding head is accurately oriented towards the welding bevel position.

[0033] The coarse adjustment mechanism 43 also includes a guide rail assembly 433, and the movable block 434 is connected to the corresponding coarse adjustment connecting frame 432 through the guide rail assembly 433. The guide rail assembly 433 can be an existing combination of a straight rail and a slider. The movable block 434 is connected to the straight rail through the slider, which limits the movement of the movable block 434.

[0034] The mounting bracket 41 is provided with a first adjustment groove 411, and the coarse adjustment connecting frame 432 of the first coarse adjustment mechanism is provided with a second adjustment groove 4321. The first fastener 412 detachably connects the coarse adjustment connecting frame 432 to the mounting bracket 41 through the first adjustment groove 411 and the second adjustment groove 4321. This facilitates the disassembly, assembly, and adjustment of the first coarse adjustment mechanism. According to the welding position, the tilt angle and installation position of the first coarse adjustment mechanism can be adjusted to ensure that the welding head of the welding device 42 can be accurately aligned with the welding bevel position.

[0035] This utility model discloses a steel pipe flange welding fixture. The steel pipe 5 is placed between two rotating material trays 22 on both sides, and the flange 6 is fitted onto the end of the steel pipe 5. The material support mechanism 3 plays a supporting role when the flange 6 is assembled. Then, the coarse adjustment mechanism 43 and the fine adjustment mechanism 44 adjust each welding device 42 to a suitable welding position. The rotating material tray 22 rotates continuously under the action of the first driving device 23, driving the steel pipe 5 to rotate. The welding device welds the connection position between the flange 6 and the steel pipe 5.

[0036] The preferred embodiments of this utility model have been described in detail above, but this utility model is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of this utility model, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A welding fixture for steel pipe flanges, characterized in that, It includes a frame, a material transfer mechanism, a material support mechanism, and a welding mechanism; Two material transfer mechanisms are provided above the frame. Each material transfer mechanism includes a rotating shaft, a material transfer disc, and a first driving device. The rotating shaft is connected to the top of the frame and is connected to the first driving device. The rotating shaft is provided with a plurality of material transfer discs. Both ends of the frame are provided with material support mechanisms. The frame is provided with connecting beams. The material support mechanism includes a material support plate, a lifting plate, and a second drive device. The top of the material support plate is provided with a material support groove. A guide rail is provided between the lifting plate and the material support plate. The guide rail is connected to the connecting beam. The lifting plate is connected to the second drive device. The welding mechanism is provided in a quantity of four, in pairs, with the two pairs of welding mechanisms respectively located at both ends of the frame; the welding mechanism includes a mounting bracket, two coarse adjustment mechanisms, two fine adjustment mechanisms, a clamp, and a welding device; The coarse adjustment mechanism includes a cylinder, a coarse adjustment connecting frame, and a moving block. The cylinder is connected to the moving block through the coarse adjustment connecting frame. The two coarse adjustment mechanisms are divided into a first coarse adjustment mechanism and a second coarse adjustment mechanism. The coarse adjustment connecting frame of the first coarse adjustment mechanism is connected to the mounting bracket, and the coarse adjustment connecting frame of the second coarse adjustment mechanism is connected to the moving block of the first coarse adjustment mechanism. The first coarse adjustment mechanism and the second coarse adjustment mechanism are perpendicular to each other. The fine-tuning mechanism includes an adjusting screw and a fine-tuning connecting frame. The adjusting screw is connected to the fine-tuning connecting frame. The two fine-tuning mechanisms are divided into a first fine-tuning mechanism and a second fine-tuning mechanism. The fine-tuning connecting frame of the first fine-tuning mechanism is connected to the moving block of the second coarse-tuning mechanism. The fine-tuning connecting frame of the second fine-tuning mechanism is connected to the adjusting screw of the first fine-tuning mechanism. The clamp is connected to the adjusting screw of the second fine-tuning mechanism. The welding device is connected to the fixture, and the welding head of the welding device faces the corresponding welding bevel.

2. The steel pipe flange welding fixture as described in claim 1, characterized in that, The material tray has a "V" shaped structure.

3. The steel pipe flange welding fixture as described in claim 1, characterized in that, The coarse adjustment mechanism also includes a guide rail assembly, and the moving block is connected to the corresponding coarse adjustment connecting frame through the guide rail assembly.

4. The steel pipe flange welding fixture as described in claim 1, characterized in that, The mounting bracket is provided with a first adjustment groove, and the coarse adjustment connecting frame of the first coarse adjustment mechanism is provided with a second adjustment groove. The first fastener detachably connects the coarse adjustment connecting frame to the mounting bracket through the first adjustment groove and the second adjustment groove.

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