Auxiliary positioning device for flange plate welding

Abstract

The utility model relates to the technical field of welding, and discloses an auxiliary positioning device for flange welding, which comprises a workbench, the top end of the workbench is rotatably connected with a rotary table, the top end of the rotary table is fixedly connected with a plurality of electric sliding rails, and the top ends of the electric sliding rails are slidably connected with first sliding blocks. First connecting blocks are fixedly connected to the inward ends of the first sliding blocks correspondingly, arc-shaped clamping plates are fixedly connected to the inward ends of the first connecting blocks correspondingly, clamping rods are connected to the top ends of the first sliding blocks through reset assemblies correspondingly, anti-skid pieces are fixedly connected to the inward ends of the clamping rods correspondingly, and flange plate bodies are arranged at the inward ends of the anti-skid pieces correspondingly. A supporting assembly is arranged at the bottom end of the workbench. According to the flange plate clamping device, the first sliding block is driven by the electric sliding rail to move so that the anti-skid pieces on the clamping rods can make contact with the flange plate body in advance to clamp the flange plate body, the arc-shaped clamping plates can make contact with the pipe body to clamp and fix the pipe body in the continuous moving process of the first sliding block, and therefore the flange plate body and the pipe body cannot shake due to a gap in the rotating process.

Description

Technical Field

[0001] The utility model relates to the technical field of welding, in particular to an auxiliary positioning device for flange welding. Background Art

[0002] Flange, also known as flange or flange, is a part that connects shafts to each other. It is used to connect pipe ends and is also used in the inlet and outlet of equipment. The connection method is generally fastened by bolts, which can achieve the function of sealing and firm connection of pipes, pipe fittings and equipment. Since it is often used in conjunction with pipe fittings, flanges are usually welded directly to pipe fittings for use.

[0003] A search revealed that announcement number CN215545695U discloses auxiliary equipment for facilitating the welding of stainless steel flange adapters, including a rotating tray, a welding device, and an operating table. The rotating tray includes a meshing driving gear and a driven gear, a motor that drives the driving gear, and a bearing that supports the driven gear. The flange and pipe to be welded can be placed in a limiting hole on the driven gear. The positioning bracket in the welding device is adjusted to precisely position the welding gun head so that the welding gun head is aligned with the contact axis between the flange and the pipe. The motor drives the gears, thereby driving the flange and pipe to achieve welding. This can prevent the weight of the pipe and flange from affecting the welding quality, thereby improving the welding effect.

[0004] Based on the above patent, its background technology mentioned that when welding flange conversion joints, most of the time, the flanges and pipe fittings are put on a horizontally set mold. The flanges and pipe fittings have a certain weight, especially the flanges and pipe fittings made of stainless steel, whose surfaces are very smooth. After being put on the mold, the inner circumference of the flanges and pipe fittings in contact with the mold has a certain gap due to their own weight. During the welding process, the flanges and pipe fittings will rotate driven by the rotation of the mold. Due to the existence of the gap, it is easy to cause the flanges or pipe fittings to shake during the rotation process, which will cause the welding arc to deviate and affect the welding firmness. In this regard, in response to this technical problem, the present application proposes an auxiliary positioning device for flange welding. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose an auxiliary positioning device for flange welding. The electric slide rail drives the slider to move so that the anti-slip sheet on the clamping rod first contacts the flange body to clamp it. During the continuous movement of the slider, the arc-shaped clamping plate will also contact the tube body to clamp it, so that the flange body and the tube body will not shake due to the gap during rotation.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] An auxiliary positioning device for flange welding comprises a workbench, the top of the workbench is rotatably connected to a turntable, the top of the turntable is fixedly connected to a plurality of electric slide rails, the tops of the electric slide rails are slidably connected to a slider, the inward end of the slider is fixedly connected to a connecting block, the inward end of the connecting block is fixedly connected to an arc-shaped clamping plate, the top of the slider is connected to a clamping rod through a reset assembly, the inward end of the clamping rod is fixedly connected to an anti-slip sheet, the inward end of the anti-slip sheet is provided with a flange body, and the bottom end of the workbench is provided with a support assembly.

[0008] Furthermore, a second through hole is opened in the middle of the top of the workbench, and a control panel is provided on the left side of the top of the workbench.

[0009] Furthermore, a first through hole is provided in the middle of the top end of the turntable corresponding to the upper side of the second through hole, and a handle is fixedly connected to the outer wall of the turntable.

[0010] Furthermore, the reset assembly includes a fixed block fixedly connected to the top of slider one, a spring fixedly connected to one side of the inner wall of the fixed block, the other end of the spring fixedly connected to slider two, and the bottom end of the clamping rod fixedly connected to the top of slider two.

[0011] Furthermore, a telescopic rod is fixedly connected to the inside of the corresponding spring on one side of the inner wall of the fixed block, the other end of the telescopic rod is fixedly connected to the outward end of the second slider, and the outer walls of the second slider are slidably connected to the inner wall of the fixed block.

[0012] Furthermore, the support assembly includes two electric push rods fixedly connected at the bottom end of the workbench, and the driving ends of the electric push rods are fixedly connected to the support plate.

[0013] Furthermore, a tube body is provided at the top of the support plate, and the outer wall of the tube body is provided on the inner wall of the first through hole and the second through hole.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, the electric slide rail drives the slider to move so that the anti-slip sheet on the clamping rod first contacts the flange body to clamp it. During the continuous movement of the slider, the arc-shaped clamping plate will also contact the tube body to clamp it, so that the flange body and the tube body will not shake due to the gap during the rotation process.

[0016] 2. In the present invention, the height of the support plate can be adjusted according to the length of the tube body by controlling the electric push rod through the control panel to control the length of the top end of the tube body extending out of the first through hole, making it easier for the operator to put the flange body on the upper side of the outer wall of the tube body and for subsequent welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional diagram of an auxiliary positioning device for flange welding proposed by the present invention;

[0018] Figure 2 This is a cross-sectional view of a workbench in an auxiliary positioning device for flange welding proposed in the present invention;

[0019] Figure 3 The utility model is a cross-sectional view of a fixing block in an auxiliary positioning device for flange welding proposed by the utility model.

[0020] Legend:

[0021] 1. Workbench; 2. Handle; 3. Turntable; 4. Flange; 5. Tube; 6. Control panel; 7. Electric slide rail; 8. Slider 1; 9. First through hole; 10. Second through hole; 11. Electric push rod; 12. Support plate; 13. Connecting block 1; 14. Arc clamping plate; 15. Fixed block; 16. Spring; 17. Telescopic rod; 18. Slider 2; 19. Clamping rod; 20. Anti-slip sheet. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Reference Figure 1-3, The utility model provides an embodiment: an auxiliary positioning device for flange welding, comprising a workbench 1, a second through hole 10 is opened in the middle of the top of the workbench 1, a control panel 6 is set on the left side of the top of the workbench 1, a turntable 3 is rotatably connected to the top of the workbench 1, a first through hole 9 is opened on the upper side of the middle of the top of the turntable 3 corresponding to the second through hole 10, a handle 2 is fixedly connected to the outer wall of the turntable 3, a plurality of electric slide rails 7 are fixedly connected to the top of the turntable 3, the top of the electric slide rail 7 are all slidably connected to a slider 8, the inner end of the slider 8 is fixedly connected to a connecting block 13, the inner end of the connecting block 13 is fixedly connected to an arc splint 14, the top of the slider 8 The ends are connected with a clamping rod 19 through a reset assembly. The reset assembly includes a fixed block 15 fixedly connected to the top of the slider 1 8, one side of the inner wall of the fixed block 15 is fixedly connected to a spring 16, and the other end of the spring 16 is fixedly connected to the slider 2 18. The bottom end of the clamping rod 19 is fixedly connected to the top of the slider 2 18, and the inner side of the fixed block 15 is fixedly connected to the corresponding spring 16. The other end of the telescopic rod 17 is fixedly connected to the outward end of the slider 2 18. The outer wall of the slider 2 18 is slidably connected to the inner wall of the fixed block 15. The inward end of the clamping rod 19 is fixedly connected to an anti-slip sheet 20, and the inward end of the anti-slip sheet 20 is provided with a flange body 4;

[0024] Specifically, the pipe body 5 for welding is placed in the first through hole 9, and the flange body 4 is placed at the top of the pipe body 5 where welding is required. Then, the electric slide rail 7 is controlled by the control panel 6 to drive the sliding rod of the slider 18, so that the arc-shaped clamping plate 14 is continuously close to the pipe body 5 to clamp and fix it. In the process of the arc-shaped clamping plate 14 approaching the pipe body 5, the clamping rod 19 at the top of the slider 18 will first contact the flange body 4, and clamp the flange body 4 under the action of the movement of the slider 18. At this time, the clamping rod 19 will drive the slider 2 18 to squeeze the spring 16 and shrink the telescopic rod 17, so that after the slider 18 stops moving, the clamping rod 19 fixes the flange body 4 under the action of the accumulated elastic force of the spring 16. The anti-slip sheet 20 on the clamping rod 19 can increase the friction with the flange body 4 during clamping to prevent it from falling.

[0025] A support assembly is provided at the bottom end of the workbench 1. The support assembly includes two electric push rods 11 fixedly connected at the bottom end of the workbench 1. The driving end of the electric push rod 11 is fixedly connected to a support plate 12. The top end of the support plate 12 is provided with a tube body 5. The outer wall of the tube body 5 is provided on the inner wall of the first through hole 9 and the second through hole 10;

[0026] Specifically, after the tube body 5 passes through the first through hole 9 and the second through hole 10, its bottom end is placed on the surface of the support plate 12. Then, the electric push rod 11 can be controlled to adjust the height of the support plate 12 according to the length of the tube body 5, so that the height at which the tube body 5 is exposed on the top of the workbench 1 is convenient for the operator to place the flange body 4 for clamping and is conducive to welding. After the clamping is completed, the electric push rod 11 is controlled to drive the support plate 12 to descend a certain distance, so that when the operator rotates the turntable 3 through the handle 2 for welding, the bottom end of the tube body 5 will not repeatedly rub against the top of the support plate 12 and cause wear.

[0027] Working principle: The pipe body 5 to be welded is passed through the first through hole 9 and the second through hole 10 and placed on the top of the support plate 12. Then, the control panel 6 controls the electric push rod 11 to adjust the height of the support plate 12 according to the length of the pipe body 5 to control the length of the top of the pipe body 5 extending out of the first through hole 9 for subsequent welding. Then, the flange body 4 is sleeved on the upper side of the outer wall of the pipe body 5 where welding is required. The control panel 6 controls the electric slide rail 7 to drive the slider 18 to move and drive the anti-slip sheet 20 on the clamping rod 19 to contact the flange body 4 first to clamp it, and make the slider 2 18 slide inside the fixed block 15 and continuously squeeze the spring 16 to increase the clamping force. The telescopic rod 17 inside the spring 16 can ensure that the spring 16 will not bend when squeezing the spring 16. During the continuous movement of the slider 18, the arc-shaped clamping plate 14 will also contact the pipe body 5 to clamp it. At this time, the electric slide rail 7 stops working and restarts the electric push rod 11 to lower the support plate 12 to a certain height. Then the operator can weld the flange body 4 and the pipe body 5, and can adjust the welding position by rotating the turntable 3 by the handle 2.

[0028] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An auxiliary positioning device for flange welding, characterized in that: The utility model comprises a workbench (1), wherein the top of the workbench (1) is rotatably connected to a turntable (3), the top of the turntable (3) is fixedly connected to a plurality of electric slide rails (7), the tops of the electric slide rails (7) are all slidably connected to a slider (8), the inward end of the slider (8) is fixedly connected to a connecting block (13), the inward end of the connecting block (13) is fixedly connected to an arc-shaped clamping plate (14), the top of the slider (8) is connected to a clamping rod (19) through a reset assembly, the inward end of the clamping rod (19) is fixedly connected to an anti-slip sheet (20), the inward end of the anti-slip sheet (20) is provided with a flange body (4), and the bottom end of the workbench (1) is provided with a support assembly.

2. The auxiliary positioning device for flange welding according to claim 1, characterized in that: A second through hole (10) is provided in the middle of the top of the workbench (1), and a control panel (6) is provided on the left side of the top of the workbench (1).

3. The auxiliary positioning device for flange welding according to claim 1, characterized in that: A first through hole (9) is provided on the upper side of the middle portion of the top end of the turntable (3) corresponding to the second through hole (10), and a handle (2) is fixedly connected to the outer wall of the turntable (3).

4. The auxiliary positioning device for flange welding according to claim 1, characterized in that: The reset assembly includes a fixed block (15) fixedly connected to the top of the slider (8), a spring (16) fixedly connected to one side of the inner wall of the fixed block (15), the other end of the spring (16) fixedly connected to the slider (18), and the bottom end of the clamping rod (19) fixedly connected to the top of the slider (18).

5. The auxiliary positioning device for flange welding according to claim 4, characterized in that: A telescopic rod (17) is fixedly connected to the interior of the corresponding spring (16) on one side of the inner wall of the fixed block (15), and the other end of the telescopic rod (17) is fixedly connected to the outward end of the second slider (18), and the outer wall of the second slider (18) is slidably connected to the inner wall of the fixed block (15).

6. The auxiliary positioning device for flange welding according to claim 1, characterized in that: The support assembly comprises two electric push rods (11) fixedly connected at the bottom end of the workbench (1), and the driving ends of the electric push rods (11) are fixedly connected to a support plate (12).

7. The auxiliary positioning device for flange welding according to claim 6, characterized in that: A tube body (5) is provided at the top end of the support plate (12), and the outer wall of the tube body (5) is provided on the inner walls of the first through hole (9) and the second through hole (10).

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