Clamping device for butt welding flange machining

Abstract

The clamping device is applied to the technical field of butt welding flange machining and comprises a base, a fixing plate is arranged at the top of the base, a supporting column is welded between the base and the fixing plate, and the surface of the supporting column is rotationally connected with a rotating seat in a sleeved mode, and the rotating seat is connected with the interior of the base in a sliding mode. And the arc-shaped clamping plates are driven by the four connecting rods to synchronously clamp the welding neck flange at four angles, so that the stability of the welding neck flange after being clamped and fixed is improved, and the welding neck flange is prevented from shaking during machining. And meanwhile, the four arc-shaped clamping plates can be uniformly adjusted only by rotating the rotating seat, and control operation is also facilitated. After the welding neck flange is clamped and fixed, the small gear is rotated to be meshed with the large gear. And the butt welding flange clamped and fixed to the top of the rotating disc can rotate to adjust the position, the butt welding flange does not need to be detached from the clamping device, and the drilling machining efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of butt welding flange processing, and particularly relates to a clamping device for butt welding flange processing. Background Technique

[0002] During the drilling process of butt welding flanges, in order to prevent the butt welding flanges from shaking, a clamping device is required to clamp and fix the butt welding flanges.

[0003] Currently, the Chinese utility model with the publication number of CN217142889U discloses an anti-torsion clamping device for butt welding flange processing, including a substrate. An annular groove is formed on the outer surface at the center of the substrate, and a first sliding groove is formed on the inner surface of the annular groove. Transverse sliding plates are movably connected to the inner surfaces on both sides of the first sliding groove, and a support plate is fixedly connected to the side of the transverse sliding plate away from the substrate. Through the combined use of a threaded cap, a moving threaded rod, and a first threaded handle, the clamping plate can be moved inward or outward, so that the clamping plate can adjust the clamping work on both sides according to the size of the butt welding flange. Among them, through the combined use of a special-shaped plate, a fixed threaded rod, and a second threaded handle, the moving plate can drive the heat-conducting pressure rod to move up and down, so that the heat-conducting pressure rod can adjust the clamping work on the upper and lower parts according to the thickness of the butt welding flange. The double-direction clamping makes the butt welding flange more stable.

[0004] The existing clamping devices generally clamp and fix both sides of the butt welding flange. This clamping method has relatively unstable clamping force. Since the surface of the butt welding flange is arc-shaped, it is easy for the clamping plate to slip off the surface of the butt welding flange, resulting in shaking during the processing of the butt welding flange. At the same time, after the existing clamping device clamps and fixes the butt welding flange, it cannot rotate the butt welding flange, so it cannot be directly adjusted according to the drilling position during the drilling process of the butt welding flange. It is necessary to disassemble the butt welding flange from the clamping device and reinstall it according to the position, which is more troublesome to operate and has low practicability. Content of the Utility Model

[0005] The purpose of the utility model is to provide a clamping device for butt welding flange processing, which has the advantages of improving the clamping stability of the butt welding flange and facilitating the function of rotating and adjusting the drilling position of the clamped butt welding flange.

[0006] The above technical object of the utility model is achieved by the following technical solutions: A clamping device for butt welding flange processing, including a base, a fixing plate is arranged on the top of the base, support columns are welded between the base and the fixing plate, a rotating seat slidably connected to the inside of the base is rotatably sleeved on the surface of the support columns, threaded rods are rotatably connected to the four corners inside the rotating seat, threaded sleeves are threadedly sleeved on the surfaces of the four threaded rods, tapered gears are bolted to the ends of the four threaded rods close to each other, and a fixed bevel gear ring meshing with the tapered gears is fixedly sleeved on the surface of the support columns. Four connecting rods respectively fixedly connected to the four threaded sleeves are arranged on the four sides of the top of the fixing plate, and arc-shaped clamping plates are bolted to the ends of the four connecting rods close to each other.

[0007] By adopting the above technical solutions, the arc-shaped clamping plates are driven by the four connecting rods to synchronously clamp the four angles of the butt welding flange, which not only improves the stability of the butt welding flange after clamping and fixing, but also prevents shaking during processing. At the same time, only by rotating the rotating seat, the four arc-shaped clamping plates can be uniformly adjusted, which is also convenient for control operations. After the butt welding flange is clamped and fixed, the small gear is rotated to engage with the large gear. Thereby driving the rotating disc to rotate, so that the butt welding flange clamped on the top of the rotating disc can be rotated and adjusted in position, without disassembling the butt welding flange from the clamping device, improving the drilling processing efficiency.

[0008] The utility model is further arranged as follows: A rotating shaft is rotatably connected to the inside of the support column, a rotating disc bolted to the rotating shaft is arranged on the top of the fixing plate, a large gear is fixedly sleeved on the surface of the rotating shaft, and a small gear meshing with the large gear is rotatably connected to one side inside the fixing plate.

[0009] By adopting the above technical solutions, the efficiency of drilling processing of the butt welding flange is improved, and the practicability is enhanced.

[0010] The utility model is further arranged as follows: A collecting groove is opened on the top of the fixing plate.

[0011] By adopting the above technical solutions, the waste materials after drilling the butt welding flange can be centrally collected inside, which is convenient for subsequent treatment.

[0012] The utility model is further arranged as follows: Drums are symmetrically and rotatably connected to the sides of the four arc-shaped clamping plates away from the connecting rods.

[0013] By adopting the above technical solutions, the friction force of the butt welding flange during rotation after being clamped and fixed by the arc-shaped clamping plates is reduced, which is convenient for rotation and adjustment.

[0014] The utility model is further arranged as follows: An anti-slip pad is bonded to the bottom of the base.

[0015] Adopting the above technical solution, the friction between the clamping device and the ground during placement is increased, and the placement stability is improved.

[0016] The present utility model is further configured as: a ball is rotatably connected inside the base and slidably connected to the bottom of the rotating seat.

[0017] Adopting the above technical solution, the friction of the rotating seat rotating inside the base is reduced, and the rotation stability is improved.

[0018] The present utility model is further configured as: a magnet is fixedly connected to the top of the rotating disc.

[0019] Adopting the above technical solution, the butt welding flange is adsorbed and fixed on the top of the rotating disc by the magnetic force of the magnet, so that the rotating disc can stably drive the butt welding flange to rotate.

[0020] In summary, the present utility model has the following beneficial effects:

[0021] 1. The four connecting rods drive the arc-shaped clamping plates to synchronously clamp the four angles of the butt welding flange, which not only improves the stability of the butt welding flange after clamping and fixing, and prevents shaking during processing. At the same time, only by rotating the rotating seat can the four arc-shaped clamping plates be uniformly adjusted, which is also convenient for control operation;

[0022] 2. After the butt welding flange is clamped and fixed, the small gear meshes with the large gear. Thereby driving the rotating disc to rotate, so that the butt welding flange clamped on the top of the rotating disc can be rotated and adjusted in position without disassembling the butt welding flange from the clamping device, improving the drilling processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of the present utility model;

[0024] Figure 2 is a structural sectional view of the present utility model.

[0025] Reference numerals: 1. Base; 2. Fixed plate; 3. Support column; 4. Fixed bevel gear ring; 5. Threaded rod; 6. Bevel gear; 7. Threaded sleeve; 8. Connecting rod; 9. Arc-shaped clamping plate; 10. Rotating disc; 11. Large gear; 12. Small gear; 13. Rotating seat; 14. Ball; 15. Drum; 16. Magnet; 17. Collection groove; 18. Rotating shaft; 19. Anti-slip pad. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The following further describes the present utility model in detail with reference to the drawings.

[0027] Embodiment 1:

[0028] Refer to Figure 1 、Figure 2 , A clamping device for butt welding flange processing, including a base 1. A fixing plate 2 is arranged at the top of the base 1. A support column 3 is welded between the base 1 and the fixing plate 2. A rotating seat 13 which is slidably connected to the inside of the base 1 is rotatably sleeved on the surface of the support column 3. Four threaded rods 5 are rotatably connected to the four corners inside the rotating seat 13. Threaded sleeves 7 are threadedly sleeved on the surfaces of the four threaded rods 5. Conical gears 6 are bolted to the ends of the four threaded rods 5 close to each other. A fixed conical gear ring 4 which meshes with the conical gear 6 is fixedly sleeved on the surface of the support column 3. Four connecting rods 8 which are respectively fixedly connected to the four threaded sleeves 7 are arranged on the four sides of the top of the fixing plate 2. Arc-shaped clamping plates 9 are bolted to the ends of the four connecting rods 8 close to each other. By driving the arc-shaped clamping plates 9 to synchronously clamp the four angles of the butt welding flange through the four connecting rods 8, not only the stability after clamping and fixing the butt welding flange is improved, but also the shaking during processing is prevented. At the same time, only by rotating the rotating seat 13 can the four arc-shaped clamping plates 9 be uniformly adjusted, which is also convenient for control operation.

[0029] Reference Figure 1 , Figure 2 , A collection groove 17 is opened at the top of the fixing plate 2. The waste materials after drilling the butt welding flange can be centrally collected into it, which is convenient for subsequent processing.

[0030] Reference Figure 1 , Figure 2 , Roller 15s are symmetrically and rotatably connected to the sides of the four arc-shaped clamping plates 9 away from the connecting rods 8. The frictional force of the butt welding flange rotating after being clamped and fixed by the arc-shaped clamping plates 9 is reduced, which is convenient for rotation adjustment.

[0031] Reference Figure 1 , Figure 2 , An anti-slip pad 19 is bonded to the bottom of the base 1. The frictional force between the clamping device and the ground during placement is increased, and the placement stability is improved.

[0032] Brief description of the usage process: By rotating the rotating seat 13 to drive the connecting rods 8 and the arc-shaped clamping plates 9 to rotate on the top of the fixing plate 2, and at the same time making the conical gear 6 mesh with the bottom of the fixed conical gear ring 4 of different positions, so that the threaded rod 5 rotates inside the rotating seat 13. Then, through the rotation of the threaded rod 5 and the threaded engagement with the threaded sleeve 7, the connecting rod 8 at the top of the threaded sleeve 7 slides under the limit of the rotating seat 13, and further the four connecting rods 8 can drive the arc-shaped clamping plates 9 to approach each other during the rotation on the top of the fixing plate 2, and the butt welding flange placed on the top of the fixing plate 2 can be clamped and fixed.

[0033] Example 2:

[0034] Reference Figure 1 , Figure 2, A clamping device for butt welding flange processing. A rotating shaft 18 is rotatably connected inside a support column 3. A rotating disk 10 bolted to the rotating shaft 18 is provided on the top of a fixing plate 2. A large gear 11 is fixedly sleeved on the surface of the rotating shaft 18. A small gear 12 meshing with the large gear 11 is rotatably connected to one side inside the fixing plate 2. After clamping and fixing the butt welding flange, rotate the small gear 12 to engage with the large gear 11, thereby driving the rotating disk 10 to rotate, so that the butt welding flange clamped on the top of the rotating disk 10 can be rotated to adjust the position, without disassembling the butt welding flange from the clamping device, improving the drilling processing efficiency.

[0035] Reference Figure 2 , A ball 14 is rotatably connected inside a base 1 and is slidably connected to the bottom of a rotating seat 13. The friction of the rotating seat 13 rotating inside the base 1 is reduced, improving the rotation stability.

[0036] Reference Figure 1 , Figure 2 , A magnet 16 is fixedly connected to the top of the rotating disk 10. The butt welding flange is adsorbed and fixed on the top of the rotating disk 10 by the magnetic force of the magnet 16, so that the rotating disk 10 can stably drive the butt welding flange to rotate.

[0037] Brief description of the use process: Rotate the small gear 12 to engage with the large gear 11, so that the rotating shaft 18 rotates inside the support column 3. Then, drive the rotating disk 10 to rotate during the rotation of the rotating shaft 18, so that the butt welding flange placed on the top of the rotating disk 10 can be rotated to adjust the position, and the drilling tool can drill at various different positions on the top of the butt welding flange.

[0038] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. Those skilled in the art can make modifications without creative contributions to this embodiment according to needs after reading this specification, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. A clamping device for processing a butt-weld flange, comprising a base (1), characterized in that: A fixing plate (2) is arranged on the top of the base (1), a support column (3) is welded between the base (1) and the fixing plate (2), a rotating seat (13) slidably connected to the inside of the base (1) is rotatably sleeved on the surface of the support column (3), a threaded rod (5) is rotatably connected to the four corners of the rotating seat (13), the surfaces of the four threaded rods (5) are threadedly sleeved with threaded sleeves (7), the ends of the four threaded rods (5) close to each other are bolted to a bevel gear (6), the surface of the support column (3) is fixedly sleeved with a fixed bevel gear ring (4) meshing with the bevel gear (6), four connecting rods (8) fixedly connected to the four threaded sleeves (7) are arranged on the four sides of the top of the fixing plate (2), and the ends of the four connecting rods (8) close to each other are bolted to an arc clamping plate (9).

2. A clamping device for processing butt welding flange according to claim 1, characterized in that: The support column (3) is rotatably connected to a rotating shaft (18) inside, a rotating disk (10) bolted to the rotating shaft (18) is provided on the top of the fixed plate (2), a large gear (11) is fixedly sleeved on the surface of the rotating shaft (18), and a small gear (12) meshing with the large gear (11) is rotatably connected to one side inside the fixed plate (2).

3. The clamping device for processing butt welding flange according to claim 1 is characterized in that: A collecting groove (17) is provided on the top of the fixing plate (2).

4. The clamping device for processing butt-weld flange according to claim 1, characterized in that: The four arc-shaped clamping plates (9) are symmetrically rotatably connected to a roller (15) on one side away from the connecting rod (8).

5. The clamping device for processing butt-weld flange according to claim 1, characterized in that: An anti-skid pad (19) is bonded to the bottom of the base (1).

6. The clamping device for processing butt-weld flange according to claim 1, characterized in that: The base (1) is internally rotatably connected with a ball (14) which is slidably connected to the bottom of the rotating seat (13).

7. The clamping device for processing butt-weld flange according to claim 2, characterized in that: A magnet (16) is fixedly connected to the top of the rotating disk (10).

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