A flange welding fixture

Abstract

The utility model discloses a flange welding clamp, relates to the technical field of clamps, solves the technical problems that the existing flange welding clamp is not universal and cannot match flanges of various specifications and shapes; and the operator needs to constantly move the position to weld the flange during the welding process; the utility model comprises a motor and a clamping table, the clamping table is fixedly connected to the motor output shaft, a clamping block, a gear, a slide groove, a slider, a screw and a rotating wheel are arranged in the clamping table, the screw is driven to rotate by the rotating wheel, and the slider slides along the slide groove under the threaded connection of the rotating hole provided by the screw and the slider, and the slider drives the gear to rotate while sliding, and then drives the other sliders to slide synchronously, and the clamping block arranged on the slider moves along the moving groove provided by the clamping table and clamps the flange. This clamping method is simple and intuitive, easy to use, and at the same time ensures the accuracy and rapidity of adjustment, and then the motor is turned on, the clamping table starts to rotate, and the operator performs welding work.

Description

Technical Field

[0001] The utility model belongs to the technical field of clamps, in particular to a clamp for flange welding. Background Art

[0002] Flange is a common mechanical connector, usually used for pipe connection, especially in the field of high-pressure pipe connection. Flange connection has the advantages of low cost and high reliability, and compared with other mechanical connectors, flange has a very strong torque bearing capacity. Before the pipe is connected by flange, the flange needs to be welded at the end of the pipe.

[0003] When welding most flanges to pipes, a clamp is generally used to fix the flange in order to keep it in a stable state during the welding process. However, the existing clamps are not universal and cannot match flanges of various specifications and shapes. At the same time, during the welding process, the operator needs to constantly move to weld the flange, which increases the difficulty of welding and affects the welding quality. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a flange welding fixture, which solves the problem that the existing flange welding fixture is not universal and cannot match flanges of various specifications and shapes; at the same time, the operator needs to constantly move to weld the flange during the welding process.

[0005] To achieve the above-mentioned purpose, according to an embodiment of the first aspect of the utility model, a flange welding fixture is provided, comprising a support frame, a motor and a clamping platform, wherein the motor is fixedly mounted on the upper part of the support frame, the clamping platform is rotatably mounted on the upper part of the motor, and the clamping platform is fixedly connected to the output shaft of the motor;

[0006] The clamping platform comprises a bottom plate and a top plate, the top plate is provided with a movable groove; a rotating shaft and at least two sliding grooves are installed on the bottom plate; one end of the rotating shaft is rotatably connected to the bottom plate, and the other end is fixedly connected to a gear; a slider is slidably connected to the sliding groove; the slider and the gear are meshed; one of the sliders is rotatably connected to a screw, and both ends of the screw are rotatably connected to a support, the support is fixedly installed on the bottom plate, one end of the screw passes through the support and extends to the outside of the clamping platform, and a rotating wheel is installed at the extended end of the screw;

[0007] A clamping block is slidably connected above the sliding block, and the clamping block is arranged in the moving groove.

[0008] Preferably, the sliding block is provided with a rotating hole along the length direction, the screw rod is rotatably arranged in the rotating hole, and the diameter of the rotating hole is adapted to the diameter of the screw rod.

[0009] Preferably, a plurality of gear teeth 1 are fixedly connected to the side of the slider, and the gear teeth 1 are meshed with the gear.

[0010] Preferably, a plurality of gear teeth 2 are fixedly connected to the top of the sliding block, and a plurality of gear teeth 3 are fixedly connected to the bottom of the clamping block, and gear teeth 2 are meshed with gear teeth 3.

[0011] Preferably, limit bars are fixedly installed on both sides of the clamping block, and the upper surface of the limit bar abuts against the lower surface of the top plate.

[0012] Preferably, the clamping block is provided with a V-shaped groove close to the clamping direction.

[0013] Preferably, a bearing is fixedly mounted on the base plate, and one end of the rotating shaft away from the gear is fixedly connected to the bearing.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows: by rotating the rotating wheel, the screw is rotated synchronously and the slider is driven to slide along the slide slot through the threaded connection between the screw and the rotating hole. The clamping block arranged on the slider is constrained by the movable slot, and the meshing relationship between gear teeth two and three is used to make the clamping block move back and forth in the movable slot. The clamping block can quickly clamp or release the flange, and the clamping efficiency is high. This clamping method is simple and intuitive, easy to use, and ensures the accuracy and speed of adjustment. At the same time, through the transmission of the screw, the clamping block can generate sufficient clamping force to ensure that the flange will not move or deform during the welding process. This stable clamping force can greatly improve the quality of welding.

[0015] The setting of the motor enables the flange to rotate slowly and at a constant speed during the welding process, making it more convenient for operators to weld the various connecting parts of the flange and the pipeline, avoiding welding quality problems caused by operators welding while moving during conventional welding work, and improving the flange welding yield rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural diagram of a flange welding fixture of the utility model;

[0017] Figure 2 The internal structure of a flange welding fixture of the utility model Figure 1 ;

[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 The internal structure of a flange welding fixture of the utility model Figure 2 ;

[0020] Figure 5 This is a structural diagram of the slideway and slider of the utility model;

[0021] Figure 6This is a structural diagram of the clamping block of the utility model.

[0022] In the figure: 1. support frame; 2. motor; 3. clamping table; 31. bottom plate; 32. top plate; 321. movable groove; 33. rotating shaft; 34. gear; 35. slide groove; 36. slider; 361. gear one; 362. gear two; 363. rotating hole; 37. clamping block; 371. gear three; 372. limit strip; 38. screw; 381. support; 39. rotating wheel. DETAILED DESCRIPTION

[0023] The technical solution of the utility model will be described clearly and completely in conjunction with the embodiments below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 1-Figure 4 As shown, a flange welding fixture comprises a support frame 1, a motor 2 and a clamping platform 3, wherein the motor 2 is fixedly mounted on the lower part of the support frame 1, the clamping platform 3 is rotatably mounted on the upper part of the support frame 1, and the output shaft of the motor 2 passes through the support frame 1 and is fixedly connected to the clamping platform 3;

[0025] When the flange is fixed on the clamping table 3 for welding, the output shaft of the motor 2 rotates slowly, driving the clamping table 3 and the flange clamped on the clamping table 3 and the pipe plugged on the flange to rotate synchronously and slowly. The operator can stand in a fixed position to perform welding work, avoiding the influence of the operator's constant movement on the welding quality;

[0026] The clamping table 3 includes a bottom plate 31 and a top plate 32. A gear 34 and at least two slide slots 35 are provided on the bottom plate 31. A rotating shaft 33 is provided between the gear 34 and the bottom plate 31. A bearing is fixedly installed on the bottom plate 31. One end of the rotating shaft 33 is fixedly connected to the gear 34, and the other end is fixedly connected to the bearing. The slide slot 35 is fixedly connected to the bottom plate 31.

[0027] like Figure 5-Figure 6 As shown, a slider 36 is slidably connected to the slide groove 35, and a rotating hole 363 is opened along the length direction of the slider 36, and a thread is opened in the rotating hole 363. A plurality of gear teeth 1 361 are fixedly connected to the side of the slider 36, and the slider 36 is meshed with the gear 34 through the gear teeth 1 361. A plurality of gear teeth 2 362 are also fixedly connected to the top of the slider 36;

[0028] A clamping block 37 is slidably disposed on the slider 36, and a plurality of gear teeth 3 371 are fixedly installed at the bottom of the clamping block 37, wherein the gear teeth 3 371 are meshed with the gear teeth 2 362; and limit bars 372 are fixedly installed on both sides of the clamping block 37;

[0029] The top plate 32 is provided with a moving groove 321, and the clamping block 37 is slidably arranged in the moving groove 321, wherein the upper surface of the limiting strip 372 abuts against the lower surface of the top plate 32, and the setting of the limiting strip 372 prevents the clamping block 37 from being separated from the clamping platform 3;

[0030] One of the sliders 36 is rotatably connected to a screw rod 38 through a rotating hole 363, and both ends of the screw rod 38 are rotatably connected to a support 381, and the support 381 is fixedly connected to the bottom plate 31. One end of the screw rod 38 passes through the support 381 and extends to the outside of the clamping table 3, and the extended end of the screw rod 38 is fixedly connected to a rotating wheel 39;

[0031] Through the design of the screw 38 and the rotating wheel 39, the operator can easily adjust the position and clamping force of the clamping block 37 by turning the rotating wheel 39. This adjustment method is simple and intuitive, easy to use, and ensures the accuracy and speed of adjustment; at the same time, through the transmission of the screw 38, the clamping block 37 can generate sufficient clamping force to ensure that the flange will not move or deform during the welding process. This stable clamping force can greatly improve the quality of welding;

[0032] The clamping block 37 is provided with a V-shaped groove near the clamping direction to enhance the clamping stability.

[0033] Working principle of the utility model: when the flange needs to be welded, the flange is placed on the clamping table 3, and the rotating wheel 39 is rotated. At this time, the screw 38 rotates synchronously and drives the slider 36 to slide along the slide groove 35 through the threaded connection relationship with the rotating hole 363. The clamping block 37 set on the slider 36 is constrained by the moving groove 321, and through the meshing relationship between the gear second 362 and the gear third 371, the clamping block 37 moves back and forth in the moving groove 321;

[0034] When the slider 36 slides along the slide groove 35, the slider 36 drives the gear 34 to rotate through the meshing of the gear 1 361 and the gear 34, and the meshing of the gear 34 drives the remaining sliders 36 to slide, and all the clamping blocks 37 move forward and backward along the moving groove 321, thereby clamping the fixed flange;

[0035] After the flange is fixed, the motor 2 is turned on, and the output shaft of the motor 2 drives the clamping table 3 to rotate slowly and synchronously, and the operator welds the flange.

[0036] The above embodiments are only used to illustrate the technical method of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical method of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the utility model.

Claims

1. A flange welding fixture, comprising a support frame (1) and a motor (2), wherein the motor (2) is fixedly mounted on the lower part of the support frame (1); characterized in that: It also includes a clamping platform (3), the clamping platform (3) is rotatably mounted on the upper part of the support frame (1), and the clamping platform (3) is fixedly connected to the output shaft of the motor (2); The clamping platform (3) comprises a bottom plate (31) and a top plate (32), wherein the top plate (32) is provided with a movable groove (321); a rotating shaft (33) and at least two sliding grooves (35) are installed on the bottom plate (31); one end of the rotating shaft (33) is rotatably connected to the bottom plate (31), and the other end is fixedly connected to a gear (34); the sliding groove (35) is slidably connected to a slider (36); the slider (36) and the gear (34) are meshed; one of the sliders (36) is rotatably connected to a screw rod (38), and both ends of the screw rod (38) are rotatably connected to a support (381), and the support (381) is fixedly installed on the bottom plate (31), and one end of the screw rod (38) passes through the support (381) and extends to the outside of the clamping platform (3), and a rotating wheel (39) is installed at the extended end of the screw rod (38); A clamping block (37) is slidably connected above the sliding block (36), and the clamping block (37) is arranged in the movable groove (321).

2. A flange welding fixture according to claim 1, characterized in that: The sliding block (36) is provided with a rotating hole (363) along the length direction, and the screw rod (38) is rotatably arranged in the rotating hole (363), and the diameter of the rotating hole (363) is adapted to the diameter of the screw rod (38).

3. A flange welding fixture according to claim 1, characterized in that: The side of the slider (36) is fixedly connected with a plurality of gear teeth (361), and the gear teeth (361) are meshed with the gear (34).

4. A flange welding fixture according to claim 1, characterized in that: The top of the slider (36) is also fixedly connected with a plurality of second gear teeth (362), and the bottom of the clamping block (37) is fixedly connected with a plurality of third gear teeth (371), and the second gear teeth (362) are meshed with the third gear teeth (371).

5. The flange welding fixture according to claim 1, characterized in that: Limiting strips (372) are respectively fixedly mounted on both sides of the clamping block (37), and the upper surface of the limiting strips (372) abuts against the lower surface of the top plate (32).

6. A flange welding fixture according to claim 1, characterized in that: The clamping block (37) is provided with a V-shaped groove near the clamping direction.

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