Clamp for welding metal pipe fitting

Abstract

The utility model belongs to the technical field of metal pipe fitting welding, and particularly relates to a metal pipe fitting welding clamp which comprises a base, four support plates are symmetrically fixed to the top of the base, two supporting rollers are symmetrically and rotationally installed between every two corresponding support plates through bearings, a frame body is arranged over the four supporting rollers, and the four supporting rollers are arranged on the frame body. Four support blocks are symmetrically fixed to the bottom of the frame body, and two pressing rollers are symmetrically and rotationally installed between every two corresponding support blocks through bearings. By arranging the base, the support plate, the supporting roller, the frame body, the support block, the pressing roller, the first chain wheel, the rotating rod, the second chain wheel, the chain, the driving assembly and the lifting assembly, two metal pipe fittings to be welded can be fixed, the two metal pipe fittings can be driven to rotate, in this way, workers only need to align a welding gun to the joint of the two metal pipe fittings, and the welding efficiency is improved. Welding treatment does not need to be conducted around the joint of the two metal pipe fittings by one circle, and therefore the use effect is good.

Description

Technical Field

[0001] This utility model relates to the field of metal pipe welding technology, specifically a clamp for welding metal pipes. Background Technology

[0002] When welding some metal pipes, clamps are needed to fix two metal pipes to be welded. Then, workers use a welding torch to weld the joints of the two metal pipes together. Current clamps for fixing metal pipes usually only have the function of clamping and fixing, and cannot control the rotation of the metal pipes. Therefore, when welding, workers need to hold the welding torch around the joint of the metal pipes to perform the welding operation, which results in poor performance. Therefore, we have proposed a clamp for welding metal pipes to solve the above problems. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a clamp for welding metal pipe fittings, which solves the problems mentioned in the background section.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0007] A metal pipe welding fixture includes a base, four support plates symmetrically fixed to the top of the base, two support rollers symmetrically mounted between corresponding pairs of support plates via bearings, a frame above the four support rollers, four support blocks symmetrically fixed to the bottom of the frame, two pressure rollers symmetrically mounted between corresponding pairs of support blocks via bearings, a first sprocket fixed to one end of each of the four pressure rollers, a rotating rod rotatably mounted inside the frame via bearings, second sprockets fixed to both ends of the rotating rod, chains on both sides of the frame, the second sprockets being connected to the corresponding two first sprockets via chain drive, a drive assembly for driving the rotating rod to rotate inside the frame, and a lifting assembly for lifting the frame on the base.

[0008] Furthermore, the drive assembly includes a motor fixed to the inner wall of the top of the frame, the output shaft of the motor is fixed with a driving bevel gear, the surface of the driving bevel gear is meshed with a driven bevel gear, and the driven bevel gear is sleeved and fixed to the surface of the rotating rod.

[0009] Furthermore, the lifting assembly includes an L-shaped plate fixed to the top of the base, and a cylinder is fixed to the lower top surface of the L-shaped plate, with the cylinder's ejector end fixedly connected to the top of the frame.

[0010] Furthermore, two telescopic sleeves are symmetrically fixed to the lower top surface of the L-shaped plate, and the bottom ends of the two telescopic sleeves are fixedly connected to the top of the frame.

[0011] Furthermore, mounting holes are provided at all four corners of the base.

[0012] (III) Beneficial Effects

[0013] Compared with the prior art, this utility model provides a clamp for welding metal pipe fittings, which has the following advantages:

[0014] This invention, by setting up a base, support plate, support roller, frame, support block, pressure roller, first sprocket, rotating rod, second sprocket, chain, drive assembly, and lifting assembly, can fix two metal pipes to be welded and drive them to rotate. In this way, the worker only needs to aim the welding gun at the joint of the two metal pipes, without having to weld around the joint of the two metal pipes. Therefore, the effect is better. Attached Figure Description

[0015] Figure 1 This is a first-person perspective three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the overall second-view three-dimensional structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the overall front view of the present invention;

[0018] Figure 4 This is a schematic diagram of the frame structure of this utility model.

[0019] In the diagram: 1. Base; 2. Support plate; 3. Support roller; 4. Frame; 5. Support block; 6. Pressure roller; 7. First sprocket; 8. Rotating rod; 9. Second sprocket; 10. Chain; 11. Drive assembly; 1101. Motor; 1102. Driving bevel gear; 1103. Driven bevel gear; 12. Lifting assembly; 1201. L-shaped plate; 1202. Cylinder; 1203. Telescopic sleeve; 13. Mounting hole. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example

[0022] like Figure 1-4 As shown in the figure, a metal pipe welding clamp according to one embodiment of the present invention includes a base 1. Mounting holes 13 are provided at each of the four corners of the base 1 to facilitate fixing the base 1 to the desired position using bolts or screws. Four support plates 2 are symmetrically fixed to the top of the base 1. Two support rollers 3 are symmetrically mounted between corresponding pairs of support plates 2 via bearings. A frame 4 is positioned directly above the four support rollers 3. Four support blocks 5 are symmetrically fixed to the bottom of the frame 4. Two pressure rollers 6 are symmetrically mounted between corresponding pairs of support blocks 5 via bearings. A first sprocket 7 is fixed to one end of each of the four pressure rollers 6. A rotating rod 8 is rotatably mounted inside the frame 4 via bearings. Second sprockets 9 are fixed to both ends of the rotating rod 8. Chains 10 are provided on both sides of the frame 4. The second sprockets 9 are connected to the corresponding two first sprockets 7 via the chains 10. A mechanism for driving the rotating rod is provided inside the frame 4. The drive assembly 11 rotates, and the base 1 is equipped with a lifting assembly 12 for lifting the frame 4. When two metal pipes need to be welded together, the two metal pipes are first placed on the corresponding two support rollers 3, and then the ends of the two metal pipes are joined together. After the joining is completed, the lifting assembly 12 controls the frame 4 to move downward, so that two pressure rollers 6 press on one metal pipe and the other two pressure rollers 6 press on the other metal pipe. Then, the drive assembly 11 drives the rotating rod 8 to rotate. The rotating rod 8 can drive two second sprockets 9 to rotate. The two second sprockets 9 can drive four first sprockets 7 to rotate synchronously through two chains 10. The four first sprockets 7 can drive four pressure rollers 6 to rotate synchronously. Therefore, the two metal pipes to be welded can be driven to rotate synchronously. In this way, the worker can use the welding gun to aim at the interface of the two metal pipes to complete the welding of one circle at the interface.

[0023] like Figure 1 , Figure 2 and Figure 3 As shown, in some embodiments, the drive assembly 11 includes a motor 1101 fixed to the inner wall of the top of the frame 4. The output shaft of the motor 1101 is fixed with a drive bevel gear 1102. The surface of the drive bevel gear 1102 is meshed with a driven bevel gear 1103. The driven bevel gear 1103 is sleeved and fixed on the surface of the rotating rod 8. When it is necessary to drive the rotating rod 8 to rotate, the motor 1101 can be started. The motor 1101 can drive the drive bevel gear 1102 to rotate. The drive bevel gear 1102 can drive the driven bevel gear 1103 to rotate. The driven bevel gear 1103 can drive the rotating rod 8 to rotate.

[0024] like Figure 1 , Figure 2 and Figure 3As shown, in some embodiments, the lifting assembly 12 includes an L-shaped plate 1201 fixed to the top of the base 1. A cylinder 1202 is fixed to the lower top surface of the L-shaped plate 1201. The top end of the cylinder 1202 is fixedly connected to the top of the frame 4. Two telescopic sleeves 1203 are symmetrically fixed to the lower top surface of the L-shaped plate 1201. The bottom ends of the two telescopic sleeves 1203 are fixedly connected to the top of the frame 4. This is to enable the frame 4 to move more stably in the vertical direction. When it is necessary to control the frame 4 to move downward, the top end of the cylinder 1202 can be extended. When it is necessary to control the frame 4 to move upward, the top end of the cylinder 1202 can be retracted.

[0025] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A clamp for welding metal pipe fittings, comprising a base (1), characterized in that: Four support plates (2) are symmetrically fixed on the top of the base (1). Two support rollers (3) are symmetrically mounted between two corresponding support plates (2) via bearings. A frame (4) is set directly above the four support rollers (3). Four support blocks (5) are symmetrically fixed on the bottom of the frame (4). Two pressure rollers (6) are symmetrically mounted between two corresponding support blocks (5) via bearings. A first sprocket (7) is fixed at one end of each of the four pressure rollers (6). A rotating rod (8) is rotatably mounted inside the frame (4) via bearings. A second sprocket (9) is fixed at both ends of the rotating rod (8). Chains (10) are set on both sides of the frame (4). The second sprocket (9) is connected to the two corresponding first sprockets (7) via the chain (10). A drive assembly (11) for driving the rotating rod (8) to rotate is set inside the frame (4). A lifting assembly (12) for lifting the frame (4) is set on the base (1).

2. The metal pipe welding fixture according to claim 1, characterized in that: The drive assembly (11) includes a motor (1101) fixed to the inner wall of the top of the frame (4). The output shaft of the motor (1101) is fixed with a drive bevel gear (1102). The surface of the drive bevel gear (1102) is meshed with a driven bevel gear (1103). The driven bevel gear (1103) is sleeved and fixed on the surface of the rotating rod (8).

3. The metal pipe welding fixture according to claim 1, characterized in that: The lifting assembly (12) includes an L-shaped plate (1201) fixed to the top of the base (1), and a cylinder (1202) is fixed to the lower top surface of the L-shaped plate (1201). The top end of the cylinder (1202) is fixedly connected to the top of the frame (4).

4. A metal pipe welding fixture according to claim 3, characterized in that: Two telescopic sleeves (1203) are symmetrically fixed on the lower top surface of the L-shaped plate (1201), and the bottom ends of the two telescopic sleeves (1203) are fixedly connected to the top of the frame (4).

5. A metal pipe welding fixture according to claim 1, characterized in that: Mounting holes (13) are provided at all four corners of the base (1).

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