Flange welding auxiliary device

Abstract

The utility model belongs to the technical field of flange welding, and particularly relates to a flange welding auxiliary device. Comprising a bottom support, lifting rods are welded to the two ends of the upper side of the bottom support, movable rods are inserted into the output ends of the lifting rods, fixing bolts are in threaded connection with the side faces of the output ends of the lifting rods, the bolt tails of the fixing bolts abut against the movable rods, and a pipe support is welded to one ends of the movable rods; and the bolt pair is clamped in the chute. The flange welding device can be used for welding flanges with straight pipes, elbows, tee joints and the like, manual hand holding is not needed, labor is reduced, welding efficiency is improved, and potential safety hazards are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of flange welding, and in particular relates to a flange welding auxiliary device. Background Art

[0002] Flange connection is a common form of pipeline connection. Flanges are usually welded to straight pipes, elbows, and tees. When welding flanges, the pipe fittings are prone to tipping over, and two people are required to cooperate, one person holding the other while welding. Manual hand-holding is prone to skewness, causing the pipe fittings and flanges to be non-concentric or non-vertical, and there are certain safety risks. It not only takes up manpower, but is also inefficient. Summary of the invention

[0003] The utility model aims to provide a flange welding auxiliary device to solve the problems existing in the prior art.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a flange welding auxiliary device, including a base bracket, lifting rods are welded at both ends of the upper side of the base bracket, a movable rod is inserted at the output end of the lifting rod, a fixing bolt is threaded on the side of the output end of the lifting rod, the bolt tail of the fixing bolt abuts the movable rod, a pipe bracket is welded at one end of the movable rod, a slide groove is opened on the base bracket, two flange clamps are slidably connected in the slide groove, a bolt pair is bolted on the flange clamp, and the bolt pair is clamped in the slide groove.

[0005] Furthermore, the bottom bracket is in a door shape, the opening of the bottom bracket faces downward, and the slide groove is located at the top of the bottom bracket and passes through the bottom bracket.

[0006] Furthermore, the flange is in a triangular shape, the openings of the two flanges are arranged opposite to each other, a sleeve is welded on the flange, the bolt pair passes through the sleeve and the slide groove in sequence, and the flange is slidably connected in the slide groove through the sleeve and the bolt pair.

[0007] Furthermore, an adjusting rod is inserted in the lifting rod, a positioning bolt is threadedly connected to the side of the lifting rod, the bolt tail of the positioning bolt abuts the adjusting rod, the top of the adjusting rod is the output end of the lifting rod, the movable rod is connected to the top of the adjusting rod, the movable rod is inserted on the lifting rod through the adjusting rod, the fixing bolt is located on the side of the top of the adjusting rod, and the fixing bolt is threadedly connected to the lifting rod through the adjusting rod.

[0008] Furthermore, the movable rod is square.

[0009] Furthermore, the pipe support is in a triangular iron shape, the openings of the two pipe supports are arranged opposite to each other, and the clamping grooves are symmetrically arranged on both sides of the lower position of the pipe support.

[0010] The utility model has the following beneficial effects:

[0011] 1. The utility model can weld flanges with straight pipes, elbows, tees, etc. without manual support, thus reducing labor, improving welding efficiency, and reducing safety hazards.

[0012] 2. The height of the adjusting rod and the position of the movable rod are both adjustable, so they can be adjusted at any time according to the different pipes and sizes to be welded, so as to meet the welding requirements.

[0013] 3. The flange is fixed by the flange clamp, and the flange clamp can slide in the slide groove, so the position can be adjusted according to the size of the flange.

[0014] 4. Fix the straight pipe by two triangular iron-shaped pipe supports to facilitate the welding of the straight pipe and the flange.

[0015] 5. The elbows and tees are supported by the slots on the pipe support, making it easier to weld the elbows, tees and flanges. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model.

[0017] Figure 2 The utility model is a structural schematic diagram when used for flange welding of straight pipes.

[0018] Figure 3 The utility model is a structural schematic diagram when used for flange welding elbow.

[0019] Figure 4 The utility model is a structural schematic diagram when used for flange welding tees.

[0020] Figure 5 It is a schematic diagram of the flange structure of the utility model.

[0021] Among them: 1. Base; 2. Lifting rod; 3. Movable rod; 4. Fixing bolt; 5. Pipe support; 6. Slide groove; 7. Flange clamp; 8. Bolt pair; 9. Sleeve; 10. Adjusting rod; 11. Positioning bolt; 12. Slot. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with specific embodiments and drawings. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] like Figure 1-5As shown, a flange welding auxiliary device includes a base 1, a lifting rod 2 is welded to both ends of the upper side of the base 1, a movable rod 3 is inserted into the output end of the lifting rod 2, a fixing bolt 4 is threaded on the side of the output end of the lifting rod 2, the bolt tail of the fixing bolt 4 abuts the movable rod 3, a pipe support 5 is welded to one end of the movable rod 3, a slide groove 6 is provided on the base 1, two flange clamps 7 are slidably connected in the slide groove 6, a bolt pair 8 is bolted to the flange clamp 7, and the bolt pair 8 is clamped in the slide groove 6. The base 1 is used to place the flange, the lifting rod 2 is used to adjust the lifting according to the size of the pipe fitting, the movable rod 3 is used to adjust the position according to the size of the pipe fitting, and the pipe support 5 is used to clamp the pipe fitting.

[0024] The bottom bracket 1 is in a door shape, with the opening of the bottom bracket 1 facing downward, and the slide groove 6 is located at the top of the bottom bracket 1 and passes through the bottom bracket 1.

[0025] The flange clamp 7 is in a triangular iron shape, and the openings of the two flange clamps 7 are arranged opposite to each other. A sleeve 9 is welded on the flange clamp 7, and a bolt pair 8 passes through the sleeve 9 and the slide groove 6 in sequence. The flange clamp 7 is slidably connected in the slide groove 6 through the sleeve 9 and the bolt pair 8. The two flange clamps 7 are fixed on the slide groove 6 from both sides of the flange, thereby fixing the flange.

[0026] An adjusting rod 10 is inserted into the lifting rod 2, and a positioning bolt 11 is threadedly connected to the side of the lifting rod 2. The bolt tail of the positioning bolt 11 abuts against the adjusting rod 10. The top of the adjusting rod 10 is the output end of the lifting rod 2. The movable rod 3 is connected to the top of the adjusting rod 10. The movable rod 3 is inserted on the lifting rod 2 through the adjusting rod 10. The fixing bolt 4 is located on the side of the top of the adjusting rod 10. The fixing bolt 4 is threadedly connected to the lifting rod 2 through the adjusting rod 10. The fixing or lifting of the adjusting rod 10 is achieved by tightening or loosening the positioning bolt 11.

[0027] The movable rod 3 is square, so that the movement is limited, so that the pipe support 5 is always in a vertical state. If the movable rod 3 is round, the movable rod 3 will rotate, causing the pipe support 5 to not always be vertical.

[0028] The pipe support 5 is in a triangular iron shape, and the openings of the two pipe supports 5 are arranged opposite to each other, and the lower sides of the pipe support 5 are symmetrically provided with clamping grooves 12. The clamping grooves 12 are used to clamp one end of the elbow or the tee, so as to position it.

[0029] The working principle of the utility model is:

[0030] When in use, place the flange on the base 1, place the two flange clamps 7 on both sides of the flange, and tighten the bolt pair 8 to fix the flange. Since the flange clamp 7 can slide in the slide groove 6, the position can be adjusted according to the size of the flange.

[0031] When welding a straight pipe and a flange, align the welding point of the straight pipe and the flange, adjust the position of the movable rod 3 and the height of the adjusting rod 10 so that the two pipe supports 5 are against the outer walls on both sides of the straight pipe, tighten the fixing bolts 4 and the positioning bolts 11 to fix the straight pipe, and then start welding.

[0032] When welding the elbow and the flange, align the welding point of the elbow and the flange, adjust the position of the movable rod 3 and the height of the adjusting rod 10, so that the groove 12 on the pipe support 5 is stuck on the pipe wall at the opening of the elbow, tighten the fixing bolt 4 and the positioning bolt 11 to fix the elbow, and then start welding.

[0033] When welding the tee and the flange, align the welding point of the tee and the flange, adjust the position of the movable rod 3 and the height of the adjusting rod 10, so that the grooves 12 on the two pipe supports 5 are stuck on the pipe wall at the opening of the tee, or the groove 12 on one pipe support 5 is stuck on the pipe wall at the opening of the tee, tighten the fixing bolts 4 and the positioning bolts 11 to fix the elbow, and start welding at this time.

[0034] The height of the adjusting rod 10 and the position of the movable rod 3 are both adjustable, so they can be adjusted at any time according to the different pipes to be welded and the different sizes of the pipes, so as to meet the welding requirements.

[0035] The above-described embodiments are merely descriptions of preferred implementations of the present invention, and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by ordinary persons in the art to the technical solution of the present invention shall fall within the scope of protection of the present invention.

[0036] The technology, shape and structure parts not described in detail in the present invention are all known technologies.

Claims

1. A flange welding auxiliary device, characterized in that: It includes a base support, both ends of the upper side of the base support are welded with lifting rods, the output end of the lifting rod is plugged with a movable rod, the side of the output end of the lifting rod is threaded with a fixing bolt, the bolt tail of the fixing bolt abuts the movable rod, one end of the movable rod is welded with a pipe support, a sliding groove is opened on the base support, two flange clamps are slidably connected in the sliding groove, a bolt pair is bolted on the flange clamp, and the bolt pair is clamped in the sliding groove.

2. The flange welding auxiliary device according to claim 1, characterized in that: The bottom bracket is in a door shape, the opening of the bottom bracket faces downward, and the slide groove is located at the top of the bottom bracket and passes through the bottom bracket.

3. The flange welding auxiliary device according to claim 2, characterized in that: The flange clamp is in a triangular iron shape, the openings of the two flange clamps are arranged oppositely, a sleeve is welded on the flange clamp, the bolt pair passes through the sleeve and the slide groove in sequence, and the flange clamp is slidably connected in the slide groove through the sleeve and the bolt pair.

4. The flange welding auxiliary device according to claim 1, characterized in that: An adjusting rod is inserted in the lifting rod, a positioning bolt is threadedly connected to the side of the lifting rod, the bolt tail of the positioning bolt abuts the adjusting rod, the top of the adjusting rod is the output end of the lifting rod, the movable rod is connected to the top of the adjusting rod, the movable rod is inserted on the lifting rod through the adjusting rod, the fixing bolt is located on the side of the top of the adjusting rod, and the fixing bolt is threadedly connected to the lifting rod through the adjusting rod.

5. The flange welding auxiliary device according to claim 1, characterized in that: The movable rod is square.

6. The flange welding auxiliary device according to claim 1, characterized in that: The pipe support is in a triangular iron shape, the openings of the two pipe supports are arranged opposite to each other, and clamping grooves are symmetrically arranged on both sides of the lower position of the pipe support.

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