Portable anti-deformation tooling for rapid assembly and welding of connecting pipes

Abstract

The utility model belongs to tooling auxiliary technical field, concretely is a portable pipe quick group and prevent deformation frock of assembling and welding, including central shaft, telescopic support part, mobile cover, the thread is processed on the central shaft, and the thread is installed with mobile cover, the circumference of central shaft is arranged with multiple groups structure same telescopic support part, telescopic support part is moved on the central shaft through mobile cover and realizes retraction and outside Zhang. Telescopic support part includes the top rod and fork lever I, fork lever II for bearing up against the top of pipe or cylinder inner wall, and the sliding slot I and sliding slot II are arranged in parallel on the top rod, the middle part of fork lever I and fork lever II is hinged, the outer end of fork lever I is hinged in the sliding slot I of top rod through the pin shaft, and the inner end is hinged on the mobile seat of mobile cover through the pin shaft. The utility model has the advantages of reasonable design, supporting the inside of cylinder when welding, good stability, improved work efficiency and good practical application value.

Description

Technical Field

[0001] This utility model belongs to the field of tooling auxiliary technology, specifically a portable quick assembly and welding tooling for preventing deformation of pipes. Background Technology

[0002] Traditional methods rely on manual marking, positioning, and clamping. Assembly accuracy is heavily influenced by operator experience, easily leading to concentricity deviations and angular offsets, especially noticeable in small-diameter or irregularly shaped pipes. Repeated adjustments to the positioning and welding positions are necessary, resulting in lengthy welding times. During circumferential welding of the pipe to the material, localized high temperatures cause uneven shrinkage, easily leading to deformation and affecting sealing. Deformation requires flame straightening or mechanical reshaping, increasing costs and time, and potentially causing material cracking. Fixed clamps are only suitable for a single pipe diameter, resulting in high storage costs. Currently, when assembling cylinders, the cylinder is lifted, a portion is tack-welded, and then jacks are used to slowly align and tack-weld the upper and lower cylinder sections along the circumference. This invention provides a rapid cylinder assembly fixture that also provides internal support during welding, improving labor efficiency and reducing labor intensity compared to previous assembly methods. Summary of the Invention

[0003] The purpose of this utility model is to provide a portable quick-assembly welding fixture for pipes that prevents deformation. During welding, it provides support to the inside of the cylinder, has good stability, and improves work efficiency.

[0004] This utility model is achieved using the following technical solution:

[0005] A portable quick-assembly welding fixture for preventing deformation of pipes includes a central shaft, a telescopic support, and a movable sleeve.

[0006] The central shaft is threaded and a movable sleeve is installed on the thread; multiple sets of telescopic support parts with the same structure are arranged in the circumferential direction of the central shaft; the telescopic support parts retract and expand by moving the movable sleeve on the central shaft.

[0007] More preferably, the telescopic support includes a top rod and two forks, I and II, for abutting against the inner wall of the pipe or cylinder. The top rod has parallel sliding grooves I and II. The forks I and II are hinged at the middle. The outer end of the fork I is hinged to the sliding groove I of the top rod by a pin, and its inner end is hinged to the moving seat of the movable sleeve by a pin. Similarly, the outer end of the fork II is hinged to the sliding groove II of the top rod by a pin, and its inner end is hinged to the fixed seat at one end of the central shaft by a pin.

[0008] More preferably, the movable sleeve includes a stepped bottom sleeve, which is screwed onto the threaded section of the central shaft. A fixed sleeve is fitted onto the stepped part of the stepped bottom sleeve with a clearance fit. A limiting retaining ring for preventing the fixed sleeve from disengaging is screwed onto the end of the stepped bottom sleeve.

[0009] More preferably, the four sets of telescopic support parts are installed at 90° to each other in the circumference of the central axis.

[0010] More preferably, the fixing seat is located on a circular boss at the end of the central shaft.

[0011] During assembly, first install the movable sleeve, drill a hole in the center of the stepped bottom sleeve and machine the internal thread, put the fixed sleeve on one end of the stepped bottom sleeve, then screw the limit ring into the external thread of the stepped bottom sleeve to block the fixed sleeve, and screw the movable sleeve into the external thread end of the central shaft and assemble it on the central shaft.

[0012] Next, install the portable connector quick assembly welding anti-deformation tooling. First, symmetrically weld the fixed seat onto the circular protrusion of the central shaft. Then, connect one end of fork rod I to the fixed seat on the circular protrusion of the central shaft through pin 5, and connect the other end to the slide groove I of the top rod through pin 5. Connect one end of fork rod II to the fixed seat at one end of the moving seat of the central shaft through pin 5, and connect the other end to the slide groove II of the top rod through pin 5. Then connect fork rod I and fork rod II through pin 5 to complete the installation of the inner end of the tooling's central shaft. Then, complete the installation of the outer end of the tooling's central shaft according to the same installation process.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] 1. This utility model can improve the welding accuracy, efficiency and quality of pipes or cylinders, and also ensure the safety and stability of the processing.

[0015] 2. This utility model can quickly align two cylindrical parts that need to be assembled.

[0016] 3. This utility model can provide support for the inside of the cylinder, which can improve production efficiency, save labor, and reduce the danger to workers.

[0017] This utility model is reasonably designed and provides support to the inside of the cylinder during welding, resulting in good stability, improved work efficiency, labor saving, and reduced worker risks, thus having good practical application value. Attached Figure Description

[0018] Figure 1 This shows a schematic diagram of the tooling structure.

[0019] Figure 2 This is a schematic diagram of the central axis structure.

[0020] Figure 3 This is a schematic diagram of the top rod structure.

[0021] Figure 4 This is a schematic diagram of the movable sleeve structure.

[0022] Figure 5 This is a schematic diagram of the stepped bottom sleeve structure.

[0023] In the diagram, 1-central shaft, 2-telescopic support, 3-moving sleeve, 4-top rod, 5-pin, 101-moving seat, 102-fixed seat (in) Figure 1 The winning bid should be marked on 103), 103-circular boss, 201-fork rod I, 202-fork rod II, 301-step bottom sleeve, 302-fixed sleeve, 303-limiting retaining ring, 401-slide groove I, 402-slide groove II. Detailed Implementation

[0024] To enable those skilled in the art to better understand this utility model, the present utility model will be further described clearly and completely below in conjunction with the accompanying drawings.

[0025] This utility model provides a portable quick-assembly welding fixture for pipes to prevent deformation, which mainly includes: a central shaft 1, a telescopic support 2, and a movable sleeve 3.

[0026] like Figure 2 As shown, the central shaft 1 is threaded, and a movable sleeve 3 is installed on the thread; multiple sets of identical telescopic support parts 2 are arranged circumferentially on the central shaft 1; as shown... Figure 1 As shown, the telescopic support 2 retracts and expands by moving the movable sleeve 3 on the central axis 1.

[0027] like Figure 1 As shown, the telescopic support 2 includes a top rod 4 and forks I 201 and II 202 for abutting against the inner wall of the pipe or cylinder. Figure 3 As shown, the top rod 4 is provided with sliding grooves I 401 and II 402 side by side. Fork rods I 201 and II 202 are hinged at the middle; the outer end of fork rod I 201 is hinged to the sliding groove I 401 of the top rod 4 by a pin 5, and its inner end is hinged to the moving seat 101 of the moving sleeve 3 by a pin 5; similarly, the outer end of fork rod II 202 is hinged to the sliding groove II 402 of the top rod 4 by a pin 5, and its inner end is hinged to the fixed seat 102 at one end of the central shaft 1 by a pin 5.

[0028] like Figure 4 As shown, the movable sleeve 3 includes a stepped bottom sleeve 301, which is screwed onto the threaded section of the central shaft 1. A fixed sleeve 302 is fitted onto the stepped part of the stepped bottom sleeve 301 with a clearance fit. A limiting ring 303 is screwed onto the end of the stepped bottom sleeve 301 to prevent the fixed sleeve 302 from disengaging.

[0029] like Figure 1 As shown, four sets of telescopic support parts 2 are installed at 90 degrees to each other in the circumference of the central shaft 1.

[0030] like Figure 2 As shown, the fixing seat 102 is located on the circular boss 103 at the end of the central shaft 1.

[0031] During assembly, first install the movable sleeve 3, drill a hole in the center of the step bottom sleeve 301 and machine the internal thread, put the fixed sleeve 302 into one end of the step bottom sleeve 301, then screw the limit stop ring 303 into the external thread of the step bottom sleeve 301 to block the fixed sleeve 302, and screw the movable sleeve 3 into the external thread end of the central shaft 1 and assemble it on the central shaft 1.

[0032] Next, install the portable connector quick assembly welding anti-deformation tooling. First, symmetrically weld the fixed seat 102 onto the circular boss 103 of the central shaft 1. Then, connect one end of the fork rod I 201 to the fixed seat 102 on the circular boss 103 of the central shaft 1 through a pin 5, and connect the other end to the slide groove I 401 of the top rod 4 through a pin 5. Connect one end of the fork rod II 202 to the moving seat 101 of the central shaft 1 through a pin 5, and connect the other end to the slide groove II 401 of the top rod 4 through a pin 5. Then connect the fork rod I 201 and the fork rod II 202 through a pin 5 to complete the installation of the inner end of the tooling central shaft 1. Then, complete the installation of the outer end of the tooling central shaft 1 according to the same installation process.

[0033] During operation, first, the tool is inserted into the pipe to be assembled. Then, the step bottom sleeve 301 of the movable sleeve 3 is turned. As the movable sleeve 3 moves, the fork rod I and fork rod II drive the top rod 4 to extend outward until the top rod 4 presses against the inner wall of the pipe or cylinder, aligning the two cylinders to be assembled. Then, the weld seam of the cylinder or pipe can be welded.

[0034] The portable quick-assembly welding anti-deformation tooling of this utility model improves work efficiency, saves labor, and reduces worker risks compared to existing tooling while ensuring the stability of the cylinder body.

[0035] The above description is merely a specific embodiment of this utility model, enabling those skilled in the art to understand or implement it. Although detailed descriptions have been provided with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments, and all should be covered by the protection scope of the claims.

Claims

1. A portable quick-assembly welding fixture for preventing deformation of pipes, characterized in that: Includes a central shaft (1), a telescopic support (2), and a movable sleeve (3); The central shaft (1) is threaded and a movable sleeve (3) is installed on the thread; multiple sets of telescopic support parts (2) with the same structure are arranged in the circumferential direction of the central shaft (1); the telescopic support parts (2) are retracted and extended by moving the movable sleeve (3) on the central shaft (1).

2. The portable quick-assembly welding and anti-deformation tooling for connecting pipes according to claim 1, characterized in that: The telescopic support (2) includes a top rod (4) and fork rod I (201) and fork rod II (202) for supporting the pipe or inner wall of the cylinder. The top rod (4) is provided with sliding groove I (401) and sliding groove II (402) in parallel. The fork rod I (201) and fork rod II (202) are hinged in the middle. The outer end of the fork rod I (201) is hinged to the sliding groove I (401) of the top rod (4) by a pin (5), and its inner end is hinged to the moving seat (101) of the moving sleeve (3) by a pin (5). Similarly, the outer end of the fork rod II (202) is hinged to the sliding groove II (402) of the top rod (4) by a pin (5), and its inner end is hinged to the fixed seat (102) at one end of the central shaft (1) by a pin (5).

3. A portable quick-assembly welding fixture for preventing deformation of pipes according to claim 1 or 2, characterized in that: The movable sleeve (3) includes a stepped bottom sleeve (301), which is screwed onto the threaded section of the central shaft (1). A fixed sleeve (302) is fitted onto the stepped part of the stepped bottom sleeve (301) with clearance fit. A limiting ring (303) is screwed onto the end of the stepped bottom sleeve (301) to prevent the fixed sleeve (302) from disengaging.

4. The portable quick-assembly welding and anti-deformation tooling for connecting pipes according to claim 1, characterized in that: The four sets of telescopic support parts (2) are installed at 90° to each other in the circumference of the central shaft (1).

5. A portable quick-assembly welding fixture for preventing deformation of pipes according to claim 1 or 4, characterized in that: The mounting base (102) is located on the circular boss (103) at the end of the central shaft (1).

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