Welding tool for exhaust pipe of diesel generating set

Abstract

The utility model relates to the technical field of diesel generator machining, in particular to a welding tool for a smoke exhaust pipe of a diesel generator set. Comprising a frame and a sliding positioning assembly, a sliding cross beam is arranged on the frame, the sliding positioning assembly is movably installed on the sliding cross beam, and a supporting device is installed on the sliding positioning assembly and used for positioning a smoke exhaust pipe. The sliding cross beam and the sliding positioning assembly movably installed on the sliding cross beam are arranged on the frame and matched with the supporting device to position the smoke exhaust pipe, and the operation that constructors manually adjust the positions and heights of a straight pipe and an elbow is greatly reduced. According to the positioning device, the straight pipe and the elbow of the smoke exhaust pipe can be quickly and accurately positioned concentrically, so that the preparatory work before welding is more efficient, the overall welding efficiency is improved, and the production period is shortened.

Description

Technical Field

[0001] This utility model relates to the field of diesel generator processing technology, and in particular to a welding fixture for the exhaust pipe of a diesel generator set. Background Technology

[0002] In modern industry, diesel generator sets are widely used as important backup power equipment in many places such as construction sites, communication base stations, hospitals, and data centers. The exhaust pipe, as a crucial component of the diesel generator set, plays a vital role in discharging combustion exhaust gases.

[0003] Generator set exhaust pipes typically contain multiple bends. During welding, the straight pipes and bends must be concentrically joined to ensure welding quality, maintain the exhaust pipe's seal and stability, and prevent gas leaks. However, the joining process presents numerous challenges in practice. Workers must rely on experience and visual observation to continuously adjust the position and height of the straight pipes and bends to achieve concentric alignment. This process is not only time-consuming and labor-intensive but also demands a high level of skill from the workers. Even slight deviations can lead to poor weld quality, requiring rework and further reducing production efficiency.

[0004] In summary, the existing welding methods for diesel generator set exhaust pipes suffer from low production efficiency. There is an urgent need for a new welding fixture to solve these technical problems, improve production efficiency, ensure welding quality, and meet the industrial production requirements for diesel generator set exhaust pipes. Utility Model Content

[0005] The purpose of this invention is to provide a petrochemical wastewater treatment device to solve the problems mentioned in the background art.

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

[0007] A welding fixture for a diesel generator set exhaust pipe includes: a frame and a sliding positioning assembly. A sliding crossbeam is provided on the frame, and the sliding positioning assembly is movably mounted on the sliding crossbeam. A support device is installed on the sliding positioning assembly for positioning the exhaust pipe.

[0008] As a further embodiment of this utility model, longitudinal beams are provided on both sides of the frame, and there are two sets of sliding crossbeams, which are arranged in parallel between the longitudinal beams.

[0009] As a further embodiment of the present invention, the sliding positioning assembly includes a sliding positioning rod and a first sliding positioning block. The sliding positioning rod is movably connected across two sets of sliding beams. A slide bar is provided on the sliding positioning rod. A fourth guide hole is provided on the first sliding positioning block. The first sliding positioning block is sleeved on the slide bar through the fourth guide hole.

[0010] As a further embodiment of this utility model, there are at least two sliding positioning rods, and each sliding positioning rod is provided with at least two first sliding positioning blocks.

[0011] As a further embodiment of this utility model, the sliding positioning rod is a first sliding positioning rod, which includes a second sliding positioning block and a first sliding rod. There are two second sliding positioning blocks, and a first guide hole is provided on the second sliding positioning block. The two second sliding positioning blocks are respectively sleeved on the sliding crossbeam through their first guide holes, and the two second sliding positioning blocks are connected to each other by the first sliding rod.

[0012] As a further embodiment of the present invention, the supporting device is a supporting plate, which is respectively installed on the sides of the first sliding positioning block and the second sliding positioning block, and the top of the supporting plate is provided with an inverted V-shaped notch.

[0013] As a further embodiment of this utility model, the sliding positioning rod is a second sliding positioning rod, which includes two third sliding positioning blocks, a second slide rod, and a third slide rod. The third sliding positioning blocks are provided with second guide holes. The two third sliding positioning blocks are respectively sleeved on the sliding crossbeam through their second guide holes. One end of the second slide rod and the third slide rod are rotatably connected to one of the third sliding positioning blocks, and the other ends of the second slide rod and the third slide rod are connected by a socket.

[0014] As a further embodiment of this utility model, a double-ear seat is provided on one side of the third sliding positioning block, and a single-ear seat is provided at one end of the second slide rod and the third slide rod. The single-ear seat is installed in the double-ear seat and fixed by inserting a pin.

[0015] As a further embodiment of this utility model, the second slide rod is provided with a third guide hole at the end away from the single ear seat, and the third slide rod is provided with a guide rod at the end away from the single ear seat, and the guide rod is inserted into the third guide hole.

[0016] As a further embodiment of this utility model, it also includes a positioning bolt. The bottom of the second sliding positioning block, the third sliding positioning block and the first sliding positioning block are all provided with through bolt holes, and the positioning bolt is installed in the bolt holes.

[0017] The advantages of this invention are: by setting a sliding crossbeam on the frame and a sliding positioning component movably installed on it, combined with a support device to position the exhaust pipe, the manual adjustment of the position and height of the straight pipe and elbow by construction personnel is greatly reduced. It enables quick and accurate concentric positioning of the straight pipe and elbow of the exhaust pipe, making pre-welding preparation more efficient, thereby improving overall welding efficiency and shortening the production cycle.

[0018] Other features and advantages of this utility model will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description

[0019] Figure 1 This is a perspective view of a welding fixture for the exhaust pipe of a diesel generator set according to this utility model;

[0020] Figure 2 yes Figure 1 A three-dimensional view of the first sliding positioning rod in the middle;

[0021] Figure 3 yes Figure 1 Installation diagram of the center positioning bolt;

[0022] Figure 4 yes Figure 1 A 3D view of the first sliding positioning block;

[0023] Figure 5 This is a schematic diagram of an embodiment of flue gas pipe welding;

[0024] Figure 6 This is a schematic diagram of an embodiment of the application of the second sliding positioning rod 3;

[0025] Figure 7 This is an assembly view of the second sliding positioning rod 3.

[0026] List of reference numerals in the attached drawings: Frame 1, First sliding positioning rod 2, Second sliding positioning rod 3, Support plate 4, First sliding positioning block 5, Positioning bolt 6, Exhaust pipe 7, Longitudinal beam 11, Sliding crossbeam 12, Lifting ring 13, Second sliding positioning block 21, First sliding rod 22, First guide hole 23, Third sliding positioning block 31, Second sliding rod 32, Third sliding rod 33, Double ear seat 34, Single ear seat 35, Pin 36, Second guide hole 37, Guide rod 38, Third guide hole 39, Fourth guide hole 51. Detailed Implementation

[0027] 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.

[0028] In existing exhaust pipe welding operations, generator set exhaust pipes typically contain multiple bends, most of which are right-angle bends, with a few being irregularly shaped. During welding, the straight pipe and bends must be concentrically joined to ensure subsequent welding quality and guarantee the exhaust pipe's sealing and stability. However, in practice, workers need to rely on their experience to adjust the position and height of the bends to achieve concentric joining. This process is time-consuming and labor-intensive. To solve this technical problem, this application provides a welding fixture for diesel generator set exhaust pipes.

[0029] like Figure 1 As shown, a welding fixture for a diesel generator set exhaust pipe includes: a frame 1 and a sliding positioning assembly. A sliding crossbeam 12 is provided on the frame 1, and the sliding positioning assembly is movably mounted on the sliding crossbeam 12. A support device is installed on the sliding positioning assembly for positioning the exhaust pipe 7.

[0030] Furthermore, the frame 1 is provided with longitudinal beams 11 on both sides, and there are two sets of sliding crossbeams 12. The two sets of sliding crossbeams 12 are arranged in parallel between the longitudinal beams 11. Specifically, the sliding crossbeams 12 can be guide rails with triangular or polygonal cross sections.

[0031] Furthermore, the sliding positioning assembly includes a sliding positioning rod and a first sliding positioning block 5. The sliding positioning rod is movably connected across the two sets of sliding beams 12. A slide bar is provided on the sliding positioning rod. A fourth guide hole 51 is provided on the first sliding positioning block 5. The first sliding positioning block 5 is sleeved on the slide bar through the fourth guide hole 51.

[0032] Furthermore, there are at least two sliding positioning rods, and each sliding positioning rod is provided with at least two first sliding positioning blocks 5.

[0033] Furthermore, the longitudinal beam 11 is provided with lifting rings 13 to facilitate the hoisting and movement of this device.

[0034] Example 1, such as Figures 1 to 3As shown, the sliding positioning rod is a first sliding positioning rod 2, which includes a second sliding positioning block 21 and a first sliding rod 22. There are two second sliding positioning blocks 21, each with a first guide hole 23. The two second sliding positioning blocks 21 are respectively fitted onto the sliding crossbeam 12 through their first guide holes 23, and are connected by the first sliding rod 22. A support plane is formed by the two first sliding positioning rods 2 and the two sliding crossbeams 12, and a support device 4 can be installed on the first sliding positioning rods 2 and the two sliding crossbeams 12. The support device is a support plate 4, which is respectively installed on the sides of the first sliding positioning block 5 and the second sliding positioning block 21. The top of the support plate 4 has an inverted V-shaped notch, a design that can adapt to the positioning of pipes of different diameters. The distance between the two first sliding positioning rods 2 and the position of the first sliding positioning block 5 on the first sliding rod 22 can be adjusted according to the length of the straight pipe.

[0035] Considering that if the length of the straight pipe to be welded is too long and its two ends are supported, the middle part of the straight pipe is prone to bending and deformation, the first sliding positioning block 5 can be installed on the sliding crossbeam 12 between the two first sliding positioning rods 2. This can effectively suppress thermal deformation displacement during the welding process and control the weld misalignment within ±0.5mm.

[0036] like Figure 4 As shown, it further includes a positioning bolt 6. The bottom of the second sliding positioning block 21, the third sliding positioning block 31 and the first sliding positioning block 5 are all provided with through bolt holes. The positioning bolt 6 is installed in the bolt hole. The positioning bolt 6 can be installed to fix the positioning slider and the sliding rod to prevent displacement.

[0037] like Figure 5 As shown, in this embodiment, the main issue is the connection between the right-angle elbow and the straight pipe. After placing the elbow and straight pipe used for the exhaust pipe into the positioning fixture, the position of the sliding positioning component is adjusted to make the straight pipe and the elbow concentric before welding, ensuring the concentricity of the elbow and the straight pipe and the coaxiality of the straight pipes at both ends of the elbow.

[0038] Example 2, as Figure 6 , Figure 7 As shown, the sliding positioning rod is a second sliding positioning rod 3. The second sliding positioning rod 3 includes two third sliding positioning blocks 31, a second sliding rod 32, and a third sliding rod 33. The third sliding positioning block 31 is provided with a second guide hole 37. The two third sliding positioning blocks 31 are respectively sleeved on the sliding crossbeam 12 through their second guide holes 37. One end of the second sliding rod 32 and the third sliding rod 33 are respectively rotatably connected to one of the third sliding positioning blocks 31, and the other ends of the second sliding rod 32 and the third sliding rod 33 are connected by a socket.

[0039] Furthermore, a double-ear seat 34 is provided on one side of the third sliding positioning block 31, and a single-ear seat 35 is provided at one end of the second slide rod 32 and the third slide rod 33. The single-ear seat 35 is installed in the double-ear seat 34 and fixed by inserting a pin 36.

[0040] Furthermore, the second slide rod 32 has a third guide hole 39 at the end away from the single ear seat 35, and the third slide rod 33 has a guide rod 38 at the end away from the single ear seat 35, and the guide rod 38 is inserted into the third guide hole 39.

[0041] Compared to Example 1, this example solves the problem of connecting irregularly shaped elbows with straight pipes. This example employs a retractable second sliding positioning rod design. Through the hinged structure of the double-ear seat and the single-ear seat, the sliding rod's angle can be adjusted. Combined with the telescopic locking of the guide rod and guide hole, it can adapt to welding requirements for different elbow angles (such as 30°, 45°, 90°, etc.). The modular combination significantly expands the tooling's applicability and reduces the frequency of tooling changes.

[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0043] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A welding fixture for a diesel generator set exhaust pipe, characterized by, The utility model relates to a kind of smoke exhaust pipe positioning device, including: Frame (1) and sliding positioning assembly, the frame (1) is provided with sliding beam (12), the sliding positioning assembly is movably installed on the sliding beam (12), and support device is installed on the sliding positioning assembly for positioning smoke exhaust pipe (7).

2. The welding fixture for a diesel generator set exhaust pipe according to claim 1, characterized in that, The frame (1) is provided with longitudinal beam (11) on both sides, the sliding beam (12) has two groups, and the two groups of sliding beam (12) are arranged in parallel between the longitudinal beam (11).

3. The welding fixture for a diesel generator set exhaust pipe according to claim 2, characterized in that, The sliding positioning assembly includes sliding positioning rod and first sliding positioning block (5), sliding positioning rod movably straddles two groups of the sliding beam (12), the sliding positioning rod is provided with slide rod, and the first sliding positioning block (5) is provided with fourth guide hole (51), and the first sliding positioning block (5) is sleeved on the slide rod by fourth guide hole (51).

4. The welding fixture for a diesel generator set exhaust pipe according to claim 3, characterized in that, The sliding positioning rod is at least two, and at least two first sliding positioning blocks (5) are provided on each sliding positioning rod.

5. The welding fixture for a diesel generator set exhaust pipe according to claim 4, wherein The sliding positioning rod is first sliding positioning rod (2), and the first sliding positioning rod (2) includes second sliding positioning block (21) and first slide rod (22), the second sliding positioning block (21) has two, the second sliding positioning block (21) is provided with first guide hole (23), and two second sliding positioning blocks (21) are respectively sleeved on the sliding beam (12) by first guide hole (23), and two second sliding positioning blocks (21) are connected by the first slide rod (22).

6. A welding fixture for a diesel generator set exhaust pipe as defined in claim 5, wherein The support device is support plate (4), and the support plate is respectively installed on the side of the first sliding positioning block (5) and the second sliding positioning block (21), and the support plate (4) is provided with inverted V-shaped gap on top.

7. A welding fixture for a diesel generator set exhaust pipe as defined in claim 4, wherein The sliding positioning rod is second sliding positioning rod (3), and the second sliding positioning rod (3) includes two third sliding positioning blocks (31), second slide rod (32) and third slide rod (33), the third sliding positioning block (31) is provided with second guide hole (37), and two third sliding positioning blocks (31) are respectively sleeved on the sliding beam (12) by second guide hole (37), and one end of the second slide rod (32) and third slide rod (33) is rotatably connected with one third sliding positioning block (31), and the other end of the second slide rod (32) and third slide rod (33) is connected by spigot joint.

8. The welding fixture for a diesel generator set exhaust pipe according to claim 7, characterized in that, One side of the third sliding positioning block (31) is provided with double lug seat (34), one end of the second slide rod (32) and third slide rod (33) is provided with single lug seat (35), the single lug seat (35) is installed in the double lug seat (34), and is inserted and fixed by pin (36).

9. The welding fixture for a diesel generator set exhaust pipe according to claim 8, wherein The second slide rod (32) is provided with third guide hole (39) away from single lug seat (35) one end, the third slide rod (33) is provided with guide rod (38) away from single lug seat (35) one end, and the guide rod (38) is inserted into third guide hole (39).

10. The welding fixture for a diesel generator set exhaust pipe according to claim 5, wherein Also included are positioning bolts (6), the second sliding positioning block (21), the third sliding positioning block (31) and the first sliding positioning block (5) bottom are all provided with through bolt holes, and the positioning bolts (6) are installed in the bolt holes.

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