An automatic positioning fixture for multiple welding points

Abstract

This utility model relates to the field of clamping technology, and in particular to an automatic positioning clamp for multiple welding points. It includes a mounting base frame, with an adjustable clamp spacing structure located in the center of the mounting base frame. A fixing frame is fixedly connected to the center of the rear end of the mounting base frame, and a nut block is inserted and fixedly connected to the front upper end of the fixing frame. This automatic positioning clamp for multiple welding points, through the cooperation of the adjustable clamp spacing structure and the upper clamping adjustment structure, can flexibly adjust the clamp spacing according to the diameter of the circular pipe column, achieving precise positioning and stable clamping. The use of pulley pressing blocks and lower pulley blocks to adhere to the surface of the circular pipe column improves positioning accuracy, reduces manual intervention and positioning deviation, and adapts to different pipe diameter requirements, making operation simple and quick, effectively improving welding quality and efficiency, reducing labor intensity, and suitable for multi-welding point welding scenarios, ensuring efficient pipeline manufacturing and engineering installation.

Description

Technical Field

[0001] This utility model relates to the field of fixture technology, and in particular to an automatic positioning fixture for multiple welding points. Background Technology

[0002] In pipeline manufacturing and engineering installation, processes such as the docking of oil and gas pipelines and the welding of branch interfaces often involve welding at multiple points. These operations require specialized fixtures to achieve precise and rapid positioning of multiple welding points on the pipeline to ensure welding quality and efficiency. However, existing positioning fixtures have significant shortcomings. Manual positioning during multi-point welding is prone to errors, resulting in poor sealing, insufficient strength, and low efficiency at the weld. In particular, precise fixing of round pipe columns is difficult to achieve. In addition, some traditional fixtures have poor adaptability and cannot meet the positioning requirements of different pipe diameters, which seriously affects welding quality and progress. Utility Model Content

[0003] The main purpose of this utility model is to provide an automatic positioning fixture for multiple welding points, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] An automatic positioning fixture for multiple welding points includes a mounting base frame, an adjustable fixture spacing structure in the middle of the mounting base frame, a fixing frame fixedly connected to the middle of the rear end of the mounting base frame, a nut block inserted and fixedly connected to the front of the upper end of the fixing frame, an upper fixture clamping adjustment structure movably connected to the nut block by an internal thread, and a circular tube column provided at the upper part of the adjustable fixture spacing structure.

[0006] Preferably, the upper clamping adjustment structure includes a threaded handle column and a lower pressure frame. The threaded handle column is threadedly connected to a nut block. The threaded handle column extends into the upper part of the lower pressure frame and is fixedly connected to a pressing round block. A rotating shaft is inserted and fixedly connected to the lower front end of the lower pressure frame. A pulley pressing block is inserted and movably connected to both the front and rear parts of the outer surface of the rotating shaft. The lower pressure frame is located in the upper part between the two pulley pressing blocks. A threaded block is threadedly movably connected to the upper part of the outer surface of the threaded handle column.

[0007] Preferably, the lower part of the outer surface of the threaded handle column is movably connected to the upper middle part of the pressure frame via threads, and the abutting block is in close contact with but not fixed to the inner lower wall of the pressure frame.

[0008] Preferably, the two pulley blocks abut against the upper part of the outer surface of the cylindrical tube but are not fixed.

[0009] Preferably, the adjustable clamp spacing structure includes a crossbar, the left and right ends of which are fixedly connected to the middle of the inner left wall and the middle of the inner right wall of the mounting base frame, respectively. A threaded groove is provided at the middle of the front end of the crossbar, and bolts are threadedly connected to the left and right parts of the threaded groove. A round tube is inserted and movably connected to the lower clamp assembly on the left and right sides of the crossbar.

[0010] Preferably, the circular tube receiving clamp assembly includes a sliding frame, which is movably connected to the crossbar. A through screw hole is provided in the middle of the front end of the sliding frame, and an arc-shaped rod is fixedly connected to the middle of the upper end of the sliding frame. A sliding wheel block is provided at the front and rear of the right end of the arc-shaped rod, and a placement groove is formed between the two sliding wheel blocks.

[0011] Preferably, the two circular tube receiving clamp assemblies are arranged in a left-right mirror image, and the screw holes and bolts are positioned and matched in size.

[0012] Preferably, the two sliding roller blocks are in close contact with the lower part of the outer surface of the cylindrical column, and the placement groove corresponds to the position of the cylindrical column.

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

[0014] 1. In this utility model, the lower pressure frame moves up and down through the threaded engagement of the threaded handle column and the nut block. When the threaded handle column is rotated, the tight-fitting round block presses against the lower pressure frame, causing the pulley tight-fitting block to press against the round pipe column. The threaded block locks the position, ensuring stable positioning. The pulley tight-fitting block can rotate along the rotating shaft, which can better fit the surface of the round pipe column and improve positioning accuracy. Therefore, the overall structure achieves precise pressure application and stable clamping, eliminating the need for frequent manual adjustments, reducing positioning deviations, improving welding quality and efficiency, and is easy to operate. It is suitable for round pipe columns of different diameters.

[0015] 2. In this utility model, in the adjustable clamp spacing structure, the crossbar provides sliding support for the sliding frame. The spacing between the two round tubes supporting the clamp components can be adjusted by loosening the bolts to adapt to round tube columns of different lengths. The position is then fixed with bolts. The sliding wheel block on the arc-shaped rod forms a placement groove, which can stably support the round tube column and fit tightly against its lower part. The components distributed in a mirror image on the left and right sides ensure symmetrical positioning. The whole structure can be flexibly adjusted, improving the adaptability of the clamp to different pipe diameters, stably supporting the round tube column, facilitating rapid positioning, and ensuring welding quality and progress. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an automatic positioning fixture for multiple welding points according to this utility model;

[0017] Figure 2This is a schematic diagram of the overall clamping and adjusting structure of the upper clamp of the multi-welding point automatic positioning fixture of this utility model;

[0018] Figure 3 This is a schematic diagram of the adjustable clamp spacing structure of an automatic positioning fixture for multiple welding points according to this utility model.

[0019] Figure 4 This is a schematic diagram of the overall structure of the circular tube receiving clamp assembly of the multi-welding point automatic positioning clamp of this utility model.

[0020] In the diagram: 1. Mounting base frame; 2. Adjustable clamp spacing structure; 3. Fixing frame; 4. Nut block; 5. Upper clamp clamping adjustment structure; 6. Round tube column; 21. Crossbar; 22. Threaded groove; 23. Bolt; 24. Round tube supporting lower clamp assembly; 51. Threaded handle column; 52. Lower pressure frame; 53. Clamping round block; 54. Rotating shaft rod; 55. Pulley clamping block; 56. Threaded block; 241. Sliding frame; 242. Screw hole; 243. Arc rod; 244. Lower pulley block; 245. Placement slot. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Please see Figure 1-4 This utility model provides a technical solution:

[0025] An automatic positioning fixture for multiple welding points includes a mounting base frame 1, an adjustable fixture spacing structure 2 is provided in the middle of the mounting base frame 1, a fixing frame 3 is fixedly connected to the middle of the rear end of the mounting base frame 1, a nut block 4 is inserted and fixedly connected to the front of the upper end of the fixing frame 3, an upper fixture clamping adjustment structure 5 is movably connected to the nut block 4 by an internal thread, and a round tube column 6 is provided on the upper part of the adjustable fixture spacing structure 2.

[0026] In this embodiment, the upper clamping adjustment structure 5 includes a threaded handle column 51 and a lower clamping frame 52. The threaded handle column 51 is threadedly connected to the nut block 4. The threaded handle column 51 extends to the upper part of the lower clamping frame 52 and is fixedly connected to a pressing round block 53. A rotating shaft 54 ​​is inserted and fixedly connected to the lower front end of the lower clamping frame 52. A pulley pressing block 55 is inserted and movably connected to both the front and rear parts of the outer surface of the rotating shaft 54. The lower clamping frame 52 is located in the upper part between the two pulley pressing blocks 55. A threaded block 56 is threadedly movably connected to the upper part of the outer surface of the threaded handle column 51. The lower part of the outer surface of the threaded handle column 51 is movably connected to the upper middle part of the lower clamping frame 52 by threads. The pressing round block 53 is in close contact with the lower inner wall of the lower clamping frame 52 but not fixed. The two pulley pressing blocks 55 are in close contact with the upper part of the outer surface of the round tube column 6 but not fixed.

[0027] Through the above scheme: rotating the threaded handle column 51, it moves down along the nut block 4, driving the tight abutment block 53 to press against the lower pressure frame 52, so that the pulley abutment block 55 on the rotating shaft rod 54 presses against the upper part of the round tube column 6, and the threaded block 56 can be locked in position. Therefore, precise pressure is achieved through threaded transmission. The pulley abutment block 55 fits against the surface of the round tube column 6 to ensure stable positioning, thereby eliminating the need for manual positioning, reducing deviation, ensuring accurate fixing of the round tube column 6 during welding, improving welding sealing and strength, while improving positioning efficiency and ensuring stable welding quality.

[0028] In this embodiment, the adjustable clamp spacing structure 2 includes a crossbar 21. The left and right ends of the crossbar 21 are fixedly connected to the middle of the inner left wall and the middle of the inner right wall of the mounting base frame 1, respectively. A threaded groove 22 is provided at the middle of the front end of the crossbar 21. Bolts 23 are threadedly connected to the left and right parts of the threaded groove 22. A round tube supporting the lower clamp assembly 24 is inserted and movably connected to the left and right sides of the crossbar 21. The round tube supporting the lower clamp assembly 24 includes a sliding frame 241. The sliding frame 241 is inserted and movably connected to the crossbar 21. A through screw hole 242 is provided in the middle of the front end of 41. An arc-shaped rod 243 is fixedly connected to the middle of the upper end of the sliding frame 241. A sliding wheel block 244 is provided at the front right end and the rear right end of the arc-shaped rod 243. A placement groove 245 is formed between the two sliding wheel blocks 244. The two round tubes support the lower clamp assembly 24 in a left-right mirror distribution. The screw hole 242 corresponds to the position of the bolt 23 and the size matches. The two sliding wheel blocks 244 are in close contact with the lower part of the outer surface of the round tube column 6. The placement groove 245 corresponds to the position of the round tube column 6.

[0029] The above solution involves loosening bolt 23, allowing sliding frame 241 to slide along crossbar 21, adjusting the distance between the two round tube receiving clamp components 24 to accommodate round tube columns 6 of different lengths and diameters, then screwing bolt 23 into screw hole 242 to fix the position, placing round tube column 6 in placement groove 245, and lowering wheel block 244 to fit against its lower part. This results in a simple structure, convenient operation, improved clamp adaptability, and ensures welding quality and progress.

[0030] It should be noted that this utility model is an automatic positioning fixture for multiple welding points. During use, firstly, the adjustable fixture spacing structure 2 is adjusted according to the pipe diameter of the cylindrical column 6. The bolts 23 are loosened, allowing the sliding frame 241 to slide along the crossbar 21, changing the spacing of the two cylindrical column support fixture assemblies 24. After adapting to the pipe diameter of the cylindrical column 6, the bolts 23 are screwed into the screw holes 242 to fix the position. Next, the cylindrical column 6 is placed on the placement groove 245 formed by the lower sliding wheel block 244. At this time, the lower sliding wheel block 244 is in close contact with the lower part of the outer surface of the cylindrical column 6. Then, the upper fixture is operated to tighten and adjust. Structure 5: Rotating the threaded handle column 51 causes it to move down along the nut block 4, driving the pressing round block 53 to press the lower pressure frame 52, so that the pulley pressing block 55 on the rotating shaft rod 54 presses against the upper part of the outer surface of the round pipe column 6. The position is locked by the threaded block 56, completing the precise positioning of the round pipe column 6, so that personnel can rotate the round pipe for accurate welding. Therefore, this fixture, through the cooperation of the adjustable fixture spacing structure 2 and the upper fixture pressing adjustment structure 5, can achieve rapid and accurate positioning of round pipe columns 6 of different diameters, solving the problems of poor adaptability and large manual positioning deviation of traditional fixtures, and improving welding quality and efficiency.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-spot automatic positioning fixture comprising a mounting base frame (1), characterized in that: An adjustable clamp spacing structure (2) is provided in the middle of the mounting base frame (1). A fixed frame (3) is fixedly connected to the middle of the rear end of the mounting base frame (1). A nut block (4) is inserted and fixedly connected to the front of the upper end of the fixed frame (3). An upper clamping adjustment structure (5) is movably connected to the nut block (4) with internal threads. A round tube column (6) is provided on the upper part of the adjustable clamp spacing structure (2). The upper clamping adjustment structure (5) includes a threaded handle column (51) and a lower pressure frame (52). The threaded handle column (51) is threadedly connected to the nut block (4). The threaded handle column (51) extends to the upper part of the lower pressure frame (52) and is fixedly connected to a tight-fitting round block (53). A rotating shaft (54) is inserted and fixedly connected to the lower front end of the lower pressure frame (52). A pulley tight-fitting block (55) is inserted and movably connected to the front and rear parts of the outer surface of the rotating shaft (54). The lower pressure frame (52) is located in the upper part between the two pulley tight-fitting blocks (55). A threaded block (56) is threadedly movably connected to the upper part of the outer surface of the threaded handle column (51).

2. A multi-spot automatic positioning fixture according to claim 1, characterized in that: The lower part of the outer surface of the threaded handle column (51) is movably connected to the upper middle part of the pressure frame (52) by threads, and the tight-fitting round block (53) is in close contact with the lower inner wall of the pressure frame (52) but not fixed.

3. A multi-spot automatic positioning fixture according to claim 1, wherein: The two pulley blocks (55) together abut against the upper part of the outer surface of the cylindrical column (6) but are not fixed.

4. The multi-welding point automatic positioning fixture according to claim 1, characterized in that: The adjustable clamp spacing structure (2) includes a crossbar (21). The left and right ends of the crossbar (21) are fixedly connected to the middle of the inner left wall and the middle of the inner right wall of the mounting base frame (1), respectively. A threaded groove (22) is provided in the middle of the front end of the crossbar (21). Bolts (23) are threadedly connected to the left and right parts of the threaded groove (22). A round tube is inserted and movably connected to the lower clamp assembly (24) on the left and right parts of the crossbar (21).

5. The multi-welding point automatic positioning fixture according to claim 4, characterized in that: The circular tube receiving clamp assembly (24) includes a sliding frame (241), which is movably connected to the crossbar (21). A through screw hole (242) is provided in the middle of the front end of the sliding frame (241). An arc-shaped rod (243) is fixedly connected to the middle of the upper end of the sliding frame (241). A sliding wheel block (244) is provided at the front right end and the rear right end of the arc-shaped rod (243). A placement groove (245) is formed between the two sliding wheel blocks (244).

6. The multi-welding point automatic positioning fixture according to claim 5, characterized in that: The two circular tubes receiving clamp assemblies (24) are distributed in a left-right mirror image, and the screw holes (242) and bolts (23) are in the same position and the sizes match.

7. The automatic positioning fixture for multiple welding points according to claim 6, characterized in that: The two sliding roller blocks (244) are in close contact with the lower part of the outer surface of the cylindrical column (6), and the placement groove (245) corresponds to the position of the cylindrical column (6).

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