Positioning tool for metal pipe fitting welding

Abstract

The utility model discloses a metal pipe fitting welding positioning tool, which comprises a metal pipe fitting, a bottom plate, a bottom supporting mechanism, a clamping mechanism, a slide rail system and a driving unit, the bottom supporting mechanism comprises a first supporting part, a second supporting part, a third supporting part and a fourth supporting part, and the slide rail system comprises a first slide rail, a second slide rail and a third slide rail. The first sliding rail is fixedly connected with the side wall of the bottom plate, the first supporting part, the second supporting part, the third supporting part and the fourth supporting part are all slidably connected with the first sliding rail, and the height of each supporting part is adjustable. The adjustable pipe fitting connecting device has multiple adaptability, and can be matched with circular, square and special-shaped pipe fittings through linkage of the sliding rails and the adjustable supporting part. High-precision positioning is achieved, the clamping mechanism and the supporting part act synergistically, and therefore it is guaranteed that the coaxiality error of pipe fitting butt joint is low, efficiency and convenience are achieved, one-key adjustment of the to-be-welded metal pipe fitting is achieved through motor driving, and the manual adjustment time is saved; the universal wheel sets are adopted, so that the tool is convenient to transfer, and the stability is high after locking.

Description

Technical Field

[0001] This utility model belongs to the field of metal pipe processing technology, specifically relating to a positioning fixture for welding metal pipe fittings. Background Technology

[0002] Traditional metal pipe welding positioning fixtures typically employ a fixed structure and are only suitable for pipes of specific sizes or shapes.

[0003] Chinese utility model patent CN221185382U provides a positioning fixture for welding metal pipe fittings. Specifically, it is a positioning fixture for welding metal pipe fittings, including a base plate. Vertical plates are slidably mounted on both the left and right ends of the top of the base plate. A housing is fixedly mounted on the opposite sides of each of the two vertical plates. A driving mechanism is provided on the base plate, and a fixing mechanism for clamping different pipe fittings is provided on the vertical plates. This positioning fixture for welding metal pipe fittings, through its fixing mechanism, allows the metal pipe fitting to be fitted over the fixing claws during use. Operating a hydraulic push rod extends the movable plate, driving it towards one side of the vertical plate. As the movable plate presses against the inclined plate, the inclined plate, along with the fixing claws, expands outward, compressing the telescopic spring. In this way, metal pipe fittings of different diameters can be fixed from the inside, achieving the fixation of metal pipe fittings of different diameters.

[0004] Traditional technical solutions and the aforementioned improved solutions have the following drawbacks: 1. Poor adaptability: They cannot be flexibly adjusted to adapt to pipes of different diameters, lengths, or irregular shapes, requiring frequent tooling changes and resulting in low efficiency. 2. Low positioning accuracy: Fixed support and clamping mechanisms cannot guarantee the coaxiality and perpendicularity of pipe fittings, easily leading to welding deformation or misalignment. 3. Complex operation: Manual adjustment is time-consuming and labor-intensive, and lacks automated control, making it difficult to meet the needs of mass production. 4. Inconvenient movement: Traditional tooling is mostly based on fixed bases, making it difficult to move flexibly within the workshop.

[0005] To address the aforementioned issues, this invention proposes a modular and adjustable positioning fixture that, through multi-level support, slide rail linkage, and electric drive technology, enables rapid adaptation to the welding requirements of different pipe fittings. Utility Model Content

[0006] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a positioning fixture for welding metal pipe fittings. This positioning fixture can adapt to metal pipe fittings of different shapes, diameters and lengths, which is beneficial to improving welding accuracy and efficiency.

[0007] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:

[0008] A positioning fixture for welding metal pipe fittings includes a metal pipe fitting, a base plate, a bottom support mechanism, a clamping mechanism, a slide rail system, and a drive unit. The bottom support mechanism comprises a first support portion, a second support portion, a third support portion, and a fourth support portion. The slide rail system includes a first slide rail, which is fixedly connected to the side wall of the base plate. The first, second, third, and fourth support portions are all slidably connected to the first slide rail, and the height of each support portion is adjustable.

[0009] Furthermore, the slide rail system also includes a second slide rail and a slider. The slider is fixedly connected to the base plate. The first slide rail is arranged longitudinally along the base plate, and the second slide rail is laterally embedded in the slider to form a bidirectional adjustment structure.

[0010] Further defined, the clamping mechanism includes a first clamping part, a second clamping part, a third clamping part, and a fourth clamping part. The first clamping part, the second clamping part, and the third clamping part are all disposed on both sides of the first slide rail. The bottom of the fourth clamping part is slidably connected to the slider. The clamping surfaces at the ends of each clamping part are all designed with an arc-shaped adaptive shape.

[0011] Furthermore, the drive unit includes an electric motor, which is mounted on the first support portion. The electric motor drives the metal tube to move in conjunction with the second slide rail. This structural design enables automated displacement of the clamping mechanism.

[0012] Furthermore, each clamping part is provided with a set of casters at its bottom, and a locking device is provided at the bottom of the set of casters.

[0013] Further, it also includes a pipe fitting pre-storage section, which is fixed to the top of each clamping section and is used to temporarily store pipe fittings to be welded.

[0014] Furthermore, the clamping mechanism has a built-in pressure sensor, which is used to monitor the clamping force in real time and feed it back to the control system.

[0015] Furthermore, the third and fourth support parts adopt a telescopic structure, with a maximum adjustable height of 1.5 times the diameter of the metal pipe.

[0016] The structure and beneficial effects of this utility model:

[0017] 1. This positioning fixture includes a base plate, a bottom support mechanism, a clamping mechanism, a slide rail system, and a drive unit. The bottom support mechanism consists of four adjustable support sections, which move laterally and longitudinally via the slide rail system to accommodate different pipe lengths. The clamping mechanism connects to the slide rail via a slider and uses an adaptive arc-shaped clamping surface to ensure the pipe is securely fixed. The drive unit controls the movement of the slide rail via a motor, achieving automated adjustment.

[0018] 2. Versatile adaptability: Through the sliding rail linkage and adjustable support, it can be adapted to round, square and irregular shaped pipe fittings.

[0019] 3. High-precision positioning: The clamping mechanism and the support work together to ensure that the coaxiality error of the pipe fittings is ≤0.1mm.

[0020] 4. High efficiency and convenience: The electric motor drive enables one-button adjustment of the metal pipe fittings to be welded, saving manual adjustment time.

[0021] 5. Flexible movement: The use of universal wheels facilitates tooling transfer and provides strong stability when locked. Attached Figure Description

[0022] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0023] Figure 1 This is a schematic diagram of the structure of a positioning fixture for welding metal pipe fittings according to an embodiment of the present invention;

[0024] Figure 2 This is a rear view of an embodiment of a positioning fixture for welding metal pipe fittings according to the present invention;

[0025] Figure 3 This is a top view of an embodiment of a positioning fixture for welding metal pipe fittings according to the present invention.

[0026] The symbols of the main components are explained as follows: The attached drawings are labeled as follows: metal pipe 1, base plate 2, first slide rail 3, first support part 4, second support part 5, third support part 6, fourth support part 7, first clamping part 8, second clamping part 9, third clamping part 10, fourth clamping part 11, universal wheel set 12, slider 13, pipe pre-storage part 14, motor 41, second slide rail 42. Detailed Implementation

[0027] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of 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.

[0029] 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.

[0030] like Figure 1 As shown, this utility model discloses a positioning fixture for welding metal pipe fittings, comprising a metal pipe fitting 1, a base plate 2, a bottom support mechanism, a clamping mechanism, a slide rail system, and a drive unit. The bottom support mechanism comprises a first support part 4, a second support part 5, a third support part 6, and a fourth support part 7. The slide rail system comprises a first slide rail 3, which is fixedly connected to the side wall of the base plate 2. The first support part 4, the second support part 5, the third support part 6, and the fourth support part 7 are all slidably connected to the first slide rail 3, and the height of each support part is adjustable.

[0031] In the practical application of this embodiment, the slide rail system further includes a second slide rail 42 and a slider 13. The slider 13 is fixedly connected to the base plate 2. The first slide rail 3 is arranged longitudinally along the base plate 2. The second slide rail 42 is laterally embedded in the slider 13 to form a bidirectional adjustment structure.

[0032] In the practical application of this embodiment, the clamping mechanism includes a first clamping part 8, a second clamping part 9, a third clamping part 10, and a fourth clamping part 11. The first clamping part 8, the second clamping part 9, and the third clamping part 10 are all disposed on both sides of the first slide rail 3. The bottom of the fourth clamping part 11 is slidably connected to the slider 13. The clamping surfaces at the ends of each clamping part are all designed with an arc-shaped adaptive design.

[0033] In the practical application of this embodiment, the driving unit includes a motor 41, which is mounted on the first support 4. The motor 41 drives the metal tube 1 to move in conjunction with the second slide rail 42. This structural design enables automated displacement of the clamping mechanism.

[0034] In the practical application of this embodiment, each clamping part is provided with a universal wheel assembly 12 at its bottom, and the universal wheel assembly 12 is equipped with a locking device at its bottom.

[0035] In practical applications of this embodiment, a pipe fitting pre-storage section 14 is also included. The pipe fitting pre-storage section 14 is fixed to the top of each clamping section and is used to temporarily store the pipe fittings to be welded.

[0036] In the practical application of this embodiment, the clamping mechanism has a built-in pressure sensor, which is used to monitor the clamping force in real time and feed it back to the control system.

[0037] In the practical application of this embodiment, the third support part 6 and the fourth support part 7 adopt a telescopic structure, and the maximum adjustable height is 1.5 times the diameter of the metal pipe 1.

[0038] Example 1: Welding of circular pipe fittings

[0039] Place the metal pipe 1 on the bottom support mechanism; start the motor 41 to drive the first support part 4 to move laterally along the first slide rail 3, while the fourth clamping part 11 moves laterally along the second slide rail 42 until each clamping part clamps the middle and both ends of the metal pipe 1; adjust the height of each support part to be horizontal to the center line of the metal pipe 1, and then move the fixture to the welding station through the universal wheel set 12, lock it, and then complete the welding.

[0040] Example 2: Welding of irregularly shaped pipe fittings

[0041] The irregular-shaped pipe is placed on the second support part 5 and the third support part 6; the motor 41 is started to drive the first support part 4 to move laterally along the first slide rail 3, so that the first support part 4 is close to the irregular-shaped pipe, and the first clamping part 8 and the second clamping part 9 are close to the curved surface of the irregular-shaped pipe; at the same time, the clamping force is monitored by the pressure sensor to ensure that the clamping force is evenly distributed; after the welding is completed, the next pipe to be welded is quickly replaced by the pipe pre-storage part 14.

[0042] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A positioning fixture for welding metal pipe fittings, comprising a metal pipe fitting (1), a base plate (2), a bottom support mechanism, a clamping mechanism, a slide rail system, and a drive unit, characterized in that: The bottom support mechanism includes a first support part (4), a second support part (5), a third support part (6) and a fourth support part (7). The slide rail system includes a first slide rail (3). The first slide rail (3) is fixedly connected to the side wall of the base plate (2). The first support part (4), the second support part (5), the third support part (6) and the fourth support part (7) are all slidably connected to the first slide rail (3). The height of each support part is adjustable.

2. The positioning fixture for welding metal pipe fittings according to claim 1, characterized in that: The slide rail system also includes a second slide rail (42) and a slider (13). The slider (13) is fixedly connected to the base plate (2). The first slide rail (3) is arranged longitudinally along the base plate (2). The second slide rail (42) is laterally embedded in the slider (13) to form a bidirectional adjustment structure.

3. The positioning fixture for welding metal pipe fittings according to claim 2, characterized in that: The clamping mechanism includes a first clamping part (8), a second clamping part (9), a third clamping part (10), and a fourth clamping part (11). The first clamping part (8), the second clamping part (9), and the third clamping part (10) are all located on both sides of the first slide rail (3). The bottom of the fourth clamping part (11) is slidably connected to the slider (13). The clamping surfaces at the ends of each clamping part are all designed with an arc-shaped adaptive design.

4. The positioning fixture for welding metal pipe fittings according to claim 1, characterized in that: The drive unit includes an electric motor (41), which is mounted on the first support (4). The electric motor (41) drives the metal tube (1) to move in conjunction with the second slide rail (42).

5. The positioning fixture for welding metal pipe fittings according to claim 3, characterized in that: Each clamping part is provided with a universal wheel assembly (12) at its bottom, and the universal wheel assembly (12) is equipped with a locking device at its bottom.

6. The positioning fixture for welding metal pipe fittings according to claim 3, characterized in that: It also includes a pipe fitting storage section (14), which is fixed on the top of each clamping section and is used to temporarily store the pipe fittings to be welded.

7. The positioning fixture for welding metal pipe fittings according to claim 1, characterized in that: The clamping mechanism has a built-in pressure sensor, which is used to monitor the clamping force in real time and feed it back to the control system.

8. The positioning fixture for welding metal pipe fittings according to claim 1, characterized in that: The third support (6) and the fourth support (7) adopt a telescopic structure, and the maximum adjustable height is 1.5 times the diameter of the metal pipe (1).

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