A welding fixture

Abstract

The utility model belongs to welding technical field discloses a kind of welding toolings. The welding tooling includes base and support assembly, base, including support table and positioning column, the positioning column is fixedly arranged on the support table, the pipe fitting is sleeved on the positioning column and abuts the support table, the flange piece is sleeved on the outer periphery of the pipe fitting;The support assembly is arranged between the flange piece and the support table, and the length of the support assembly is adjustable, to adjust the distance between the flange piece and the support table. The welding tooling can guarantee the accuracy of the welding position of the flange piece on the pipe fitting, improve consistency, improve efficiency, ensure the relative stability between the pipe fitting and the flange piece, and ensure the welding quality.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, and in particular to a welding fixture. Background Technology

[0002] In the manufacturing process of environmental test chambers, especially those with humidity control functions, the installation of the humidification pipe is a crucial step in ensuring stable moisture delivery. Currently, the common installation method involves fitting a flange over the humidification pipe and welding the two together. Then, using the mounting holes on the flange, screws or bolts are used to secure the humidification pipe assembly to the side wall of the chamber. Furthermore, to ensure smooth connection between the humidification pipe and the moisture generating device, the length of the humidification pipe protruding from the flange end face must be strictly controlled to meet assembly accuracy requirements.

[0003] However, when welding the humidifier pipe and flange, operators need to use a ruler to measure the length of the humidifier pipe protruding from the flange and adjust the length accordingly. This process involves significant errors, making it difficult to ensure consistency and resulting in low efficiency. Moreover, during the welding process, the flange lacks effective positioning, making it prone to skewness or displacement. This leads to unstable welding quality, making it difficult to meet product quality requirements and potentially causing subsequent assembly difficulties or poor sealing. Utility Model Content

[0004] The purpose of this utility model is to provide a welding fixture that can ensure the accuracy of the welding position of the flange on the pipe fitting, improve consistency, increase efficiency, ensure the relative stability between the pipe fitting and the flange, and guarantee the welding quality.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A welding fixture for welding flanges to pipe fittings, comprising:

[0007] The base includes a support platform and a positioning column. The positioning column is disposed on the support platform, the pipe fitting is sleeved on the positioning column and abuts against the support platform, and the flange is sleeved on the outer periphery of the pipe fitting.

[0008] A support assembly is disposed between the flange and the support platform. The length of the support assembly is adjustable to adjust the distance between the flange and the support platform.

[0009] Preferably, the support assembly includes a support member and an adjusting member, the adjusting member being movably disposed on the support member, the support member abutting against the support platform, and the adjusting member abutting against the flange member.

[0010] Preferably, the flange includes a mounting hole, and the support passes through the mounting hole to position the flange.

[0011] Preferably, the support member is slidably connected to the support platform to adjust the distance between the support member and the positioning column.

[0012] Preferably, the support platform has a sliding groove, and a limiting platform protrudes from the side wall of the sliding groove. The support member includes a rod and a limiting part. The limiting part is slidably disposed in the sliding groove. The limiting platform is configured to slidably abut against the limiting part to restrict the limiting part in the sliding groove. The adjusting member is disposed on the rod.

[0013] Preferably, the support assembly further includes a locking member, which is sleeved on the rod and threadedly connected to the rod, and the locking member and the limiting part clamp and fix the limiting platform.

[0014] Preferably, the welding fixture includes at least two sets of the support components, which are spaced apart around the positioning column.

[0015] Preferably, the welding fixture further includes a clamping assembly, which includes two clamping members slidably disposed on the support platform and located on opposite sides of the positioning column, and the two clamping members clamp and fix the pipe fitting.

[0016] Preferably, the clamping assembly further includes two elastic members corresponding to the two clamping members, the elastic members elastically abutting against the corresponding clamping members to bring the two clamping members closer to each other.

[0017] Preferably, the clamping member includes a guide wall and a clamping wall. The guide wall is disposed above the clamping wall and connected to the clamping wall. Along the direction close to the support platform, the distance between the two guide walls of the two clamping members gradually decreases, and the clamping walls of the two clamping members clamp and fix the pipe fitting.

[0018] The beneficial effects of this utility model are:

[0019] This utility model provides a welding fixture. In this welding fixture, the positioning pins of the base can position the pipe fitting, while the pipe fitting abuts against the support platform to ensure its stability. After the flange is fitted onto the outer circumference of the pipe fitting, the flange is supported by a support assembly. The length of the support assembly is adjusted according to the required protrusion of the pipe fitting from the flange, so that the distance between the flange and the support platform is equal to the required protrusion of the pipe fitting from the flange. Finally, the flange is welded and fixed to the outer circumference of the pipe fitting, and the pipe fitting and flange can be removed.

[0020] This welding fixture can quickly adjust the length of the pipe protruding from the flange through the support assembly, and the comparison through the support assembly ensures the accuracy of the welding position of the flange on the pipe, improving consistency and efficiency. The pipe is fixed by the support platform and positioning column, and the flange is fixed by the support assembly, ensuring the relative stability between the pipe and the flange and guaranteeing the welding quality. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of the pipe fittings and flanges described in an embodiment of this utility model;

[0022] Figure 2 This is a schematic diagram of the welding fixture described in an embodiment of the present invention;

[0023] Figure 3 This is a structural schematic diagram of the welding fixture used to fix the pipe fittings and flanges according to an embodiment of this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the support component described in an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the clamping assembly described in an embodiment of the present invention.

[0026] In the picture:

[0027] 100. Pipe fittings; 200. Flange fittings; 201. Mounting holes;

[0028] 1. Base; 11. Support platform; 111. Slide groove; 112. Limiting platform; 113. Limiting retaining wall; 12. Positioning column;

[0029] 2. Support assembly; 21. Support member; 211. Rod; 212. Limiting part; 22. Adjusting part; 23. Locking part;

[0030] 3. Clamping assembly; 31. Clamping element; 311. Guide wall; 312. Clamping wall; 32. Elastic element; 33. Guide post. Detailed Implementation

[0031] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0032] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0035] This utility model provides a welding fixture for welding a flange 200 to a pipe fitting 100. For example... Figures 1-3 As shown, the welding fixture includes a base 1 and a support assembly 2. The base 1 includes a support platform 11 and a positioning post 12. The positioning post 12 is disposed on the support platform 11. The pipe fitting 100 is sleeved on the positioning post 12 and abuts against the support platform 11. The flange 200 is sleeved on the outer periphery of the pipe fitting 100. The support assembly 2 is disposed between the flange 200 and the support platform 11. The length of the support assembly 2 is adjustable to adjust the distance between the flange 200 and the support platform 11.

[0036] In this welding fixture, the positioning pin 12 of the base 1 positions the pipe fitting 100, while the pipe fitting 100 abuts against the support platform 11 to ensure its stability. After the flange 200 is fitted onto the outer periphery of the pipe fitting 100, the flange 200 is supported by the support assembly 2. The length of the support assembly 2 is adjusted according to the required protrusion of the pipe fitting 100 from the flange 200, so that the distance between the flange 200 and the support platform 11 is equal to the required protrusion of the pipe fitting 100 from the flange 200. Finally, the flange 200 is welded and fixed to the outer periphery of the pipe fitting 100, and the pipe fitting 100 and flange 200 can be removed.

[0037] This welding fixture can quickly adjust the length of the protrusion of the pipe fitting 100 onto the flange 200 through the support component 2, and the comparison through the support component 2 ensures the accuracy of the welding position of the flange 200 on the pipe fitting 100, improving consistency and efficiency. The pipe fitting 100 is fixed by the support platform 11 and the positioning column 12, and the flange 200 is fixed by the support component 2, ensuring the relative stability between the pipe fitting 100 and the flange 200 and guaranteeing the welding quality.

[0038] like Figure 2 and Figure 4 As shown, the support assembly 2 includes a support member 21 and an adjusting member 22. The adjusting member 22 is movably mounted on the support member 21. The support member 21 abuts against the support platform 11, and the adjusting member 22 abuts against the flange member 200. By changing the relative position of the adjusting member 22 on the support member 21, the distance between the flange member 200 and the support platform 11 can be adjusted, and this distance is equal to the length of the pipe fitting 100 protruding from the flange member 200. Once the relative position between the adjusting member 22 and the support member 21 is adjusted, the reference for measuring the length of the pipe fitting 100 protruding from the flange member 200 is consistent each time the pipe fitting 100 and the flange member 200 are welded. Operators do not need to use a ruler to measure each time, which improves efficiency and ensures consistency.

[0039] Understandably, the flange 200 has multiple mounting holes 201 spaced circumferentially to facilitate fixing the flange 200 with bolts. For example... Figure 3 As shown, to ensure the stability of the flange 200, in this embodiment, the support 21 passes through the mounting hole 201 to position the flange 200. The adjusting member 22 positions the flange 200 along the axial direction of the pipe fitting 100 by abutting against the end face of the flange 200, while the support 21 positions the flange 200 radially and circumferentially along the pipe fitting 100 through the mounting hole 201. This ensures relative stability between the flange 200 and the pipe fitting 100 during welding, preventing the flange 200 from moving or rotating, and facilitating welding operations for the operator.

[0040] It is worth noting that this welding fixture can weld flanges 200 of different sizes onto the pipe fitting 100, simply by placing the support assembly 2 according to the position of the mounting hole 201 of the flange 200. To further improve the stability of the flange 200, the welding fixture includes at least two sets of support assemblies 2, which are spaced apart around the positioning post 12. Each set of support assemblies 2 corresponds to one mounting hole 201 of the flange 200. By having multiple adjusting pieces 22 simultaneously abut against the end face of the flange 200, the flange 200 can be effectively prevented from deflecting, facilitating welding.

[0041] However, if the support component 2 and the support platform 11 are fixed only by abutting against each other, during the welding process, the support component 21 is prone to slipping relative to the support platform 11 and detaching from the support platform 11, affecting the welding accuracy. Figure 2 and Figure 3 As shown, in order to solve the above problems, the support member 21 is slidably connected to the support platform 11 to adjust the distance between the support member 21 and the positioning column 12, which can effectively prevent the support member 21 from detaching from the support platform 11. Furthermore, since the support member 21 and the support platform 11 can only move relative to each other in the sliding direction, the stability of the support member 21 and the adjusting member 22 when supporting the flange 200 is greatly improved.

[0042] Specifically, such as Figures 2-4 As shown, the support platform 11 has a sliding groove 111, and a limiting platform 112 protrudes from the side wall of the sliding groove 111. The support member 21 includes a rod portion 211 and a limiting portion 212. The limiting portion 212 is slidably disposed in the sliding groove 111. The limiting platform 112 is configured to slide against the limiting portion 212 to restrict the limiting portion 212 within the sliding groove 111. The adjusting member 22 is disposed on the rod portion 211.

[0043] On the one hand, the slide 111 can guide the movement of the support 21, greatly reducing the degree of freedom of the support 21 and preventing the flange 200 from becoming unstable due to the sliding of the support 21 during the welding process; on the other hand, the limiting platform 112 of the slide 111 can limit the support 21 through the limiting part 212 of the support 21, so that the limiting part 212 can only slide within the slide 111 and will not come out of the slide 111, thereby further improving the stability of the support 21.

[0044] Preferably, the support assembly 2 further includes a locking member 23, which is sleeved on the rod portion 211 and threadedly connected to the rod portion 211. The locking member 23 and the limiting portion 212 clamp and fix the limiting platform 112. After the operator adjusts the support member 21 into position, the locking member 23 can be used to lock the relative position of the support member 21 and the support platform 11. This ensures that when welding each flange 200 and pipe fitting 100, the support member 21 can be directly inserted into the mounting hole 201 of the flange 200 without the operator frequently adjusting the position of the support assembly 2, thereby improving welding efficiency and ensuring consistency.

[0045] In this embodiment, the support member 21 is a screw, the adjusting member 22 is an adjusting nut, and the locking member 23 is a locking nut. The screw cap is the limiting part 212, and the threaded rod of the screw is the rod part 211. The screw cap is slidably disposed in the slide groove 111 and limited by the limiting platform 112. The adjusting nut and the locking nut are both sleeved on the threaded rod and threadedly connected to the threaded rod.

[0046] The operator can slide the screw to the appropriate position according to the position of the mounting hole 201 of the flange 200 to be welded, and then use the locking nut to fix the screw to the support 11. Then, adjust the position of the adjusting nut according to the length of the pipe 100 protruding from the flange 200. After adjustment, the pipe 100 can be sleeved on the positioning post 12 and the flange 200 can be sleeved on the pipe 100. At the same time, the threaded rod passes through the mounting hole 201 of the flange 200. When the flange 200 abuts against the adjusting nut, the pipe 100 and the flange 200 can be welded.

[0047] In this embodiment, the positioning post 12 is detachably connected to the support platform 11, such as by plug-in or threaded connection, so that the appropriate positioning post 12 can be replaced according to the inner diameter of the pipe 100, which further improves the applicability of the welding fixture.

[0048] Understandably, when welding, operators need to hold the welding fixture in one hand and the welding torch in the other. This makes it difficult for the operator to simultaneously maintain the stability of both pipe fitting 100 and flange fitting 200; any movement of either will affect the welding quality. Figure 2 and Figure 3 As shown, in order to solve the above problems, the welding fixture also includes a clamping assembly 3. The clamping assembly 3 includes two clamping members 31. The two clamping members 31 are slidably disposed on the support platform 11 and located on opposite sides of the positioning column 12. The two clamping members 31 clamp and fix the pipe fitting 100.

[0049] The pipe fitting 100 is clamped by the two clamping parts 31 of the clamping assembly 3 to fix the pipe fitting 100 on the base 1. The operator only needs to hold the support table 11 while pressing or pinching the flange 200. At this time, both the flange 200 and the pipe fitting 100 are in a stable state, which is convenient for welding and less likely to cause welding quality problems.

[0050] Preferably, such as Figure 5 As shown, the clamping assembly 3 also includes two elastic members 32 corresponding to the two clamping members 31. The elastic members 32 elastically abut against the corresponding clamping members 31, so that the two clamping members 31 move closer to each other. The elastic members 32 can drive the two clamping members 31 to clamp and fix the pipe fitting 100, and ensure that the two clamping members 31 always have clamping force, ensuring critical stability. It is also suitable for pipe fittings 100 of different diameters, with high applicability.

[0051] Furthermore, the clamping member 31 includes a guide wall 311 and a clamping wall 312. The guide wall 311 is disposed above the clamping wall 312 and connected to the clamping wall 312. Along the direction close to the support platform 11, the distance between the two guide walls 311 of the two clamping members 31 gradually decreases, and the clamping walls 312 of the two clamping members 31 clamp and fix the pipe fitting 100.

[0052] When the operator places the fitting 100 onto the positioning post 12, the outer edge of the bottom of the fitting 100 slides against the guide wall 311, driving the two clamping members 31 to compress the corresponding elastic members 32 and move away from each other, eliminating the need for the operator to manually slide the clamping members 31, thus further improving efficiency; when the fitting 100 enters between the two clamping walls 312 and abuts against the support platform 11, the fitting 100 is installed in place, and the two clamping members 31 clamp and fix the fitting 100.

[0053] like Figure 5 As shown, the base 1 is provided with a limiting wall 113, and the clamping member 31 is connected to a guide post 33. The guide post 33 passes through the limiting wall 113, and the elastic member 32 is sleeved on the guide post 33 and abuts against the limiting wall 113. The limiting wall 113 can fix the elastic member 32, so that the elastic member 32 can drive the clamping member 31 to clamp the fixed pipe 100. The limiting wall 113 can also provide guidance for the clamping member 31 through the guide post 33, ensuring the stability of the movement of the clamping member 31. At the same time, the guide post 33 can also support the elastic member 32 to prevent the elastic member 32 from bending or twisting.

[0054] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A welding fixture for welding a flange (200) to a pipe fitting (100), characterized in that, include: The base (1) includes a support platform (11) and a positioning column (12). The positioning column (12) is disposed on the support platform (11). The pipe fitting (100) is sleeved on the positioning column (12) and abuts against the support platform (11). The flange (200) is sleeved on the outer periphery of the pipe fitting (100). A support assembly (2) is disposed between the flange (200) and the support platform (11). The length of the support assembly (2) is adjustable to adjust the distance between the flange (200) and the support platform (11).

2. The welding fixture according to claim 1, characterized in that, The support assembly (2) includes a support member (21) and an adjusting member (22). The adjusting member (22) is movably disposed on the support member (21). The support member (21) abuts against the support platform (11), and the adjusting member (22) abuts against the flange member (200).

3. The welding fixture according to claim 2, characterized in that, The flange (200) includes a mounting hole (201), and the support (21) passes through the mounting hole (201) to position the flange (200).

4. The welding fixture according to claim 3, characterized in that, The support member (21) is slidably connected to the support platform (11) to adjust the distance between the support member (21) and the positioning column (12).

5. The welding fixture according to claim 4, characterized in that, The support platform (11) has a sliding groove (111), and a limiting platform (112) protrudes from the side wall of the sliding groove (111). The support member (21) includes a rod (211) and a limiting part (212). The limiting part (212) is slidably disposed in the sliding groove (111). The limiting platform (112) is configured to slide against the limiting part (212) to restrict the limiting part (212) in the sliding groove (111). The adjusting member (22) is disposed on the rod (211).

6. The welding fixture according to claim 5, characterized in that, The support assembly (2) further includes a locking member (23), which is sleeved on the rod (211) and threadedly connected to the rod (211). The locking member (23) and the limiting part (212) clamp and fix the limiting platform (112).

7. The welding fixture according to claim 1, characterized in that, The welding fixture includes at least two sets of the support components (2), which are spaced apart around the positioning column (12).

8. The welding fixture according to any one of claims 1 to 7, characterized in that, The welding fixture also includes a clamping assembly (3), which includes two clamping members (31). The two clamping members (31) are slidably disposed on the support platform (11) and located on opposite sides of the positioning column (12). The two clamping members (31) clamp and fix the pipe fitting (100).

9. The welding fixture according to claim 8, characterized in that, The clamping assembly (3) also includes two elastic members (32) that correspond one-to-one with the two clamping members (31). The elastic members (32) elastically abut against the corresponding clamping members (31) so that the two clamping members (31) move closer to each other.

10. The welding fixture according to claim 9, characterized in that, The clamping member (31) includes a guide wall (311) and a clamping wall (312). The guide wall (311) is disposed above the clamping wall (312) and connected to the clamping wall (312). Along the direction close to the support platform (11), the distance between the two guide walls (311) of the two clamping members (31) gradually decreases, and the clamping walls (312) of the two clamping members (31) clamp and fix the pipe fitting (100).

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