A laser welding positioning assembly for heating and plumbing ducts

By designing a laser welding positioning assembly with a bracket and welding positioning structure, the automatic positioning of the welding torch and the circumferential rotation of the HVAC pipe are achieved using an electric push rod and a worm gear set. This solves the problem of insufficient welding positioning efficiency in existing HVAC pipes and improves welding efficiency and applicability.

CN224359512UActive Publication Date: 2026-06-16CHINA ELECTRONICS SYST ENG NO 2 CONSTR

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA ELECTRONICS SYST ENG NO 2 CONSTR
Filing Date
2025-06-26
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

Existing HVAC duct welding positioning components cannot effectively position the welding torch and weld, resulting in insufficient welding efficiency.

Method used

A laser welding positioning assembly including a bracket and a welding positioning structure was designed. It realizes automatic positioning of the welding torch and circumferential rotation of the HVAC pipe through an electric push rod and a worm gear set, and combines universal wheels and wheel stoppers for movement positioning.

🎯Benefits of technology

It enables precise positioning and automated welding of the welding torch and HVAC pipe welds, improving welding efficiency and applicability, and is suitable for HVAC pipes of different sizes.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224359512U_ABST
    Figure CN224359512U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of heating and ventilation pipeline processing, especially discloses a laser welding positioning assembly of heating and ventilation pipeline, which comprises a support, a welding positioning structure is arranged on the inner side of the support, the welding positioning structure comprises a U-shaped assembly positioning block group, annular blocks are symmetrically and fixedly installed on the inner side of the U-shaped assembly positioning block group, annular grooves are formed in the interiors of the two annular blocks, rotating rings are slidably installed in the interiors of the two annular grooves, a ring body is fixedly installed between the two rotating rings, the ring body is slidably installed with the U-shaped assembly positioning block group, a worm gear set is arranged on the circumferential surface of the ring body, the welding positioning structure is arranged, so that the staff can open the electric push rod, adjust the weld position between the welding gun head and the heating and ventilation pipeline, when the welding gun reaches the effective welding area, the staff can close the electric push rod at this time, thereby completing the positioning of the effective welding area between the welding gun and the heating and ventilation pipeline weld, so that the welding of any size can be realized, and the applicability is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of HVAC pipe processing technology, and in particular to a laser welding positioning component for HVAC pipes. Background Technology

[0002] Heating, ventilation, and air conditioning (HVAC) ducts are piping systems used to transport media such as air, hot water, and steam. They play a crucial role in regulating the indoor environment of buildings. HVAC ducts of different sizes are usually selected based on the pipeline technology to achieve maximum transport efficiency.

[0003] A search of Chinese patent publication number "CN214685067U" reveals "a tooling for welding HVAC pipes". This tooling, through the coordinated arrangement of a movable frame, a bidirectional threaded rod, a first slide groove, a second slide groove, a guide rod, a first motor, a pressing mechanism, and an adjusting mechanism, can drive a transmission roller to rotate. The transmission roller then drives a belt to drive the belt through each transmission roller, thereby enabling the belt to rotate each rotating roller, causing the pipe located on the welding seat to rotate, thus improving the convenience of pipe welding.

[0004] Based on the above search and existing technology, it was found that the above patent has certain defects. When using this tooling, it is impossible to complete the positioning between the welding torch and the weld seam of the HVAC pipe. Therefore, manual operation is required for welding, resulting in insufficient welding efficiency, which needs to be improved. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a laser welding positioning component for HVAC ducts, which solves the technical problem of insufficient welding efficiency of existing positioning components.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A laser welding positioning assembly for HVAC ducts, including a bracket;

[0010] The bracket has a welding positioning structure on its inner side;

[0011] The welding positioning structure includes a U-shaped assembly positioning block group. Annular blocks are symmetrically fixedly installed on the inner side of the U-shaped assembly positioning block group. Each of the two annular blocks has an annular groove inside. A rotating ring is slidably installed inside each of the two annular grooves. A ring body is fixedly installed between the two rotating rings. The ring body is slidably installed with the U-shaped assembly positioning block group. A worm gear tooth set is provided on the circumferential surface of the ring body. An electric push rod and a connecting block are fixedly installed on the inner side of the ring body. A welding torch holder is fixedly installed on the output shaft of the electric push rod. A welding torch can be fixed on the welding torch holder. Opening the electric push rod can adjust the welding torch on the welding torch holder.

[0012] Preferably, an annular plate is fixedly installed between the electric push rod and the connecting block, and the welding gun holder is located inside the annular plate.

[0013] Preferably, a fixing plate assembly is fixedly installed between the two annular blocks, a worm gear is rotatably installed between the fixing plate assemblies, a motor is fixedly installed on the side wall of the fixing plate assemblies, the output shaft of the motor is fixedly installed with the worm gear, and the worm gear meshes with the worm wheel gear set.

[0014] Preferably, the lower end of the bracket is provided with a set of universal wheels and a wheel stopper, which is adapted to the set of universal wheels.

[0015] (III) Beneficial Effects

[0016] Firstly, by setting up a welding positioning structure, workers can turn on the electric push rod to adjust the position of the weld between the welding torch head and the HVAC pipe. When the welding torch reaches the effective welding area, the workers can turn off the electric push rod, thereby completing the positioning of the effective welding area between the welding torch and the HVAC pipe weld, enabling welding of any size and improving applicability.

[0017] Secondly, by setting up a welding positioning structure, this component can complete the positioning of the effective welding area between the welding torch and the weld seam of the HVAC pipe, as well as complete the automated circumferential rotation motion when welding between HVAC pipes, which greatly improves the welding efficiency when using this component. Attached Figure Description

[0018] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a three-dimensional exploded view of the structure of this utility model.

[0021] Figure 3 This is an exploded structural diagram of the annular block connection of this utility model;

[0022] Figure 4 This is an exploded structural diagram of the ring plate connection of this utility model.

[0023] Legend: 11. Bracket; 12. U-shaped assembly positioning block group; 13. Ring block; 14. Ring groove; 15. Rotary ring; 16. Ring body; 17. Worm gear group; 18. Electric push rod; 19. Welding gun holder; 21. Connecting block; 22. Ring plate; 23. Fixing plate group; 24. Worm; 25. Motor; 26. Universal wheel group; 27. Wheel stop. Detailed Implementation

[0024] This application provides a laser welding positioning component for HVAC ducts, effectively solving the technical problem of insufficient welding efficiency in existing positioning components. By setting a welding positioning structure, the operator can activate the electric push rod to adjust the weld position between the welding torch head and the HVAC duct. When the welding torch reaches the effective welding area, the operator can deactivate the electric push rod, thereby completing the positioning of the effective welding area between the welding torch and the HVAC duct weld. This allows for welding of any size, improving applicability. Furthermore, by setting a welding positioning structure, the component can complete the positioning of the effective welding area between the welding torch and the HVAC duct weld, as well as the automated circumferential rotation motion during welding between HVAC ducts, greatly improving the welding efficiency of the component.

[0025] Example

[0026] like Figures 1-4 As shown, the technical solution in this application embodiment effectively solves the technical problem of insufficient welding efficiency of existing positioning components. The overall idea is as follows:

[0027] To address the problems existing in the prior art, this utility model provides a laser welding positioning assembly for HVAC ducts, including a bracket 11;

[0028] The bracket 11 has a welding positioning structure on its inner side;

[0029] The welding positioning structure includes a U-shaped assembly positioning block group 12. Annular blocks 13 are symmetrically fixedly installed on the inner side of the U-shaped assembly positioning block group 12. Annular grooves 14 are opened inside each of the two annular blocks 13. Rotating rings 15 are slidably installed inside each of the two annular grooves 14. A ring body 16 is fixedly installed between the two rotating rings 15. The ring body 16 is slidably installed with the U-shaped assembly positioning block group 12. A worm gear tooth group 17 is provided on the circumferential surface of the ring body 16. An electric push rod 18 and a connecting block 21 are fixedly installed on the inner side of the ring body 16. A welding torch holder 19 is fixedly installed on the output shaft of the electric push rod 18. A welding torch can be fixed on the welding torch holder 19. Opening the electric push rod 18 can adjust the welding torch on the welding torch holder 19.

[0030] By setting up a welding positioning structure, the operator can open the electric push rod 18 to adjust the position of the weld between the welding torch head and the HVAC pipe. When the welding torch reaches the effective welding area, the operator can close the electric push rod 18, thereby completing the positioning of the effective welding area between the welding torch and the HVAC pipe weld, enabling welding of any size and improving applicability.

[0031] An annular plate 22 is fixedly installed between the electric push rod 18 and the connecting block 21, and the welding gun holder 19 is located inside the annular plate 22.

[0032] By setting an annular plate 22 between the electric push rod 18 and the connecting block 21, the welding slag of the welding torch will not fall into the gap between the rotating ring 15 and the ring body 16 in the U-shaped assembly positioning block group 12 when welding the HVAC pipe, thus improving reliability.

[0033] A fixed plate assembly 23 is fixedly installed between two annular blocks 13. A worm gear 24 is rotatably installed between the fixed plate assemblies 23. A motor 25 is fixedly installed on the side wall of the fixed plate assembly 23. The output shaft of the motor 25 is fixedly installed with the worm gear 24. The worm gear 24 is meshed with the worm wheel gear set 17.

[0034] By turning on the motor 25, the output shaft of the motor 25 can drive the worm gear 24 to rotate and mesh with the worm gear set 17, so that the ring body 16 drives the rotating ring 15 to slide inside the ring groove 14, thereby driving the electric push rod 18, the welding torch holder 19, and the welding torch as a whole to rotate around the center of the ring block 13, completing the circumferential rotation motion during the welding of HVAC pipes and improving automation.

[0035] The lower end of the bracket 11 is provided with a set of universal wheels 26 and a wheel stopper 27, which is adapted to the set of universal wheels 26.

[0036] By setting up the caster wheel assembly 26 and the wheel stopper 27, the entire assembly can be moved to the welding area between the HVAC pipes that need to be welded and positioned, which greatly improves the overall flexibility of the device during use.

[0037] Working principle:

[0038] First, during use, the operator can move the entire component to the welding area between the HVAC pipes to be welded using the casters 26. Then, the casters 26 can be locked using the wheel stopper 27 to position the component in that area. The operator can then install the welding torch on the welding torch holder 19 and turn on the electric push rod 18, causing the output shaft of the electric push rod 18 to extend the welding torch holder 19 and adjust the position of the welding torch head and the weld seam between the HVAC pipes. When the welding torch reaches the effective welding area, the operator can turn off the electric push rod 18, thus completing the positioning of the effective welding area between the welding torch and the weld seam of the HVAC pipes.

[0039] The second step is for the staff to turn on the motor 25, so that the output shaft of the motor 25 drives the worm 24 to rotate and mesh with the worm gear set 17, so that the ring body 16 drives the rotating ring 15 to slide inside the ring groove 14, thereby driving the electric push rod 18, the welding gun holder 19, and the welding gun as a whole to rotate around the center of the ring block 13, completing the circumferential rotational motion during the welding of the HVAC pipe.

[0040] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. 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. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A laser welding positioning assembly for HVAC ducts, comprising a bracket (11), characterized in that... ; The bracket (11) has a welding positioning structure on its inner side; The welding positioning structure includes a U-shaped assembly positioning block group (12), and annular blocks (13) are symmetrically fixedly installed on the inner side of the U-shaped assembly positioning block group (12). Annular grooves (14) are opened inside the two annular blocks (13), and rotating rings (15) are slidably installed inside the two annular grooves (14). Among them, a ring body (16) is fixedly installed between the two rotating rings (15), the ring body (16) is slidably installed with the U-shaped assembly positioning block group (12), the circumferential surface of the ring body (16) is provided with a worm gear tooth group (17), an electric push rod (18) and a connecting block (21) are fixedly installed on the inner side of the ring body (16), and a welding gun holder (19) is fixedly installed on the output shaft of the electric push rod (18).

2. The laser welding positioning assembly for HVAC ducts as described in claim 1, characterized in that, The welding torch can be fixed on the welding torch holder (19), and the opening of the electric push rod (18) can drive the welding torch on the welding torch holder (19) to be adjusted.

3. The laser welding positioning assembly for HVAC ducts as described in claim 1, characterized in that, A ring plate (22) is fixedly installed between the electric push rod (18) and the connecting block (21); The welding gun holder (19) is located inside the ring plate (22).

4. A laser welding positioning assembly for HVAC ducts as described in any one of claims 1-3, characterized in that, A fixing plate assembly (23) is fixedly installed between the two annular blocks (13), and a worm gear (24) is rotatably installed between the fixing plate assemblies (23); A motor (25) is fixedly installed on the side wall of the fixing plate assembly (23).

5. The laser welding positioning assembly for HVAC ducts as described in claim 4, characterized in that, The output shaft of the motor (25) is fixedly installed with the worm gear (24); The worm (24) is meshed with the worm gear set (17).

6. The laser welding positioning assembly for HVAC ducts as described in claim 1, characterized in that, The lower end of the bracket (11) is provided with a set of universal wheels (26), and the lower end of the bracket (11) is provided with a wheel stop (27); The wheel stop (27) is adapted to the caster wheel assembly (26).