Auxiliary tool for welding water-cooling spray pipe
By designing auxiliary tooling for welding water-cooled nozzles, and using components such as copper liners and connecting frame plates to adjust the gap and optimize the heat conduction path, the problems of deformation and dimensional control during the welding process of water-cooled nozzles were solved, thereby improving welding quality and structural stability.
Patent Information
- Application Number
- CN202520311747.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-02-25
AI Technical Summary
The welding process of water-cooled nozzles presents challenges in controlling deformation and ensuring weld dimensional tolerances, especially in the case of uneven heat-affected zones during electron beam welding, which leads to deformation and dimensional changes.
An auxiliary tooling for welding water-cooled spray pipes is adopted, including a copper liner, screw, plug, inner support block, copper strip and connecting frame plate. By adjusting the gap between the product and the tooling, the heat conduction path of the weld joint is optimized, heat accumulation is reduced, and welding deformation and internal surface tolerance are controlled.
Effectively control the deformation and weld size tolerance during the welding process of water-cooled nozzles, improve welding quality and structural stability, and ensure the size tolerance of the inner surface of electron beam welded products at both ends of the cavity.
Smart Images
Figure CN223762359U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to welding auxiliary tool technical field, concretely is a kind of auxiliary tool for water-cooled nozzle welding. BACKGROUND
[0002] Water-cooled nozzle generally includes inner shell, water jacket and outer shell arranged coaxially in turn from inside to outside. Water jacket and inner shell and outer shell have gaps between them, and these gaps form cooling water channels. At least one water inlet and at least one water outlet are provided on the outer shell, and these water inlets and water outlets are in communication with the cooling water channels. In addition, a circumferential step can be provided between the water jacket and the outer shell to further optimize the flow path of the cooling water. Water-cooled nozzle can be applied to various occasions requiring efficient cooling, such as industrial cooling, automobile cooling, etc. Water-cooled nozzle is a device with advantages of efficient cooling, stable structure, wide application, etc. It has been widely used in many fields and plays an important role. In order to ensure the structural integrity and cooling effect, water-cooled nozzle needs to be welded, and auxiliary tool needs to be used during welding process to ensure welding quality and efficiency.
[0003] In the conventional water-cooled nozzle welding, the weld metal and the base material will undergo cold and hot cycles during the welding process, resulting in shrinkage and expansion, and thus generating welding stress. These stresses may exist in the form of residual stress after welding is completed, which cannot control the deformation amount, causing the workpiece to deform. At the same time, the high temperature generated during electron beam welding process will have a heat-affected zone on the weld and its surrounding area, causing material thermal expansion and shrinkage. If the heat-affected zone is too large or unevenly distributed, it will cause the weld size to change and the inner profile tolerance size to be unable to be guaranteed. Therefore, an auxiliary tool for water-cooled nozzle welding is proposed. SUMMARY
[0004] (I) Technical problem solved
[0005] In view of the deficiencies of the prior art, the utility model provides an auxiliary tool for water-cooled nozzle welding to solve the technical problems of controlling the deformation amount during water-cooled nozzle welding process and controlling the inner profile size tolerance of the electron beam welded product.
[0006] (II) Technical solution
[0007] To achieve the above purpose, the utility model provides the following technical scheme: an auxiliary tool for water-cooled nozzle welding, comprising:
[0008] A copper lining and a screw provided in the inner cavity of the copper lining, and the surface of the screw is provided with a first plug and a second plug, and a nut is threadedly connected to the end of the screw.
[0009] The first inner support block and the second inner support block are disposed on both sides of the inner cavity of the copper liner, and the surfaces of the first inner support block and the second inner support block are respectively in contact with the surfaces of the first plug and the second plug.
[0010] Copper strips are placed at the upper and lower parts of the inner cavity of the copper liner, and the copper strips are in contact with the surface of the first inner support block and the inner wall of the copper liner. By placing the product to be welded, such as a water-cooled nozzle, on the assembled tooling and adjusting the gap between the product to be welded and the auxiliary tooling, the torque of the nut is controlled by a torque wrench. By adjusting the gap, the heat conduction path of the weld joint can be optimized, reducing the accumulation of heat inside the workpiece, thereby reducing welding deformation. In electron beam welding, the adjustment of the gap between the product and the tooling can ensure the alignment quality of the weld joint, thereby controlling the change of weld size and the tolerance of the inner surface. It not only controls the amount of deformation during the welding process of the water-cooled nozzle, but also controls the dimensional tolerance of the inner surface of the electron beam welded product at both ends of the cavity.
[0011] Preferably, the copper liners are in two sets, and the connection between the two sets of copper liners is a T-shaped design, with a connecting frame plate slidably connected to the surface of the copper liners. This allows the connecting frame plate to reciprocate along the surface of the copper liners.
[0012] Preferably, the upper and lower parts of the inner cavity of the connecting frame plate are provided with positioning grooves, and the positioning grooves are slidably connected to the connection points of the copper liner. When the connecting frame plate slides along the surface of the copper liner, the positioning grooves move along the connection points of the copper liner, thereby ensuring that misalignment does not occur during the movement of the connecting frame plate along the copper liner.
[0013] Preferably, the inner wall of the connecting frame plate is provided with secondary through holes evenly distributed, and main through holes are provided on both the front and back sides of the connecting frame plate. The connecting frame plate can perform air intake or exhaust operations through the secondary through holes or the main through holes.
[0014] Preferably, the main through hole and the secondary through hole are connected, and the radius of the main through hole is larger than the radius of the secondary through hole. This allows gas in the main through hole to be discharged outward along the secondary through hole, and at the same time, gas in the secondary through hole can be discharged outward along the main through hole.
[0015] Preferably, each of the main through holes is equipped with a connecting ring at its outer end, and the connecting ring has evenly spaced connecting holes on its front side. External devices, such as vacuum cleaners and blowers, can be connected via the connecting rings, allowing the main and secondary through holes to perform blowing or suction operations. This not only cleans dust and welding slag from the surface of the copper liner, ensuring welding quality and service life, but also facilitates the assembly and disassembly of the connecting frame plate from the copper liner.
[0016] (III) Beneficial Effects
[0017] Compared with the prior art, this utility model provides an auxiliary tooling for welding water-cooled spray pipes, which has the following beneficial effects:
[0018] This auxiliary tooling for welding water-cooled nozzles involves placing the product to be welded, such as the water-cooled nozzle, onto the assembled tooling and adjusting the gap between the product and the tooling. The torque of the nut is controlled by a torque wrench. By adjusting the gap, the heat conduction path of the weld joint can be optimized, reducing heat accumulation inside the workpiece and thus reducing welding deformation. In electron beam welding, adjusting the gap between the product and the tooling ensures the alignment quality of the weld joint, thereby controlling the weld size variation and internal surface tolerance. This not only controls the deformation during the welding process of the water-cooled nozzle but also controls the dimensional tolerances of the inner surface of the electron beam welded product at both ends of the cavity. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the copper liner connection structure of this utility model;
[0021] Figure 3 This is a schematic diagram of the copper liner separation structure of this utility model;
[0022] Figure 4 This is a schematic diagram of the connection structure of the connecting frame plate of this utility model.
[0023] In the diagram: 1. Copper liner; 2. First inner support block; 3. Second inner support block; 4. First plug block; 5. Second plug block; 6. Screw; 7. Copper strip; 8. Nut; 9. Connecting frame plate; 10. Positioning groove; 11. Secondary through hole; 12. Main through hole; 13. Connecting ring. Detailed Implementation
[0024] 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.
[0025] This utility model provides a technical solution: an auxiliary tooling for welding water-cooled spray pipes, including: (See details) Figure 1 , Figure 2 , Figure 3 The copper inner liner 1 and the screw 6 disposed in the inner cavity of the copper inner liner 1, wherein the surface of the screw 6 is respectively provided with a first plug 4 and a second plug 5, and a nut 8 is threadedly connected to the end of the screw 6;
[0026] The first inner support block 2 and the second inner support block 3 are disposed on both sides of the inner cavity of the copper inner liner 1, and the surfaces of the first inner support block 2 and the second inner support block 3 are respectively in contact with the surfaces of the first plug block 4 and the second plug block 5.
[0027] Copper strips 7 are installed at the upper and lower parts of the inner cavity of the copper liner 1, and are in contact with the surface of the first inner support block 2 and the inner wall of the copper liner 1. By placing the product to be welded, such as a water-cooled nozzle, on the assembled tooling and adjusting the gap between the product to be welded and the auxiliary tooling, the torque of the nut 8 is controlled by a torque wrench. By adjusting the gap, the heat conduction path of the weld joint can be optimized, reducing the accumulation of heat inside the workpiece, thereby reducing welding deformation. In electron beam welding, the adjustment of the gap between the product and the tooling can ensure the alignment quality of the weld joint, thereby controlling the change of weld size and the tolerance of the inner surface. It not only controls the amount of deformation during the welding process of the water-cooled nozzle, but also controls the dimensional tolerance of the inner surface of the electron beam welded product at both ends of the cavity.
[0028] Please see Figure 1 The copper inner liner 1 consists of two sets, and the connection between the two sets of copper inner liners 1 is a T-shaped design. A connecting frame plate 9 is slidably connected to the surface of the copper inner liner 1, allowing the connecting frame plate 9 to reciprocate along the surface of the copper inner liner 1.
[0029] Please see Figure 4 The connecting frame plate 9 has positioning grooves 10 on both the upper and lower parts of its inner cavity, and these positioning grooves 10 are slidably connected to the copper inner liner 1. When the connecting frame plate 9 slides along the surface of the copper inner liner 1, the positioning grooves 10 move along the connection point of the copper inner liner 1, thus preventing misalignment during the movement of the connecting frame plate 9 along the copper inner liner 1. The inner wall of the connecting frame plate 9 has evenly distributed secondary through holes 11, and main through holes 12 are provided on both the front and back sides of the connecting frame plate 9. The connecting frame plate 9 can perform air intake or exhaust operations through the secondary through holes 11 or the main through holes 12. The main through holes 12 and secondary through holes 11 are interconnected, and the radius of the main through hole 12 is larger than the radius of the secondary through hole 11. This allows gas in the main through hole 12 to be discharged outwards along the secondary through hole 11, and vice versa. Each main through hole 12 is equipped with a connecting ring 13 at its outer end, and the front of the connecting ring 13 is evenly provided with connecting holes. External equipment, such as a vacuum cleaner and a blower, can be connected through the connecting ring 13, allowing the main through hole 12 and the secondary through hole 11 to perform blowing or suction operations. This not only cleans dust and welding slag from the surface of the copper inner liner 1, ensuring welding quality and service life, but also facilitates the disassembly and assembly of the connecting frame plate 9 and the copper inner liner 1.
[0030] This solution involves placing the product to be welded, such as a water-cooled spray pipe, onto the assembled fixture and adjusting the gap between the product and the auxiliary fixture. The torque of nut 8 is controlled by a torque wrench. By adjusting the gap, the heat conduction path of the weld joint can be optimized, reducing heat accumulation inside the workpiece and thus reducing welding deformation. In electron beam welding, adjusting the gap between the product and the fixture ensures the alignment quality of the weld joint, thereby controlling weld size variations and internal surface tolerances. External equipment, such as a suction fan and a blower, can be connected via the connecting ring 13, allowing the main through hole 12 and the secondary through hole 11 to perform blowing or suction operations, thereby cleaning dust and welding slag from the surface of the copper liner 1.
[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An auxiliary tool for welding a water-cooled nozzle, characterized by, Include: The copper lining (1), and the screw rod (6) arranged in the inner cavity of the copper lining (1), and the surface of the screw rod (6) is respectively provided with the first plug (4) and the second plug (5), and the nut (8) is threadedly connected at the end of the screw rod (6); The first inner support block (2) and the second inner support block (3) are arranged on both sides of the inner cavity of the copper lining (1), and the surface of the first inner support block (2) and the second inner support block (3) is respectively matched with the surface of the first plug (4) and the second plug (5); The red copper strip (7) is arranged on the upper and lower parts of the inner cavity of the copper lining (1), and the surface of the red copper strip (7) is matched with the surface of the first inner support block (2) and the inner wall of the copper lining (1).
2. The water-cooled nozzle welding aid of claim 1, wherein: The copper lining (1) is two groups, and the connecting part of the two groups of copper lining (1) is T-shaped design, and the connecting frame plate (9) is slidably connected on the surface of the copper lining (1).
3. The water-cooled nozzle welding aid of claim 2, wherein: The inner cavity of the connecting frame plate (9) is provided with a positioning groove (10) on the upper and lower parts, and the connecting part between the positioning groove (10) and the copper lining (1) is slidably connected.
4. The water-cooled nozzle welding aid of claim 3, wherein: The inner wall of the connecting frame plate (9) is uniformly provided with a secondary through hole (11), and the front and back surfaces of the connecting frame plate (9) are provided with a primary through hole (12).
5. The water-cooled nozzle welding aid of claim 4, wherein: The primary through hole (12) and the secondary through hole (11) are connected, and the radius of the primary through hole (12) is greater than the radius of the secondary through hole (11).
6. The water-cooled nozzle welding aid of claim 5, wherein: The outer end of the primary through hole (12) is provided with a connecting ring (13), and the front surface of the connecting ring (13) is uniformly provided with a connecting hole.