Low-temperature welding clamp
The improved low-temperature welding fixture solves the problems of welding quality and inaccurate copper tube fixation in low-temperature welding environments, ensures the safety of the welding gun, and achieves efficient low-temperature welding and safety protection.
Patent Information
- Application Number
- CN202423303482.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing welding fixtures cannot effectively maintain low temperatures in low-temperature welding environments, resulting in excessively high temperatures in the welding area and affecting welding quality; the fixtures are not precise enough in fixing copper pipe parts, leading to displacement and sealing problems; and welding guns are easily damaged and pose safety hazards if left unattended.
A low-temperature welding fixture is designed, comprising a fixture body, a cooling tank, and a welding gun fixture. The fixture body is provided with a fixture base, a fixture platform, a positioning groove, and a positioning pin. The cooling tank is provided with a water inlet and a water outlet. The welding gun fixture is located on the outer surface of the cooling tank. Support protrusions and support feet provide stability. A filter-type adsorption layer filters impurities.
Protecting welding quality in low-temperature environments ensures precise fixing of copper pipe parts, prevents displacement, improves welding accuracy and sealing, protects the welding torch, and enhances cooling and welding efficiency.
Smart Images
Figure CN223656348U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of welding fixture technology, and specifically relates to a low-temperature welding fixture. Background Technology
[0002] In the manufacturing and repair of air conditioners, the welding of copper pipes is a crucial step. Traditional copper pipe welding fixtures are often not designed for low-temperature welding environments.
[0003] For welding copper pipes in air conditioning systems, especially when using low-temperature welding processes (such as welding with certain silver-containing low-temperature welding rods), ordinary welding fixtures have the following problems:
[0004] Firstly, existing welding fixtures cannot effectively maintain a low-temperature environment. During the welding process, heat is easily and rapidly conducted, resulting in excessively high temperatures in the welding area, which affects the welding quality and causes local deformation of the copper tube and uneven flow of solder.
[0005] Secondly, the existing welding fixtures are not precise and secure enough in fixing copper pipe parts, which makes the copper pipe parts prone to displacement during welding, affecting the accuracy and sealing of the welding, and thus causing malfunctions such as refrigerant leakage in the air conditioning system.
[0006] Thirdly, in welding operations, due to the extremely high frequency of use of welding guns, welders often simply place the welding guns haphazardly on the workbench during welding breaks. This not only easily leads to damage to the welding guns from impacts, but also, since the welding guns are at high temperatures after the welding operation is completed, leaving them haphazardly on the workbench may cause various safety problems.
[0007] Therefore, to address the shortcomings of the existing technology, a fixture specifically designed for low-temperature welding of air conditioning copper pipe parts is needed to solve these problems. Utility Model Content
[0008] The purpose of this utility model is to provide a low-temperature welding fixture to solve the technical problems mentioned in the background art.
[0009] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0010] A low-temperature welding fixture includes a fixture body, a cooling tank, and a welding torch fixture. The fixture body is disposed in the cooling tank, and the welding torch fixture is disposed on the cooling tank. The welding torch fixture is disposed on the side of the outer surface of the cooling tank.
[0011] The fixture body includes a fixture base, a fixture table, a positioning groove, and a positioning pin;
[0012] The bottom of the fixture base is fixed in the cooling tank, the fixture platform is fixed in the top of the fixture base, the positioning groove is provided on the fixture platform, the positioning groove is set against the top surface of the fixture platform, the positioning pin is vertically set on the top surface of the fixture platform, and the positioning pin is symmetrically arranged on both sides of the opening of the positioning groove.
[0013] The welding torch fixture includes a bracket and a fixing frame;
[0014] The bracket is fixed on the cooling tank, and the bracket is located on the outer surface of the cooling tank. The fixing frame is mounted on the bracket.
[0015] The above technical solution has the following advantages: Compared with the existing technology, a low-temperature welding fixture has made effective improvements to the overall structure and assembly method of the fixture body, cooling tank and welding gun fixture.
[0016] By placing the main body of the fixture inside a cooling tank, the cooling tank can create a low-temperature environment for the welding area during the welding process. This effectively protects the copper tube material or special alloy material from the effects of high temperatures during welding, reduces material deformation and performance degradation, and improves welding quality. This addresses the technical problem that "existing welding fixtures cannot effectively maintain a low-temperature environment, and heat is easily and rapidly conducted during the welding process, resulting in excessively high temperatures in the welding area, affecting welding quality, causing local deformation of the copper tube, uneven solder flow, and other issues."
[0017] By combining a fixture base, fixture table, positioning groove, and positioning pin into the fixture body, the positioning groove and positioning pin on the fixture body work together. The positioning groove determines the approximate position of the workpiece in the plane, while the positioning pin further restricts the movement and rotation of the workpiece in the direction perpendicular to the plane. This ensures that the copper pipe parts will not shift during welding, ensuring the accuracy and sealing of the welding, thereby preventing refrigerant leaks and other malfunctions in the air conditioning system. This solves the technical problem that "existing welding fixtures do not fix copper pipe parts accurately and securely enough, which makes the copper pipe parts prone to shift during welding, affecting the accuracy and sealing of the welding, and thus leading to refrigerant leaks and other malfunctions in the air conditioning system."
[0018] By adding a welding torch clamp to one side of the outer surface of the cooling tank, welders can secure the welding torch to the clamp during welding breaks to prevent damage from impacts and ensure the safety of the welding torch after welding. This addresses the technical problem that "with existing welding clamps, due to the high frequency of welding torch use, welders often simply place the welding torch haphazardly on the workbench during welding breaks, which not only easily leads to damage from impacts but also poses various safety risks due to the high temperature of the welding torch after welding."
[0019] In a preferred embodiment, the bottom of the clamp base is provided with support protrusions, and the number of support protrusions is at least four, which are symmetrically arranged on the bottom of the clamp base.
[0020] The above technical solution has the following advantages: by providing at least four support protrusions at the bottom of the fixture base, the stability of the fixture in the cooling tank is improved. Also, since the support protrusions separate the fixture base from the bottom of the cooling tank by a certain distance, this helps to reduce the heat transfer efficiency between the low-temperature medium in the cooling tank and the fixture base in a low-temperature welding environment.
[0021] In a preferred embodiment, the number of positioning slots is several, and the positioning slots are evenly distributed along the periphery of the top of the fixture table.
[0022] The above technical solution has the following advantages: by distributing positioning slots evenly around the top periphery of the fixture table, the fixture can simultaneously position multiple workpieces. In some complex welding structures, it is often necessary to weld multiple parts at the same time. This design can meet the need to fix multiple workpieces at the same time and improve welding efficiency.
[0023] In a preferred embodiment, the cooling tank is provided with a water inlet and a water outlet; the water inlet is located at the bottom of one side of the cooling tank, and the water outlet is located at the top of the other side of the cooling tank.
[0024] The above technical solution has the following advantages: By setting the water inlet close to the bottom of the cooling tank and the drain outlet close to the top of the cooling tank, it is ensured that the coolant can form an effective circulation in the cooling tank. When the coolant enters from the water inlet, due to its low position, the coolant can gradually fill the bottom of the cooling tank under the action of gravity. Then, as the coolant is continuously injected, it gradually fills the entire cooling tank space. This bottom-up filling method can ensure that the coolant is in full contact with the fixture body, further improving the cooling efficiency.
[0025] In a preferred embodiment, a filter-type adsorption layer is provided at the water inlet and the water outlet.
[0026] The above technical solution has the following advantages: By setting filter-type adsorption layers at the inlet and outlet, impurities in the coolant can be effectively filtered. During the circulation process, the coolant may be mixed with external dust, metal welding shavings and other particles, or sediment generated during long-term storage. If these impurities enter the cooling tank, they may accumulate in the cooling pipes, reduce cooling efficiency, or even block the cooling pipes, affecting the normal operation of the entire cooling system.
[0027] In a preferred embodiment, the bottom of the cooling tank is further provided with support feet, and the number of support feet is at least four, which are symmetrically arranged at the bottom of the cooling tank.
[0028] The above technical solution has the following advantages: by setting at least four symmetrically distributed support feet at the bottom of the cooling tank, a stable support structure can be provided for the cooling tank when it is placed and used. Attached Figure Description
[0029] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0030] Figure 1 This is a top view of the overall structure and assembly of a low-temperature welding fixture provided in Embodiment 1 of the present invention;
[0031] Figure 2 This is a cross-sectional view of the fixture body and cooling tank assembly provided in Embodiment 1 of this utility model;
[0032] Figure 3 This is a side view of the fixing frame provided in Embodiment 1 of this utility model;
[0033] Explanation of reference numerals in the attached figures;
[0034] 1-Clamp body; 11-Clamp base; 12-Clamp table; 13-Positioning groove; 14-Positioning pin; 2-Cooling tank; 21-Water inlet; 22-Drain outlet; 3-Welding torch clamp; 31-Bracket; 32-Fixing frame; 4-Support protrusion; 5-Support foot. Detailed Implementation
[0035] Example 1
[0036] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description of this utility model is provided in conjunction with the embodiments.
[0037] like Figures 1 to 3 As shown, a low-temperature welding fixture includes a fixture body 1, a cooling tank 2, and a welding torch fixture 3. The fixture body 1 is disposed in the cooling tank 2, and the welding torch fixture 3 is disposed on the cooling tank 2. The welding torch fixture 3 is disposed on the side of the outer surface of the cooling tank 2.
[0038] The fixture body 1 includes a fixture base 11, a fixture table 12, a positioning groove 13, and a positioning pin 14;
[0039] The bottom of the fixture base 11 is fixed in the cooling tank 2, the fixture platform 12 is fixed in the top of the fixture base 11, the positioning groove 13 is provided on the fixture platform 12, the positioning groove 13 is set against the top surface of the fixture platform 12, and the positioning pin 14 is vertically set on the top surface of the fixture platform 12, and the positioning pin 14 is symmetrically set on both sides of the opening of the positioning groove 13.
[0040] The welding torch fixture 3 includes a bracket 31 and a fixing frame 32;
[0041] The bracket 31 is fixedly mounted on the cooling tank 2, with the bracket 31 positioned against the outer surface of the cooling tank 2. A fixing frame 32 is mounted on the bracket 31. By placing the fixture body 1 within the cooling tank 2, a low-temperature environment is created in the cooling tank 2 during welding, effectively protecting the copper pipe material or special alloy material from high-temperature effects during welding, reducing material deformation and performance degradation, and improving welding quality. The fixture body 1 is constructed using a combination of a fixture base 11, a fixture table 12, a positioning groove 13, and a positioning pin 14. The positioning groove 13 and positioning pin on the fixture body 1... The positioning groove 13, in conjunction with the positioning pin 14, determines the approximate position of the workpiece in the plane, while the positioning pin 14 further restricts the movement and rotation of the workpiece in the direction perpendicular to the plane, ensuring that the copper pipe parts will not shift during welding, ensuring the accuracy and sealing of the welding, thereby preventing malfunctions such as refrigerant leakage in the air conditioning system; by adding a welding torch clamp 3 to one side of the outer surface of the cooling tank 2, it is ensured that during the intervals of welding operations, the welder can place the welding torch on the welding torch clamp 3 for fixation at any time, to prevent the welding torch from being damaged by collision, and to ensure the safety of the welding torch after the welding operation is completed.
[0042] In this embodiment, the bottom of the fixture base 11 is provided with support protrusions 4, and the number of support protrusions 4 is at least four. The support protrusions 4 are symmetrically arranged on the bottom of the fixture base 11. By providing at least four support protrusions 4 on the bottom of the fixture base 11, the stability of the fixture in the cooling tank 2 is improved. Also, since the support protrusions 4 separate the fixture base 11 from the bottom of the cooling tank 2 by a certain distance, this helps to reduce the heat transfer efficiency between the low-temperature medium in the cooling tank 2 and the fixture base in a low-temperature welding environment.
[0043] In this embodiment, the number of positioning slots 13 is several, and the positioning slots 13 are evenly distributed along the top periphery of the fixture table 12. By distributing the positioning slots 13 evenly along the top periphery of the fixture table 12 and having several of them, the fixture can position multiple workpieces at the same time. In some complex welding structures, it is often necessary to weld multiple parts at the same time. This design can meet the need to fix multiple workpieces at the same time and improve the welding efficiency.
[0044] In this embodiment, the cooling tank 2 is provided with an inlet 21 and a drain outlet 22; the inlet 21 is located at the bottom of one side of the cooling tank 2, and the drain outlet 22 is located at the top of the other side of the cooling tank 2; by setting the inlet 21 close to the bottom of the cooling tank 2 and the drain outlet 22 close to the top of the cooling tank 2, it is ensured that the coolant can form an effective circulation in the cooling tank 2. When the coolant enters from the inlet 21, due to its low position, the coolant can gradually fill the bottom of the cooling tank 2 under the action of gravity. Then, as the coolant is continuously injected, it gradually fills the entire space of the cooling tank 2. This bottom-up filling method can ensure that the coolant is in full contact with the fixture body 1, further improving the cooling efficiency.
[0045] In this embodiment, filter-type adsorption layers are provided at the water inlet 21 and the drain outlet 22. By setting filter-type adsorption layers at the water inlet 21 and the drain outlet 22 respectively, impurities in the coolant can be effectively filtered. During the circulation process, the coolant may be mixed with external dust, metal welding shavings and other particles, or sediment generated by the coolant itself during long-term storage. If these impurities enter the cooling tank 2, they may accumulate in the cooling pipes, reduce cooling efficiency, or even block the cooling pipes, affecting the normal operation of the entire cooling system.
[0046] In this embodiment, the bottom of the cooling tank 2 is also provided with support feet 5. The number of support feet 5 is at least four, and they are symmetrically arranged at the bottom of the cooling tank 2. By providing at least four symmetrically distributed support feet 5 at the bottom of the cooling tank 2, a stable support structure can be provided for it when the cooling tank 2 is placed and used.
[0047] In this embodiment, the cooling tank 2 adopts a double-layer structure. The outer surface of the cooling tank 2 is made of stainless steel shell, and the inner surface of the cooling tank 2 is made of copper alloy shell. The outer surface of the cooling tank 2 is made of stainless steel shell to ensure that it can withstand possible external collisions, extrusions and other mechanical forces, and to protect the internal structure of the cooling tank 2 from damage. The inner surface of the cooling tank 2 is made of copper alloy shell, and copper alloy has extremely high thermal conductivity.
[0048] It should be noted that, in this document, 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.
[0049] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only used to help understand the method and core ideas of this utility model.
[0050] The above are merely preferred embodiments of this utility model. It should be noted that, due to the limitations of written expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principle of this utility model, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered as protection of this utility model.
Claims
1. A low-temperature welding fixture, characterized in that, It includes a fixture body (1), a cooling tank (2) and a welding torch fixture (3). The fixture body (1) is located in the cooling tank (2), and the welding torch fixture (3) is located on the cooling tank (2). The welding torch fixture (3) is located on the outer surface of the cooling tank (2). The fixture body (1) includes a fixture base (11), a fixture table (12), a positioning groove (13), and a positioning pin (14); The bottom of the fixture base (11) is fixed in the cooling tank (2), the fixture platform (12) is fixed on the top of the fixture base (11), the positioning groove (13) is provided on the fixture platform (12), the positioning groove (13) is provided against the top surface of the fixture platform (12), the positioning pin (14) is vertically provided on the top surface of the fixture platform (12), and the positioning pin (14) is symmetrically provided on both sides of the opening of the positioning groove (13); The welding torch clamp (3) includes a bracket (31) and a fixing frame (32); The bracket (31) is fixed on the cooling tank (2), and the bracket (31) is set on the side of the outer surface of the cooling tank (2). The fixing frame (32) is set on the bracket (31).
2. The low-temperature welding fixture according to claim 1, characterized in that, The bottom of the clamp base (11) is provided with support protrusions (4), and the number of support protrusions (4) is at least four. The support protrusions (4) are symmetrically arranged at the bottom of the clamp base (11).
3. A low-temperature welding fixture according to claim 1, characterized in that, The number of positioning slots (13) is several, and the positioning slots (13) are evenly distributed around the top periphery of the fixture table (12).
4. A low-temperature welding fixture according to claim 1, characterized in that, The cooling tank (2) is provided with a water inlet (21) and a drain outlet (22); the water inlet (21) is located at the bottom of one side of the cooling tank (2), and the drain outlet (22) is located at the top of the other side of the cooling tank (2).
5. A low-temperature welding fixture according to claim 4, characterized in that, The inlet (21) and outlet (22) are equipped with filter-type adsorption layers.
6. A low-temperature welding fixture according to claim 1, characterized in that, The bottom of the cooling tank (2) is also provided with support feet (5), and the number of support feet (5) is at least four, and they are symmetrically arranged at the bottom of the cooling tank (2).