Radiator brazing tool

Abstract

The utility model belongs to the technical field of radiator production and processing, and particularly discloses a radiator brazing tool which comprises an upper clamping plate, a lower clamping plate and two fixing pieces symmetrically arranged on the two sides of the upper clamping plate, the upper clamping plate and the lower clamping plate are vertically arranged in parallel, the lower end of each fixing piece is connected with the corresponding side of the lower clamping plate, and the upper end of each fixing piece is in threaded connection with a clamping screw. The clamping screw is located above the upper clamping plate, the bottom end face of the clamping screw is tightly attached to the upper end face of the upper clamping plate, and the lower end of the upper clamping plate is connected with a pressing plate through at least one elastic assembly. According to the utility model, the upper clamping plate is pressed through the clamping screw rod, so that the distance between the upper clamping plate and the lower clamping plate is adjusted, and the actual requirements of different products are met; the pressing plate is connected to the lower portion of the upper clamping plate through the elastic assembly, the pressing plate can exert downward pressure on a radiator in the whole brazing process of the radiator under the action of the spring, the situation that gaps exist between stacked parts of the radiator, and the brazing quality is affected is avoided, and therefore the product quality is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of radiator production and processing, and specifically relates to a radiator brazing tool. Background Art

[0002] The brazing of radiators is generally carried out by vacuum brazing and salt bath furnace brazing. During the brazing process, the product needs to be clamped and fixed by a tool. The existing radiator brazing tool includes an upper clamp, a lower clamp, and a plurality of support rods connected between the upper and lower clamps by bolt assembly. When in use, the radiator is fixed between the upper and lower clamps by screwing the bolts to facilitate subsequent brazing and other processing. After the processing is completed, the radiator can be removed by screwing the bolts. However, the tool has certain functional defects during use: (1) It cannot adjust the distance between the upper clamp and the lower clamp, and its use is highly limited and its practicality is low; (2) Due to the expansion during the brazing heating process, gaps are likely to appear between the laminated plates, plate fins and other parts of the radiator, affecting the brazing quality and causing defects such as gaps or pores, discontinuous welds, etc.; (3) The overall height of the radiator will gradually decrease during the brazing process, resulting in the inability of the upper clamp to effectively fix it, thereby affecting the brazing quality of the product. Therefore, there is an urgent need to provide a brazing tool that can freely adjust the distance between the upper and lower clamps according to the actual situation of the product and can always effectively clamp and fix the radiator during the brazing process to ensure product quality. Utility Model Content

[0003] In view of the deficiencies in the background technology, the utility model provides a radiator brazing tool, which can not only freely adjust the distance between the upper and lower clamping plates according to the actual situation of the product, but also can always effectively clamp and fix the radiator during the brazing process, thereby avoiding leakage of the product caused by pores or gaps in the brazing layer of the parts.

[0004] To achieve the above purpose, the technical solution of the utility model is as follows:

[0005] A radiator brazing tool, comprising an upper clamping plate and a lower clamping plate arranged in parallel, characterized in that it also includes two fixing parts symmetrically arranged on both sides of the upper clamping plate, the lower end of each fixing part is connected to the corresponding side of the lower clamping plate, and the upper end is threadedly connected to a clamping screw, the clamping screw is located above the upper clamping plate, and its bottom end surface is tightly fitted with the upper end surface of the upper clamping plate, and the lower end of the upper clamping plate is connected to a pressure plate through at least one group of elastic components.

[0006] Preferably, each of the elastic components includes a guide rod and a spring, one end of the guide rod is connected to the pressure plate, and the other end passes through a guide hole provided on the upper clamping plate, the guide rod is slidably connected to the guide hole, and the spring is sleeved on the guide rod and located between the upper clamping plate and the pressure plate.

[0007] Preferably, the guide rod is threadedly connected to a threaded hole provided on the pressure plate.

[0008] Preferably, one end of the guide rod away from the pressure plate is connected to a first limiting member.

[0009] Preferably, the lower clamping plate is a hollow structure with openings on both sides, and the lower end of each of the fixing members is respectively embedded in the interior of a corresponding side of the lower clamping plate.

[0010] Preferably, two second limiting members are provided inside the lower clamping plate, and the two second limiting members are matched with the two fixing members in a one-to-one correspondence.

[0011] Preferably, the vertical cross-section of each of the fixing members is a U-shaped structure.

[0012] Preferably, each of the fixing members is a height-adjustable U-shaped structure formed by splicing a first L-shaped member and a second L-shaped member.

[0013] Preferably, the second L-shaped member is located below the first L-shaped member and has a cavity inside. The lower end of the first L-shaped member is disposed in the cavity and is fastened to the second L-shaped member by bolts.

[0014] Preferably, at least two first through holes are spaced apart on the first L-shaped member, and a second through hole is provided on the second L-shaped member. The second through hole cooperates with the at least two first through holes and is assembled and connected by bolts.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] (1) The utility model applies pressure to the upper clamping plate by means of a clamping screw to adjust the distance between the upper clamping plate and the lower clamping plate to meet the actual needs of different products; in addition, the height of the fixing part can also be freely adjusted, further expanding the scope of application of the utility model;

[0017] (2) The lower part of the upper clamping plate of the utility model is connected with a pressure plate through an elastic component. Under the action of the spring, the pressure plate can exert downward pressure on the radiator during the whole process of brazing, so as to avoid the gap between the stacked parts of the radiator and affect the brazing quality, thereby ensuring the product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Other features, objectives and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings.

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0021] Figure 3 For this utility model Figure 2 A schematic diagram of the structure at A;

[0022] Figure 4 For this utility model Figure 2 Schematic diagram of the structure at B;

[0023] In the figure: 1, upper clamping plate, 2, lower clamping plate, 3, fixing part, 301, first L-shaped part, 302, second L-shaped part, 4, clamping screw, 5, pressure plate, 6, guide rod, 7, spring, 8, guide hole, 9, threaded hole, 10, first limit part, 11, second limit part, 12, cavity, 13, bolt, 14, first through hole, 15, second through hole, 16, radiator, 1601, oil inlet and outlet pipes. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] In the description of the present invention, it should be understood that the terms "middle", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] like Figure 1 and Figure 2As shown, a radiator brazing tool comprises an upper clamping plate 1 and a lower clamping plate 2 which are arranged in parallel up and down, and two fixing members 3 which are symmetrically arranged on both sides of the upper clamping plate, the lower end of each fixing member is connected to the corresponding side of the lower clamping plate, and the upper end is threadedly connected to a clamping screw 4, which is located above the upper clamping plate, and its bottom end face is tightly fitted with the upper end face of the upper clamping plate, and the lower end of the upper clamping plate is connected to a pressing plate 5 through at least one group of elastic components, and the length of the pressing plate is smaller than the distance between the oil inlet pipe and the oil outlet pipe of the radiator 16. When in use, first place the product on the lower clamping plate, and then tighten the clamping bolt to drive the upper clamping plate to move downward, shortening the distance between it and the lower clamping plate, thereby clamping and fixing the radiator, and when the product is brazed, the pressing plate is always tightly fitted with the upper end face of the radiator under the action of the elastic component, avoiding gaps between the stacked parts of the radiator and affecting the brazing quality.

[0028] Combination Figure 3 As shown, each elastic component includes a guide rod 6 and a spring 7. One end of the guide rod is connected to the pressure plate, and the other end passes through a guide hole 8 provided on the upper clamping plate, and is connected to a first limiter 10 to prevent the guide rod from falling off the upper clamping plate when not in use. The guide rod is slidably connected to the guide hole, and the spring is sleeved on the guide rod and is located between the upper clamping plate and the pressure plate. In the initial stage after the radiator is clamped and fixed by the brazing fixture, the spring is in a compressed state. As the brazing proceeds, the overall height of the radiator will decrease, and the spring drives the pressure plate to move downward synchronously, always exerting downward pressure on the radiator. In this embodiment, a high-temperature spring is used as the spring to avoid deformation and damage due to excessive temperature during the brazing process. In order to facilitate the disassembly and assembly of the guide rod and the pressure plate, a threaded hole 9 is provided on the pressure plate, and the guide rod is threadedly connected to the threaded hole 9.

[0029] like Figure 1 and Figure 2 As shown, the lower clamp is a hollow structure with openings on both sides. The lower end of each fixing member is respectively embedded in the corresponding side of the lower clamp. The fixing member is movably connected with the upper clamp and the lower clamp, which is convenient for disassembly and assembly. Two second limiting members 11 are arranged inside the lower clamp. The two second limiting members correspond to the two fixing members one by one, which is convenient for rapid positioning of the fixing member. When the lower end of the fixing member is inserted into the lower clamp, the second limiting member conflicts with the fixing member. The vertical cross section of each fixing member is a U-shaped structure, which is simple in structure and high in stability.

[0030] Combination Figure 4As shown, each fixing member is a height-adjustable U-shaped structure composed of a first L-shaped member 301 and a second L-shaped member 302. The height between the upper clamp and the lower clamp can be further adjusted according to actual needs, thereby increasing the scope of application of the utility model. The second L-shaped member is located below the first L-shaped member, and a cavity 12 is provided inside the second L-shaped member. The lower end of the first L-shaped member is arranged in the cavity and is fastened to the second L-shaped member by bolts 13. A retractable structure is formed between the first L-shaped member and the second L-shaped member. The specific structure is that at least two first through holes 14 are provided on the first L-shaped member at intervals, and a second through hole 15 is provided on the second L-shaped member. The second through hole cooperates with the at least two first through holes and is assembled and connected by bolts. The corresponding first through holes and second through holes can be selected according to actual needs and assembled and connected by bolts.

[0031] The method of using the utility model is as follows:

[0032] like Figures 1 to 4 As shown, when in use, first place the assembled radiator 16 on the lower clamp plate 2, and then place the upper clamp plate 1 on the top of the radiator 16. At this time, the oil inlet and outlet pipes 1601 of the radiator 16 are in conflict with the bottom end of the upper clamp plate 1, and the pressure plate 5 is located between the oil inlet pipe and the oil outlet pipe of the radiator 16. Then, turn the locking screw 4 to drive the upper clamp plate 1 to move downward step by step, and cooperate with the lower clamp plate 2 to clamp and fix the radiator 16. During the brazing process of the product, the height of the product is gradually reduced, and the pressure plate 5 is always tightly attached to the top surface of the radiator 16 under the action of the spring 7, exerting pressure on it, thereby ensuring the brazing quality of the product.

[0033] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model.

Claims

1. A radiator brazing tool, comprising an upper clamping plate and a lower clamping plate arranged in parallel, characterized in that: It also includes two fixing parts symmetrically arranged on both sides of the upper clamp, the lower end of each fixing part is connected to the corresponding side of the lower clamp, and the upper end is threadedly connected to a clamping screw, the clamping screw is located above the upper clamp, and the bottom end surface thereof is tightly fitted with the upper end surface of the upper clamp, and the lower end of the upper clamp is connected to a pressure plate through at least one group of elastic components.

2. A heat sink brazing tool as claimed in claim 1, characterized in that: Each of the elastic components includes a guide rod and a spring. One end of the guide rod is connected to the pressure plate, and the other end passes through a guide hole provided on the upper clamping plate. The guide rod is slidably connected to the guide hole. The spring is sleeved on the guide rod and is located between the upper clamping plate and the pressure plate.

3. A heat sink brazing tool as claimed in claim 2, characterized in that: The guide rod is threadedly connected with a threaded hole arranged on the pressing plate.

4. A heat sink brazing tool as claimed in claim 2, characterized in that: One end of the guide rod away from the pressure plate is connected with a first limiting member.

5. A heat sink brazing tool as claimed in claim 1, characterized in that: The lower clamping plate is a hollow structure with openings on both sides, and the lower end of each fixing member is respectively embedded in the interior of a corresponding side of the lower clamping plate.

6. A heat sink brazing tool as claimed in claim 5, characterized in that: Two second limiting members are arranged inside the lower clamping plate, and the two second limiting members are matched with the two fixing members in a one-to-one correspondence.

7. A heat sink brazing tool as claimed in claim 1, characterized in that: The vertical cross section of each fixing member is a U-shaped structure.

8. A heat sink brazing tool as claimed in claim 7, characterized in that: Each of the fixing members is a height-adjustable U-shaped structure formed by splicing a first L-shaped member and a second L-shaped member.

9. A heat sink brazing tool as claimed in claim 8, characterized in that: The second L-shaped member is located below the first L-shaped member and has a cavity inside. The lower end of the first L-shaped member is disposed in the cavity and is fastened to the second L-shaped member by bolts.

10. A heat sink brazing tool as claimed in claim 9, characterized in that: At least two first through holes are arranged at intervals on the first L-shaped member, and a second through hole is arranged on the second L-shaped member. The second through hole cooperates with the at least two first through holes and is assembled and connected by bolts.

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