Refrigerant runner plate brazing welding tool

Abstract

The utility model relates to the technical field of new energy automobile part machining, in particular to a refrigerant runner plate brazing welding tool which comprises a supporting assembly and further comprises a pressing assembly, the supporting assembly comprises a supporting frame, a supporting platform is arranged at the upper end of the supporting frame, and the pressing assembly comprises a pressing frame. The pressing frame is provided with the pressing column matched with the supporting platform, the refrigerant runner plate is pressed to the supporting assembly through the pressing assembly, then accurate fixing is carried out, and the welding stability is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of new energy vehicle parts processing technology, and in particular to brazing welding fixtures for refrigerant flow channel plates. Background Technology

[0002] The refrigerant flow channel plate used in the thermal management integrated module of new energy vehicles adopts gas-shielded brazing welding technology. The product structure of the refrigerant flow channel plate mainly consists of a main refrigerant flow channel plate, a secondary refrigerant flow channel plate, refrigerant connectors, and welding gaskets. The main refrigerant flow channel plate is an aluminum alloy die-cast part, with the welding surface machined. The welding surface area is large, resulting in poor flatness. The secondary refrigerant flow channel plate is a stamped part; due to its large welding surface, the flatness of the welding surface after stamping is also poor. The welding gaskets are also stamped parts. Because the welding gaskets are thin (only 1mm), the flatness of the welding surface after stamping is also poor. The main and secondary refrigerant flow channel plates are brazed together, and the refrigerant connectors are brazed to the secondary refrigerant flow channel plate via welding gaskets. Since the refrigerant flow channel plate is the pipe of the heat pump system in new energy vehicles, it operates under high pressure, with a maximum operating pressure reaching 2.0MPa. Therefore, the welding quality requirements for the refrigerant flow channel plate are extremely high. Therefore, it is necessary to study a brazing fixture for refrigerant flow channel plates that can solve the problem of simultaneous welding of multiple components and is compatible with manufacturing errors between different components. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a brazing tooling for refrigerant flow channel plates.

[0004] This utility model is achieved through the following technical solution: a brazing welding fixture for a refrigerant flow channel plate, including a support assembly, the support assembly including a support frame, the upper end of the support frame being provided with a support platform, and also including a pressing assembly, the pressing assembly including a pressing frame, the pressing frame being provided with pressing columns that cooperate with the support platform.

[0005] Furthermore, the support platform includes multiple upward-pointing support columns, and a welded base plate is provided between the upper ends of the multiple support columns. The upper surface of the welded base plate cooperates with the refrigerant flow channel plate.

[0006] Furthermore, the pressing column is an elastic pressing column, which includes a floating rod that passes upward through the pressing frame. A buffer spring is provided between the floating rod and the pressing frame, and a pressure head that cooperates with the refrigerant flow channel plate is provided at the lower end of the floating rod.

[0007] Furthermore, the floating rod is provided with an exhaust chamber, and the pressure head is provided with an exhaust hole communicating with the exhaust chamber.

[0008] Furthermore, a pre-tightening structure is provided between the support frame and the pressing frame. The pre-tightening structure includes a connecting rod, the lower end of which is hinged to the support frame, and the upper end of which is provided with a transverse pressure plate that cooperates with the pressing frame.

[0009] Furthermore, a guide structure is provided between the support frame and the pressing frame. The guide structure includes a guide rod disposed on the pressing frame, and a guide sleeve that cooperates with the guide rod is disposed on the support frame.

[0010] Furthermore, the pressing frame is also equipped with a welding dust cover.

[0011] The beneficial effects of this utility model are as follows: by setting up a support component and a pressing component, the refrigerant flow channel plate is pressed onto the support component by the pressing component, thereby achieving accurate fixation and ensuring welding stability. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the refrigerant flow channel plate structure;

[0013] Figure 2 This is a schematic diagram of the structure of Example 1;

[0014] Figure 3 This is a schematic diagram of the second orientation structure in Example 1;

[0015] Figure 4 for Figure 3 Enlarged view of a portion of point A in the middle;

[0016] Figure 5 This is a schematic diagram showing the fit between the compression column and the refrigerant flow channel plate;

[0017] Figure 6 This is a schematic diagram showing the relationship between the support column and the refrigerant flow channel plate;

[0018] Figure 7 This is a schematic diagram of the press-fit column structure.

[0019] The components are as follows: 1. Main refrigerant flow channel plate; 2. Sub-plate of refrigerant flow channel plate; 3. Refrigerant connector; 4. Welding gasket; 5. Pressing frame; 6. Reinforcing rib; 7. Pressing column; 8. Support frame; 9. Connecting rod; 10. Support column; 11. Connecting shaft; 12. Guide structure; 13. Transverse pressure plate; 14. Guide rod; 15. Guide sleeve; 16. Floating rod; 17. Buffer spring; 18. Pressure sleeve; 19. Pressure head; 20. Connecting column; 21. Welded dust cover; 22. Exhaust hole; 23. Top plate; 24. Welded bottom plate. Detailed Implementation

[0020] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] 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 scope of protection of the present utility model.

[0022] Example 1

[0023] like Figure 1-7 As shown, a brazing fixture for a refrigerant flow channel plate is used for brazing a refrigerant flow channel plate used in the engine of a new energy vehicle. The refrigerant flow channel plate includes a main refrigerant flow channel plate 1, a secondary refrigerant flow channel plate 2, a refrigerant connector 3, and a welding gasket 4. The main refrigerant flow channel plate 1 and the secondary refrigerant flow channel plate 2 are brazed to form a refrigerant channel. The refrigerant connector 3 is welded to the secondary refrigerant flow channel plate 2 through the welding gasket 4 and connected to the refrigerant channel.

[0024] The brazing fixture for the refrigerant flow channel plate includes a support assembly, which includes a support frame 8. In this embodiment, the support frame 8 is made of aluminum alloy sheet, which has high structural strength and is lightweight. The support frame 8 is also connected with reinforcing ribs 6, thereby improving its resistance to deformation. The upper end of the support frame 8 has a support platform. Specifically, the support platform includes multiple upward support columns 10. The upper ends of the multiple support columns 10 are supported by a horizontal top plate 23, which supports a welding base plate 24. The upper surface of the welding base plate 24 mates with the refrigerant flow channel plate. The welding base plate 24 is contoured to the refrigerant flow channel plate sub-plate 2. During the brazing process, the welding base plate 24 is in contact with the refrigerant flow channel plate sub-plate 2. The welding base plate 24 is machined with through holes, which can accelerate heat dissipation.

[0025] The brazing fixture for the refrigerant flow channel plate also includes a pressing assembly, which includes a pressing frame 5. The pressing frame 5 is also made of aluminum alloy sheet, which has high structural strength and is lightweight. The pressing frame 5 is also connected with reinforcing ribs 6, thereby improving its resistance to deformation. A pressing column 7 that cooperates with the support platform is installed on the pressing frame 5. Specifically, the pressing column 7 is an elastic pressing column 7, which includes a floating rod 16. The floating rod 16 passes upward through the pressing frame 5. The pressing frame 5 is machined with guide holes that cooperate with the floating rod 16. A buffer spring 17 is installed between the floating rod 16 and the pressing frame 5. The lower end of the floating rod 16 is connected to a pressure head 19 that cooperates with the refrigerant flow channel plate. The pressure head 19 is disc-shaped, thereby increasing the adhesion between the pressure head and the main body of the refrigerant flow channel plate. The mating area of ​​plate 1, part of the pressure head 19 and the interface of the main plate 1 of the refrigerant flow channel plate are mated. In order to accelerate the discharge of hot air during the brazing process, the floating rod 16 is made of a pipe to form an exhaust chamber. The pressure head 19 is machined with an exhaust hole 22 that communicates with the exhaust chamber. A pressure sleeve 18 is also fitted on the floating rod 16 between the pressing frame 5 and the buffer spring 17 to support the buffer spring 17. A welding dust cover 21 is also installed on the pressing frame 5. The welding dust cover 21 and the interface of another part of the main plate 1 of the refrigerant flow channel plate are mated. The head of the welding dust cover 21 is connected to the pressing frame 5 through the connecting column 20. The welding dust cover 21 and the connecting column 20 are slidably mated, so that the welding dust cover 21 can rise and fall along the connecting column 20 to avoid interference.

[0026] A pre-tightening structure is installed between the support frame 8 and the pressing frame 5. The pre-tightening structure includes a connecting rod 9, the lower end of which is hinged to the support frame 8. The upper end of the connecting rod 9 is integrally formed with a transverse pressure plate 13 that cooperates with the pressing frame 5. A transverse connecting shaft 11 is installed on the pressing frame 5. The lower end face of the transverse pressure plate 13 is machined with an arc-shaped groove that cooperates with the connecting shaft 11. When the support frame 8 and the pressing frame 5 are connected through the pre-tightening structure, the buffer spring 17 is in a compressed state, thereby realizing the pre-tightening between the support assembly, the refrigerant flow channel plate, and the pressing assembly.

[0027] A guide structure 12 is also installed between the support frame 8 and the pressing frame 5. The guide structure 12 includes a guide rod 14 installed on the pressing frame 5, and a guide sleeve 15 that cooperates with the guide rod 14 is installed on the support frame 8.

[0028] During use, the support assembly and pressing assembly are pre-installed. Then, the pressing assembly is inverted, and the refrigerant flow channel plate main board 1 is placed on the pressing assembly, the refrigerant flow channel plate sub-plate 2 is placed on the refrigerant flow channel plate main board 1, and the welding piece is placed on the refrigerant connector 3 to form the refrigerant connector 3 assembly. The refrigerant connector 3 assembly is then placed on the refrigerant flow channel plate sub-plate 2, and the welding base plate 24 is placed on the refrigerant flow channel plate assembly. The support assembly and pressing assembly are then connected and pre-tightened using a pre-tightening structure. During placement, the positioning is adjusted to ensure accurate fixation and welding stability. The refrigerant flow channel plate brazing fixture is then placed on the press worktable. The press further brings the support assembly and pressing assembly closer together, thereby further pressing the refrigerant flow channel plate main board 1, refrigerant flow channel plate sub-plate 2, refrigerant connector 3, and welding gasket 4 together, and the brazing operation begins.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A brazing fixture for a refrigerant flow channel plate, characterized in that, The device includes a support assembly, which includes a support frame and a support platform at the upper end of the support frame. It also includes a pressing assembly, which includes a pressing frame and a pressing column that cooperates with the support platform.

2. The brazing fixture for the refrigerant flow channel plate according to claim 1, characterized in that, The support platform includes multiple upward-facing support columns, and a welded base plate is provided between the upper ends of the multiple support columns. The upper surface of the welded base plate cooperates with the refrigerant flow channel plate.

3. The brazing fixture for the refrigerant flow channel plate according to claim 1, characterized in that, The pressing column is an elastic pressing column, which includes a floating rod that passes upward through the pressing frame. A buffer spring is provided between the floating rod and the pressing frame, and a pressure head that cooperates with the refrigerant flow channel plate is provided at the lower end of the floating rod.

4. The brazing fixture for the refrigerant flow channel plate according to claim 3, characterized in that, The floating rod is provided with an exhaust chamber, and the pressure head is provided with an exhaust hole that communicates with the exhaust chamber.

5. The brazing fixture for the refrigerant flow channel plate according to claim 3, characterized in that, A pre-tightening structure is provided between the support frame and the pressing frame. The pre-tightening structure includes a connecting rod. The lower end of the connecting rod is hinged to the support frame, and the upper end of the connecting rod is provided with a transverse pressure plate that cooperates with the pressing frame.

6. The brazing fixture for the refrigerant flow channel plate according to claim 1, characterized in that, A guide structure is provided between the support frame and the pressing frame. The guide structure includes a guide rod provided on the pressing frame and a guide sleeve provided on the support frame to cooperate with the guide rod.

7. The brazing fixture for the refrigerant flow channel plate according to claim 1, characterized in that, The pressing frame is also equipped with a welding dust cover.

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