Riveting device for automobile battery cooler

Abstract

The utility model relates to an automobile battery cooler riveting device, and belongs to the field of automobile air conditioners. Comprising a first die assembly (1) and a second die assembly (3), the second die assembly (3) is used for clamping or loosening a pipe fitting (2) of the battery cooler, the first die assembly (1) is movably arranged in the direction close to or away from the second die assembly (3), and a punch (16) used for riveting the pipe fitting (2) of the battery cooler is arranged on the first die assembly (1). According to the scheme, the two sides of the mold are synchronously opened through the eccentric cam mechanism, the mold is rapidly opened, and rapid clamping and demolding are achieved through the inclined block structure. And riveting machining of parts is completed only by clamping a workpiece once, so that the production efficiency is greatly improved, and meanwhile, the quality consistency and stability are ensured.

Description

Technical Field

[0001] The utility model belongs to the field of automobile air conditioners and relates to a riveting device for an automobile battery cooler. Background Art

[0002] With the continuous advancement of industrial technology and increasing demands for energy conservation and environmental protection, refrigeration equipment, particularly CHILLERS (battery coolers), is increasingly being used in industrial production, commercial buildings, data centers, and other fields. In the CHILLER production process, the riveting die is a key production tool. Its design rationality and manufacturing precision directly affect the performance and lifespan of the CHILLER.

[0003] Traditional CHILLER riveting mold designs often utilize a split structure, meaning each mold component needs to be manufactured separately and assembled using fasteners such as bolts. While this design approach can meet production needs to a certain extent, it has several drawbacks. First, the split structure complicates the mold assembly process, making it inefficient and prone to assembly errors, which can affect product quality. Second, split molds are expensive to maintain; if a part is damaged, the entire mold must be replaced or complex repairs must be performed. Furthermore, split molds present numerous inconveniences during transportation and storage.

[0004] During the production of plate heat exchangers, the top plate, inlet and outlet pipes, and joints are typically pre-fixed using riveting. A single product may have 4-6 parts that require riveting. Existing technology requires two or more steps and two or more sets of tooling to complete the riveting of all parts. This traditional process presents the following problems: 1. The step-by-step riveting of individual or several parts results in poor product quality consistency and stability due to multiple assembly errors; 2. The individual riveting of individual parts requires a long time and low efficiency.

[0005] To address these issues, the one-piece CHILLER riveting die has become a research hotspot within the industry in recent years. This one-piece die design integrates all die components and is manufactured in a single process through precision machining, eliminating the need for additional assembly. This design not only simplifies the production process and improves efficiency, but also significantly reduces assembly errors and maintenance costs. It also offers advantages in transportation and storage.

[0006] However, the one-piece CHILLER riveting dies currently on the market still face several technical bottlenecks, such as complex structural design, difficult processing, and high manufacturing costs. Therefore, designing an one-piece CHILLER riveting die with a reasonable structure, simple processing, and low cost has become a technical challenge that needs to be urgently addressed in the industry. Utility Model Content

[0007] In light of this, the purpose of this utility model is to provide a riveting device for automotive battery coolers. By optimizing the mold's structural design and manufacturing process, this device achieves efficient and cost-effective mold production while ensuring product quality and performance. This design not only meets market demand but also offers broad application prospects and significant economic benefits.

[0008] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions:

[0009] A riveting device for an automobile battery cooler includes a first mold assembly and a second mold assembly. The second mold assembly is used to clamp or loosen a pipe fitting of the battery cooler. The first mold assembly is movably arranged in a direction close to or away from the second mold assembly. The first mold assembly is provided with a punch for riveting the pipe fitting of the battery cooler.

[0010] Optionally, the first mold assembly includes a template, and a first spring and a punch are arranged on the same side of the template, and the length of the first spring in a non-pressurized working condition is greater than or equal to the length of the punch.

[0011] Optionally, a stripper plate is provided on one side of the template where the punch is provided, via connecting bolts.

[0012] Optionally, the connecting bolt is arranged in the first spring.

[0013] Optionally, a guide sleeve for guiding the movement direction of the template is provided on the template; and a guide column matching the guide sleeve is provided on the second mold assembly.

[0014] Optionally, a mold handle for operation is provided on a side of the first mold plate away from the first spring.

[0015] Optionally, the second mold assembly includes a fixed plate, a base plate is floatingly arranged on the fixed plate, a slide rail is arranged on the base plate, and a first outer mold, a first inner mold, a second outer mold, and a second inner mold are arranged on the slide rail; the first outer mold, the first inner mold, the second outer mold, and the second inner mold are connected by an eccentric cam with two connecting rods, one of the connecting rods connects the first outer mold and the second inner mold, and the other connecting rod connects the first inner mold and the second outer mold, and a quick clamp is connected to the second outer mold, and the action of the quick clamp drives the eccentric cam to pull the first outer mold to move synchronously.

[0016] Optionally, the bottom plate is arranged on the fixed plate via a second spring, and a short guide column is arranged in the second spring and passes through the bottom plate.

[0017] Optionally, the elastic coefficient of the second spring is smaller than the elastic coefficient of the first spring.

[0018] Optionally, a limit block for limiting the travel limit of the bottom plate is provided on a side of the bottom plate facing the fixed plate.

[0019] Optionally, an inclined block with the same inclination on both sides is provided between the first inner clamping mold and the second inner clamping mold, and the sides of the first inner clamping mold and the second inner clamping mold facing the inclined block are both sloped to match the shape of the inclined block.

[0020] The beneficial effects of the present invention are:

[0021] This solution utilizes an eccentric cam mechanism to synchronize the opening of both sides of the mold, enabling rapid mold opening. A ramp block structure allows for rapid clamping and demolding. This allows for the complete riveting of parts with a single clamping operation, significantly improving production efficiency while ensuring consistent and stable quality.

[0022] Other advantages, objectives, and features of the present invention will be described in detail in the following description and, to some extent, will be apparent to those skilled in the art upon examination and study of the following or may be learned from practice of the present invention. The objectives and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in detail below with reference to the accompanying drawings, in which:

[0024] Figure 1 The overall structure of this program;

[0025] Figure 2 is a structural schematic diagram of the second mold assembly;

[0026] Figure 3 Schematic diagram of the connection position of the cam and the connecting rod;

[0027] Figure 4 This is a schematic diagram of the setting position of the inclined block;

[0028] Figure 5 It is a structural schematic diagram of the first mold assembly.

[0029] Figure numerals: 1 first mold assembly, 2 pipe fitting, 3 second mold assembly, 11 mold handle, 12 template, 13 first spring, 14 guide sleeve, 15 connecting bolt, 16 punch, 17 unloading plate, 31 fixed plate, 32 base plate, 33 slide rail, 34 first outer clamp, 35 first inner clamp, 36 second inner clamp, 37 guide column, 38 second outer clamp, 39 quick clamp, 310 second spring, 311 short guide column, 312 limit block, 313 oblique block, 314 connecting rod, 315 eccentric cam. DETAILED DESCRIPTION

[0030] The following describes the embodiments of the present invention through specific examples. Those skilled in the art can easily understand the other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments. The details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention. The following embodiments and the features in the embodiments can be combined with each other without conflict.

[0031] Among them, the accompanying drawings are only for illustrative purposes and represent only schematic diagrams rather than actual pictures, and should not be understood as limiting the present invention. In order to better illustrate the embodiments of the present invention, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the accompanying drawings.

[0032] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc. indicating directions or positional relationships, they are based on the directions or positional relationships shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0033] See also Figures 1 to 5 , which is a riveting device for an automobile battery cooler, includes a first mold assembly 1 and a second mold assembly 3. The second mold assembly 3 is used to clamp or release the pipe fitting 2 of the battery cooler. The first mold assembly 1 is movably arranged in a direction close to or away from the second mold assembly 3. A punch 16 for riveting the pipe fitting 2 of the battery cooler is provided on the first mold assembly 1.

[0034] The first mold assembly 1 includes a mold plate 12, with a first spring 13 and a punch 16 disposed on the same side of the mold plate 12. The length of the first spring 13 in a non-pressurized condition is greater than or equal to the length of the punch 16. A stripper plate 17 is provided on the side of the mold plate 12 where the punch 16 is disposed, via connecting bolts 15. The connecting bolts 15 are disposed within the first spring 13. A guide sleeve 14 is provided on the mold plate 12 to guide its movement; a guide post 37 is provided on the second mold assembly 3 to cooperate with the guide sleeve 14. A mold handle 11 is provided on the side of the first mold plate 12 away from the first spring 13 for operation.

[0035] The second mold assembly 3 includes a fixed plate 31, a base plate 32 is floatingly arranged on the fixed plate 31, a slide rail 33 is arranged on the base plate 32, and a first outer mold 34, a first inner mold 35, a second outer mold 38, and a second inner mold 36 are arranged on the slide rail 33; the first outer mold 34, the first inner mold 35, the second outer mold 38, and the second inner mold 36 are connected by an eccentric cam 315 with two connecting rods 314, one of which connects the first outer mold 34 and the second inner mold 36, and the other connects the first inner mold 35 and the second outer mold 38, and the second outer mold 38 is connected to the quick clamp 39, and the action of the quick clamp 39 drives the eccentric cam 315 to pull the first outer mold 34 to move synchronously.

[0036] The base plate 32 is mounted on the fixed plate 31 via a second spring 310. A short guide post 311 is provided within the second spring 310, extending through the base plate 32. The spring constant of the second spring 310 is smaller than that of the first spring 13. A stopper 312 is provided on the side of the base plate 32 facing the fixed plate 31, limiting the travel of the base plate 32. A slanted block 313 with the same inclination is provided between the first inner clamping mold 35 and the second inner clamping mold 36. The sides of the first inner clamping mold 35 and the second inner clamping mold 36 facing the slanted block 313 are both sloped to match the shape of the slanted block 313.

[0037] This mold is suitable for riveting CHILLER top plates, inlet and outlet pipes, and connectors. It utilizes an eccentric cam 315 mechanism and a wedge mechanism. First, insert the pipe fitting 2 into the cavity of the second mold assembly 3. Then, manually push the quick clamp 39, pushing the second outer clamp 38. This pulls the connecting rod 314, driving the eccentric cam 315 to rotate and pull the first outer clamp 34 toward the center until it reaches the limit stop. The pressure plate, connector, and other components are then installed. Once all parts are installed, the hydraulic press is activated, and the first mold assembly 1 moves downward. As the first mold assembly 1 contacts the second mold assembly 3, the entire structure on the base plate 32 moves downward, guided by the short guide pins 311, because the spring force of the second spring 310 in the second mold assembly 3 is less than the spring force of the first spring 13 in the first mold assembly 1. The first and second inner clamps 35, 36 in the second mold assembly 3 simultaneously move horizontally in opposite phases, driven by the wedge block 313, until the base plate 32 contacts the limit block 312, clamping the pipe fitting 2. The first mold assembly 1 continues to move downward, compressing the first spring 13 and causing the punch 16 to contact the workpiece until the set stroke is reached, completing the riveting. After the riveting is complete, the first mold assembly 1 retracts, and the spring in the second mold assembly 3 resets. Under the action of the ramp 313, the first inner clamp 3530-5 and the second inner clamp 36 move horizontally relative to each other, completing the demolding. The quick clamp 39 is then manually opened, and the workpiece is removed, completing the riveting.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the utility model.

Claims

1. A riveting device for an automobile battery cooler, characterized in that: The invention comprises a first mold assembly (1) and a second mold assembly (3), wherein the second mold assembly (3) is used for clamping or releasing a pipe fitting (2) of a battery cooler, the first mold assembly (1) is movably arranged in a direction close to or away from the second mold assembly (3), and a punch (16) for riveting the pipe fitting (2) of the battery cooler is provided on the first mold assembly (1); The first die assembly (1) comprises a template (12), a first spring (13) and a punch (16) are arranged on the same side of the template (12), and the length of the first spring (13) in a non-pressurized condition is greater than or equal to the length of the punch (16); The second mold assembly (3) comprises a fixed plate (31), a base plate (32) is arranged floatingly on the fixed plate (31), a slide rail (33) is arranged on the base plate (32), and a first outer clamping mold (34), a first inner clamping mold (35), a second outer clamping mold (38), and a second inner clamping mold (36) are arranged on the slide rail (33); the first outer clamping mold (34), the first inner clamping mold (35), the second outer clamping mold (38), and the second inner clamping mold (36) are connected by an eccentric cam (315) with two connecting rods (314). An outer clamping die (38) and a second inner clamping die (36), wherein one connecting rod (314) connects the first outer clamping die (34) and the second inner clamping die (36), and another connecting rod (314) connects the first inner clamping die (35) and the second outer clamping die (38), and a quick clamp (39) is connected to the second outer clamping die (38), and the eccentric cam (315) is driven by the action of the quick clamp (39) to pull the first outer clamping die (34) to move synchronously; An inclined block (313) with the same inclination on both sides is arranged between the first inner clamping mold (35) and the second inner clamping mold (36); the sides of the first inner clamping mold (35) and the second inner clamping mold (36) facing the inclined block (313) are both slopes that match the shape of the inclined block (313).

2. The riveting device for an automobile battery cooler according to claim 1, characterized in that: A stripper plate (17) is provided on one side of the template (12) where the punch (16) is provided, via a connecting bolt (15).

3. The riveting device for an automobile battery cooler according to claim 2, characterized in that: The connecting bolt (15) is arranged in the first spring (13).

4. The riveting device for an automobile battery cooler according to claim 1, characterized in that: A guide sleeve (14) for guiding the movement direction of the template (12) is provided; and a guide column (37) matching the guide sleeve (14) is provided on the second mold assembly (3).

5. The riveting device for an automobile battery cooler according to claim 1, characterized in that: The bottom plate (32) is arranged on the fixed plate (31) via a second spring (310), and a short guide column (311) is arranged inside the second spring (310) and passes through the bottom plate (32).

6. The riveting device for an automobile battery cooler according to claim 5, characterized in that: The elastic coefficient of the second spring (310) is smaller than the elastic coefficient of the first spring (13).

7. The riveting device for an automobile battery cooler according to claim 1, characterized in that: A limit block (312) for limiting the travel limit of the bottom plate (32) is provided on one side of the bottom plate (32) facing the fixed plate (31).

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