Copper-aluminum pressure riveting anti-deformation composite die

Abstract

This application relates to the technical field of riveting dies, and in particular to a composite riveting die for copper and aluminum busbars that resists deformation. The die includes an upper die base and a lower die base. The upper die base is equipped with multiple riveting punches. The lower die base is equipped with a copper busbar limiting mechanism. The copper busbar limiting mechanism includes limiting plates on both sides of the copper busbar placement area on the lower die base and adjustable limiting blocks. An ejection assembly is provided on the lower die base. The ejection assembly includes multiple first hydraulic cylinders disposed within the lower die base. Each first hydraulic cylinder can drive a corresponding limiting plate to move towards or away from the copper busbar. This application can reduce the deformation of the copper busbar during processing, ensuring the dimensional accuracy and surface quality of the copper busbar. It also facilitates the removal of the processed copper busbar and the placement of the next copper busbar to be processed, simplifying the operation process.

Description

Technical Field

[0001] This application relates to the technical field of riveting molds, and in particular to a copper-aluminum riveting anti-deformation composite mold. Background Technology

[0002] In the manufacturing process of electrical equipment, copper busbars, as crucial conductive components, are significantly affected by the quality of their riveting process, which in turn impacts the performance and reliability of the equipment. In traditional copper busbar riveting, uneven distribution of riveting force and the relatively soft nature of copper make it prone to deformation, affecting dimensional accuracy and surface quality. This deformation not only increases the difficulty of subsequent processing and assembly but can also compromise the stability of electrical connections, ultimately reducing the overall performance of the electrical equipment.

[0003] A search revealed Chinese Patent Publication No. CN221952243U, which discloses a copper busbar riveting mechanism. The mechanism includes a worktable and a work base. The work base is fixedly connected to the top of the worktable, and an automatic riveting mechanism is installed at the top of the worktable. A limit mechanism is installed on the outer wall of the work base. The automatic riveting mechanism includes a control module, which is fixedly connected to the outer wall of the work base. A connecting plate is fixedly connected to the bottom of the work base. This copper busbar riveting mechanism, by incorporating the automatic riveting mechanism and driving the control module, enables the movable plate to drive the support plate to automatically apply rivets under the action of the rivet guide tube.

[0004] Regarding the aforementioned related technologies, the inventors have discovered the following defects: In the prior art, due to the relatively soft texture of the copper busbar, the copper busbar is deformed during processing. In order to solve the problem of copper busbar deformation in the prior art, this application sets a copper busbar limiting mechanism and a release component on the lower mold base to prevent the upper mold base from excessively squeezing the copper busbar during riveting, effectively reducing the degree of deformation of the copper busbar during processing and ensuring the dimensional accuracy and surface quality of the copper busbar. Utility Model Content

[0005] To reduce the deformation of copper busbars during processing, this application provides a copper-aluminum busbar press-fit anti-deformation composite mold.

[0006] This application provides a copper-aluminum busbar press-fit anti-deformation composite mold, which adopts the following technical solution: it includes an upper mold base and a lower mold base. The upper mold base is provided with multiple press-fit punches. The lower mold base is provided with a copper busbar limiting mechanism. The copper busbar limiting mechanism includes limiting plates on both sides of the copper busbar placement area on the lower mold base and adjustable limiting blocks. The lower mold base is provided with an ejection assembly, which includes multiple first hydraulic cylinders disposed within the lower mold base. Each first hydraulic cylinder can drive the corresponding limiting plate to move towards the copper busbar or away from the copper busbar. By driving the corresponding limiting plate towards the copper busbar through the first hydraulic cylinders, deformation of the copper busbar during processing is avoided.

[0007] Optionally, the lower mold base has a first receiving cavity, and the first receiving cavity is rotatably connected to a first rotating rod, which is provided with a forward thread and a reverse thread.

[0008] Optionally, the lower mold base is provided with a sliding groove, and the limiting block is provided with a nut that is compatible with the forward thread or the reverse thread; the position of the limiting block can be easily adjusted by the forward thread and the reverse thread on the first rotating rod.

[0009] Optionally, the limiting plate is provided with a first piston rod that can be driven by a first hydraulic cylinder, and a spring is provided at the end of the first piston rod, with the other end of the spring fixedly connected to the inner wall of the first hydraulic cylinder.

[0010] Optionally, the lower mold base is further provided with a second hydraulic cylinder that communicates with the first hydraulic cylinder. The second hydraulic cylinder can input hydraulic oil into the first hydraulic cylinder, or the first hydraulic cylinder can input hydraulic oil into the second hydraulic cylinder.

[0011] Optionally, a second piston rod is provided on the upper mold base, and the lower part of the second piston rod is located inside the first hydraulic cylinder.

[0012] Optionally, a first sensor is provided on the limiting block, and a second sensor is provided on the limiting plate.

[0013] In summary, this application includes the following beneficial technical effects:

[0014] 1. This utility model sets a copper busbar limiting mechanism and a release component on the lower mold base, and uses a first hydraulic cylinder to drive the limiting plate to prevent the upper mold base from excessively squeezing the copper busbar during riveting, effectively reducing the degree of deformation of the copper busbar during processing and ensuring the dimensional accuracy and surface quality of the copper busbar.

[0015] 2. This utility model uses a spring at the end of the first piston rod of the limiting plate. After processing, the spring can drive the limiting plate to reset, creating a gap between the limiting plate and the copper busbar. This makes it easier for workers to remove the processed copper busbar and place the next copper busbar to be processed, simplifying the operation process. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application;

[0017] Figure 2 This is a schematic diagram of the upper mold base in an embodiment of this application;

[0018] Figure 3 This is a schematic diagram of the structure of the lower mold base in an embodiment of this application;

[0019] Figure 4 This is a schematic diagram of the structure of the first rotating rod in an embodiment of this application;

[0020] Figure 5 This is a schematic diagram of the structure of the first hydraulic cylinder and the second hydraulic cylinder in the embodiments of this application;

[0021] Figure 6 This is a schematic diagram of the structure of the first piston rod in an embodiment of this application;

[0022] Figure 7 This is a schematic diagram of the limiting plate in an embodiment of this application.

[0023] Reference numerals in the attached drawings: 1. Upper die base; 2. Lower die base; 3. Riveting punch; 4. Limiting plate; 5. Limiting block; 6. First hydraulic cylinder; 7. First rotating rod; 8. Forward thread; 9. Reverse thread; 10. First piston rod; 11. Spring; 12. Second hydraulic cylinder; 13. Second piston rod; 14. First pipeline; 15. Second pipeline; 16. First sensor; 17. Second sensor. Detailed Implementation

[0024] The following is in conjunction with the appendix Figures 1-7 This application will be further described in detail below. The technical solutions in the embodiments of this application will be clearly described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0025] This application discloses a copper-aluminum riveting anti-deformation composite mold. For example... Figure 1 As shown, the device includes an upper die base 1 and a lower die base 2. The upper die base 1 is provided with multiple riveting punches 3. The lower die base 2 is provided with a copper busbar limiting mechanism. The copper busbar limiting mechanism includes limiting plates 4 on both sides of the copper busbar placement area of ​​the lower die base 2 and adjustable limiting blocks 5. The lower die base 2 is provided with an ejection assembly, which includes multiple first hydraulic cylinders 6 disposed within the lower die base 2. Each first hydraulic cylinder 6 can drive the corresponding limiting plate 4 to move towards the copper busbar or away from the copper busbar.

[0026] In this embodiment, when the copper busbar needs to be processed, the copper busbar to be processed is placed on the lower mold base 2. After the limiting blocks 5 on both sides of the copper busbar are adjusted to the corresponding positions, the first hydraulic cylinder 6 drives the corresponding limiting plate 4 to move towards the copper busbar. When the limiting plate 4 contacts the limiting block 5, the limiting plate 4 stops moving to avoid the limiting plate 4 from squeezing the copper busbar. The upper mold base 1 begins to process the copper busbar. During processing, the limiting plate 4 prevents the upper mold base 1 from squeezing the copper busbar and causing deformation of the copper busbar.

[0027] Please see Figure 3The lower mold base 2 has a first receiving cavity, and the first receiving cavity is rotatably connected to a first rotating rod 7. The first rotating rod 7 is provided with a forward thread 8 and a reverse thread 9. The lower mold base 2 has a sliding groove, and the limiting block 5 is provided with a nut that is compatible with the forward thread 8 or the reverse thread 9.

[0028] In this embodiment, rotating the first rotating rod 7 allows the sliding groove to limit the position of the limiting block 5. The first rotating rod 7, through the forward thread 8 and the reverse thread 9, enables the two limiting blocks to move in opposite directions simultaneously, thus making the adjustment of the limiting block 5 more convenient.

[0029] Please see Figure 5 and Figure 6 The limiting plate 4 is provided with a first piston rod 10 that can be driven by the first hydraulic cylinder 6. A spring 11 is provided at the end of the first piston rod 10, and the other end of the spring 11 is fixedly connected to the inner wall of the first hydraulic cylinder 6.

[0030] In this embodiment, when the copper busbar is processed, the first hydraulic cylinder 6 drives the corresponding limiting plate 4 to move toward the copper busbar through the first piston rod 10; after the processing is completed, the limiting plate 4 is reset by the spring 11, which facilitates the removal of the copper busbar and the placement of the next copper busbar.

[0031] Please see Figure 5 The lower mold base 2 is also provided with a second hydraulic cylinder 12 that communicates with the first hydraulic cylinder 6. The second hydraulic cylinder 12 can input hydraulic oil into the first hydraulic cylinder 6 or the first hydraulic cylinder 6 can input hydraulic oil into the second hydraulic cylinder 12. The upper mold base 1 is provided with a second piston rod 13, and the lower part of the second piston rod 13 is located inside the first hydraulic cylinder 6.

[0032] In this embodiment, the first hydraulic cylinder 6 and the second hydraulic cylinder 12 are connected through the first pipeline 14 and the second pipeline 15. When the first hydraulic cylinder 6 supplies oil to the second hydraulic cylinder 12, the first pipeline 14 is opened and the second pipeline 15 is closed; when the second hydraulic cylinder 12 supplies oil to the first hydraulic cylinder 6, the second pipeline 15 is opened and the first pipeline 14 is closed.

[0033] To facilitate the opening of the two pipelines, a first solenoid valve can be installed in the first pipeline 14, and a second solenoid valve can be installed in the second pipeline 15.

[0034] Please see the figure and Figure 7 The limiting block 5 is provided with a first sensor 16, and the limiting plate 4 is provided with a second sensor 17.

[0035] In this embodiment, when the first sensor 16 comes into contact with the second sensor 17, it indicates that the limiting plate 4 has come into contact with the copper busbar. In order to prevent the upper mold base 1 from continuing to descend and causing excessive pressure in the first hydraulic cylinder 6, when the first sensor 16 comes into contact with the second sensor 17, the second solenoid valve opens, and the hydraulic oil in the first hydraulic cylinder 6 enters the second hydraulic cylinder 12, thereby preventing the first hydraulic cylinder 6 from bursting.

[0036] The implementation principle of the copper-aluminum riveting anti-deformation composite mold in this application embodiment is as follows:

[0037] The copper busbar to be processed is placed on the lower mold base 2. By rotating the first rotating rod 7 in the first accommodating cavity of the lower mold base 2, the positive thread 8 and the reverse thread 9 are used to limit the limit block 5 in conjunction with the sliding groove, so that the two limit blocks 5 move towards or away from each other at the same time and are adjusted to the corresponding positions so that the outer wall of the limit block 5 can be flush with the outer wall of the copper busbar.

[0038] The upper mold base 1 is lowered, the second piston rod 13 compresses the hydraulic oil in the first piston rod 10, and drives the first piston rod 10, causing the limiting plate 4 to move towards the copper busbar.

[0039] When the limiting plate 4 contacts the limiting block 5, the limiting plate 4 can already limit the copper busbar. Since the specifications of each batch of copper busbar are different, the upper mold base 1 has not yet reached the working position. In order to prevent the upper mold base 1 from continuing to descend and causing the first hydraulic cylinder 6 to burst, when the first sensor 16 contacts the second sensor 17, the first solenoid valve opens, and the hydraulic oil in the first hydraulic cylinder 6 enters the second hydraulic cylinder 12 through the first pipeline 14.

[0040] After the upper die holder 1 reaches the working position, it drives multiple riveting punches 3 to descend and perform riveting on the copper busbar. During this process, the limiting plate 4 can prevent the upper die holder 1 from excessively squeezing the copper busbar and reduce the deformation of the copper busbar during processing.

[0041] After processing is completed, the upper mold base 1 drives the second piston rod 13 to move upward. At this time, the second solenoid valve opens and the first solenoid valve closes. The negative pressure generated by the upward movement of the second piston rod 13 causes the hydraulic oil in the second piston cylinder to enter the first piston cylinder. Under the action of negative pressure, the first piston rod 10 and the spring 11 together drive the corresponding limit plate 4 to reset. Sufficient gap is generated between the limit plate 4 and the copper busbar, making it easy for the worker to remove the copper busbar.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A copper-aluminum riveting anti-deformation composite mold, comprising an upper mold base and a lower mold base, characterized in that: The upper die base is provided with multiple riveting punches; the lower die base is provided with a copper busbar limiting mechanism; the copper busbar limiting mechanism includes limiting plates on both sides of the copper busbar placement area of ​​the lower die base and adjustable limiting blocks; the lower die base is provided with an ejection assembly, which includes multiple first hydraulic cylinders disposed within the lower die base, each first hydraulic cylinder capable of driving the corresponding limiting plate to move towards the copper busbar or away from the copper busbar.

2. The copper-aluminum riveting anti-deformation composite mold according to claim 1, characterized in that: The lower mold base has a first receiving cavity, and the first receiving cavity is rotatably connected to a first rotating rod, which is provided with a forward thread and a reverse thread.

3. The copper-aluminum riveting anti-deformation composite mold according to claim 2, characterized in that: The lower mold base is provided with a sliding groove, and the limiting block is provided with a nut that is compatible with the forward thread or the reverse thread.

4. The copper-aluminum riveting anti-deformation composite mold according to claim 1, characterized in that: The limiting plate is provided with a first piston rod that can be driven by a first hydraulic cylinder. A spring is provided at the end of the first piston rod, and the other end of the spring is fixedly connected to the inner wall of the first hydraulic cylinder.

5. The copper-aluminum riveting anti-deformation composite mold according to claim 4, characterized in that: The lower mold base is also provided with a second hydraulic cylinder that is connected to the first hydraulic cylinder. The second hydraulic cylinder can input hydraulic oil into the first hydraulic cylinder or the first hydraulic cylinder can input hydraulic oil into the second hydraulic cylinder.

6. The copper-aluminum riveting anti-deformation composite mold according to claim 5, characterized in that: The upper mold base is provided with a second piston rod, the lower part of which is located inside the first hydraulic cylinder.

7. The copper-aluminum riveting anti-deformation composite mold according to claim 1, characterized in that: The limiting block is equipped with a first sensor, and the limiting plate is equipped with a second sensor.

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