Pressure riveting mechanism for current collector and connector

Abstract

The utility model relates to the technical field of pressure riveting mechanisms, in particular to a pressure riveting mechanism for a current collector and a connector. Comprising a machine frame, a stamping mechanism is installed on the machine frame, a fixing base is arranged below the machine frame and used for fixing a current collector profiling tool and a connector profiling tool, after installation, the connector profiling tool is located on the current collector profiling tool, a pressing rivet mechanism is arranged on one side of the current collector profiling tool, and a limiting mechanism is arranged on the other side of the current collector profiling tool. The rivet pressing mechanism and the limiting mechanism move relatively to enable a rivet pressing plate of the rivet pressing mechanism and a limiting plate of the limiting mechanism to be of a plug-in structure so as to support a rivet pressing joint, and the rivet pressing plate is located on the limiting plate after butt joint. The pressing rivet joint is supported through relative movement of the left and right oppositely-inserted limiting plate and the riveting pressing plate, and compaction of a current collector in the product pressing rivet process is achieved. And pressing rivet pre-fixing of one or more joints and current collectors can be realized at the same time. Pressing rivets of different specifications and models are achieved by rapidly replacing the tool jig.

Description

Technical Field

[0001] This invention relates to the field of riveting mechanism technology, and in particular to a riveting mechanism for a current collector and a connector. Background Technology

[0002] Harmonica tube liquid cooling plates are a highly efficient thermal management solution widely used in electronic equipment, electric vehicles, aerospace, energy storage, and other fields. Their core structure consists of a series of parallel, flat tubes (harmonica tubes) connected by a manifold to form a closed liquid cooling channel. Coolant flows within this channel, absorbing and carrying away the heat generated by the equipment, thus achieving heat dissipation.

[0003] There is a harmonica tube-type liquid cooling plate connector with an L-shaped round tube and a rectangular manifold. The connector is inserted into the manifold hole by insertion. The contact gap between the connector and the manifold is required to be less than 0.15mm. After the connector is assembled into the manifold, it cannot be fixed in the manifold hole due to its own center of gravity, which cannot guarantee the contact gap and causes poor sealing after brazing.

[0004] Currently, the pre-positioning methods commonly available on the market are usually limited by the shape of the joint. They are suitable for press-fitting pre-fixing of conventional joints and aluminum plates, but press-fitting pre-fixing of joints and rectangular manifolds cannot be achieved. Summary of the Invention

[0005] The purpose of this invention is to provide a pressing and riveting mechanism for a current collector and a connector, which solves at least one of the above-mentioned technical problems.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0007] A riveting mechanism for a manifold and a connector includes a frame on which a stamping mechanism is mounted. A fixed base is provided below the frame for fixing a manifold contouring fixture and a connector contouring fixture. After installation, the connector contouring fixture is located on the manifold contouring fixture. A riveting mechanism is provided on one side of the manifold contouring fixture, and a limiting mechanism is provided on the other side. The relative movement of the riveting mechanism and the limiting mechanism causes the riveting plate of the riveting mechanism and the limiting plate of the limiting mechanism to form an insert-in structure, thereby supporting the riveted connector. After docking, the riveting plate is located on the limiting plate.

[0008] Pre-positioning is achieved by setting up a current collector contouring fixture and a connector contouring fixture, a limiting mechanism, and a starting device to ensure positional accuracy. The relative movement of the left and right interlocking limiting plates and the riveting plate supports the riveting joint, ensuring the compaction of the current collector during the product riveting process. It can also simultaneously pre-fix one or more connectors and current collectors for riveting, and can achieve riveting of different specifications and models by quickly changing the tooling fixture.

[0009] Furthermore, the sides of the rivet plate and the limiting plate are trapezoidal, and after the rivet plate and the limiting plate are joined, the sides of the rivet plate and the limiting plate as a whole are rectangular.

[0010] The sides of the limiting plate and the pressing plate are designed with trapezoidal structures. When the two are joined together, they form an overall rectangular structure. This provides more stable support for the pressing joint and also compacts the manifold during the pressing process, improving the quality and efficiency of the pressing.

[0011] Furthermore, the riveting mechanism includes a riveting plate fixing seat, the riveting plate is fixed to the riveting plate fixing seat by bolts, a spring is provided on the outer sleeve of the bolt, the spring is located between the riveting plate and the bolt, and a riveting plate moving mechanism is installed below the riveting plate fixing seat, the spring playing a buffering and protective role.

[0012] Furthermore, a first pad is provided between the rivet plate and the bolt, the spring is located between the first pad and the bolt, a bolt sleeve is provided in the bolt hole on the rivet plate, the outer diameter of the bolt sleeve matches the inner diameter of the bolt hole, the inner diameter of the bolt sleeve is smaller than the outer diameter of the spring, the top of the bolt sleeve extends outward to form a flange, and after installation, the flange is fixed between the rivet plate and the pad.

[0013] Furthermore, the riveting plate moving mechanism includes a slide rail and a cylinder. The riveting plate fixing seat is mounted on the slide rail, which is located below the fixing seat. The cylinder pushes the riveting plate fixing seat to perform reciprocating linear motion along the slide rail below the fixing seat. The riveting plate mechanism moves linearly on the slide rail by being pushed by the cylinder, and the stroke of the movement is controlled by a program.

[0014] Furthermore, the limiting mechanism includes a limiting plate fixing seat, the limiting plate being fixed to the limiting plate fixing seat by bolts, a spring being sleeved on the bolt, the spring being located between the limiting plate and the limiting plate fixing seat, a second pad being provided between the limiting plate and the bolt, a bolt sleeve being provided in the bolt hole of the limiting plate, the outer diameter of the bolt sleeve matching the inner diameter of the bolt hole, the inner diameter being smaller than the outer diameter of the spring, the top of the bolt sleeve extending outward to form a flange, the flange being fixed between the limiting plate and the pad after installation, a limiting plate moving mechanism being installed below the limiting plate fixing seat, the spring playing a buffering and protective role.

[0015] Furthermore, the limiting plate moving mechanism includes a slide rail and a cylinder. The limiting plate fixing seat is mounted on the slide rail, which is located below the fixing seat. The cylinder pushes the limiting plate fixing seat to reciprocate linearly along the slide rail below the fixing seat. The limiting plate mechanism moves linearly on the slide rail via the cylinder, and the stroke of the movement is controlled by a program.

[0016] Furthermore, the number of bolts is three, and the center points of the three bolts are not collinear.

[0017] Furthermore, the stamping mechanism includes a cylinder and a stamping head fixedly mounted on the frame, with the cylinder acting as a power source to drive the stamping head to apply stamping force to the joint.

[0018] The beneficial effects of adopting the technical solution of the present invention are:

[0019] 1. The rivet joint uses a petal-shaped structure and achieves riveting of the joint and the manifold through punching force.

[0020] 2. Use a contour jig, limit block, and starting device for pre-positioning to ensure position accuracy.

[0021] 3. The relative movement of the left and right interlocking limiting plates and the riveting plate enables the support of the riveting joint and the compaction of the manifold during the product riveting process.

[0022] 4. The joint is firmly riveted after being connected, and there is no need to heat it, so that the joint will not be heated again when it enters the brazing furnace, which would affect the material properties.

[0023] 5. It can simultaneously perform press-fit pre-fixing of one or more joints and manifolds.

[0024] 6. Different specifications and models of riveting can be achieved by quickly changing tooling fixtures. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the riveting mechanism in this utility model.

[0026] Figure 2 This is a front structural diagram of the riveting mechanism in this utility model.

[0027] Figure 3 This is a schematic diagram showing the positional relationship between the limiting plate and the riveting plate and the collector in this utility model.

[0028] Figure 4 This is a schematic diagram of the structure of the riveting plate in this utility model.

[0029] 1. Frame, 2. Stamping mechanism, 3. Fixed seat, 4. Manifold contouring fixture, 5. Connector contouring fixture, 6. Riveting mechanism, 601. Riveting plate, 602. Riveting plate fixed seat, 603. First pad, 7. Limiting mechanism, 701. Limiting plate, 702. Limiting plate fixed seat, 8. Bolt, 9. Spring, 10. Bolt sleeve, 11. Petal-shaped riveting head, 13. Riveting plate moving mechanism, 14. Limiting plate moving mechanism, 15. Manifold, 16. Connector. Detailed Implementation

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to specific implementation methods. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Combination Figures 1 to 4 In this embodiment, the riveting mechanism for the current collector and the connector includes a frame 1, on which a stamping mechanism 2 is mounted. A fixed seat 3 is located below the frame 1, used to fix the current collector contouring fixture 4 and the connector contouring fixture 5. After installation, the connector contouring fixture 5 is located on the current collector contouring fixture 4. A riveting mechanism 6 is provided on one side of the current collector contouring fixture 4, and a limiting mechanism 7 is provided on the other side. The relative movement of the riveting mechanism 6 and the limiting mechanism 7 causes the riveting plate 601 of the riveting mechanism 6 and the limiting plate 701 of the limiting mechanism 7 to form an insert-in structure, thereby supporting the riveted connector 16. After docking, the riveting plate 601 is located on the limiting plate 701. Specifically, the sides of the riveting plate 601 and the limiting plate 701 are trapezoidal. After docking, the sides of the riveting plate 601 and the limiting plate 701 are rectangular.

[0032] In this embodiment, pre-positioning is achieved by setting up a current collector contouring fixture 4, a connector contouring fixture 5, a limiting mechanism 7, and a starting device to ensure positional accuracy. The connector contouring fixture 5 is modeled according to the shape of the connector 16 to be riveted and is used for positioning and fixing the connector 16 before riveting. The current collector contouring fixture 4 is modeled according to the shape of the current collector to be riveted and is used for positioning and fixing the current collector 15. The relative movement of the left and right interlocking limiting plates 701 and the riveting plate supports the riveting connector 16, and compacts the current collector 15 during the product riveting process. It can also achieve simultaneous pre-fixing of one or more connectors 16 and current collectors 15 for riveting, and can achieve riveting of different specifications and models by quickly changing the tooling fixture.

[0033] The sides of the limiting plate 701 and the riveting plate 601 are designed with trapezoidal structures. After they are joined together, they form an overall rectangular structure. This provides more stable support for the riveting joint 16 and also compacts the collector 15 during the product riveting process, improving the quality and efficiency of riveting.

[0034] In a preferred embodiment, the riveting mechanism 6 includes a riveting plate fixing seat 602. The riveting plate 601 is fixed to the riveting plate fixing seat 602 by bolts 8. A spring 9 is sleeved on the bolt 8, located between the riveting plate 601 and the bolt 8. A riveting plate moving mechanism 13 is installed below the riveting plate fixing seat, and the spring 9 serves as a buffer and protector. Specifically, a first pad 603 is provided between the riveting plate 601 and the bolt 8, and the spring 9 is located between the first pad 603 and the bolt 8. A bolt sleeve 10 is provided in the bolt hole on the riveting plate. The outer diameter of the bolt sleeve 10 matches the inner diameter of the bolt hole, and the inner diameter of the bolt sleeve 10 is smaller than the outer diameter of the spring 9. The top of the bolt sleeve 10 extends outward to form a flange, which is fixed between the riveting plate and the first pad 603 after installation. In this embodiment, there are three bolts 8, and the center points of the three bolts 8 are not collinear. This structural design ensures that the rivet plate 601 can be more stably set on the limiting plate fixing seat 702 during the movement process and be pressed and connected with the limiting plate 701.

[0035] In a preferred embodiment, the riveting plate moving mechanism 13 includes a slide rail and a cylinder. The riveting plate fixing seat 602 is mounted on the slide rail, which is located below the fixing seat 3. The cylinder pushes the riveting plate fixing seat 602 to reciprocate linearly along the slide rail below the fixing seat 3. The riveting plate mechanism moves linearly on the slide rail by being pushed by the cylinder, and the stroke of the movement is controlled by a program.

[0036] In a preferred embodiment, the limiting mechanism 7 includes a limiting plate fixing seat 702. The limiting plate 701 is fixed to the limiting plate fixing seat 702 by bolts 8. A spring 9 is sleeved on the bolt 8, located between the limiting plate 701 and the limiting plate fixing seat 702. A second pad is provided between the limiting plate 701 and the bolt 8. A bolt sleeve 10 is provided in the bolt hole of the limiting plate 701. The outer diameter of the bolt sleeve 10 matches the inner diameter of the bolt hole, and the inner diameter is smaller than the outer diameter of the spring 9. The top of the bolt sleeve 10 extends outward to form a flange. After installation, the flange is fixed between the limiting plate 701 and the second pad. A limiting plate moving mechanism 14 is installed below the limiting plate fixing seat 702. The spring 9 provides buffering and protection. In this embodiment, there are three bolts 8, which are respectively set at the three vertices of the triangle. This structural design ensures that the limiting plate 701 can be more stably set on the pressing plate fixing seat 602 during movement and is pressed and connected with the pressing plate 601.

[0037] In a preferred embodiment, the limiting plate moving mechanism 14 includes a slide rail and a cylinder. The limiting plate fixing seat 702 is mounted on the slide rail, which is located below the fixing seat 3. The cylinder pushes the limiting plate fixing seat 702 to reciprocate linearly along the slide rail below the fixing seat 3. The limiting plate mechanism moves linearly on the slide rail by being pushed by the cylinder, and the stroke of the movement is controlled by a program.

[0038] The press-fit head uses a petal structure to achieve a riveting effect by locally squeezing the inside of the joint 16 during the press-fitting process, thus realizing the riveting of the joint 16 and the current collector 15. At the same time, the number and position of the petals on the petal-type press-fit head are adjusted according to the mechanism of the press-fit joint 16.

[0039] In a preferred embodiment, the stamping mechanism 2 in this embodiment includes a cylinder and a stamping head fixedly mounted on the frame 1. The cylinder drives the stamping head to apply stamping force to the connector 16, and at the same time controls the stroke or distance of the connector 16 being pressed down, for positioning and fixing the collector 15.

[0040] The working principle of the current collector and the riveting mechanism of the connector in this utility model is as follows:

[0041] 1. Manually place the current collector 15 into the current collector conformal fixture.

[0042] 2. Place connector 16 into connector conformal fixture 5.

[0043] 3. Activate the pneumatic locking button to clamp the workpiece and achieve workpiece positioning.

[0044] 4. The moving mechanism pushes the trapezoidal riveting plate 601 into the collector 15. The riveting plate 601 has a petal-shaped riveting head. After the riveting head moves to the riveting position, another moving structure is activated, pushing the limiting plate 701 into the collector 15 to achieve docking with the riveting plate 601, and raising the riveting plate 601 so that the riveting head extends into the connector 16 and fixes the collector and the riveting plate 601.

[0045] 5. Start the stamping button, the stamping head presses down, the joint flange part is subjected to force and drives the joint 16 to move downward in the direction of the vertical riveting plate 601, realizing the riveting of multiple workpieces. After the riveting is completed, the stamping head, the limit plate 701, and the riveting plate 601 return to their original positions in sequence.

[0046] 6. By quickly replacing the riveting plate 601, the manifold contouring tool 4, and the connector contouring tool 5, different models and specifications of connectors 16 and manifolds 15 can be riveted.

[0047] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent claim. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A press-riveting mechanism of a current collector and a joint, characterized by: The device includes a frame on which a stamping mechanism is mounted. A fixed base is provided below the frame for fixing a current collector contouring fixture and a connector contouring fixture. After installation, the connector contouring fixture is located on the current collector contouring fixture. A riveting mechanism is provided on one side of the current collector contouring fixture, and a limiting mechanism is provided on the other side. The relative movement of the riveting mechanism and the limiting mechanism causes the riveting plate of the riveting mechanism and the limiting plate of the limiting mechanism to form an insert-type structure, thereby supporting the riveted joint. After docking, the riveting plate is located on the limiting plate.

2. A mechanism for pressing and riveting a current collector and a tab according to claim 1, characterized in that: The sides of the rivet plate and the limiting plate are trapezoidal.

3. A mechanism for pressing and riveting a current collector and a tab according to claim 1, characterized in that: The riveting mechanism includes a riveting plate fixing seat, the riveting plate is fixed to the riveting plate fixing seat by bolts, a spring is provided on the outer sleeve of the bolt, the spring is located between the riveting plate and the bolt, and a riveting plate moving mechanism is installed below the riveting plate fixing seat.

4. A mechanism for swaging a joint in a current collector according to claim 3, wherein: A first pad is provided between the rivet plate and the bolt. The spring is located between the first pad and the bolt. A bolt sleeve is provided in the bolt hole on the rivet plate. The outer diameter of the bolt sleeve matches the inner diameter of the bolt hole. The inner diameter of the bolt sleeve is smaller than the outer diameter of the spring. The top of the bolt sleeve extends outward to form a flange. After installation, the flange is fixed between the rivet plate and the first pad.

5. A mechanism for swaging a joint in a current collector according to claim 3, wherein: The riveting plate moving mechanism includes a slide rail and a cylinder. The riveting plate fixing seat is installed on the slide rail, and the slide rail is located below the fixing seat. The cylinder pushes the riveting plate fixing seat to make a back-and-forth linear motion along the slide rail below the fixing seat.

6. The pressing and riveting mechanism for a current collector and a connector according to claim 1, characterized in that: The limiting mechanism includes a limiting plate fixing seat. The limiting plate is fixed to the limiting plate fixing seat by bolts. A spring is sleeved on the bolt. The spring is located between the limiting plate and the limiting plate fixing seat. A second pad is provided between the limiting plate and the bolt. A bolt sleeve is provided in the bolt hole of the limiting plate. The outer diameter of the bolt sleeve matches the inner diameter of the bolt hole. The inner diameter is smaller than the outer diameter of the spring. The top of the bolt sleeve extends outward to form a flange. After installation, the flange is fixed between the limiting plate and the second pad. A limiting plate moving mechanism is installed below the limiting plate fixing seat.

7. A mechanism for swaging a joint in a current collector according to claim 6, wherein: The limiting plate moving mechanism includes a slide rail and a cylinder. The limiting plate fixing seat is installed on the slide rail, and the slide rail is located below the fixing seat. The cylinder pushes the limiting plate fixing seat to make a back-and-forth linear motion along the slide rail below the fixing seat.

8. A mechanism for pressing and riveting a current collector and a tab according to claim 3 or 6, characterized in that: The number of bolts is three, and the center points of the three bolts are not collinear.

9. The mechanism of claim 1, wherein: The stamping mechanism includes a cylinder and a stamping head fixedly mounted on the frame. The cylinder drives the stamping head to apply stamping force to the joint.

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