Rivet pulling tool for liquid cooling connector connection, connector, connecting assembly and rivet pulling connector

Abstract

The utility model relates to a riveting tool for connecting a liquid cooling joint, a joint, a connecting assembly and a riveting joint. The riveting tool for connecting the liquid cooling joint comprises a baffle plate, the first end of the mandrel penetrates through the baffle; the riveting mechanism comprises a sleeve and an elastic element, the core shaft is sleeved with the sleeve, the first end of the sleeve abuts against the baffle, the second end of the sleeve is connected with the first end of the elastic element, at least part of the elastic element is used for being arranged in the pipe cavity in a penetrating mode, and the outer wall of the second end of the elastic element is used for abutting against the inner wall of the second end of the connector; the expanding element is arranged at the second end of the mandrel; the elastic element is used for enabling the inner wall of the second end of the elastic element to abut against the outer wall of the expansion element when the expansion element moves from the second end to the first end, and the elastic element is turned outwards after abutting, so that the second end of the connector is turned outwards through the outer wall of the elastic element. The expansion element pushes the elastic element to achieve outward turning of the second end of the connector, so that riveting with small protrusions is achieved, installation is easy, and machining efficiency is high.

Description

Technical Field

[0001] This utility model relates to a riveting tool, and more particularly to a riveting tool for connecting liquid-cooled joints. Background Technology

[0002] The description in this section provides only background information related to the disclosure of this utility model and does not constitute prior art.

[0003] Currently, it is necessary to install joints on enclosed tubular workpieces to achieve liquid-cooled connections, thus requiring high standards for sealing and liquid flow. Existing technologies generally employ the following two methods for connection:

[0004] The first method is to use mechanical connection methods such as welding, bonding, screwing, and interference fit to connect hydraulic and pneumatic external threaded joints to closed pipe workpieces. Some of these methods require the use of sealing media and sealing rings, resulting in low production efficiency, difficult quality control, high skill requirements for operators, and poor consistency in connection quality.

[0005] The second method uses the design and connection principle of rivet nuts to connect hydraulic or pneumatic external threaded joints to enclosed tubular workpieces. However, after riveting, the joint protrusion left inside the enclosed tubing is large, which significantly reduces the heat exchange efficiency of the coolant and increases its liquid resistance. For liquid cooling systems in data centers and servers, heat exchange efficiency and coolant liquid resistance are critical indicators. Furthermore, the above-mentioned riveting method is difficult to apply to metal tubing with small cross-sectional dimensions.

[0006] It should be noted that the above introduction to the technical background is only for the purpose of providing a clear and complete explanation of the technical solutions of this utility model and facilitating understanding by those skilled in the art. It should not be assumed that these technical solutions are known to those skilled in the art simply because they have been described in the background section of this utility model. Utility Model Content

[0007] The purpose of this invention is to provide a riveting tool for liquid-cooled connectors, which can push an elastic element through an expanding element to achieve the outward turning of the second end of the connector, thereby achieving a riveting with a small protrusion, easy installation, and high processing efficiency.

[0008] To achieve the above objectives, this utility model discloses a riveting tool for connecting liquid-cooled joints, used to rivet a joint onto a workpiece. The joint has a first end and a second end disposed opposite to each other, the joint has a through-hole, the workpiece has a riveting hole, and the second end of the joint is used to be installed in the riveting hole. The riveting tool for connecting liquid-cooled joints includes:

[0009] baffle;

[0010] A mandrel, the first end of which passes through the baffle;

[0011] A riveting mechanism, comprising a sleeve and an elastic element, wherein the sleeve is sleeved on the mandrel, abutting a first end of the sleeve against the baffle, and a second end of the sleeve connected to a first end of the elastic element, wherein at least a portion of the elastic element is used to pass through the cavity, and the outer wall of the second end of the elastic element is used to abut against the inner wall of the second end of the joint;

[0012] An expansion element is disposed at the second end of the mandrel;

[0013] Wherein, the elastic element is used so that when the expansion element moves from the second end to the first end, the inner wall of the second end of the elastic element abuts against the outer wall of the expansion element, and after the abutment, the elastic element flips outward so that the outer wall of the elastic element flips the second end of the connector outward.

[0014] As a further description of the above technical solution, the elastic element has a first state. In the first state, the elastic element is configured as a tube, and the outer diameter of the elastic element is not greater than the inner diameter of the tube cavity.

[0015] As a further description of the above technical solution, the elastic element has a second state in which the second end of the elastic element is radially outwardly turned so that the outer wall of the second end of the joint abuts against the inner wall of the workpiece.

[0016] As a further description of the above technical solution, the first end of the expanding element that abuts against the inner wall of the elastic element is provided with a guide slope.

[0017] As a further description of the above technical solution, the outer diameter of the expansion element is not greater than the inner diameter of the cavity.

[0018] As a further description of the above technical solution, the first end of the mandrel includes an adapter portion for connecting to the output end of a manual, pneumatic, hydraulic, or electric rivet gun.

[0019] This utility model also discloses a connector for riveting and mounting on a workpiece, wherein the connector has a first end and a second end opposite to each other, the connector includes a flange portion between the first end and the second end, the second end of the connector is turned outward and abuts against the inner wall of the workpiece, and the second end face of the flange portion of the connector abuts against the outer wall of the workpiece.

[0020] As a further description of the above technical solution, a sealing ring is provided between the second end of the flange and the outer wall of the workpiece.

[0021] This utility model also discloses a connecting assembly, wherein the connecting assembly consists of a connector and a workpiece, the connector has a first end and a second end opposite to each other, the connector includes a flange portion between the first end and the second end, the second end of the connector is turned outward and abuts against the inner wall of the workpiece, and the second end face of the flange portion of the connector abuts against the outer wall of the workpiece.

[0022] This utility model also discloses a rivet joint for riveting and mounting on a workpiece, wherein the rivet joint has a first end and a second end opposite to each other, the joint includes a flange portion between the first end and the second end, the second end of the rivet joint is used to be turned outward and abut against the inner wall of the workpiece, the second end face of the flange portion of the rivet joint abuts against the outer wall of the workpiece, the rivet joint has a through cavity, and the inner wall of the cavity at the second end of the rivet joint is a smooth wall surface.

[0023] Based on the above technical solution, the beneficial effects of this utility model are as follows:

[0024] This utility model discloses a riveting tool for liquid-cooled joint connections. It achieves riveting with a small protrusion by using an expanding element to push an elastic element to turn the second end of the joint outward, making it easy to install and highly efficient. Specifically, a mandrel drives the expanding element to move, causing it to abut against the inner wall of the second end of the elastic element. This causes the inner wall of the second end of the elastic element to turn outward, thus turning the second end of the workpiece outward and achieving riveting. After riveting, the second end of the elastic element protrudes very little from the inner wall of the workpiece, resulting in minimal resistance to liquid flow. Compared to conventional riveted joints with larger protrusions, this improves the liquid cooling effect. Furthermore, compared to conventional mechanical connection methods such as welding, bonding, screwing, and interference fits, its riveting installation is simple, consistent, and provides excellent sealing performance.

[0025] This application effectively addresses the technological challenge of reliably assembling miniaturized, closed-section, and thin-walled tubular workpieces and joints through innovative structural design. Its technical solution demonstrates significant engineering practical value in reducing processing difficulty, improving connection stability, and expanding the range of applicable materials.

[0026] To further understand the features and technical content of this utility model, please refer to the following detailed description and drawings of this utility model. However, the drawings provided are for reference and illustration only and are not intended to limit this utility model. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments or prior art of this specification, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this specification. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a cross-sectional schematic diagram of a riveting tool for connecting liquid-cooled joints provided in the embodiments of this specification;

[0029] Figure 2 This is a front view of a riveting tool for connecting liquid-cooled joints provided in the embodiments of this specification before riveting;

[0030] Figure 3 This is a schematic diagram of the joint before riveting provided in the embodiments of this specification;

[0031] Figure 4 This is a schematic diagram of the joint after riveting provided in the embodiments of this specification;

[0032] In the picture:

[0033] 1. Connector; 11. Flange; 12. Sealing ring;

[0034] 2. Workpiece;

[0035] 3. Baffle;

[0036] 4. Spindle; 41. Adapter;

[0037] 5. Riveting mechanism; 51. Sleeve; 52. Elastic element;

[0038] 6. Expanding element; 61. Guide slope. Detailed Implementation

[0039] To enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this specification, and not all embodiments. Based on the embodiments in this specification, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this specification.

[0040] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can understand the advantages and effects of this utility model from the content disclosed in this specification. This utility model can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of this utility model. Furthermore, the accompanying drawings of this utility model are for simple illustration only and are not depictions of actual dimensions, as stated in advance. The following embodiments will further describe the relevant technical content of this utility model in detail, but the disclosed content is not intended to limit the scope of protection of this utility model.

[0041] It should be understood that while terms such as "first," "second," and "third" may be used in this document to describe various components or signals, these components or signals should not be limited by these terms. These terms are primarily used to distinguish one component from another, or one signal from another. Furthermore, the term "or" as used herein should, as appropriate, include any combination of one or more of the related listed items.

[0042] Please see Figure 1-2 This embodiment provides a riveting tool for connecting liquid-cooled connectors, used to rivet a connector 1 onto a workpiece 2. The connector 1 has a first end and a second end disposed opposite to each other, and the connector 1 has a through-hole. The workpiece 2 has a riveting hole, and the second end of the connector 1 is used to be installed in the riveting hole. The riveting tool for connecting liquid-cooled connectors includes:

[0043] baffle 3;

[0044] Mandrel 4, the first end of mandrel 4 passes through baffle 3;

[0045] The riveting mechanism 5 includes a sleeve 51 and an elastic element 52. The sleeve 51 is sleeved on the mandrel 4. The first end of the sleeve 51 abuts against the baffle 3. The second end of the sleeve 51 is connected to the first end of the elastic element 52. At least part of the elastic element 52 is used to pass through the cavity. The outer wall of the second end of the elastic element 52 is used to abut against the inner wall of the second end of the connector 1.

[0046] The expansion element 6 is disposed at the second end of the mandrel 4;

[0047] The elastic element 52 is used so that when the expansion element 6 moves from the second end to the first end, the inner wall of the second end of the elastic element 52 abuts against the outer wall of the expansion element 6, and after the abutment, the elastic element 52 flips outward so that the outer wall of the elastic element 52 flips the second end of the connector 1 outward.

[0048] With the above structure, in use, firstly, the second end of the connector 1 is inserted into the riveting hole of the workpiece 2, so that at least a portion of the second end of the connector 1 penetrates the inner wall of the workpiece 2; then, a liquid-cooled connector connecting riveting tool is inserted into the cavity of the connector 1, and the expansion element 6 protrudes from the second end of the cavity; specifically as follows... Figure 2 As shown, the expansion element 6 extends out of the connector 1 and is positioned on one side of the inner wall of the workpiece 2; then, the mandrel 4 is pulled from the second end to the first end, causing the mandrel 4 to move the expansion element 6 and flip the elastic element 52 of the riveting mechanism 5 outward, so that the second end of the connector 1 flips outward under the contact of the elastic element 52 until the second end of the connector 1 abuts against the inner wall of the workpiece 2. Specifically, as Figure 1 As shown, the second end of the riveted joint 1 undergoes expansion deformation, causing the outer wall of the second end of the joint 1 to be tightly riveted to the inner wall of the workpiece 2. Therefore, a tight riveted connection between the joint 1 and the workpiece 2 can be achieved.

[0049] During the riveting process described above, the joint 1 and the baffle 3 must always remain in a constant position relative to the workpiece 2, thus ensuring that the mandrel 4 can move stably relative to the joint 1 and the baffle 3.

[0050] like Figure 3 As shown, this is a schematic diagram of joint 1 before riveting. The second end of joint 1 is used for riveting at a location on the regularly axially extending cylinder wall. Figure 4 As shown, this is a schematic diagram of the riveted joint 1. The second end of the joint 1 is turned outward and then attached to and embedded in the inner wall of the workpiece 2, thus achieving the riveting fixation.

[0051] Based on the above riveting process, the expansion element 6 can push the elastic element 52 to achieve the outward turning of the second end of the joint, thereby achieving a riveting with a small protrusion, which is easy to install and has high processing efficiency. Specifically, the expansion element 6 is moved by the mandrel 4, causing the expansion element 6 to abut against the inner wall of the second end of the elastic element 52, causing the inner wall of the second end of the elastic element 52 to turn outward, and causing the second end of the workpiece 2 to turn outward, thus achieving riveting. The second end of the riveted joint 1 protrudes very little from the inner wall of the workpiece 2, resulting in less resistance to liquid flow. Compared with riveted joints with larger protrusions, this helps to improve the liquid cooling effect. Moreover, compared with general mechanical connection methods such as welding, bonding, screwing, and interference fit, its riveting installation is simple, consistent, and has excellent sealing performance. Figure 1 The riveted joint 1 shown has a very small proportion of the second end deformation portion after being riveted on one side of the inner wall of the workpiece 2. This results in a small resistance to the liquid and can significantly reduce the impact on the liquid flow in the workpiece 2.

[0052] In this embodiment, the connector 1 is configured as a sleeve-shaped structure with a mounting portion at the first end. The cavity formed inside it is used for the flow of liquid between the outside and the workpiece 2. The mounting portion at the first end can be configured as follows: Figure 1 The external thread shown is used for threaded connection with external water pipelines. In other embodiments, it can also be set as an internal thread or a snap-fit ​​connection, as long as a relatively stable and sealed connection effect can be achieved. Before riveting, the size of the protrusion of the connector 1 along the second end direction is preferably such that it can be completely turned outward and fit against the inner wall of the workpiece 2.

[0053] Workpiece 2 is set as a pipe with a closed cross section, and its inner wall has a chamber for liquid flow. Multiple riveting holes can be opened on workpiece 2 as needed. The structure of workpiece 2 at the riveting hole opening is straight and has a flat surface.

[0054] In this embodiment, the workpiece 2 of the closed-section metal tube only needs to have the second end of the corresponding joint 1 passed through the riveting hole during the riveting process, and then be turned up after riveting. Compared with the existing riveting method, its deformation does not require excessive upward pulling and abutting force on the workpiece 2 of the closed-section metal tube. Therefore, the material strength requirement of the workpiece 2 in this embodiment is not high, the wall thickness can be thinner, and the thickness can be set between 0.5mm and 5.0mm, making it more widely applicable.

[0055] The function of the baffle 3 is to prevent the sleeve 51 from displacing when the mandrel 4 pulls the riveting mechanism 5. Therefore, under the clamping of the sleeve 51 and the two ends of the expansion element 6, the elastic element 52 with a certain elasticity can be caused to turn outward in the radial direction. That is to say, the baffle 3 is actually in a stationary state during the riveting process in this embodiment.

[0056] The mandrel 4 primarily functions to lift the expansion element 6, which is fixed to the second end of the mandrel 4, allowing the mandrel 4 to move the expansion element 6 up and down. Before installation, the mandrel 4 and the expansion element 6 are closest to the second end. In the fully riveted state, the mandrel 4 and the expansion element 6 are closest to the first end, at which point the elastic element 52 and the second end of the connector 1 have the greatest degree of deformation.

[0057] In this embodiment, the material strength of the sleeve 51 in the riveting mechanism 5 is stronger than that of the elastic element 52. Therefore, under the pull of the mandrel 4, the sleeve 51 will not deform or will only undergo a very small metal deformation, thus causing the elastic element 52 to undergo a large deformation.

[0058] The expansion element 6 can be configured as a structure similar to a bullet, such as... Figure 1As shown, the radial dimension of the second end of the expansion element 6 is gradually limited, forming an arc-shaped bullet structure. Therefore, when the expansion element 6 is inserted into the connector 1, the second end of the expansion element 6 of the bullet structure can play a guiding role, which helps to improve the success rate of insertion and avoid scratches.

[0059] The expansion element 6 and the mandrel 4 can be connected by welding, snap-fitting, or gluing. In this embodiment, the expansion element 6 is snap-fitted around the second end of the mandrel 4 in a shell-like manner, which makes the connection between the expansion element 6 and the mandrel 4 solid. Moreover, the expansion element 6, which has higher metal strength and is more wear-resistant, uses less material, which helps to save costs.

[0060] Specifically, in the above-mentioned riveting process, the elastic element has a first state, which is the pre-riveting state. In the first state, the elastic element 52 is set as a tube, and the outer diameter of the elastic element 52 is not greater than the inner diameter of the tube cavity. The elastic element 52 has a second state, which is the post-riveting state. In the second state, the second end of the elastic element 52 is radially outward, so that the outer wall of the second end of the joint 1 abuts against the inner wall of the workpiece 2. The process of changing from the first state to the second state is the riveting process, in which the elastic element 52, which is a tube extending in a regular axial direction, gradually expands its second end to have a flared opening, and the second end of the joint 1, which is also a tube extending in a regular axial direction, gradually expands its second end to have a flared opening and is completely riveted and fitted to the inner wall of the workpiece 2.

[0061] Most importantly, through the riveting process of this embodiment, the second end of the connector 1 is a single-layer thin metal wall that is turned outward and tightly attached to the workpiece 2. The size of the second end of the connector 1 protruding from the inner wall of the workpiece 2 is extremely small. After riveting, one side is almost flush with the inner wall of the workpiece 2, which reduces the water resistance inside the channel. In addition, the wall thickness of the workpiece 2 can be made thinner, resulting in better cost control of the overall product and making it easier to achieve miniaturization.

[0062] The following are several preferred embodiments, which have better riveting effect:

[0063] Example 1

[0064] In this embodiment, a guide slope 61 is provided at the first end of the expanding element 6 that abuts against the inner wall of the elastic element 52. Specifically, the guide slope 61 is a ramp shape with an inner diameter that gradually decreases from the second end to the first end. By providing the guide slope 61, when the expanding element 6 moves towards the first end, the guide slope 61 can more smoothly lift the second end of the elastic element 52, avoiding jamming. At the same time, when the inner wall of the elastic element 52 rubs against the guide slope 61, the friction is reduced, avoiding mutual rubbing and affecting its lifespan.

[0065] Example 2

[0066] The outer diameter of the expansion element 6 is not greater than the inner diameter of the cavity. Preferably, the outer diameter of the expansion element 6 is equal to the inner diameter of the cavity. That is, without affecting the insertion of the expansion element 6 into the riveting hole of the workpiece 2, the larger the size of the expansion element 6, the more stable the thrust on the elastic element 52.

[0067] Example 3

[0068] The first end of the spindle 4 includes an adapter 41 for connecting to the output end of a manual, pneumatic, hydraulic, or electric rivet gun. In this embodiment, the adapter 41 may be configured with a fixing hole recessed inward along the direction of the first end, facilitating the insertion and locking of an external transmission device.

[0069] The above-disclosed content is only a preferred and feasible embodiment of the present utility model, and is not intended to limit the scope of the patent application of the present utility model. Therefore, all equivalent technical changes made using the contents of the present utility model specification and drawings are included in the scope of the patent application of the present utility model.

[0070] This utility model also provides an embodiment of a rivet joint for riveting and mounting on a workpiece. The rivet joint has a first end and a second end facing each other. A flange portion is included between the first and second ends. The second end of the rivet joint is turned outwards and abuts against the inner wall of the workpiece. The second end face of the flange portion of the rivet joint abuts against the outer wall of the workpiece. The rivet joint has a through-hole cavity, and the inner wall of the cavity at the second end of the rivet joint is a smooth wall surface. Compared to existing rivet joints, the second end of the rivet joint in this embodiment is turned outwards, therefore, there is no need to provide a threaded or connecting structure for fixing to the rivet tool and achieving lifting deformation; only a smooth wall surface for abutment is required.

[0071] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0072] Although this application has been described by way of examples, those skilled in the art will know that this application has many modifications and variations without departing from the spirit of this application, and it is intended that the appended embodiments include these modifications and variations without departing from this application.

Claims

1. A riveting tool for connecting liquid-cooled joints, used to rivet the joints onto a workpiece, wherein, The connector has a first end and a second end disposed opposite to each other, the connector has a through lumen, the workpiece has a riveting hole, and the second end of the connector is used for installation in the riveting hole. The liquid-cooled connector connection riveting tool comprises: baffle; A mandrel, the first end of which passes through the baffle; A riveting mechanism, comprising a sleeve and an elastic element, wherein the sleeve is sleeved on the mandrel, abutting a first end of the sleeve against the baffle, and a second end of the sleeve connected to a first end of the elastic element, wherein at least a portion of the elastic element is used to pass through the cavity, and the outer wall of the second end of the elastic element is used to abut against the inner wall of the second end of the joint; An expansion element is disposed at the second end of the mandrel; Wherein, the elastic element is used so that when the expansion element moves from the second end to the first end, the inner wall of the second end of the elastic element abuts against the outer wall of the expansion element, and after the abutment, the elastic element flips outward so that the outer wall of the elastic element flips the second end of the connector outward.

2. The riveting tool for connecting liquid-cooled joints according to claim 1, characterized in that: The elastic element has a first state, in which the elastic element is configured as a tube, and the outer diameter of the elastic element is not greater than the inner diameter of the tube cavity.

3. The riveting tool for liquid-cooled joint connection according to claim 1, characterized in that: The elastic element has a second state in which the second end of the elastic element is radially outwardly turned so that the outer wall of the second end of the joint abuts against the inner wall of the workpiece.

4. The riveting tool for connecting liquid-cooled joints according to claim 1, characterized in that: The first end of the expansion element that abuts against the inner wall of the elastic element is provided with a guide slope.

5. The riveting tool for connecting liquid-cooled joints according to claim 1, characterized in that: The outer diameter of the expansion element is not greater than the inner diameter of the cavity.

6. The riveting tool for connecting liquid-cooled joints according to claim 1, characterized in that: The first end of the mandrel includes an adapter for connecting to the output end of a manual, pneumatic, hydraulic, or electric rivet gun.

7. A connector for riveting and mounting on a workpiece, characterized in that: The connector has a first end and a second end, and the connector includes a flange portion between the first end and the second end. The second end of the connector is turned outward and abuts against the inner wall of the workpiece, and the end face of the second end of the flange portion of the connector abuts against the outer wall of the workpiece.

8. The connector according to claim 7, characterized in that: A sealing ring is provided between the second end of the flange and the outer wall of the workpiece.

9. A connecting component, characterized in that, The connecting assembly consists of a connector and a workpiece. The connector has a first end and a second end opposite to each other. The connector includes a flange portion between the first end and the second end. The second end of the connector is turned outward and abuts against the inner wall of the workpiece. The second end face of the flange portion of the connector abuts against the outer wall of the workpiece.

10. A rivet joint for riveting and mounting on a workpiece, characterized in that: The rivet joint has a first end and a second end, and the joint includes a flange portion between the first end and the second end. The second end of the rivet joint is used to be turned outward and abut against the inner wall of the workpiece. The second end face of the flange portion of the rivet joint abuts against the outer wall of the workpiece. The rivet joint has a through-hole cavity, and the inner wall of the cavity at the second end of the rivet joint is a smooth wall surface.

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