Floating centering test fixture

Abstract

The invention provides a floating centering test fixture. The floating centering test fixture comprises a base, a cover plate, a sliding block and two elastic pieces, the base comprises a bottom wall and a peripheral wall arranged around the outer edge of the bottom wall, the bottom wall and the peripheral wall jointly define a containing space, the end, away from the bottom wall, of the base is combined to the cover plate, and the cover plate is provided with a first through hole. The sliding block is located in the containing space and can slide in the radial direction, a first connecting hole is formed in the center of the sliding block, a first connecting structure is arranged in the first connecting hole and used for being connected with a tested connector, and the first connecting hole corresponds to the first through hole of the cover plate. Elastic pieces are arranged on the two opposite surfaces of the sliding block along the axis of the sliding block respectively and make contact with the cover plate and the bottom wall of the base respectively. The elastic pieces not only provide floating support and buffer positioning for the sliding block, but also can achieve a sealing effect and effectively prevent fluid leakage when the first connecting hole of the sliding block is a through hole, so that the accuracy and reliability of the testing process are improved.

Description

Technical Field

[0001] The present invention relates to a fixture for testing the performance of a joint, and particularly to a floating centering test fixture for simulating the floating characteristics and sealing effect of a joint. Background Art

[0002] With the rapid development of server technology, its heat dissipation requirements are constantly increasing. The traditional air-cooled heat dissipation method can no longer meet the needs of some high-performance servers, which has promoted the rise of new technologies such as cold plate heat dissipation and immersion heat dissipation. These technologies effectively transfer the heat generated inside the server to the liquid cooling medium, and then export the heat outside the server through the cooling medium, achieving efficient heat dissipation through heat exchange. In this process, the transmission of the liquid cooling medium between different mechanisms requires the support of quick-release joints, so quick-release joints have become an essential and important component in the liquid cooling heat dissipation system.

[0003] Traditional quick-release joints are mostly used in hydraulic systems or general liquid cooling devices, and their requirements for product life and sealing performance are relatively low, and the replacement cost is also relatively controllable. However, during the operation of the server, extremely high requirements are placed on reliability and stability. Therefore, the quick-release joint must have excellent sealing performance to prevent serious problems such as internal short circuits of the server caused by coolant leakage. In addition, the server needs to run stably for a long time, and any downtime caused by the repair or replacement of the quick-release joint may cause significant losses. Based on this, the server liquid cooling heat dissipation application places more stringent technical requirements on the quick-release joint.

[0004] In the application of server liquid cooling heat dissipation, the reliability test of the quick-release joint needs to simulate a variety of actual use scenarios, including repeated plugging and unplugging operations, to evaluate the durability and sealing performance of the joint product. At the same time, to truly restore the actual operating conditions, precise centering (core) of the insertion-end joint and the receiving-end joint must be ensured during each docking process. Especially for the receiving end with a blind plug type design, the centering function is particularly important. Any misalignment may result in inconsistent test conditions with the actual application scenario, thereby causing deviation or misjudgment of the test results.

[0005] In actual tests, due to the limitations of equipment processing tolerances, product tolerances, and the setup process, the insertion end and the receiving end may not be accurately centered, especially during multiple repeated docking operations. If the centering misalignment is too large, it is easy to cause abnormal wear of the joint, further resulting in sealing failure, thus affecting the authenticity and reliability of the test.

[0006] Such as Figure 1A and Figure 1BAs shown, in the conventional test fixture without floating function, when the insertion end connector M and the receiving end connector F are docked, if the center misalignment of the two is too large, the insertion end connector M will damage the sealing ring S near the entrance of the receiving end connector F. After repeated docking, the sealing ring S will be quickly worn out due to excessive misalignment force, eventually resulting in a significant decrease in sealing performance, thereby affecting the accuracy of the test results and the service life of the connector.

[0007] Therefore, designing a fixture that can achieve precise alignment to ensure the accuracy of plugging and unplugging operations and the stability of the testing process has become a technical problem that needs to be urgently solved in the relevant technical field. Summary of the invention

[0008] In order to solve the above technical problems, the object of the present invention is to provide a floating centering test fixture.

[0009] The present invention provides a floating centering test fixture, which is characterized by comprising:

[0010] A base having a bottom wall and a peripheral wall arranged around the outer edge of the bottom wall, wherein an end of the peripheral wall away from the bottom wall is provided with a joint surface, and the bottom wall and the peripheral wall jointly define a receiving space;

[0011] A cover plate, disposed on the joint surface of the base and having a first through hole;

[0012] a slider, disposed in the accommodating space, capable of sliding in a direction perpendicular to the axis of the base, the slider having a first surface and a second surface, the first surface and the second surface being respectively located at two ends of the slider along its own axis direction; the slider is provided with a first connecting hole, a first connecting structure is disposed in the first connecting hole, and is used to connect a tested joint, and the first connecting hole corresponds to the first through hole of the cover plate; and

[0013] Two elastic members are respectively arranged on the first surface and the second surface of the sliding block, wherein the elastic member arranged on the first surface contacts the cover plate, and the elastic member arranged on the second surface contacts the bottom wall of the base.

[0014] In the floating centering test fixture, the first connecting hole is a through hole, the inner wall of the first connecting hole is provided with the first connecting structure, and the first connecting structure is a screw thread structure.

[0015] In the floating centering test fixture, the first connecting hole is a blind hole, the inner wall of the first connecting hole is provided with the first connecting structure, and the first connecting structure is a screw thread structure.

[0016] The floating centering test fixture comprises a bottom wall of the base having a second connection hole, and a second connection structure is provided in the second connection hole.

[0017] For the floating centering test fixture described above, wherein, a second connection structure is provided on the inner wall of the second connection hole, and the second connection structure is a thread structure.

[0018] For the floating centering test fixture described above, wherein: it further includes a fixing base, and the fixing base is connected to the base; the fixing base has a third connection structure, and the fixing base is connected to the second connection hole of the base through the third connection structure.

[0019] For the floating centering test fixture described above, wherein the elastic member provided on the first surface of the slider is further used to provide a seal between the slider and the cover plate, and the elastic member provided on the second surface of the slider is further used to provide a seal between the slider and the bottom wall of the base, and the two elastic members jointly provide sliding support for the slider within the base.

[0020] For the floating centering test fixture described above, wherein: it further includes a fixing rod, at least one first fixing hole is provided on the outer peripheral wall of the base, the first fixing hole is a through hole, at least one second fixing hole is provided on the outer peripheral wall of the slider, and the fixing rod is used to pass through the first fixing hole and insert into the second fixing hole to fix the slider on the base.

[0021] For the floating centering test fixture described above, wherein the outer peripheral wall, the bottom wall and the cover plate jointly form a housing structure, the housing structure includes a cylindrical part, and the outer shape of the slider is a cylindrical structure matching the cylindrical part.

[0022] With the above structure adopted in the present invention, the elastic member disposed on the first surface contacts the cover plate, and the elastic member disposed on the second surface contacts the bottom wall of the base, which not only provides buffering and support during the test, but also enables the slider to radially float inside the base, thereby improving the stability and accuracy of the test. Description of the Drawings

[0023] Figure 1A It is a schematic diagram of the initial state during the docking process of the insertion end joint and the receiving end joint in the prior art test fixture.

[0024] Figure 1B It is a schematic diagram of the subsequent state during the docking process of the insertion end joint and the receiving end joint in the prior art test fixture.

[0025] Figure 2 It is an exploded view of the main components of the floating centering test fixture according to the first embodiment of the present invention.

[0026] Figure 3 It is a sectional view schematic diagram of the floating centering test fixture according to the first embodiment of the present invention.

[0027] Figure 4Schematic structural diagram of the floating centering test fixture according to the second embodiment of the present invention.

[0028] Figure 5 Schematic cross-sectional view of the floating centering test fixture according to the second embodiment of the present invention.

[0029] Figure 6 Schematic diagram of the floating centering test fixture according to the second embodiment of the present invention in an operating state.

[0030] Description of reference numerals: Insertion end joint M; Receiving end joints F, F'; Sealing ring S; Floating centering test fixtures 1, 1'; Bases 10, 10'; Joint surface 101; Bottom wall 102; Second connection holes 1020, 1020'; Second connection structure 1021; Outer peripheral wall 103; First fixing hole 1030; Fixing rod 104; Cover plates 11, 11'; First through holes 110; Sliders 12, 12'; First connection holes 120, 120'; First surfaces 121, 121'; Second surfaces 122, 122'; First connection structures 123, 123'; Second fixing holes 124; Tested joints 125, 125'; Elastic members 13, 13', 14, 14'; Fixing seats 15; Third connection structure 151; Accommodating spaces P, P'. Detailed Description of the Invention

[0031] The above objects, structures, and functional characteristics of the present invention will be described based on the preferred embodiments shown in the accompanying drawings.

[0032] Please refer to Figure 2 and Figure 3 as shown. Figure 2 Exploded view of the main components of the floating centering test fixture according to the first embodiment of the present invention. Figure 3 Schematic cross-sectional view of the floating centering test fixture according to the first embodiment of the present invention.

[0033] As Figure 2 and Figure 3 shown, the first embodiment of the present invention provides a floating centering test fixture 1, which mainly includes: a base 10, a cover plate 11, a slider 12, and two elastic members 13 and 14. Their structures and functions are described as follows:

[0034] The base 10 can be made of metal or non-metal materials. It has a bottom wall 102 and an outer peripheral wall 103 provided around the outer edge of the bottom wall 102. A joint surface 101 is provided at one end away from the bottom wall 102. The bottom wall 102 and the outer peripheral wall 103 jointly define an accommodating space P. The bottom wall 102 can be provided with a second connection hole 1020 according to requirements and configured with a second connection structure 1021, such as a thread structure, for specific connection or fixing applications.

[0035] In this embodiment, the floating centering test fixture 1 further includes a fixing rod 104, which can be made of a metal material or a hard material. At least one first fixing hole 1030 (through hole) is provided on the outer peripheral wall 103 of the base 10, and at least one second fixing hole 124 is provided on the outer peripheral wall of the slider 12. The fixing rod 104 passes through the first fixing hole 1030 and is inserted into the second fixing hole 124, so that the slider 12 can be firmly fixed on the base 10 to prevent it from moving, realizing a firm lock between the slider 12 and the base 10.

[0036] The cover plate 11 can be made of a metal material and is covered and fastened on the joint surface 101 of the base 10, and its fixing method can be realized by several screws (not shown in the figure). The fastening of the cover plate 11 not only provides a firm connection with the base 10, but also effectively restricts the axial movement of the slider 12 in the accommodation space P, thereby ensuring good sealing and sliding performance of the overall structure. In addition, a first through hole 110 is provided on the cover plate 11, which corresponds to the first connection hole 120 of the slider 12, and a test joint 125 can pass through and extend to the outside of the cover plate 11 to meet the test requirements. In the present invention, the fixing method of the cover plate 11 and the base 10 is not limited to screw locking, and a tenon structure or other suitable fixing mechanisms can also be used to further improve the flexibility and reliability of assembly.

[0037] The slider 12 can be made of a metal material and is arranged in the accommodation space P of the base 10, sandwiched by the bottom wall 102 of the base and the cover plate 11, and can slide in a direction perpendicular to the axis of the base 10. In this embodiment, the slider 12 is placed in the cylindrical accommodation space P, and radial sliding can be realized to meet the requirements of centering adjustment during the test. The slider 12 has a first surface 121 and a second surface 122, which are respectively located at opposite ends of the slider 12 along its own axis direction, so as to provide a stable support and buffering foundation. A first connection hole 120 is opened along the axis direction of the slider 12 at the center of the slider 12. This first connection hole 120 is a through hole, and a first connection structure 123, such as a thread structure, is provided on its inner wall to adapt to various forms of test joints and provide a firm locking effect. Such a design not only enhances the adaptability of the slider 12, but also effectively improves the installation stability and operation convenience of the test joint 125.

[0038] In this embodiment, the outer peripheral wall 103, the bottom wall 102 of the base 10 and the cover plate 11 together form a housing structure, which includes a cylindrical part, and the outer shape of the slider 12 is a cylindrical structure matching the cylindrical part, ensuring that the slider 12 can slide radially in the accommodation space P and form a firm fit with the base 10.

[0039] Two elastic members 13 and 14, such as O-rings, are respectively disposed on the first surface 121 and the second surface 122 of the slider 12. The elastic member 13 is located on the first surface 121 of the slider 12 and is in close contact with the inner surface of the cover plate 11; the elastic member 14 is located on the second surface 122 of the slider 12 and is in close contact with the inner surface of the bottom wall 102 of the base 10. This structural configuration can not only provide effective buffering and support during the test, but also ensure stable radial sliding of the slider 12 within the accommodation space P, allowing it to perform centering adjustment according to the eccentricity of the joint 125 under test. In addition, in this embodiment, the first connection hole 120 of the slider 12 is a through hole, and the floating centering test fixture 1 can be connected to a medium pressure source (not shown in the figure), allowing fluid to pass through the base 10, the slider 12, and the joint 125 under test. For this application, in addition to providing the floating function of the slider 12, the two elastic members 13 and 14 also achieve a sealing function. Among them, the elastic member 13 located on the first surface 121 of the slider 12 can ensure the seal between the slider 12 and the cover plate 11, while the elastic member 14 located on the second surface 122 of the slider 12 provides the seal between the slider 12 and the bottom wall 102 of the base 10, thereby effectively preventing fluid leakage and ensuring the safety and accuracy of the test process.

[0040] In this embodiment, the floating centering test fixture 1 further includes a fixing base 15 for fixing the test fixture to an external device (not shown in the figure) that provides a medium pressure source (fluid). The fixing base 15 is connected to the base 10, and is provided with a third connection structure 151 having an external thread structure, and the third connection structure 151 cooperates with the second connection hole 1020 of the base 10 for connecting the fixing base 15 and the base 10. Through the above configuration, the stable installation of the entire fixture in practical applications is achieved.

[0041] In this embodiment, through the first connection hole 120 of the slider 12 and the first through hole 110 of the cover plate 11, the joint 125 under test is inserted from the outside and firmly locked. The first connection hole 120 is a through hole. During the test process, the medium pressure source can be input or output from the outside of the base 10, enabling the fluid to flow through the slider 12 and the joint 125 under test to simulate various test conditions. The configuration of the two elastic members 13 and 14 supports the stable radial sliding of the slider 12 within the accommodation space P, thus significantly improving the centering accuracy and test stability. In addition, the elastic members 13 and 14 also have sealing performance at the same time, which can effectively prevent fluid leakage and ensure the safety and reliability of the test process. Therefore, this floating centering test fixture 1 is particularly suitable for applications such as server liquid cooling and other applications with high sealing and precision requirements for quick-release joints. In addition, the second connection hole 1020 of the bottom wall 102 of the base 10 is connected to the third connection structure 151 of the fixing base 15, and is connected to an external device (not shown in the figure) that provides a medium pressure source through the fixing base 15, further improving the installation convenience.

[0042] Please refer to Figure 4 and Figure 5 as shown Figure 4 which is a schematic structural view of the floating centering test fixture according to the second embodiment of the present invention Figure 5 which is a schematic sectional view of the floating centering test fixture according to the second embodiment of the present invention

[0043] Compared with the first embodiment, the main difference of the floating centering test fixture 1' according to the second embodiment of the present invention lies in the different form of the first connection hole 120' of the slider 12' and the application requirements. The slider 12' is arranged in the accommodation space P' and is clamped by the bottom wall of the base 10' and the cover plate 11', and can slide in the radial direction, and the two elastic members 13' and 14' provide the functions of buffering and centering adjustment, and its configuration is the same as that of the first embodiment. A first connection hole 120' is provided axially along the center of the slider 12', and the first connection hole 120' is changed from a through hole to a blind hole, and a first connection structure 123' (such as a thread structure) is provided on the inner wall for locking or connecting the tested joint 125'. Since the first connection hole 120' is a blind hole design, the blind hole structure does not penetrate the whole slider 12', and is applicable to the test application scenario where it is not necessary to make the fluid medium flow from the bottom wall of the base 10' through the slider 12' to the tested joint 125' (connected up and down). The basic structures of other components such as the base 10', the cover plate 11', and the slider 12' are the same as those of the first embodiment, and the relevant details have been described in the foregoing description and will not be repeated here

[0044] The floating centering test fixture 1' of this embodiment adopts the slider 12' designed in the form of a blind hole, which is applicable to the application scenario where only the floating centering and one-way sealing functions of the tested joint 125' need to be simulated. The slider 12' can slide radially in the accommodation space P' of the base 10', and the two elastic members 13' and 14' provide the supporting and adjusting functions, improving the centering accuracy and test stability of the floating centering test fixture 1'. Therefore, this embodiment is also applicable to the application occasions such as server liquid cooling and heat dissipation and other application occasions with strict requirements for the quick-release joint test

[0045] Please refer to Figure 6 as shown Figure 6 which is a schematic view of the floating centering test fixture of this embodiment in an operating state

[0046] As Figure 5 and Figure 6As shown, the floating centering test fixture 1' can be installed on a plane through the second connection hole 1020' of the base 10'. The plug-in end under-test joint 125' can be firmly fixed in the first connection hole 120' of the slider 12' and extends outside the cover plate 11' through the first through hole of the cover plate 11'. When the plug-in end under-test joint 125' is repeatedly inserted and pulled out for reliability testing with another receiving end under-test joint F', the two elastic members 13', 14' can provide floating support for the slider 12', enabling the slider 12' to slide radially within the base 10' to correct the centering deviation. This design effectively solves the centering deviation problem caused by the machining tolerance or installation error between the plug-in end under-test joint 125' and the receiving end under-test joint F', thereby improving the accuracy and stability of the test and preventing the plug-in end joint 125' from damaging the sealing ring inside the receiving end joint.

[0047] The floating centering test fixture of the embodiment of the present invention, through the coordinated configuration of the base, slider, cover plate and two elastic members, enables the slider to be clamped between the bottom wall of the base and the cover plate within the accommodation space and can stably slide radially, significantly improving the centering accuracy and test stability of the under-test joint. The slider is provided with a first connection hole and a connection structure, which can adapt to different forms of under-test joints and provide a firm fixing function. The two elastic members not only provide floating support for the slider, but also have a sealing effect when the slider is designed as a through hole, effectively preventing fluid leakage, thereby ensuring the accuracy and reliability of the test. In addition, the base is provided with a connection hole and is firmly connected to an external device through a fixing seat for medium transportation, making this fixture particularly suitable for server liquid cooling and other high-requirement quick-release joint test scenarios. The present invention effectively solves the centering deviation problem caused by machining tolerance or installation error, prevents joint damage, and ensures the authenticity and stability of multiple insertion and extraction tests.

Claims

1. A floating centering test fixture, characterized in that: include: A base having a bottom wall and a peripheral wall arranged around the outer edge of the bottom wall, wherein an end of the peripheral wall away from the bottom wall is provided with a joint surface, and the bottom wall and the peripheral wall jointly define a receiving space; A cover plate, disposed on the joint surface of the base and having a first through hole; a slider, disposed in the accommodating space, capable of sliding in a direction perpendicular to the axis of the base, the slider having a first surface and a second surface, the first surface and the second surface being respectively located at two ends of the slider along its own axis direction; the slider is provided with a first connecting hole, a first connecting structure is disposed in the first connecting hole, and is used to connect a tested joint, and the first connecting hole corresponds to the first through hole of the cover plate; and Two elastic members are respectively arranged on the first surface and the second surface of the sliding block, wherein the elastic member arranged on the first surface contacts the cover plate, and the elastic member arranged on the second surface contacts the bottom wall of the base.

2. The floating centering test fixture according to claim 1, characterized in that: The first connection hole is a through hole, the inner wall of the first connection hole is provided with the first connection structure, and the first connection structure is a screw thread structure.

3. The floating centering test fixture according to claim 1, characterized in that: The first connecting hole is a blind hole, the inner wall of the first connecting hole is provided with the first connecting structure, and the first connecting structure is a screw thread structure.

4. The floating centering test fixture according to claim 1, characterized in that: The bottom wall of the base is provided with a second connection hole, and a second connection structure is provided in the second connection hole.

5. The floating centering test fixture as claimed in claim 4, characterized in that: The inner wall of the second connecting hole is provided with the second connecting structure, and the second connecting structure is a screw thread structure.

6. The floating centering test fixture as claimed in claim 2, characterized in that: It also includes a fixing base, which is connected to the base; the fixing base has a third connecting structure, and the fixing base is connected to the second connecting hole of the base through the third connecting structure.

7. The floating centering test fixture as claimed in claim 2, characterized in that: The elastic member arranged on the first surface of the slider is also used to provide a seal between the slider and the cover plate, and the elastic member arranged on the second surface of the slider is also used to provide a seal between the slider and the bottom wall of the base. The two elastic members together provide sliding support for the slider in the base.

8. The floating centering test fixture according to claim 1, characterized in that: It also includes a fixing rod, the outer peripheral wall of the base is provided with at least one first fixing hole, the first fixing hole is a through hole, the outer peripheral wall of the slider is provided with at least one second fixing hole, the fixing rod is used to pass through the first fixing hole and insert into the second fixing hole to fix the slider on the base.

9. The floating centering test fixture according to claim 1, characterized in that: The outer peripheral wall, the bottom wall and the cover plate together form a shell structure, which includes a cylindrical part, and the sliding block has an outer shape of a cylindrical structure matching the cylindrical part.

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