Flexible guiding and fast clamping fixture for batch testing of electronic components

Abstract

The embodiment of the present application provides a flexible guiding and fast clamping clamp for batch testing of electronic components, and relates to the technical field of electronic component testing. The flexible guiding and fast clamping clamp for batch testing of electronic components comprises a test plate unit, a driving assembly, a bearing frame and a mounting module; at least two test interface insertion interfaces are arranged on the test plate unit; the driving assembly is connected with the bearing frame; the mounting module is mounted on the bearing frame and is used for bearing the test plate unit; the mounting module comprises a mounting bracket, a containing shell, a movable assembly and a clamping assembly; the movable assembly is arranged in the interior of the containing shell; and the mounting bracket is connected with the movable assembly. The differential stroke formed by the fact that the containing shell stops after being seated and the moving plate continues to advance is used for locking the mounting bracket in the actual alignment position, so that the accidental enumeration failure and misjudgment are significantly reduced.

Description

Technical Field

[0001] This invention relates to the field of electronic component testing technology, specifically to an elastically guided quick-clamping fixture for batch testing of electronic components. Background Technology

[0002] Currently, electronic components, especially storage products with connectors, require multiple tests during production, including power-on enumeration, capacity identification, read / write verification, and operating current detection. Traditional methods rely on manual insertion and removal of each component, which not only limits production speed but also accelerates wear on the test interfaces due to inconsistent force applied by the operator. To improve efficiency, existing technologies often employ a common propulsion mechanism to simultaneously drive multiple components under test (DUTs) into a test interface array. However, due to assembly deviations in the DUTs themselves and cumulative tolerances in the installation of the test interface array, the actual positions of each connector relative to the test interface are not entirely consistent. If all stations are constrained by the same rigid structure, errors during the common propulsion process will be directly distributed to each connector, easily leading to scratches, jamming, or uneven force on the interface tongues.

[0003] While existing self-aligning fixtures utilize elastic structures to automatically adjust the position of the tested component (DUT) along with the interface inlet during insertion, their design focus is typically limited to ensuring smooth insertion and resetting after withdrawal. For batch testing, the post-insertion stage presents particularly significant problems: the DUT's seating position differs from its actual offset. If the elastic structure remains flexible after seating, the impact of the common propulsion mechanism passing through the center, the wiring harness restoring force, or table vibration can easily cause slight retraction of the seated component, altering the contact pressure or triggering momentary contact micro-movements. This can lead to occasional enumeration failures, read / write interruptions, or current jumps, ultimately misjudging fixture disturbances as product defects. Applying rigid locking uniformly after the common propulsion mechanism is in place can easily disrupt the aligned position or prematurely constrain positions that are not fully seated due to differences in actual seating depth and offset between stations. Therefore, how to ensure that each component under test maintains independent elastic alignment before being seated, is fixed in place by its own state after being seated, maintains stable contact during the test, and restores flexibility before being withdrawn during a single common propulsion action has become a technical problem that needs to be solved in this field. Summary of the Invention

[0004] According to an embodiment of the present invention, a flexible-guided quick-clamping fixture for batch testing of electronic components is provided to solve the problems mentioned in the background art.

[0005] In a first aspect of the invention, a flexible-guided quick-clamping fixture for batch testing of electronic components is provided.

[0006] The elastic-guided quick-clamping fixture for batch testing of electronic components includes: a test board unit, a drive assembly, a support frame, and a mounting module; the test board unit is provided with at least two test interfaces for insertion; the drive assembly is connected to the support frame and is used to drive the support frame to move closer to or away from the test board unit; the mounting module is mounted on the support frame and is used to support the test board unit. The installation module includes a mounting bracket, a housing, a movable component, and a clamping component; the movable component is disposed inside the housing, the mounting bracket is connected to the movable component, and the clamping component is used to fix the mounting bracket.

[0007] Preferably, it further includes a base and a support side plate disposed on the base, with a receiving space for accommodating the drive assembly formed between the two support side plates, the drive assembly being disposed between the two support side plates, and the load-bearing frame being slidably mounted on the two support side plates.

[0008] Preferably, the test board unit can be detached from the base.

[0009] Preferably, the lower surface of the bearing frame is provided with a first slider, and the top of the supporting side plate is provided with a guide rail, and the first slider is slidably mounted on the guide rail.

[0010] Preferably, the drive assembly includes an operating handle, a rotating shaft, two transmission arms, a lever, and a movable plate; the rotating shaft is rotatably mounted between two supporting side plates, the operating handle is fixedly connected to one end of the rotating shaft, the two transmission arms are fixedly mounted on the rotating shaft, and the lever is mounted on the end of the transmission arm away from the rotating shaft; the movable plate is slidably mounted between the two supporting side plates, and a transmission component is provided on the lower surface of the movable plate, with a transmission groove formed on the transmission component, and the lever extends into the transmission groove.

[0011] Preferably, the movable component includes a support plate, a second slider, a connecting plate, a first positioning plate, two first elastic elements, two second elastic elements, and a second positioning plate; The connecting plate is fixedly connected to the mounting bracket, the second slider is slidably mounted on the bearing plate, the second slider is fixedly connected to the connecting plate, and the mounting bracket can slide in a first direction on the bearing plate through the connecting plate and the second slider; The support plate is slidably installed inside the housing, and the support plate can slide in a second direction. The second elastic element is installed inside the housing, and the second positioning plate is fixedly connected to the support plate. The surfaces of the second positioning plate and the first positioning plate are perpendicular.

[0012] Preferably, the first elastic element is formed by bending an elastic sheet.

[0013] Preferably, the clamping assembly includes two first clamping claws, two second clamping claws, a drive block, a first spring, a second spring, and a connector; the two first clamping claws are rotatably mounted on the support plate, the first positioning plate is located between the two first clamping claws, and the two first clamping claws are used to clamp the first positioning plate; The two second clamping claws are rotatably mounted on the connector, the connector is fixedly connected to the bottom wall of the housing, and the second positioning plate is located between the two second clamping claws; The two first gripping claws are provided with a first transmission part on one side of the drive block, and the two second gripping claws are provided with a second transmission part on one side of the drive block; The drive block is provided with a first drive part and a second drive part. The first drive part extends between the two first transmission parts and can drive the two first transmission parts to move away, causing the two first clamping claws to rotate and clamp the first positioning plate. The second drive part extends between the two second transmission parts and can drive the two second transmission parts to move away, causing the two second clamping claws to rotate and clamp and fix the second positioning plate. The movable plate is provided with a mounting base, and the drive block is slidably mounted on the mounting base. One end of the first spring is connected to the mounting base and the other end is connected to the drive block. One end of the second spring is connected to the drive block and the other end is connected to the connector.

[0014] Preferably, the carrier plate is provided with two first connecting shafts, which pass through the two first clamping claws respectively, and the connector is provided with two second connecting shafts, which pass through the two second clamping claws respectively.

[0015] Preferably, the plug-in interface on the plug-in test interface is provided with a guide for the insertion of the component under test, and the test board unit further includes a test motherboard, which has a built-in test circuit.

[0016] One or more technical solutions provided in this application have at least the following technical effects or advantages: This invention provides an elastically guided quick-clamping fixture for batch testing of electronic components. By setting multiple independent mounting modules on a support frame, and enabling the movable components of each module to provide orthogonal elastic displacement capability to the mounting bracket during insertion, the fixture achieves independent alignment of the tested components under common propulsion, effectively absorbing assembly deviations and interface tolerances, and reducing the risk of scratches and jamming. Simultaneously, utilizing the differential stroke formed by the housing stopping after insertion while the moving plate continues to advance, a first spring drives the drive block to drive the clamping claws to clamp the positioning plate, ensuring the mounting bracket is locked in place at its actual alignment position. During testing, contact micro-movements due to residual elastic degrees of freedom are eliminated, significantly reducing occasional enumeration failures and misjudgments. The setting that the first spring force is greater than that of the second spring and the design that the length of the positioning plate is greater than the effective range of the gripper ensure that multiple stations can lock sequentially according to their respective seating times and remain within the effective clamping space even in the offset state. The action sequence of the gripper first releasing and the moving components returning to flexibility before exiting during the return stroke avoids damage to the interface tongue caused by forcibly pulling it out in the locked state. This improves batch testing efficiency and contact stability while extending the service life of the test interface and reducing the product misjudgment rate.

[0017] It should be understood that the description in the Summary of the Invention is not intended to limit the key or essential features of the embodiments of the present invention, nor is it intended to restrict the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0018] The above and other features, advantages, and aspects of the various embodiments of the present invention will become more apparent from the accompanying drawings and the following detailed description. In the drawings, the same or similar reference numerals denote the same or similar elements, wherein: Figure 1 A three-dimensional structural schematic diagram of an elastically guided quick-clamping fixture for batch testing of electronic components according to an embodiment of the present invention is shown; Figure 2 An exploded view of the structure of an elastically guided quick-clamping fixture for batch testing of electronic components according to an embodiment of the present invention is shown. Figure 3 A three-dimensional structural schematic diagram of the drive assembly and support frame of an elastically guided quick-clamping fixture for batch testing of electronic components according to an embodiment of the present invention is shown. Figure 4 An exploded view of the mounting module of an elastically guided quick-clamping fixture for batch testing of electronic components according to an embodiment of the present invention is shown. Figure 5 A three-dimensional structural schematic diagram of the clamping assembly of an elastically guided quick-clamping fixture for batch testing of electronic components according to an embodiment of the present invention is shown. Figure 6 A schematic diagram of the connection structure between the clamping assembly and the movable assembly of an elastically guided quick-clamping fixture for batch testing of electronic components according to an embodiment of the present invention is shown. Figure 7 A cross-sectional schematic diagram of the movable component and clamping component of an elastically guided quick-clamping fixture for batch testing of electronic components according to an embodiment of the present invention is shown. Figure 8 A three-dimensional structural schematic diagram of the movable component of an elastically guided quick-clamping fixture for batch testing of electronic components according to an embodiment of the present invention is shown; Figure 9 An exploded view of the clamping assembly and movable assembly of an elastically guided quick-clamping fixture for batch testing of electronic components according to an embodiment of the present invention is shown. Figure 10 A three-dimensional structural schematic diagram of the insertion test interface of an elastically guided quick-clamping fixture for batch testing of electronic components according to an embodiment of the present invention is shown.

[0019] Explanation of reference numerals in the attached figures 1-Test board unit, 10-Component, 11-Plug-in test interface, 12-Guide part, 13-Test main board, 2-Drive assembly, 21-Operating handle, 22-Rotating shaft, 23-Transmission arm, 24-Toggle lever, 25-Moving plate, 251-Mounting base, 252-Transmission component, 253-Transmission groove, 3-Bearing frame, 31-First slider, 4-Mounting module, 41-Mounting bracket, 42-Housing housing, 43-Moving component, 431-Bearing plate, 4311-First connecting shaft, 432-Second slider, 43 3-Connecting plate, 434-First positioning plate, 435-First elastic element, 436-Second elastic element, 437-Second positioning plate, 44-Clamping assembly, 441-First clamping claw, 4411-First transmission part, 442-Second clamping claw, 4421-Second transmission part, 443-Drive block, 4431-First drive part, 4432-Second drive part, 444-First spring, 445-Second spring, 446-Connecting piece, 4461-Second connecting shaft, 5-Base, 51-Supporting side plate, 52-Guide rail. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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.

[0021] Furthermore, the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0022] like Figures 1 to 10 As shown, the elastic-guided quick-clamping fixture for batch testing of electronic components 10 includes a test board unit 1, a drive assembly 2, a support frame 3, and a mounting module 4. The test board unit 1 has at least two test interfaces 11 for insertion, and multiple test interfaces 11 are arranged at intervals along a predetermined direction to simultaneously perform electrical connection tests on multiple electronic components 10. The drive assembly 2 is connected to the support frame 3 and is used to drive the support frame 3 to move towards or away from the test board unit 1, thereby causing the mounting module 4 mounted on the support frame 3 to synchronously approach or leave the test interfaces 11, realizing batch insertion and withdrawal actions. The mounting module 4 is mounted on the support frame 3 and is used to support the electronic components 10 to be tested. The mounting module 4 includes a mounting bracket 41, a housing 42, a movable assembly 43, and a clamping assembly 44. The movable component 43 is disposed inside the housing 42. The mounting bracket 41 is connected to the movable component 43, allowing the mounting bracket 41 to undergo a limited range of elastic displacement relative to the housing 42 under the support of the movable component 43. This accommodates positional deviations between the electronic component 10 connector and the test interface 11 caused by assembly deviations or installation tolerances. The clamping component 44 is used to fix the mounting bracket 41 after the electronic component 10 connector is seated, ensuring that the mounting bracket 41 remains in its actual aligned position during testing, preventing slight retraction or movement of the contact state due to residual elastic degrees of freedom.

[0023] As the drive assembly 2 drives the support frame 3 to approach the test board unit 1, the plug of the electronic component 10 mounted on the mounting bracket 41 gradually approaches and enters the corresponding test interface 11. Since the movable assembly 43 is located inside the housing 42 and connected to the mounting bracket 41, the mounting bracket 41 can elastically displace in a direction perpendicular to the insertion direction under the action of the movable assembly 43. This allows the plug to adjust its lateral and vertical position independently as guided by the entrance of the test interface 11. When a plug of an electronic component 10 is fully seated, the mounting bracket 41 corresponding to that mounting module 4 stops moving forward, while the support frame 3, under the continuous action of the drive assembly 2, can still complete the reserved remaining stroke. At this time, the clamping assembly 44 responds to this relative displacement state and locks the mounting bracket 41 in its current actual position. After locking, the mounting bracket 41 no longer has elastic displacement freedom, thereby maintaining stable contact pressure between the plug and the test interface 11 during subsequent electrical performance testing, reducing instantaneous contact changes caused by vibration, harness restoring force, or operational disturbances.

[0024] After the test, the drive assembly 2 drives the support frame 3 away from the test board unit 1. During the initial phase of the return stroke of the support frame 3, the clamping assembly 44 first releases the fixing of the mounting bracket 41, allowing the mounting bracket 41 to regain the elastic displacement capability provided by the movable assembly 43. Subsequently, the support frame 3 continues to retract, smoothly pulling the mounting bracket 41 and the plug of the electronic component 10 onto it out of the test interface 11. This sequence of releasing the fixing first and then withdrawing avoids forcibly pulling out the plug while the mounting bracket 41 is still locked, thereby reducing damage to the tongue of the test interface 11 and the plug of the electronic component 10.

[0025] In this embodiment, a base 5 and two support side plates 51 disposed on the base 5 are also included. The two support side plates 51 are disposed opposite to each other and fixed on the base 5, forming a space between them for accommodating the drive assembly 2. The drive assembly 2 is disposed between the two support side plates 51, thereby subjecting its transmission structure to lateral constraint and protection by the support side plates 51. The load-bearing frame 3 is slidably mounted on the two support side plates 51, enabling the load-bearing frame 3 to reciprocate linearly in the direction of approaching or moving away from the test plate unit 1 under the action of the drive assembly 2, while maintaining the parallelism and stability of the motion trajectory, and avoiding the impact of lateral shaking on the alignment accuracy of the multiple mounting modules 4 and the corresponding test interface 11.

[0026] In this embodiment, the test board unit 1 can be disassembled relative to the base 5. This detachable connection method facilitates the removal of the entire test board unit 1 for maintenance or replacement when the test interface 11 is worn or needs to be replaced with a different specification interface, without having to disassemble other parts such as the drive assembly 2, the support frame 3, and the mounting module 4, thereby shortening equipment downtime and improving maintenance convenience.

[0027] In this embodiment, a first slider 31 is provided on the lower surface of the support frame 3, and a guide rail 52 is provided on the top of the support side plate 51. The first slider 31 is slidably mounted on the guide rail 52. Through the cooperation between the first slider 31 and the guide rail 52, the support frame 3 obtains precise linear guidance on the support side plate 51, so that the driving force transmitted by the drive assembly 2 can be smoothly converted into the horizontal movement of the support frame 3. This sliding cooperation also restricts the displacement of the support frame 3 in the direction perpendicular to the movement direction, ensuring that the multiple mounting modules 4 always maintain a predetermined height relationship with the test interface 11 during the advancement process, reducing the insertion resistance or incomplete seating phenomenon caused by height deviation.

[0028] In this embodiment, the drive assembly 2 includes an operating handle 21, a rotating shaft 22, two transmission arms 23, a lever 24, and a movable plate 25. The rotating shaft 22 is rotatably mounted between two supporting side plates 51. The operating handle 21 is fixedly connected to one end of the rotating shaft 22, and the operator can drive the rotating shaft 22 to rotate by applying a rotational torque to the operating handle 21. The two transmission arms 23 are fixedly mounted on the rotating shaft 22 and rotate synchronously with the rotating shaft 22. The lever 24 is mounted on the end of the transmission arm 23 away from the rotating shaft 22, thereby forming an arc motion around the rotating shaft 22 when the transmission arm 23 rotates. The movable plate 25 is slidably mounted between the two supporting side plates 51, and a transmission component 252 is provided on its lower surface. A transmission groove 253 is formed on the transmission component 252, and the lever 24 extends into the transmission groove 253. When the operating handle 21 drives the rotating shaft 22 and the transmission arm 23 to rotate, the lever 24 slides in the transmission groove 253 and pushes the moving plate 25 to move linearly along the support side plate 51, thereby driving the load-bearing frame 3 connected to the moving plate 25 to move forward and backward synchronously. This transmission structure converts the rotational motion of the operating handle 21 into the linear motion of the load-bearing frame 3, and uses the cooperation between the transmission groove 253 and the lever 24 to realize the transmission of force and the amplification of stroke, enabling the operator to complete the pushing action required for batch insertion with a smaller operating force.

[0029] In this embodiment, the movable component 43 includes a support plate 431, a second slider 432, a connecting plate 433, a first positioning plate 434, two first elastic elements 435, two second elastic elements 436, and a second positioning plate 437. The connecting plate 433 is fixedly connected to the mounting bracket 41. The second slider 432 is slidably mounted on the support plate 431 and fixedly connected to the connecting plate 433, thereby allowing the mounting bracket 41 to slide along a first direction on the support plate 431 via the connecting plate 433 and the second slider 432. This sliding engagement provides the mounting bracket 41 with a degree of freedom of movement in the first direction, allowing the plug of the electronic component 10 mounted on the mounting bracket 41 to automatically adjust its positional deviation along the first direction as it approaches the test interface 11. The support plate 431 is slidably mounted inside the receiving housing 42 and can slide along a second direction. The second elastic elements 436 are installed inside the receiving housing 42, and the second positioning plate 437 is fixedly connected to the support plate 431. The second elastic element 436 applies an elastic restoring force to the support plate 431, causing the support plate 431 to tend to remain in a predetermined intermediate position when no external force is applied. Simultaneously, when there is a second directional deviation between the electronic component 10 plug and the test interface 11, the support plate 431 is allowed to drive the mounting bracket 41 to generate a corresponding elastic displacement, achieving independent alignment in the second direction. The surfaces of the second positioning plate 437 and the first positioning plate 434 are perpendicular to each other. They are used to limit the displacement range and positioning reference of the movable component 43 in two orthogonal directions, ensuring that the movements in the first and second directions are decoupled and preventing the displacement in one direction from interfering with the alignment action in the other direction.

[0030] In this embodiment, the first elastic element 435 is formed by bending an elastic sheet. The bent elastic sheet has a predetermined bending stiffness and recovery characteristics, and can provide elastic support for the second slider 432 and the mounting bracket 41 connected thereto in the first direction. When the plug of the electronic component 10 is subjected to a component force in the first direction during the insertion process, the first elastic element 435 undergoes elastic deformation, allowing the mounting bracket 41 to shift along the first direction; after the insertion is completed or the external force disappears, the first elastic element 435 uses its own elasticity to tend to return the mounting bracket 41 to its original position. This bent elastic sheet structure provides the necessary flexibility while maintaining high in-plane stiffness in the insertion direction, thereby reliably transmitting the pushing force applied by the drive assembly 2 and the pull-out force during the return stroke, ensuring the effective execution of the insertion and withdrawal actions.

[0031] In this embodiment, the clamping assembly 44 includes two first clamping claws 441, two second clamping claws 442, a drive block 443, a first spring 444, a second spring 445, and a connector 446. The two first clamping claws 441 are rotatably mounted on the support plate 431, and a first positioning plate 434 is located between the two first clamping claws 441. The two first clamping claws 441 are used to clamp the first positioning plate 434. The two second clamping claws 442 are rotatably mounted on the connector 446, and the connector 446 is fixedly connected to the bottom wall of the receiving housing 42. A second positioning plate 437 is located between the two second clamping claws 442. This arrangement allows the first clamping claws 441 to move with the support plate 431, while the second clamping claws 442 maintain a fixed mounting reference relative to the receiving housing 42, thereby corresponding to the locking requirements of the movable assembly 43 in two orthogonal directions.

[0032] Two first gripping jaws 441 are provided with first transmission parts 4411 on the side facing the drive block 443, and two second gripping jaws 442 are provided with second transmission parts 4421 on the side facing the drive block 443. The drive block 443 is correspondingly provided with first drive parts 4431 and second drive parts 4432. The first drive part 4431 extends between the two first transmission parts 4411. When the drive block 443 moves in a predetermined direction, the first drive part 4431 forces the two first transmission parts 4411 to move away from each other, thereby driving the two first gripping jaws 441 to rotate and close, clamping the first positioning plate 434. The second drive part 4432 extends between the two second transmission parts 4421, driving the two second gripping jaws 442 to rotate and close in the same manner, clamping and fixing the second positioning plate 437. Locking actions in two directions can be completed synchronously or nearly synchronously with a single movement of the drive block 443.

[0033] A mounting base 251 is provided on the movable plate 25, and the drive block 443 is slidably mounted on the mounting base 251. One end of the first spring 444 is connected to the mounting base 251, and the other end is connected to the drive block 443; one end of the second spring 445 is connected to the drive block 443, and the other end is connected to the connector 446. This dual-spring series arrangement allows the propulsive force transmitted by the drive assembly 2 through the movable plate 25 to first act on the connector 446 and the housing 42 via the second spring 445, and then, during the differential phase after seating, the first spring 444 pushes the drive block 443 to complete the clamping trigger.

[0034] Specifically, the length of the second positioning plate 437 in the first direction is greater than the length of the second gripping claw 442 in the first direction, and the length of the first positioning plate 434 in the second direction is greater than the length of the first gripping claw 441 in the corresponding direction. This dimensional relationship ensures that when the movable component 43 shifts in the first or second direction, the positioning plate remains within the effective gripping space of the corresponding gripping claw, thereby enabling the gripping action to be completed in the actual alignment position, rather than forcibly pushing the positioning plate back to the nominal center.

[0035] During use, the movable plate 25 drives the mounting base 251 to move, which in turn drives the first spring 444, the second spring 445, and the drive block 443 to move forward synchronously. Since the second spring 445 is connected to the connector 446, the second spring 445 first undergoes a slight elastic deformation and transmits the thrust to the connector 446 and the housing 42, thereby driving the mounting bracket 41 and the electronic component 10 placed on it to move towards the test board unit 1. When the plug of the electronic component 10 is fully seated, the housing 42 stops moving forward, while the mounting base 251 continues to move under the action of the drive assembly 2. At this time, both the first spring 444 and the second spring 445 are further compressed. The elastic force of the first spring 444 acts on the drive block 443, pushing the drive block 443 to displace relative to the mounting base 251, thereby driving the first clamping claw 441 and the second clamping claw 442 to close, realizing the clamping and fixing of the first positioning plate 434 and the second positioning plate 437. The spring force of the first spring 444 is set to be greater than that of the second spring 445, so as to ensure that after the housing 42 stops, the continuous movement of the mounting base 251 can preferentially compress the first spring 444 and effectively push the drive block 443 to complete the clamping action.

[0036] Since multiple electronic components 10 are tested simultaneously on the same support frame 3, there are slight differences in the actual seating positions of each electronic component 10. After the first seated mounting module 4 stops in its housing 42, the first spring 444 pushes the drive block 443 to complete the clamping and locking of that station; the subsequent seated mounting module 4 is also locked by the corresponding first spring 444 after it is seated. The first spring 444 is configured to provide each mounting module 4 with a limited adaptive travel space, so that multiple stations can be fixed successively according to their actual seating time under a common propulsion action, without requiring all electronic components 10 to have the exact same seating depth.

[0037] In this embodiment, the support plate 431 is provided with two first connecting shafts 4311, which pass through two first clamping claws 441 respectively, allowing the first clamping claws 441 to rotate around the first connecting shafts 4311. The connector 446 is provided with two second connecting shafts 4461, which pass through two second clamping claws 442 respectively, allowing the second clamping claws 442 to rotate around the second connecting shafts 4461. This rotating installation method provides a definite rotation center for the clamping claws. When the driving part of the driving block 443 acts on the corresponding transmission part, the clamping claws can rotate smoothly around the connecting shafts and close, forming a reliable clamping of the positioning plate. After the driving is released, the clamping claws can also rotate in the opposite direction around the connecting shafts and release under the action of the restoring force, restoring the elastic displacement capability of the movable component 43.

[0038] In this embodiment, the plug-in interface 11 is provided with a guide portion 12 for the insertion of the component under test 10. The guide portion 12 guides the outer periphery of the plug during the initial insertion, allowing the plug to slide smoothly into the plug-in interface even with a certain positional or angular deviation, reducing the risk of hard collision or jamming. The test board unit 1 also includes a test main board 13, which has built-in test circuitry. The test main board 13 is electrically connected to each plug-in test interface 11 and can perform tests such as power-on enumeration, capacity identification, read / write verification, and current detection on multiple components under test 10 simultaneously or in a time-division manner after the plug is seated and locked by the clamping component 44. The test results are then output through a preset channel to complete batch electrical performance evaluation.

[0039] The working process of the fixture is as follows: After the operator places multiple test components 10 on the mounting brackets 41 of the corresponding mounting modules 4, the operator turns the operating handle 21, causing the rotating shaft 22 to drive the transmission arm 23 and the lever 24 to rotate. The lever 24 slides in the transmission groove 253 and pushes the moving plate 25 forward along the guide rail 52. The moving plate 25 then drives the first spring 444, the second spring 445 and the drive block 443 to move forward synchronously through the mounting base 251. The second spring 445 first undergoes elastic deformation and transmits the thrust to the connector 446 and the housing 42, causing the mounting bracket 41 supported by the movable component 43 to move the test components 10 closer to the test plate unit 1. The plug of the test component 10 enters the insertion test interface 11 under the guidance of the guide part 12. During the process, the movable component 43 allows the mounting bracket 41 to generate elastic displacement along the first direction and the second direction to absorb assembly deviations and achieve independent alignment. Once the plug of a component under test 10 is fully seated, the corresponding housing 42 stops moving forward, while the moving plate 25 continues to move forward under the continuous action of the drive assembly 2. The first spring 444 and the second spring 445 are further compressed. Because the elastic force of the first spring 444 is greater than that of the second spring 445, its elastic force pushes the drive block 443 to displace relative to the mounting base 251. This causes the first drive unit 4431 and the second drive unit 4432 to act on the first transmission unit 4411 and the second transmission unit 4421, respectively, driving the two first clamping claws 441 and the two second clamping claws 442 to rotate and close around their respective connecting shafts, clamping the first positioning plate 434 and the second positioning plate 437, thereby locking the mounting bracket 41 in its actual alignment position. After multiple mounting modules 4 complete locking successively according to their respective seating times, the test circuit built into the test motherboard 13 performs electrical performance testing on the component under test 10. After the test, the operator reverses the operating handle 21, the moving plate 25 retracts, the first spring 444 is released first and the pushing force on the drive block 443 disappears, the first clamping claw 441 and the second clamping claw 442 are released, and the moving component 43 regains its elastic displacement capability; then the moving plate 25 continues to retract and drives the housing 42 and the mounting bracket 41 to withdraw as a whole, so that the plug of the tested component 10 is smoothly disconnected from the plug-in test interface 11, completing one batch test cycle.

[0040] During the test, after the clamping components 44 of each mounting module 4 lock the mounting bracket 41, the test circuit built into the test motherboard 13 applies power to the device under test 10 one by one or synchronously and initiates communication protocol interaction through the electrical connection channels with each plug-in test interface 11. The test circuit first performs device enumeration to confirm the access status and basic identification information of the device under test 10; then it reads its nominal capacity and verifies it, then writes a preset data block to the device under test 10 and reads it back for comparison to verify the read / write integrity and data retention capability of the storage medium; at the same time, the test circuit monitors the operating current of the power supply circuit in real time to determine whether there are abnormal jumps or over-limit phenomena. Each test interface 11 corresponds to an independent detection channel, and the test results can be output through the status indicator on the test motherboard 13 or the external communication interface, thereby completing the batch electrical performance evaluation under the stable contact condition of the clamping components 44 being locked, and distinguishing the device under test 10 that is judged to be qualified or unqualified.

[0041] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A flexible-guided quick-clamping fixture for batch testing of electronic components (10), characterized in that, include: The test board unit (1), drive assembly (2), support frame (3), and mounting module (4) are provided; the test board unit (1) is provided with at least two test interfaces (11) for plugging in; the drive assembly (2) is connected to the support frame (3) and is used to drive the support frame (3) to move closer to or away from the test board unit (1); the mounting module (4) is mounted on the support frame (3) and is used to support the component under test (10). The installation module (4) includes an installation bracket (41), a housing (42), a movable component (43), and a clamping component (44); the movable component (43) is disposed inside the housing (42), the installation bracket (41) is connected to the movable component (43), and the clamping component (44) is used to fix the installation bracket (41).

2. The elastically guided quick-clamping fixture for batch testing of electronic components according to claim 1, characterized in that, It also includes a base (5) and a support side plate (51) disposed on the base (5), and a receiving space for accommodating the drive assembly (2) is formed between the two support side plates (51). The drive assembly (2) is disposed between the two support side plates (51), and the bearing frame (3) is slidably mounted on the two support side plates (51).

3. The elastically guided quick-clamping fixture for batch testing of electronic components according to claim 2, characterized in that, The test board unit (1) can be disassembled relative to the base (5).

4. The elastically guided quick-clamping fixture for batch testing of electronic components according to claim 2, characterized in that, The lower surface of the bearing frame (3) is provided with a first slider (31), and the top of the support side plate (51) is provided with a guide rail (52). The first slider (31) is slidably mounted on the guide rail (52).

5. The elastically guided quick-clamping fixture for batch testing of electronic components according to claim 2, characterized in that, The drive assembly (2) includes an operating handle (21), a rotating shaft (22), two transmission arms (23), a lever (24), and a moving plate (25). The rotating shaft (22) is rotatably mounted between two supporting side plates (51). The operating handle (21) is fixedly connected to one end of the rotating shaft (22). The two transmission arms (23) are fixedly mounted on the rotating shaft (22). The lever (24) is mounted on one end of the transmission arm (23) away from the rotating shaft (22). The moving plate (25) is slidably mounted between the two supporting side plates (51). A transmission component (252) is provided on the lower surface of the moving plate (25). A transmission groove (253) is provided on the transmission component (252). The lever (24) extends into the transmission groove (253).

6. The elastically guided quick-clamping fixture for batch testing of electronic components according to claim 5, characterized in that, The active component (43) includes a support plate (431), a second slider (432), a connecting plate (433), a first positioning plate (434), two first elastic elements (435), two second elastic elements (436), and a second positioning plate (437). The connecting plate (433) is fixedly connected to the mounting bracket (41), and the second slider (432) is slidably mounted on the bearing plate (431). The second slider (432) is fixedly connected to the connecting plate (433), and the mounting bracket (41) can slide in a first direction on the bearing plate (431) through the connecting plate (433) and the second slider (432). The support plate (431) is slidably installed inside the housing (42). The support plate (431) can slide in a second direction. The second elastic member (436) is installed inside the housing (42). The second positioning plate (437) is fixedly connected to the support plate (431). The surfaces of the second positioning plate (437) and the first positioning plate (434) are perpendicular.

7. The elastically guided quick-clamping fixture for batch testing of electronic components according to claim 6, characterized in that, The first elastic element (435) is formed by bending an elastic sheet.

8. The elastically guided quick-clamping fixture for batch testing of electronic components according to claim 6, characterized in that, The clamping assembly (44) includes two first clamping claws (441), two second clamping claws (442), a drive block (443), a first spring (444), a second spring (445), and a connector (446); the two first clamping claws (441) are rotatably mounted on the support plate (431), and the first positioning plate (434) is located between the two first clamping claws (441), and the two first clamping claws (441) are used to clamp the first positioning plate (434); Two second clamping claws (442) are rotatably mounted on a connector (446), the connector (446) is fixedly connected to the bottom wall of the housing (42), and the second positioning plate (437) is located between the two second clamping claws (442); The two first gripping claws (441) are provided with a first transmission part (4411) on the side of the drive block (443), and the two second gripping claws (442) are provided with a second transmission part (4421) on the side of the drive block (443). The drive block (443) is provided with a first drive part (4431) and a second drive part (4432). The first drive part (4431) extends between two first transmission parts (4411) and can drive the two first transmission parts (4411) away, causing the two first clamping claws (441) to rotate and clamp the first positioning plate (434). The second drive part (4432) extends between two second transmission parts (4421) and can drive the two second transmission parts (4421) away, causing the two second clamping claws (442) to rotate and clamp and fix the second positioning plate (437). The movable plate (25) is provided with a mounting base (251), the driving block (443) is slidably mounted on the mounting base (251), one end of the first spring (444) is connected to the mounting base (251), and the other end is connected to the driving block (443), one end of the second spring (445) is connected to the driving block (443), and the other end is connected to the connector (446).

9. The elastically guided quick-clamping fixture for batch testing of electronic components according to claim 8, characterized in that, The support plate (431) is provided with two first connecting shafts (4311), and the two first connecting shafts (4311) pass through the two first clamping claws (441) respectively. The connector (446) is provided with two second connecting shafts (4461), and the two second connecting shafts (4461) pass through the two second clamping claws (442) respectively.

10. The elastically guided quick-clamping fixture for batch testing of electronic components according to claim 1, characterized in that, The plug-in interface (11) is provided with a guide (12) for the insertion of the component under test (10). The test board unit (1) also includes a test motherboard (13), which has a built-in test circuit.

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