Rapid locking and unlocking device for test interface daughter board and mother board

Abstract

The utility model relates to the technical field of electronic test equipment manufacturing, and discloses a rapid locking and unlocking device for a test interface mother-son board, which comprises a locking base, a locking cover plate and a translation component, the locking base is fixed on the test interface mother board, the translation component is clamped on the locking base, one side of the translation component is provided with a step guide rail, and the step guide rail is connected with the locking cover plate. A locking cover plate is fixed between the two locking bases, and a first rolling bearing on the locking cover plate enables the locking cover plate to generate locking or unlocking movement in the direction perpendicular to translation in the translation process of the translation component through the step height difference of the step guide rails. A second rolling bearing on the locking base is combined with the translation sliding rail, so that low-resistance connection between the translation component and the locking base is realized; the device is flexible in structural design, can be properly adjusted according to the sizes and shapes of different test interface mother boards and daughter boards, and is suitable for various test scenes.

Description

Technical Field

[0001] The utility model belongs to the technical field of electronic testing equipment manufacturing, and in particular relates to a device for quickly locking and unlocking a motherboard of a testing interface. Background Art

[0002] Automatic test equipment (ATE) is electronic testing equipment used to test semiconductor integrated circuits. The test interface board is the physical medium that connects the ATE test head to the circuit under test. To save costs, the test interface board often uses a combination of a test interface motherboard and a daughterboard. There is only one motherboard, which provides all test resources, and there can be multiple daughterboards depending on the different circuits under test.

[0003] The original test interface motherboard locking method is to connect the screw through the clamping cover to the nut on the motherboard side. The motherboard is locked and connected after the screw is tightened (referred to as the screw cover method).

[0004] However, the screw cover method has the following disadvantages: 1. The locking and unlocking speed is slow. The test motherboard generally has two or more sets of PogoPin components. Each set of PogoPin components requires at least two screws to lock the test daughter board and the motherboard. Each screw needs to be manually screwed in and out with a screwdriver, which is inefficient; 2. There is a safety hazard of damaging the test equipment. During the screwing-in and screwing-out operations, friction will produce metal powder, which will fall into the test head of the test equipment and may cause the precision electronic board in the test head to short-circuit and burn; 3. The screws and nuts will slip after being used for a long time, resulting in the inability to lock the motherboard and daughter board, increasing the maintenance workload; 4. During the locking and unlocking process of the screws and nuts, since multiple screws are operated sequentially, the entire daughter board plane cannot be tightened or released synchronously, resulting in increased wear on the test probe and the daughter board pad, shortening the service life of both. Summary of the Invention

[0005] The purpose of the present invention is to overcome the above problems and provide a test interface motherboard fast locking and unlocking device, which has the advantages of reliable structure, convenient operation and easy maintenance.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a test interface motherboard fast locking and unlocking device, comprising a locking base, a translation component and a locking cover;

[0008] Two locking bases are symmetrically provided, and both locking bases are fixed on the test interface motherboard. A translation component is respectively engaged with the two locking bases, a step guide rail is provided on one side of the translation component, and a translation slide rail is provided on the other side of the translation component. The two locking bases jointly fix the locking cover plate, and a first rolling bearing is provided on the outer side of the locking cover plate, the first rolling bearing is engaged with the step guide rail, and a second rolling bearing is provided on the locking base, and the second rolling bearing slides in the translation slide rail.

[0009] A further improvement of the present invention is that a positioning pin is provided on the locking base, and the positioning pin is configured to be cylindrical.

[0010] A further improvement of the present invention is that a positioning hole is provided on the locking cover plate, and the positioning hole and the positioning pin jointly position the locking cover plate.

[0011] A further improvement of the present invention is that a rolling bearing mounting hole is provided on the locking base, and a second rolling bearing is provided inside the rolling bearing mounting hole.

[0012] A further improvement of the present invention is that the locking base is fixed to the test interface motherboard by screws.

[0013] A further improvement of the present invention is that the locking base can be configured as a connected or split structure.

[0014] A further improvement of the present invention is that the locking cover is connected to the locking base via a positioning pin.

[0015] A further improvement of the present invention is that the two translational moving parts are connected by a push-pull handle.

[0016] A further improvement of the present invention is that the locking base, the translation component and the locking cover are all chamfered.

[0017] A further improvement of the present invention is that the first rolling bearing and the second rolling bearing are both cylindrical, and there are four of them.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The utility model provides a test interface motherboard quick locking and unlocking device, by fixing the locking base on the test interface motherboard, the locking base engages with the translation component, a step guide rail is provided on one side of the translation component, and a translation slide rail is provided on the other side of the translation component, and a locking cover plate is fixed between the two locking bases, and the first rolling bearing on the locking cover plate utilizes the step height difference of the step guide rail to make the locking cover plate generate a locking or unlocking movement in a direction perpendicular to the translation during the translation of the translation component. This design not only simplifies the locking and unlocking operation process, but also improves the accuracy and reliability of the locking; the second rolling bearing on the locking base is combined with the translation slide rail to realize a low-resistance connection between the translation component and the locking base, making the translation process smoother and unobstructed, reducing the heat and wear generated by friction, and extending the service life of the device; the structural design of the device is flexible and can be appropriately adjusted according to the sizes and shapes of different test interface motherboards and daughterboards, and is suitable for a variety of test scenarios.

[0020] Furthermore, a positioning hole is provided on the locking cover, and the positioning hole and the positioning pin jointly position the locking cover. The coordinated use of the positioning hole and the positioning pin can ensure that the locking cover can be accurately aligned with its predetermined position during the installation and locking process, avoiding problems such as loose locking or difficult unlocking due to position deviation, improving the positioning accuracy of the overall device, and also providing a stable support point for the locking cover, enhancing the structural stability of the locking cover in the locked state, and preventing loosening or deviation due to external force or vibration.

[0021] Furthermore, the locking base can be set as a connected or split structure. Depending on the specific application scenario and needs, the user can choose a locking base with a connected structure or a split structure. The connected structure is suitable for scenarios with less space restrictions or requiring higher overall stability, while the split structure is convenient for installation and debugging in complex environments, thereby improving the flexibility of the device; the locking base with a split structure can be installed and adjusted separately to adapt to the size, shape and installation position of different test interface motherboards. This design enables the device to be more widely used in various test scenarios, improving its adaptability and versatility. When the locking base needs to be maintained or replaced, the split structure design allows the user to handle each base separately without disassembling the entire device, which greatly simplifies the maintenance process and reduces maintenance costs and time costs.

[0022] Furthermore, the two translational components are connected by a push-pull handle. The design of the push-pull handle allows the user to control the synchronous movement of the two translational components through simple push-pull actions, thereby achieving rapid locking and unlocking of the test interface motherboard. This operation method is intuitive and easy to master, which reduces the difficulty of operation and improves work efficiency. In addition, since the two translational components are connected by a push-pull handle, they can maintain a high degree of synchronization during movement. This synchronization ensures that the two translational components can reach the predetermined position at the same time when locking or unlocking, avoiding problems such as loose locking or difficult unlocking due to lack of synchronization.

[0023] Furthermore, the locking base, the translational component and the locking cover are all chamfered. The chamfering treatment can eliminate sharp corners and reduce the risk of scratches or cuts caused by accidental touch during installation, disassembly or use, thereby improving the safety of the operator. Moreover, the edges of the components after chamfering are smoother, which is conducive to smooth coordination and assembly with other components. During the assembly process, it can reduce the assembly difficulties caused by edge friction or jamming, and improve the assembly efficiency and quality.

[0024] Furthermore, the first rolling bearing and the second rolling bearing are both cylindrical, and there are four of them. The cylindrical rolling bearings have a high load-bearing capacity and good rolling performance, and can effectively support and transmit the forces generated by the locking cover, locking base and translational components during movement. The provision of four bearings further enhances the stability and load-bearing capacity of the structure, and ensures the reliability and accuracy of the locking and unlocking actions. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings described herein are for illustrative purposes only and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the components in the drawings are merely illustrative and are used to facilitate understanding of the present invention, and are not intended to specifically limit the shapes and proportional dimensions of the components of the present invention.

[0026] Figure 1 This is a front view of the test interface motherboard quick locking and unlocking device of the utility model;

[0027] Figure 2 This is a rear view of the test interface motherboard quick locking and unlocking device of the present invention;

[0028] Figure 3 This is a schematic diagram of the locking cover of the test interface motherboard quick locking and unlocking device of the present invention;

[0029] Figure 4 This is a schematic diagram of the locking base of the test interface motherboard quick locking and unlocking device of the present invention;

[0030] Figure 5Schematic diagram of the stepped guide rails of the translational component of the test interface motherboard quick locking and unlocking device of the present invention;

[0031] Figure 6 This is a schematic diagram of the translational slide rail of the translational component of the test interface motherboard quick locking and unlocking device of the present invention;

[0032] Figure 7 This is a schematic diagram of the locking and unlocking principles of the test interface motherboard quick locking and unlocking device of the present invention.

[0033] Among them: 1. Locking base; 2. Translation component; 3. Step guide rail; 4. Locking cover; 5. Positioning pin; 6. Rolling bearing mounting hole; 7. Translation slide rail; 8. First rolling bearing; 9. Positioning hole; 10. Second rolling bearing; 11. Push-pull handle. DETAILED DESCRIPTION

[0034] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0036] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0037] In the description of the embodiments of the present invention, it should be noted that if the terms "upper," "lower," "horizontal," "inner," etc. appear to indicate an orientation or positional relationship, they are based on the orientation or positional relationship shown in the accompanying drawings, or are the orientation or positional relationship in which the product of the present invention is typically placed when in use. These terms are used solely to facilitate the description of the present invention and to simplify the description. They do not indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first," "second," etc. are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0038] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0039] In the description of the embodiments of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0040] The present invention is described in further detail below with reference to the accompanying drawings:

[0041] like Figure 1 As shown, the embodiment of the present invention provides a test interface motherboard quick locking and unlocking device, including a locking base 1, a translation component 2, a step guide rail 3, a locking cover 4, a positioning pin 5, a rolling bearing mounting hole 6, a translation slide rail 7, a first rolling bearing 8, a positioning hole 9, a second rolling bearing 10 and a push-pull handle 11;

[0042] There are two symmetrical locking bases 1, and the symmetrical arrangement of the two locking bases 1 helps to maintain the balance and stability of the entire device; the two locking bases 1 are fixed to the test interface motherboard by screws, and the locking bases 1 are firmly fixed to the test interface motherboard by screws, ensuring the close connection and stability between the locking base 1 and the motherboard; the two locking bases 1 are respectively engaged with a translation component 2, and the engagement connection between the translation component 2 and the locking base 1 enables the translation component 2 to move smoothly along a predetermined trajectory while maintaining a close fit with the locking base 1; a stepped guide rail 3 is provided on one side of the translation component 2, and a translation slide rail 7 is provided on the other side of the translation component 2. The two locking bases 1 jointly fix the locking cover 4, which enhances the stability and bearing capacity of the locking cover 4. This design ensures the stability of the locking cover 4 in the locked state and prevents it from loosening or falling off due to external force.

[0043] A first rolling bearing 8 is provided on the outside of the locking cover plate 4, and the first rolling bearing 8 is engaged and arranged in the step guide rail 3. The combination of the step height difference of the step guide rail 3 and the first rolling bearing 8 provides the locking cover plate 4 with a vertical locking or unlocking movement during the translation process of the translation component 2, thereby ensuring the reliability of locking and unlocking; a rolling bearing mounting hole 6 is provided on the locking base 1, and a second rolling bearing 10 is provided on the inner side of the rolling bearing mounting hole 6. The second rolling bearing 10 slides in the translation rail 7 to realize a low-resistance connection between the translation component and the locking base, making the translation process smoother and unobstructed, reducing the heat and wear generated by friction, and extending the service life of the device.

[0044] The first rolling bearing 8 and the second rolling bearing 10 are both cylindrical, and there are four of them. The cylindrical rolling bearings have a high load-bearing capacity and good rolling performance, and can effectively support and transmit the forces generated by the locking cover plate 4, the locking base 1 and the translation component 2 during movement. The provision of four bearings further enhances the stability and load-bearing capacity of the structure, and ensures the reliability and accuracy of the locking and unlocking actions.

[0045] A positioning pin 5 is provided on the locking base 1, and the positioning pin 5 is set to be cylindrical. A positioning hole 9 is provided on the locking cover 4, and the positioning hole 9 and the positioning pin 5 jointly position the locking cover 4. The coordinated use of the positioning hole 9 and the positioning pin 5 can ensure that the locking cover 4 can be accurately aligned with its predetermined position during the installation and locking process, avoiding problems such as loose locking or difficult unlocking due to position deviation, improving the positioning accuracy of the overall device, and also providing a stable support point for the locking cover 4, enhancing the structural stability of the locking cover 4 in the locked state, and preventing loosening or deviation due to external force or vibration.

[0046] The locking base 1 can be set as a connected or split structure. Depending on the specific application scenario and needs, the user can choose a locking base 1 with a connected structure or a split structure. The connected structure is suitable for scenarios with less space restrictions or requiring higher overall stability, while the split structure is convenient for installation and debugging in complex environments, thereby improving the flexibility of the device; the locking base 1 with a split structure can be installed and adjusted separately to adapt to the size, shape and installation position of different test interface motherboards. This design enables the device to be more widely used in various test scenarios, improving its adaptability and versatility. When the locking base 1 needs to be maintained or replaced, the split structure design allows the user to handle each base separately without disassembling the entire device, which greatly simplifies the maintenance process and reduces maintenance costs and time costs.

[0047] The two translational parts 2 are connected by a push-pull handle 11. The design of the push-pull handle 11 allows the user to control the synchronous movement of the two translational parts through simple push-pull actions, thereby achieving rapid locking and unlocking of the test interface motherboard. This operation method is intuitive and easy to master, which reduces the difficulty of operation and improves work efficiency. In addition, since the two translational parts 2 are connected by the push-pull handle 11, they can maintain a high degree of synchronization during movement. This synchronization ensures that the two translational parts 2 can reach the predetermined position at the same time when locking or unlocking, avoiding problems such as loose locking or difficult unlocking due to lack of synchronization.

[0048] The locking base 1, the translation component 2 and the locking cover plate 4 are all chamfered. The chamfering treatment can eliminate sharp corners and reduce the risk of scratches or cuts caused by accidental touch during installation, disassembly or use, thereby improving the safety of the operator. Moreover, the edges of the components after chamfering are smoother, which is conducive to smooth coordination and assembly with other components. During the assembly process, it can reduce assembly difficulties caused by edge friction or jamming, and improve assembly efficiency and quality.

[0049] How to use

[0050] like Figure 7 As shown, the mother-and-child board quick locking base 1 is installed on the test interface motherboard, the test interface daughter board to be locked is placed, and the locking cover plate 4 is positioned and installed according to the positioning pins 5 on the locking base 1. The first rolling bearings 8 on both sides of the locking cover plate 4 enter the stepped guide rails 3 of the translation component 2, and the second rolling bearings 10 on the inner side of the locking base 1 enter the translation slide rails 7 of the translation component 2. Then, the translation component 2 is pushed along the locking direction to push the first rolling bearing 8 of the locking cover plate 4 to the locking track, thereby realizing the downward translation movement of the locking cover plate 4 and the test interface daughter board, and achieving the locking and fixation of the mother-and-child board; conversely, the translation component 2 is pushed along the unlocking direction to realize the unlocking between the mother-and-child boards.

[0051] After the mother-daughter board quick locking and unlocking device is put into use, the locking and unlocking efficiency is improved by at least 2000%. The mother-daughter board can be locked and unlocked within 3 seconds, and the entire daughter board can be locked and unlocked synchronously, reducing the wear of the test probes and the daughter board pads. It is easy and labor-saving to operate, and both men and women can easily lock and unlock with one hand.

[0052] Many embodiments and applications beyond the examples provided will be apparent to those skilled in the art upon reading the foregoing description. Therefore, the scope of the present teachings should be determined not with reference to the foregoing description, but rather with reference to the preceding claims, along with the full scope of equivalents to which such claims are entitled. For the purpose of completeness, all articles and references, including the disclosures of patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein from the preceding claims is not a disclaimer of such subject matter, nor should it be construed that the applicants did not consider such subject matter to be part of the disclosed utility model subject matter.

[0053] The above content is a further detailed description of the utility model. It cannot be determined that the specific implementation methods of the utility model are limited to this. For ordinary technicians in the technical field to which the utility model belongs, they can make several simple deductions or substitutions without departing from the concept of the utility model, which should be regarded as belonging to the scope of protection of the utility model determined by the submitted claims.

Claims

1. A test interface motherboard quick locking and unlocking device, characterized in that: It comprises a locking base (1), a translation component (2) and a locking cover (4); Two locking bases (1) are symmetrically provided, and both locking bases (1) are fixed on the test interface motherboard. A translation component (2) is respectively engaged with the two locking bases (1), a step guide rail (3) is provided on one side of the translation component (2), and a translation slide rail (7) is provided on the other side of the translation component (2). The two locking bases (1) jointly fix the locking cover (4), and a first rolling bearing (8) is provided on the outer side of the locking cover (4). The first rolling bearing (8) is engaged with the step guide rail (3). A second rolling bearing (10) is provided on the locking base (1), and the second rolling bearing (10) slides in the translation slide rail (7).

2. A test interface motherboard quick locking and unlocking device according to claim 1, characterized in that: A positioning pin (5) is provided on the locking base (1), and the positioning pin (5) is configured to be cylindrical.

3. The test interface motherboard quick locking and unlocking device according to claim 2, characterized in that: A positioning hole (9) is provided on the locking cover plate (4), and the positioning hole (9) and the positioning pin (5) jointly position the locking cover plate (4).

4. The test interface motherboard quick locking and unlocking device according to claim 1, characterized in that: A rolling bearing mounting hole (6) is provided on the locking base (1), and a second rolling bearing (10) is provided inside the rolling bearing mounting hole (6).

5. The test interface motherboard quick locking and unlocking device according to claim 1, characterized in that: The locking base (1) is fixed to the test interface motherboard by screws.

6. The test interface motherboard quick locking and unlocking device according to claim 1, characterized in that: The locking base (1) can be configured as a one-piece or two-piece structure.

7. The test interface motherboard quick locking and unlocking device according to claim 1, characterized in that: The locking cover plate (4) is connected to the locking base (1) via a positioning pin (5).

8. The test interface motherboard quick locking and unlocking device according to claim 1, characterized in that: The two translational moving parts (2) are connected via a push-pull handle (11).

9. The test interface motherboard quick locking and unlocking device according to claim 1, characterized in that: The locking base (1), the translation component (2) and the locking cover plate (4) are all chamfered.

10. The test interface motherboard quick locking and unlocking device according to claim 1, characterized in that: The first rolling bearing (8) and the second rolling bearing (10) are both cylindrical, and the number of each is four.

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