Ict double stroke mechanism

Abstract

The utility model discloses ICT double stroke mechanism, including base, upper pressing plate and hook drive module, be used for installing in the processing mesa, be equipped with the lower mould on the base, the back surface rotation connection of lower mould is used for the upper fixed frame of mould closing, be equipped with in the inside of upper fixed frame, the inner surface of lower mould is equipped with the component for being detected, the utility model discloses when the electromagnet of hook drive module is electrified and drives, can accurate drive hook post along the guidance of concave frame and carry out telescopic motion, and hook post penetrates concave frame and forms the engagement with the hook seat, effectively avoids the looseness or deviation when mould closing, when the push plate of pneumatic cylinder drive module slides, the guide screw on the surface of upper reinforcing plate passes the limiting slot of movement push plate, the movement track of movement push plate is restricted, avoids the deflection in the movement, through double stroke design, only long needle contact PCBA and carry out test in the second stroke, avoided the interference produced by short needle as antenna, ensure the stability and accuracy of test signal.

Description

Technical Field

[0001] This utility model relates to the field of ICT testing technology, specifically to an ICT dual-stroke mechanism. Background Technology

[0002] Existing fixtures perform ICT and FCT tests separately. The difference between the two tests is that FCT testing only requires a portion of the probes to be tested, otherwise the accuracy of FCT testing will be affected. ICT testing, on the other hand, requires a large number of probes.

[0003] A multifunctional dual-stroke test fixture, disclosed in CN211826148U, includes an upper mold and a lower mold. The lower end face of the upper mold has multiple test probes, some of which are longer than the others. The upper end face of the lower mold has a dual-stroke limiting plate with multiple limiting posts. The lower end face of the upper mold has corresponding clearance holes for the limiting posts. The lower mold has a drive assembly for controlling the left and right movement of the dual-stroke limiting plate. During the left and right movement of the dual-stroke limiting plate, the limiting posts switch between abutting against the lower end face of the upper mold and inserting into the clearance holes. By controlling the dual-stroke limiting plate at stroke 1 and stroke 2 using the drive assembly, ICT and FCT tests can be performed. However, the above-mentioned fixture lacks effective positioning when the upper and lower molds are closed. During use, the upper and lower molds are not securely fixed, leading to unstable opening and closing forces over long-term use, making it inconvenient to use.

[0004] In light of this, we are launching the ICT Dual-Travel Agency. Utility Model Content

[0005] The purpose of this invention is to provide an ICT dual-stroke mechanism to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an ICT dual-stroke mechanism, comprising: a base, an upper pressure plate, and a hook drive module;

[0007] It is used to be installed on the processing table. The base is equipped with a lower mold, and the back of the lower mold is rotatably connected to an upper fixing frame for mold closing.

[0008] The components to be tested are located on the inner surface of the lower mold, inside the upper fixed frame.

[0009] It is located at the four corners of the surface of the upper pressure plate, and at the four corners of the surface of the lower mold, there are hook seats for fixing the hook drive module. The hook drive module includes an electromagnet fixing seat connected to the inner side of the upper fixing frame. The surface of the electromagnet fixing seat is provided with an electromagnet for driving, and one end of the electromagnet is connected to a hook post. The surface of the electromagnet fixing seat is provided with a concave frame on one side of the electromagnet, and the surface of the concave frame is provided with an installation groove for installing the hook seat. The hook post passes through the concave frame to form a fixation.

[0010] Preferably, the surface of the upper pressure plate is provided with a cylinder drive module between the four sets of hook drive modules. The cylinder drive module includes an upper reinforcing plate for fixing to the upper fixed frame. The surface of the upper reinforcing plate is provided with a cylinder fixing seat fixed by bolts. The side of the upper reinforcing plate is provided with a cylinder body for driving. A motion push plate is slidably connected to the surface of the upper reinforcing plate. The surface of the upper reinforcing plate is provided with a sensing sensor located on the cylinder body.

[0011] Preferably, the surface of the upper reinforcing plate is provided with guide screws, and the four corners of the surface of the moving push plate are provided with limiting grooves for the guide screws to pass through.

[0012] Preferably, the surface of the moving push plate is connected with limit posts at equal intervals, and the surface of the moving push plate is connected with limit plates at equal intervals.

[0013] Preferably, the upper fixing frame and the lower mold side are respectively provided with hydraulic cylinders, and the output end of the hydraulic cylinder is connected to the surface of the lower mold, and one end of the hydraulic cylinder is connected to the surface of the upper fixing frame.

[0014] Preferably, the upper pressure plate is provided with upper guide sleeves at the four corners of its surface, and the lower surface of the lower mold is provided with guide posts for matching and guiding the upper guide sleeves.

[0015] Preferably, the base has guide portions on its sides and the upper fixing frame has handles for opening.

[0016] Preferably, the surfaces of the lower mold and the upper fixing frame are provided with a sponge for sealing.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] (1) With clear division of labor and close cooperation among the components in the mechanism, when the electromagnet in the hook drive module is energized, it can accurately drive the hook column to move along the guide of the concave frame. The mounting groove on the surface of the concave frame can accurately accommodate the hook seat. After the hook column passes through the concave frame, it can form a tight engagement with the hook seat. This four-corner symmetrical hook fixing method greatly improves the fixing strength between the upper fixing frame and the lower mold when the mold is closed, effectively avoiding the loosening or displacement problems that are easy to occur when the mold is closed.

[0019] (2) When the push plate of the cylinder-driven module slides, the guide screws on the surface of the upper reinforcing plate pass through the limit grooves at the four corners of the moving push plate, which strictly constrains the movement trajectory of the moving push plate, preventing it from deviating during movement, ensuring the straightness and stability of the drive. The sensing sensor can monitor the working status of the cylinder body and the position information of the moving push plate in real time, and can promptly provide feedback on whether the stroke is in place, making it convenient for operators or control systems to accurately control the operating status of the mechanism, reducing detection errors or equipment failures caused by excessive or insufficient drive.

[0020] (3) The sponge on the surface of the lower mold and the upper fixed frame can fill the gap between the mold closing, which not only enhances the sealing of the mechanism and prevents external dust and impurities from entering and affecting the detection accuracy of the components, but also plays a buffering role in the mold closing process, reducing the hard collision damage between the components.

[0021] (4) Through the dual-stroke design, only the long needle contacts the PCBA for testing in the second stroke, avoiding the interference caused by the short needle acting as an antenna, ensuring the stability and accuracy of the test signal, improving the reliability of the test, and avoiding the occurrence of missed tests. Attached Figure Description

[0022] Figure 1 This is a first-view structural schematic diagram of the present invention;

[0023] Figure 2 This is a structural schematic diagram of the present invention from a second perspective;

[0024] Figure 3 This is a structural schematic diagram of the present invention from a third-view perspective;

[0025] Figure 4 This is a structural schematic diagram of the present invention from a fourth perspective;

[0026] Figure 5 This is a schematic diagram of the structure of the cylinder drive module of this utility model;

[0027] Figure 6 This is a schematic diagram of the hook drive module of this utility model;

[0028] Figure 7 This is a schematic diagram of the hook drive module of this utility model when it is working.

[0029] In the diagram: 1. Base; 2. Lower mold; 3. Guide post; 4. Hook seat; 5. Components; 6. Hydraulic cylinder; 7. Hook drive module; 72. Electromagnet; 73. Hook post; 74. Electromagnet fixing seat; 75. Concave frame; 76. Mounting slot; 8. Cylinder drive module; 81. Cylinder fixing seat; 82. Cylinder body; 83. Sensor; 84. Upper reinforcing plate; 85. Guide screw; 86. Motion push plate; 87. Limiting piece; 88. Limiting post; 89. Limiting groove; 9. Sponge; 10. Upper pressure plate; 11. Upper guide sleeve; 12. Upper fixing frame; 13. Handle; 14. Guide part. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed", "equipped with", "sleeved with", "connected", etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0032] Please see Figure 1-7 This utility model provides a technical solution: an ICT dual-stroke mechanism, including a base 1. The base 1 serves as the basic support component of the entire mechanism, and is stably installed on the processing table, providing a solid bearing platform for all components above. The lower mold 2 installed on the base 1 is the core bearing area of ​​the components. Its back is rotatably connected to the upper fixed frame 12, mainly through a pin passing through the lower mold 2 and the upper fixed frame 12, which facilitates the rotation of the upper fixed frame 12 on the back of the lower mold 2. This rotational structure provides basic rotational support for the mold closing action of the mechanism, enabling the upper fixed frame 12 to open and close around the connection point, facilitating the picking, placing and testing of components.

[0033] The upper pressure plate 10 is located inside the upper fixed frame 12. When the mold is closed, it can apply stable pressure to the component 5 to be tested placed on the inner surface of the lower mold 2, ensuring that the position of the component does not shift during the testing process. The inner surface of the lower mold 2 serves as the direct placement area for the component, providing a precise positioning reference for the component 5 and ensuring the accuracy of the test.

[0034] The hook drive modules 7 and hook seats 4, positioned at the four corners, constitute the core fixing device after the mechanism is closed, achieving a stable lock between the upper fixing frame 12 and the lower mold 2. When the upper fixing frame 12 is closed, the electromagnet fixing seat 74 connected to the inner side of the upper fixing frame 12 moves upward, so that the mounting groove 76 on the surface of the concave frame 75 precisely aligns with the hook seat 4 on the surface of the lower mold 2. At this time, the electromagnet 72 is activated to drive the hook column 73 to extend. The hook column 73 passes through the concave frame 75 and forms a mechanical lock with the hook seat 4. Through the four sets of symmetrically distributed hook drive modules 7, the upper fixing frame 12 and the lower mold 2 are firmly fixed from the four corners, preventing loosening during the testing process. The electromagnet fixing seat 74 provides a stable mounting base for the electromagnet 72, while the concave frame 75 achieves initial positioning with the hook seat 4 through the mounting groove 76, ensuring the accuracy of the locking of the hook column 73.

[0035] The cylinder drive module 8, located between the four sets of hook drive modules 7, is a key component for realizing the detection stroke drive, providing precise power output and motion control for component detection. The upper reinforcing plate 84, fixed to the upper fixed frame 12, enhances the overall structural strength of the cylinder drive module 8. The cylinder fixing seat 81 securely fixes the cylinder body 82 to the surface of the upper reinforcing plate 84 with bolts, ensuring stability during the cylinder drive process. The cylinder body 82 serves as the power source, driving the motion push plate 86 to slide along the surface of the upper reinforcing plate 84. The limiting posts 88 and limiting pieces 87 on the surface of the motion push plate 86 can perform precise pressing or positioning operations on the components according to the detection requirements. The sensing sensor 83 monitors the movement status of the cylinder body 82 in real time, providing precise position feedback to the control system and ensuring the stroke control accuracy of the motion push plate 86. The guide screw 85 passes through the limiting grooves 89 at the four corners of the motion push plate 86, playing a guiding and limiting role during the sliding process of the motion push plate 86, preventing it from deviating and ensuring the straightness of the movement trajectory.

[0036] The hydraulic cylinder 6, which connects the upper fixed frame 12 to the side of the lower mold 2, is the power device for realizing the opening and closing action of the mechanism. Through the extension and retraction of the output end of the hydraulic cylinder 6, the upper fixed frame 12 is driven to open and close smoothly around the rotation connection point with the lower mold 2, providing sufficient power and stable control for the mold closing and opening process.

[0037] The upper guide sleeves 11 at the four corners of the upper pressure plate 10 and the guide posts 3 on the lower surface of the lower mold 2 form a guiding and positioning structure. During the mold closing process, the guide posts 3 are precisely inserted into the upper guide sleeves 11 to ensure that the upper fixed frame 12 and the lower mold 2 are precisely aligned in the closed position, avoiding damage to components or detection errors due to misalignment.

[0038] The guide part 14 on the side of the base 1 plays an auxiliary guiding role in the opening and closing of the mechanism, further improving the accuracy of mold closing. The handle 13 on the surface of the upper fixed frame 12 makes it easy for operators to manually open the upper fixed frame 12 in equipment debugging or emergency situations, improving the convenience of equipment operation. The sponge 9 on the surface of the lower mold 2 and the upper fixed frame 12 forms a sealed structure after mold closing, which can effectively block external dust and impurities from entering the detection area. At the same time, it plays a buffering role at the moment of mold closing, reducing mechanical impact damage to components and equipment.

[0039] Specifically, during use, the entire mechanism is in standby mode. The sensing sensor 83 senses that the cylinder body 82 is in the closed state, and all components are in the initial position, waiting for the test to begin. At this time, the upper fixed frame 12 and the lower mold 2 are in a specific relative position, ready for the subsequent placement of PCBA (component 5).

[0040] Place the PCBA (component 5) into the mold. Place the PCBA (component 5) to be tested on the inner surface of the lower mold 2 at component 5. Ensure that the PCBA (component 5) is accurately positioned to prepare for subsequent test probe contact. First vacuuming: Start the vacuuming operation. Under atmospheric pressure, the upper fixed frame 12 drives the upper pressure plate 10 to move downward, so that both long and short test probes contact the PCBA (component 5). At this time, all test probes can make good contact with the test points on the PCBA (component 5), so that the PCBA (component 5) can be fully tested, covering all the items that need to be tested.

[0041] Vacuum release after the first test: After the first test is completed, the vacuuming operation is stopped, i.e., the vacuum is released. The upper fixed frame 12 and the upper pressure plate 10 are slightly lifted under the action of the relevant components, the test probe is separated from the PCBA, and the cylinder drive module works: The 24V solenoid valve is powered on, the cylinder body 82 starts to work, pushing the motion push plate 86 to slide along the surface of the upper reinforcing plate 84. During the sliding of the motion push plate 86, the guide screw 85 moves in the limit groove 89, which plays a guiding and limiting role, ensuring that the motion push plate 86 moves accurately to the designated position according to the predetermined trajectory. At this time, the sensing sensor 83 senses the cylinder body 82 changing from the closed state to the open state. At the same time, the limit plate 87 and the limit post 88 can ensure that the motion push plate 86 will not have excessive displacement or deviation during the movement, ensuring the stability of the mechanism operation.

[0042] Second vacuum suction: The vacuum suction operation is restarted. The upper fixed frame 12 and the upper pressure plate 10 move downward again, so that the test probe contacts the PCBA again. However, the contact state at this time is to prepare for the subsequent operation of the hook drive module. Hook drive module operation: A voltage and current of 24V / 2A are applied to the electromagnet 72. The electromagnet 72 generates magnetic force, attracting the hook post 73 to move, so that the hook is closed. The hook post 73 passes through the concave frame 75. The mounting groove 76 on the surface of the concave frame 75 cooperates with the hook seat 4 to form a fixation, ensuring that the hook can be stably in the closed state.

[0043] Second vacuum test of the long needle section: After vacuuming, under the action of the relevant mechanism, the hook drives the upper pressure plate 10 and other components to rise to the top position. At this time, only the long needle can contact the PCBA, so that the test part corresponding to the long needle can be specially tested. Vacuuming after the second test: After the long needle section test is completed, vacuuming is performed again, and the upper pressure plate 10 and other components move downward to prepare for the hook to detach.

[0044] Hook disengagement: A 24V / 2A voltage and current are applied to the electromagnet 72 in the opposite direction, changing the direction of the magnetic force of the electromagnet 72 and causing the hook column 73 to move in the opposite direction, thus disengaging the hook from the hook seat 4. Third vacuum release and cylinder reset: After vacuum release, the positions of components such as the upper fixed frame 12 and the upper pressure plate 10 are adjusted. At the same time, the lower 24V solenoid valve is energized, the cylinder body 82 stops working, the moving push plate 86 resets under the action of the relevant force, the cylinder body 82 sensing sensor 83 returns to the closed state, all components return to the initial position, the entire test process is completed, and the mechanism awaits the next test task.

[0045] Throughout the entire operation, the hydraulic cylinder 6 can assist the rotation and mold closing action of the upper fixed frame 12 when needed, making the opening and closing between the upper fixed frame 12 and the lower mold 2 more stable and reliable. The upper guide sleeve 11 and the guide post 3 cooperate with each other to guide the upper and lower molds during mold closing and opening, ensuring precise alignment between the upper and lower molds and improving the accuracy of the test. The sponge 9 on the surface of the lower mold 2 and the upper fixed frame 12 plays a sealing role, ensuring the effectiveness of the vacuum suction and release process, and also plays a buffering and protection role during mold closing, avoiding damage to the PCBA and test probes. The guide part 14 on the side of the base 1 provides guidance and positioning during the entire installation and operation of the mechanism, ensuring the accuracy of the mechanism installation and the stability of the operation. The handle 13 on the surface of the upper fixed frame 12 facilitates the operator to open and operate the mechanism, improving the convenience of operation.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An ICT dual-stroke mechanism, characterized in that, include: A base (1) is used to be installed on a processing table. A lower mold (2) is provided on the base (1). The back of the lower mold (2) is rotatably connected to an upper fixing frame (12) for mold closing. The upper pressure plate (10) is located inside the upper fixed frame (12), and the inner surface of the lower mold (2) is provided with components (5) for testing; The hook drive module (7) is located at the four corners of the surface of the upper pressure plate (10). The four corners of the surface of the lower mold (2) are provided with hook seats (4) for fixing the hook drive module (7). The hook drive module (7) includes an electromagnet fixing seat (74) connected to the inner side of the upper fixing frame (12). The surface of the electromagnet fixing seat (74) is provided with an electromagnet (72) for driving. One end of the electromagnet (72) is connected with a hook post (73). The surface of the electromagnet fixing seat (74) is provided with a concave frame (75) on one side of the electromagnet (72). The surface of the concave frame (75) is provided with an installation groove (76) for installing the hook seat (4). The hook post (73) passes through the concave frame (75) to form a fixation.

2. The ICT dual-stroke mechanism according to claim 1, characterized in that, The surface of the upper pressure plate (10) is provided with a cylinder drive module (8) between the four sets of hook drive modules (7). The cylinder drive module (8) includes an upper reinforcing plate (84) for fixing to the upper fixed frame (12). The surface of the upper reinforcing plate (84) is provided with a cylinder fixing seat (81) fixed by bolts. The side of the upper reinforcing plate (84) is provided with a cylinder body (82) for driving. The surface of the upper reinforcing plate (84) is slidably connected with a motion push plate (86). The surface of the upper reinforcing plate (84) is provided with a sensing sensor (83) located on the cylinder body (82).

3. The ICT dual-stroke mechanism according to claim 2, characterized in that, The surface of the upper reinforcing plate (84) is provided with guide screws (85), and the four corners of the surface of the moving push plate (86) are provided with limiting grooves (89) for passing through the guide screws (85).

4. The ICT dual-stroke mechanism according to claim 2, characterized in that, The surface of the moving push plate (86) is connected with limit posts (88) at equal intervals, and the surface of the moving push plate (86) is connected with limit plates (87) at equal intervals.

5. The ICT dual-stroke mechanism according to claim 1, characterized in that, The upper fixed frame (12) and the lower mold (2) are respectively provided with hydraulic cylinders (6), and the output end of the hydraulic cylinder (6) is connected to the surface of the lower mold (2), and one end of the hydraulic cylinder (6) is connected to the surface of the upper fixed frame (12).

6. The ICT dual-stroke mechanism according to claim 1, characterized in that, The upper pressure plate (10) is provided with upper guide sleeves (11) at the four corners of its surface, and the lower surface of the lower mold (2) is provided with guide posts (3) for matching and guiding the upper guide sleeves (11).

7. The ICT dual-stroke mechanism according to claim 1, characterized in that, The base (1) is provided with guide parts (14) on its side, and the surface of the upper fixing frame (12) is provided with handles (13) for opening.

8. The ICT dual-stroke mechanism according to claim 1, characterized in that, The surfaces of the lower mold (2) and the upper fixing frame (12) are provided with a sponge (9) for sealing.

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