Double-stamping mechanism and PCB (Printed Circuit Board) electrical testing machine

Abstract

The utility model provides a double-stamping mechanism, and belongs to the technical field of automatic detection, the double-stamping mechanism comprises a stamping assembly and further comprises a linkage assembly, and the stamping assembly is arranged on the linkage assembly and located on one side of the linkage assembly. According to the mechanism, the multiple stamping assemblies are installed on the linkage assembly, the multiple stamping assemblies are distributed on one side of the PCB through the linkage assembly, and then the power source and the controller are connected to achieve the effect of simultaneous stamping or independent stamping. The distance between the stamping assemblies on the linkage assembly can be adjusted, and the positions of the stamping assemblies can be adjusted along with movement of the linkage assembly, so that the relative positions of the stamping assemblies and the PCBs can be kept consistent, namely, the stamping positions are kept consistent, the standardization of the stamping positions is guaranteed, and later recognition is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of automatic detection technology, and in particular to a double stamping mechanism. Background Technology

[0002] In PCB manufacturing, before shipment, PCB boards need to be cut into shipping unit sizes (SETs) and tested to check their quality. Qualified products are marked with a "qualified" label to distinguish them from other products and avoid confusion. Current marking mechanisms are mainly single-stamp mechanisms, meaning that the testing equipment can only test and mark one SET at a time. However, to improve efficiency, the PCB industry now uses multiple SETs for simultaneous testing. The existing single-stamp mechanism cannot simultaneously match and stamp multiple SETs, greatly limiting the testing efficiency of the equipment. Utility Model Content

[0003] This utility model addresses the shortcomings of existing technologies by providing a dual-stamping mechanism. It uses a linkage component to connect multiple stamping components, and can adjust the overall position of the mechanism on the electrical testing machine as well as the spacing between the multiple stamping components, thereby enabling simultaneous stamping of multiple PCB boards.

[0004] This utility model provides a double stamping mechanism, including a stamping component and a linkage component. The stamping component is disposed on the linkage component and located on one side of the linkage component.

[0005] Multiple stamping components can be installed on the aforementioned linkage assembly, linking them together. The entire mechanism can be mounted on an electrical testing machine. By adjusting the linkage assembly, the stamping components can be aligned with the PCB board in their respective areas, enabling multi-board stamping and thus improving testing efficiency. When using multiple control lines to connect the stamping components, each stamping component can be stamped independently, enhancing the applicability of this mechanism to various sizes of electrical testing machines.

[0006] In a preferred embodiment of this invention, the linkage component includes a movable base and a movable rod, wherein the movable base is movably mounted on the movable rod; and the stamping component is mounted on the movable base.

[0007] The movable rod can be installed in the electrical testing machine via a snap-fit ​​mechanism. The movable base is slidably connected to the movable rod and is located on one side of the movable rod, used to position it close to the stamping area on the electrical testing machine. The stamping component can be installed at an appropriate spacing according to the distance to the PCB board and is mounted on the top of the movable base. After the movable rod is fixed, the stamping component can be quickly positioned on the stamping area by sliding the movable base, enabling rapid adjustment.

[0008] In a preferred embodiment of this invention, a locking slider and an adjusting slider are slidably connected to the movable base, and the stamping assembly is detachably connected to the adjusting slider and the locking slider.

[0009] The movable base is equipped with a guide rail. The locking slider and the adjusting slider are slidably connected to both sides of the guide rail. The locking slider first slides and positions the stamping component connected to it so that the stamping component is aligned with the stamping position on the PCB board. Then, the locking slider is locked to the guide rail using the locking rod. The adjusting slider can then be adjusted and locked to the guide rail using the same operation to achieve the effect of fixing the position of the stamping component.

[0010] In a preferred embodiment of this invention, a linkage ruler is fixed on the locking slider, and a locking component is provided on the adjusting slider. The adjusting slider is detachably connected to the linkage ruler through the locking component.

[0011] One end of the linkage ruler is fixedly connected to the locking slider, and the linkage ruler is marked with graduations. By adjusting the slider and using the locking mechanism to align with the graduations on the linkage ruler, the distance between the slider and the locking slider can be accurately adjusted according to the width and spacing of the PCB board in the stamping area. This ensures that the stamping assembly is aligned with the same stamping position on the PCB board, making the adjustment quick and convenient. This allows for rapid adjustment on electrical testing machines of different specifications to meet stamping requirements.

[0012] In a preferred embodiment of this invention, the locking slider and the adjusting slider are provided with guide rails, and the stamping assembly is slidably connected to the guide rails.

[0013] Both the locking slider and the adjusting slider are equipped with guide rails, which allow the stamping component to be adjusted by sliding to control the distance between the stamping component and the PCB board. This allows for adaptation and adjustment of the mechanism on different specifications of electrical testing machines, improving its practicality.

[0014] In a preferred embodiment of this utility model, both ends of the movable rod are provided with connectors having connection holes. A locking rod is threaded to one side of the connector, and one end of the locking rod passes through the side of the connector and is connected to the connection hole.

[0015] A connecting hole penetrates the center of one side of the connector, providing a passage for mounting components on the electrical testing machine. Connectors are installed at both ends of the moving rod, ensuring stable installation of the mechanism within the electrical testing machine. Additionally, a locking rod is threaded onto one side of the connector parallel to the direction of the connecting hole. One end of the locking rod passes through this side and is connected to the connector, with the through-hole connecting the connecting hole to the outside. The other end serves as a rotatable handle. By rotating the handle, the operator depresses the locking rod deeper into the connector, bringing it tightly against the mounting component inserted in the connecting hole. The force generated by this contact causes the inner wall of the connecting hole to adhere to the mounting component, creating significant friction and preventing movement of the connector within the electrical testing machine. This prevents the stamping assembly from colliding with the electrical testing machine, ensuring the safety of both the mechanism and the electrical testing machine.

[0016] In a preferred embodiment of this invention, the stamping assembly includes a cylinder, a stamp holder fixed to the output end of the cylinder, and a stamp fixed to one side of the stamp holder. The bottom surface of the cylinder is connected to the locking slider and the adjusting slider.

[0017] The stamp holder provides a mounting position to fix the stamp and connect to the cylinder, making the stamp installation convenient. The bottom surface of the cylinder can be slidably connected to the locking slider and the adjusting slider or can be detachably connected to achieve the adjustment function or facilitate disassembly and assembly.

[0018] Specific implementation process: Workers install the mechanism into the electrical testing machine using a movable rod and lock it with a locking lever. The stamping assembly is then adjusted to face the stamping area using a movable base. Based on the PCB width and the distance between multiple boards to be stamped, the distance between the locking slider and the adjusting slider is adjusted according to the scale of the linkage ruler. The position of the locking slider is fixed, and locking devices are used to restrict the movement of the adjusting slider, preventing stamping position deviation. Finally, after connecting the cylinder to the control circuit, identification stamps can be applied to multiple PCB boards simultaneously.

[0019] The second objective is to provide a PCB electrical testing machine, including the double stamping mechanism described in any of the above-mentioned items.

[0020] The electrical testing machine has multiple material platforms with different functions. The mechanism can be mounted on one side of the corresponding material platform by passing through the connecting holes on the mounting rods on both sides. Thus, the stamping mechanism can stamp a qualified stamp on one side of the PCB board according to the predetermined stamping position, and can stamp two or more PCB boards at the same time.

[0021] In a preferred embodiment of this invention, the invention includes a main body, a suction cup holder movably mounted on the main body, and several sets of magnetic suction nozzles. One end of each magnetic suction nozzle is fixed to the bottom surface of the suction cup holder, and each magnetic suction nozzle is equipped with a solenoid valve. Several controllers are provided in the main body, and each set of solenoid valves is electrically connected to one of the controllers.

[0022] The electrical testing machine is equipped with a conveying device, and a suction cup holder is mounted on the conveying device for movement. The magnetic suction nozzles are divided into multiple groups, each group corresponding to one PCB board. Through the cooperation of the magnetic suction nozzles and the suction cup holder, the PCB boards can be smoothly transported across multiple material tables. The solenoid valve in each group of magnetic suction nozzles is electrically connected to a separate controller, allowing multiple controllers to control different groups of magnetic suction nozzles to pick up PCBs, thereby transporting qualified and unqualified boards from a single test to different material tables for categorized placement.

[0023] In a preferred embodiment of this invention, a testing module is provided in the main body.

[0024] The testing module can analyze each PCS (Printed Circuit Board) on the PCB board individually and generate a corresponding test report. When a PCB board fails the test, it helps staff locate the problem and adjust the production parameters in the relevant processes in a timely manner. PCS refers to the smallest unit of a circuit board; each SET (Set of Circuit Boards) may be composed of multiple PCS panels.

[0025] The beneficial effects of this application include at least the following:

[0026] This application provides a dual-stamping mechanism, which employs multiple stamping components mounted on a linkage component. These components are distributed along one side of a PCB board via the linkage component, and then connected to a power supply and controller to achieve simultaneous or individual stamping. When the linkage component is mounted on an electrical testing machine, the spacing between the multiple stamping components on the linkage component can be adjusted, and their positions can be adjusted as the linkage component moves. This ensures that each stamping component maintains a consistent relative position with each PCB board, guaranteeing consistent stamping placement and facilitating subsequent identification.

[0027] This application also provides a PCB electrical testing machine with the aforementioned dual stamping mechanism, which can stamp one or more PCB boards according to production needs, breaking the constraints of the existing single stamping mechanism on testing time and effectively shortening the testing time. Attached Figure Description

[0028] Figure 1 This is a three-dimensional schematic diagram of the dual-stamping mechanism provided in this application;

[0029] Figure 2 This is a three-dimensional schematic diagram of the PCB electrical testing machine provided in Embodiment 3 of this application;

[0030] Figure 3 This is a schematic diagram of the PCB electrical testing machine provided in Embodiment 3 of this application.

[0031] Figure label:

[0032] 1. Stamping assembly; 11. Cylinder; 12. Stamp holder; 13. Stamp;

[0033] 2. Linkage components; 21. Movable base; 22. Movable lever;

[0034] 3. Locking slider; 31. Linkage ruler;

[0035] 4. Adjusting slider; 41. Locking component;

[0036] 5. Guide rail;

[0037] 6. Connecting component; 61. Connecting hole; 62. Locking rod;

[0038] 7. Main body; 8. Suction cup holder; 9. Magnetic suction nozzle. Detailed Implementation

[0039] Preferred embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art.

[0040] In the description of this utility model, the terms "upper", "lower", "left" and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not require that this utility model must be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0041] Example 1

[0042] See Figure 1 As shown, this application provides a dual stamping mechanism, including a stamping component 1 and a linkage component 2. The stamping component 1 is disposed on the linkage component 2 and is located on one side of the linkage component 2.

[0043] Specifically, the linkage component 2 can be configured as a movable and modular worktable. Multiple stamping components 1 can be installed on the linkage component 2, allowing the entire mechanism to be mounted on the electrical testing machine. The relative positions of the multiple stamping components 1 can be fixed by modularity, and they can be moved as a whole. Multiple stamping components 1 working together can stamp multiple PCB boards at once. Operators can adjust the linkage component 2, such as increasing the spacing between the blank worktables between the stamping components 1 or decreasing the number of blank worktables, to align the stamping components 1 with the PCB boards in the corresponding areas, achieving multi-board stamping and improving testing efficiency. Alternatively, when using multiple control lines, each stamping component 1 can stamp independently, applicable to situations where the testing time of the multi-board electrical testing machine varies, allowing for matching corresponding stamping time periods and achieving multi-purpose functionality.

[0044] Furthermore, the linkage component 2 includes a movable base 21 and a movable rod 22, with the movable base 21 movably mounted on the movable rod 22; the stamping component 1 is mounted on the movable base 21.

[0045] Specifically, the movable rod 22 can be installed in the electrical testing machine through snap-fit, threaded connection, bolt connection, etc. The movable base 21 is slidably connected to the movable rod 22 by means of a ring structure and is located on one side of the movable rod 22 for placement near the stamping area on the electrical testing machine. In addition, a locking knob can be provided on the ring structure of the movable base 21 to lock it when the movable base 21 is in the correct position to prevent errors caused by movement. The stamping component 1 can be installed on the top of the movable base 21 at an appropriate spacing according to the distance from the PCB board. After the movable rod 22 is fixed, the stamping component 1 can be quickly positioned on the stamping area by sliding the movable base 21, which can achieve a quick adjustment function.

[0046] Furthermore, both ends of the movable rod 22 are provided with connectors 6 having connection holes 61. A locking rod 62 is threadedly connected to one side of the connector 6. One end of the locking rod 62 passes through the side of the connector 6 and is connected to the connection hole 61.

[0047] Specifically, the connecting hole 61 passes through the connector 6 with the center of one side of the connector 6 as its axis, providing a passage for the mounting components on the electrical testing machine to be installed. Both ends of the moving rod 22 are fitted with connectors 6, allowing the mechanism to be stably installed in the electrical testing machine. Additionally, the connector 6 has a threaded hole on one side parallel to the through direction of the connecting hole 61, connecting the connecting hole 61 to the outside. An L-shaped locking rod 62 is inserted into the threaded hole. One end of the locking rod 62 has an external thread, passing through the threaded hole and thus threadedly connected to the connector 6. The other end serves as a handle that can be rotated by the operator. The operator rotates the handle to insert the locking rod 62 into the connector 6, where it tightly abuts against the mounting component that passes through the connecting hole 61. This causes the inner wall of the connecting hole 61 to adhere to the mounting component under the force generated by the abutment, creating a large frictional force on the contact surface. This prevents the connector 6 from moving within the electrical testing machine, thus avoiding collisions between the stamping assembly 1 and components such as the material platform on the electrical testing machine, ensuring the safety of the mechanism and the electrical testing machine.

[0048] Furthermore, the stamping assembly 1 includes a cylinder 11, a stamp 13 seat 12 fixed to the output end of the cylinder 11, and a stamp 13 fixed to one side of the stamp 13 seat 12. The bottom surface of the cylinder 11 is connected to the movable seat 21.

[0049] Specifically, the stamp holder 12 provides an mounting position to fix the stamp 13 and provide support for it, making installation convenient. It also connects to the cylinder 11 to transmit driving force. Common PCB electrical testing machines use a nozzle lifting mechanism to control the PCB board. When the stamp 13 is applied, it presses onto the PCB board. The PCB board is then released and falls onto the worktable. At this time, the nozzle presses down, and since there is no PCB board obstructing the flow, the stamp 13 extends into the stamping area under the drive of the cylinder 11. This places the stamp 13 below the nozzle and other components, causing pressure on its sides. Therefore, the stamp holder 12 can be made of urethane rubber, utilizing its elasticity to allow the stamp 13 to descend under pressure and recover when the nozzle rises, thus relieving pressure on the stamp 13 and protecting it. The movable base 21 can be provided with multiple mounting slots in the extension direction of the stamp 13 to engage with the bottom of the cylinder 11. The position of the cylinder 11 can be adjusted according to the size of the PCB board to change the position of the stamp 13, so that the stamping position of the PCB board is always kept within the extension distance of the stamp 13, thus realizing the adjustment function. Alternatively, it can be provided with a mounting protrusion on the bottom edge for detachable connection, which is convenient for disassembly and replacement.

[0050] Example 2

[0051] See Figure 1 As shown, this embodiment provides a dual stamping mechanism, including a stamping component 1 and a linkage component 2. The stamping component 1 is disposed on the linkage component 2 and is located on one side of the linkage component 2.

[0052] Specifically, the linkage component 2 can be configured as a movable and modular worktable. Multiple stamping components 1 can be installed on the linkage component 2, allowing the entire mechanism to be mounted on the electrical testing machine. The relative positions of the multiple stamping components 1 can be fixed by modularity, and they can be moved as a whole. Multiple stamping components 1 working together can stamp multiple PCB boards at once. Operators can adjust the linkage component 2, such as increasing the spacing between the blank worktables between the stamping components 1 or decreasing the number of blank worktables, to align the stamping components 1 with the PCB boards in the corresponding areas, achieving multi-board stamping and improving testing efficiency. Alternatively, when using multiple control lines, each stamping component 1 can stamp independently, applicable to situations where the testing time of the multi-board electrical testing machine varies, allowing for matching corresponding stamping time periods and achieving multi-purpose functionality.

[0053] Furthermore, the linkage component 2 includes a movable base 21 and a movable rod 22, with the movable base 21 movably mounted on the movable rod 22; the stamping component 1 is mounted on the movable base 21.

[0054] Specifically, the movable rod 22 can be installed in the electrical testing machine through snap-fit, threaded connection, bolt connection, etc. The movable base 21 is slidably connected to the movable rod 22 by means of a ring structure and is located on one side of the movable rod 22 for placement near the stamping area on the electrical testing machine. In addition, a locking knob can be provided on the ring structure of the movable base 21 to lock it when the movable base 21 is in the correct position to prevent errors caused by movement. The stamping component 1 can be installed on the top of the movable base 21 at an appropriate spacing according to the distance from the PCB board. After the movable rod 22 is fixed, the stamping component 1 can be quickly positioned on the stamping area by sliding the movable base 21, which can achieve a quick adjustment function.

[0055] Furthermore, a locking slider 3 and an adjusting slider 4 are slidably connected on the movable base 21, and the stamping assembly 1 is detachably connected to the adjusting slider 4 and the locking slider 3.

[0056] Specifically, the movable base 21 is equipped with a guide rail 5 parallel to the movable rod 22. The locking slider 3 and the adjusting slider 4 are slidably connected to both sides of the guide rail 5, allowing the locking slider 3 and the adjusting slider 4 to move along the length of the movable rod 22. During use, the locking slider 3 first slides and positions the stamping component 1 connected to it, aligning the stamping component 1 with the stamping position on the PCB board. Then, the locking rod 62 temporarily fixes the locking slider 3 to the guide rail 5. The same operation can then be used to adjust and lock the adjusting slider 4 to the guide rail 5, achieving the effect of fixing the position of the stamping component 1. The locking slider 3 corresponds to the first PCB board, and the adjusting slider 4 uses the fixed locking slider 3 as a reference, using a measuring tool to set the distance between them, thus corresponding to the second PCB board, ensuring that the stamping components 1 on the corresponding sliders correspond to the same stamping position on the PCB board. In this way, the operator can adjust the mechanism promptly according to PCB boards of different sizes.

[0057] Furthermore, a linkage ruler 31 is fixed on the locking slider 3, and a locking element 41 is provided on the adjusting slider 4. The adjusting slider 4 is detachably connected to the linkage ruler 31 through the locking element 41.

[0058] Specifically, one end of the linkage ruler 31 is fixedly connected to the locking slider 3, and the linkage ruler 31 has an elongated opening along its length, with evenly distributed graduations on one side of the opening. A locking knob is threaded onto the adjusting slider 4, and this locking knob is inserted into the aforementioned opening. The adjustment process is as follows: loosen the locking knob so that it does not abut against the linkage ruler 31. At this time, the adjusting slider 4 can be moved together with the locking knob. Simultaneously, referring to the graduations on the linkage ruler 31, and based on the width and spacing of the PCB board in the stamping area, accurately adjust the distance between the adjusting slider 4 and the locking slider 3. Then, tighten the locking knob. In this way, the stamping components 1 on both can be aligned with the same stamping position on different PCB boards, allowing for quick and convenient adjustment, facilitating rapid adjustment on electrical testing machines of different specifications to meet stamping requirements.

[0059] Furthermore, the locking slider 3 and the adjusting slider 4 are provided with guide rails 5, and the stamping assembly 1 is slidably connected to the guide rails 5.

[0060] Specifically, both the locking slider 3 and the adjusting slider 4 are equipped with guide rails 5 parallel to the extension direction of the stamping component 1. Correspondingly, the stamping component 1 is equipped with a slider, so that the guide rail 5 can adjust the stamping component 1 in a sliding manner to control the distance between the stamping component 1 and the PCB board. This is used to adapt and adjust the mechanism for installation on different specifications of electrical testing machines, thereby improving its practicality.

[0061] Furthermore, the stamping assembly 1 includes a cylinder 11, a stamp 13 seat 12 fixed to the output end of the cylinder 11, and a stamp 13 fixed to one side of the stamp 13 seat 12. The bottom surface of the cylinder 11 is connected to the movable seat 21.

[0062] Specifically, the stamp holder 12 provides an mounting position to fix the stamp 13 and provide support for it, making installation convenient. It also connects to the cylinder 11 to transmit driving force. Common PCB electrical testing machines use a nozzle lifting mechanism to control the PCB board. When the stamp 13 is applied, it presses onto the PCB board. The PCB board is then released and falls onto the worktable. At this time, the nozzle presses down, and since there is no PCB board obstructing the flow, the stamp 13 extends into the stamping area under the drive of the cylinder 11. This places the stamp 13 below the nozzle and other components, causing pressure on its sides. Therefore, the stamp holder 12 can be made of urethane rubber, utilizing its elasticity to allow the stamp 13 to descend under pressure and recover when the nozzle rises, thus relieving pressure on the stamp 13 and protecting it. The movable base 21 can be provided with multiple mounting slots in the extension direction of the stamp 13 to engage with the bottom of the cylinder 11. The position of the cylinder 11 can be adjusted according to the size of the PCB board to change the position of the stamp 13, so that the stamping position of the PCB board is always kept within the extension distance of the stamp 13, thus realizing the adjustment function. Alternatively, it can be provided with a mounting protrusion on the bottom edge for detachable connection, which is convenient for disassembly and replacement.

[0063] Example 3

[0064] See Figures 1 to 3 As shown, this embodiment provides a PCB electrical testing machine, including any of the above-mentioned double stamping mechanisms.

[0065] Specifically, the electrical testing machine has multiple material platforms for testing, stamping, and sorting. The mechanism can be mounted on one side of the corresponding material platform by passing through the connecting holes 61 on the mounting rods on both sides, so that the protruding end of the stamping mechanism faces the stamping area. When the PCB board is transported to the stamping area after testing, the above-mentioned stamping mechanism can stamp a qualified stamp on one side of the PCB board according to the predetermined stamping position, and can stamp two or more PCB boards at the same time.

[0066] Furthermore, it includes a main body 7, a suction cup frame 8 movably mounted on the main body 7, and several sets of magnetic suction nozzles 9. One end of each magnetic suction nozzle 9 is fixed to the bottom surface of the suction cup frame 8, and each magnetic suction nozzle 9 is equipped with a solenoid valve. Several controllers are installed in the main body 7, and each set of solenoid valves is electrically connected to one controller.

[0067] Specifically, the electrical testing machine is equipped with a conveying device, such as a combination of a robotic arm and gears, drive belts, etc. The suction cup frame 8 is mounted on the robotic arm and can be raised and lowered, while the gears and drive belts enable translation. Magnetic suction nozzles 9 can be divided into two, three, or more groups, with each group containing four or five nozzles 9. These nozzles pick up PCBs from around the perimeter or center, securing them firmly to the nozzles 9. Each group of nozzles 9 picks up one PCB. Through the interaction of the nozzles 9 and the suction cup frame 8, the PCBs can be stably fixed and transported on multiple worktables. Each group of nozzles 9 has a solenoid valve electrically connected to a separate controller, allowing multiple controllers to control different groups of nozzles 9 for picking up PCBs. This enables the transport of qualified and unqualified boards from a single test to different worktables, achieving categorized placement.

[0068] Furthermore, a testing module is included in main body 7.

[0069] Specifically, the testing module can individually summarize and analyze the testing status of each PCS in the PCB board and generate corresponding test reports. When the PCB board fails the test, it helps staff quickly locate the problem, thereby enabling timely identification of the issue and adjustment of production parameters in relevant processes. Here, PCS refers to the smallest unit of a circuit board, and each SET (set of circuit boards) can be composed of multiple PCS panels.

[0070] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A dual-stamping mechanism, comprising a stamping component (1), characterized in that: It also includes a linkage component (2), the stamping component (1) is disposed on the linkage component (2) and located on one side of the linkage component (2); the linkage component (2) includes a movable seat (21) and a movable rod (22), the movable seat (21) is movably disposed on the movable rod (22); the stamping component (1) is installed on the movable seat (21); a locking slider (3) and an adjusting slider (4) are slidably connected on the movable seat (21), and the stamping component (1) is detachably connected to the adjusting slider (4) and the locking slider (3).

2. The double-stamping mechanism according to claim 1, characterized in that: A linkage ruler (31) is fixed on the locking slider (3), and a locking component (41) is provided on the adjusting slider (4). The adjusting slider (4) is detachably connected to the linkage ruler (31) through the locking component (41).

3. The double-stamping mechanism according to claim 1, characterized in that: The locking slider (3) and the adjusting slider (4) are provided with guide rails (5), and the stamping assembly (1) is slidably connected to the guide rails (5).

4. The double-stamping mechanism according to claim 1, characterized in that: Both ends of the movable rod (22) are provided with connectors (6) having connection holes (61). A locking rod (62) is connected to one side of the connector (6). One end of the locking rod (62) passes through the side of the connector (6) and is connected to the connection hole (61).

5. The double-stamping mechanism according to claim 1, characterized in that: The stamping assembly (1) includes a cylinder (11), a stamp (13) seat (12) fixed to the output end of the cylinder (11), and a stamp (13) fixed to one side of the stamp (13) seat (12). The bottom surface of the cylinder (11) is connected to the locking slider (3) and the adjusting slider (4).

6. A PCB electrical testing machine, characterized in that: Includes the double stamping mechanism as described in any one of claims 1-5.

7. The PCB electrical testing machine according to claim 6, characterized in that: It also includes a main body (7), a suction cup holder (8) movably disposed on the main body (7), and several sets of magnetic suction nozzles (9). One end of each magnetic suction nozzle (9) is fixed to the bottom surface of the suction cup holder (8), and each magnetic suction nozzle (9) is provided with an electromagnetic valve. Several controllers are provided in the main body (7), and each set of electromagnetic valves is electrically connected to one of the controllers.

8. The PCB electrical testing machine according to claim 7, characterized in that: The main body (7) is equipped with a test module.

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