A positioning structure-based integrated circuit board rotation testing device and method thereof

Abstract

The application relates to a positioning structure-based integrated circuit board rotation testing device and a method thereof, which comprises a base, a rotatable mounting plate arranged on the base, a positioning structure arranged on the mounting plate, the positioning structure comprising a longitudinal clamping assembly and a transverse pushing assembly, the longitudinal clamping assembly and the transverse pushing assembly being matched to position and fix the circuit board placed on the mounting plate, a triangular piece slidingly arranged on the longitudinal clamping assembly, the triangular piece being connected with an elastic structure arranged on the longitudinal clamping assembly, the triangular piece being able to ascend along the spatial vertical direction when the triangular piece abuts against the side wall of the circuit board, and a power mechanism connected with the triangular piece, the power mechanism comprising a power assembly, a rotating assembly and two sets of centrifugal assemblies, the centrifugal assemblies being able to drive the triangular piece to move downwards, and the power assembly being able to drive the centrifugal assemblies and the rotating assembly to act in sequence when the power assembly acts, so that the circuit board is prevented from being dislocated or falling off when the circuit board rotates.

Description

Technical Field

[0001] This invention relates to the field of integrated circuit board testing, specifically to an integrated circuit board rotation testing device and method based on a positioning structure. Background Technology

[0002] In the quality inspection of integrated circuit boards, there is a performance testing process, which involves conducting a full-load test on the integrated circuit board under power-on conditions. After the test is completed, manual inspection is required in conjunction with machine inspection. The purpose of manual inspection is to observe whether there is any burning of components on the circuit board, while machine inspection is to detect the temperature of the component surface to check whether the component temperature is within a controllable temperature range.

[0003] Since the scope of manual and machine quality inspection is limited, in order to improve the detection accuracy and avoid false detections and missed detections, a two-stage detection method is generally used for a single circuit board. That is, only half of the circuit board is detected at a time. By combining manual and machine methods, the detection accuracy can be improved while maintaining the same speed.

[0004] This testing method requires the circuit board to be rotated 180° after a single test. However, due to the high speed of rotation and the components on the circuit board causing the center of gravity of the circuit board to be off-center during rotation, the circuit board may shift or become misaligned during rotation, or even separate from the testing equipment, posing a significant risk of accidents. Summary of the Invention

[0005] The purpose of this invention is to provide an integrated circuit board rotation testing device and method based on a positioning structure to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An integrated circuit board rotation testing device based on a positioning structure includes:

[0008] A base, on which a rotatable mounting plate is provided;

[0009] A positioning structure is provided on the mounting plate. The positioning structure includes a longitudinal clamping component and a transverse pushing component. The longitudinal clamping component and the transverse pushing component cooperate to position and fix the circuit board placed on the mounting plate.

[0010] A triangular piece is slidably disposed on the longitudinal clamping assembly. The triangular piece is connected to an elastic structure disposed on the longitudinal clamping assembly. When the triangular piece abuts against the side wall of the circuit board, the triangular piece can rise vertically in space.

[0011] A power mechanism is connected to the triangular member. The power mechanism includes a power component, a rotating component, and two sets of centrifugal components. The centrifugal components can drive the triangular member to move downward. When the power component is activated, the power component can drive the centrifugal components and the rotating components to move sequentially.

[0012] As a further embodiment of the present invention: the longitudinal clamping assembly includes two bidirectional lead screws rotatably mounted on the mounting plate, the two bidirectional lead screws are connected by a No. 1 belt, and each bidirectional lead screw is symmetrically provided with two threaded sleeves that are threadedly connected to it, the threaded sleeves being connected to the centrifugal assembly;

[0013] The mounting plate is provided with multiple sets of first slide grooves, and a first slider is slidably installed in the first slide groove. A clamping component is installed on the first slider, and the first slider is connected to the threaded sleeve.

[0014] As a further embodiment of the present invention: the lateral pushing component includes side plates symmetrically installed on both sides of the clamping member, and a protrusion is fixed at the end of the side plate away from the clamping member;

[0015] The lateral pushing component also includes a guide groove formed on the mounting plate, a pushing plate slidably installed in the guide groove, a pushing member installed on the pushing plate, and sliding grooves symmetrically arranged on both sides of the pushing member, and the protrusion can slide in the sliding groove.

[0016] The sliding groove includes a horizontal groove and an inclined groove, with the horizontal groove and the inclined groove smoothly transitioning.

[0017] As a further embodiment of the present invention: the elastic structure includes a vertical rod fixedly mounted on the clamping member, the vertical rod being slidably connected to a protrusion provided on the triangular member, and a spring being sleeved on the vertical rod, one end of the spring being connected to the end of the vertical rod, and the other end being connected to the protrusion.

[0018] As a further embodiment of the present invention: the power assembly includes a drive device fixedly mounted on the base, the output shaft of the drive device passes through the base and is connected to a first gear, the first gear meshes with a gear ring disposed on the base, the outer circumferential surface of the gear ring is provided with an external groove, and the external groove is slidably connected to a plurality of stop members disposed circumferentially and at equal intervals on the base.

[0019] The power assembly also includes a telescopic transmission structure that connects the output shaft of the drive device and the centrifugal assembly.

[0020] As a further embodiment of the present invention: the telescopic transmission structure includes a second gear rotatably mounted on the mounting plate, the second gear meshing with the gear ring, and a first connecting rod rotatably mounted on the shaft of the second gear, the end of the first connecting rod away from the second gear being rotatably mounted with the second connecting rod, and the second connecting rod being connected to the centrifugal assembly;

[0021] Two coaxial pulleys are rotatably mounted at the rotatable connection between the first connecting rod and the second connecting rod. One of the pulleys is connected to the shaft of the second gear via the third belt, and the other pulley is connected to the centrifugal assembly via the fourth belt.

[0022] As a further embodiment of the present invention: the rotating assembly includes a Maltese cross movement kit disposed on the base, the Maltese cross movement kit being connected to the rotating shaft of the mounting plate via a second belt;

[0023] The Maltese cross movement kit includes a drive wheel coaxially connected to the output shaft of the drive unit, the drive wheel being adapted to a driven wheel rotatably mounted on the base, and the driven wheel being connected to the second belt.

[0024] As a further embodiment of the present invention: the centrifugal assembly includes a connecting plate fixedly connected to the threaded sleeve, a rotating shaft rotatably mounted on the connecting plate, the rotating shaft being connected to the fourth belt, a follower rod being provided at the bottom of the rotating shaft, two second sliding grooves symmetrically arranged on the follower rod, a second slider being slidably mounted in the second sliding groove, a counterweight being connected to the second slider, and a pulling rod being rotatably mounted on the second slider, the end of the pulling rod away from the second slider being rotatably connected to the follower sleeve sleeved on the rotating shaft;

[0025] The follower sleeve is provided with an annular groove, and a collar is provided in the annular groove. The collar is connected to the triangular piece through a vertical plate that passes through the mounting plate and the clamping member.

[0026] A method of using the integrated circuit board rotation testing device based on the positioning structure as described above includes the following steps:

[0027] Step 1: Take the circuit board to be tested and perform a high-load performance test, and place the circuit board on the mounting plate after the test is completed;

[0028] Step 2: Control the vertical clamping component to move, and at the same time, make the horizontal pushing component move. The horizontal pushing component will contact the circuit board before the vertical clamping component contacts the circuit board, so that the length direction of the circuit board is consistent with the length direction of the mounting plate. The horizontal pushing component stops moving, and then the vertical clamping component continues to move to clamp both ends of the circuit board.

[0029] Step 3: After the circuit board is positioned and clamped, a manual quality inspection is carried out to check whether there are any burnt components on the circuit board. The manual quality inspection process lasts for 30 seconds.

[0030] Step 4: After manual inspection is completed, the power unit is activated. The power unit will first activate the centrifugal component to pull the triangular piece to generate a downward force. Under the action of this force, the triangular piece cooperates with the longitudinal clamping component to fasten the two sides of the circuit board. Then, while the centrifugal component is in motion, the power unit will drive the rotating component to rotate the circuit board 180°. The detection device body set on the base will then perform further quality inspection on the circuit board to detect the temperature status of the components on the circuit board.

[0031] Step 5: After completing the test, remove the circuit board.

[0032] Compared with the prior art, the beneficial effects of the present invention are:

[0033] The power mechanism allows for automatic transfer of the circuit board to the lower part of the testing device after manual quality inspection, thus improving testing speed. Furthermore, before the mounting plate rotates, the second gear rotates first, generating centrifugal force through the second slider and counterweight, increasing the force exerted by the triangular component on the circuit board. As the mounting plate rotates, the speed of the second gear further increases, further enhancing the force exerted by the triangular component on the circuit board. This ensures that the circuit board does not shift due to its center of gravity not being at the center of rotation during rapid rotation, thereby further improving testing accuracy.

[0034] The positioning structure enables sequential longitudinal and lateral positioning of the circuit board, making it more suitable for inspection after positioning. This facilitates comparison by staff and inspection by the testing device, improving inspection accuracy and preventing false or missed detections. Furthermore, after the clamping component abuts against the side wall of the circuit board, the force exerted by the spring on the triangular component provides a certain clamping force, ensuring that the circuit board is not misaligned due to accidental human contact during inspection. This improves the accuracy of the testing device. Additionally, the inclined surface on the triangular component allows it to clamp circuit boards of a certain thickness, enhancing the device's applicability. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of one embodiment of an integrated circuit board rotation testing device based on a positioning structure.

[0036] Figure 2 for Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0037] Figure 3 This is a schematic diagram of the positioning structure in one embodiment of an integrated circuit board rotation testing device based on a positioning structure.

[0038] Figure 4 This is a schematic diagram of another angle of the positioning structure in one embodiment of an integrated circuit board rotation testing device based on a positioning structure.

[0039] Figure 5 This is a schematic diagram of the power mechanism in one embodiment of an integrated circuit board rotation testing device based on a positioning structure.

[0040] Figure 6 for Figure 5 Enlarged schematic diagram of the structure at point B.

[0041] Figure 7 This is a schematic diagram of the telescopic transmission structure and centrifugal component in one embodiment of an integrated circuit board rotation testing device based on a positioning structure.

[0042] Figure 8 An exploded view of the centrifugal component in one embodiment of a positioning-based integrated circuit board rotation testing device.

[0043] In the diagram: 1. Base; 2. Mounting plate; 3. No. 1 slide groove; 4. No. 1 slider; 5. Clamping component; 6. Threaded sleeve; 7. Double-acting lead screw; 8. No. 1 belt; 9. Side plate; 10. Protrusion; 11. Pushing component; 12. Horizontal groove; 13. Inclined groove; 14. Pushing plate; 15. Guide groove; 16. Drive unit; 17. Driving wheel; 18. Driven wheel; 19. No. 2 belt; 20. No. 1 gear; 21. Gear ring; 22. Stop; 23. Gear No. 2; 24. Connecting rod No. 1; 25. Connecting rod No. 2; 26. Belt No. 3; 27. Belt No. 4; 28. Rotating shaft; 29. ​​Follower rod; 30. Slide groove No. 2; 31. Slider No. 2; 32. Counterweight; 33. Pull rod; 34. Follower sleeve; 35. Collar; 36. Connecting plate; 37. Vertical plate; 38. Triangular piece; 39. Vertical rod; 40. Spring; 41. Detection device body. Detailed Implementation

[0044] 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.

[0045] Furthermore, elements in this invention are referred to as being "fixed to" or "set on" another element, which may be directly on the other element or may also include an intervening element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or may also include an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0046] Please see Figures 1-8 In this embodiment of the invention, an integrated circuit board rotation testing device based on a positioning structure includes: a base 1, a positioning structure, a triangular piece 38, and a power mechanism.

[0047] The base 1 is provided with a rotatable mounting plate 2;

[0048] The positioning structure is disposed on the mounting plate 2. The positioning structure includes a longitudinal clamping component and a transverse pushing component. The longitudinal clamping component and the transverse pushing component cooperate to position and fix the circuit board placed on the mounting plate 2.

[0049] The longitudinal clamping assembly includes two bidirectional lead screws 7 rotatably mounted on the mounting plate 2. The two bidirectional lead screws 7 are connected by a No. 1 belt 8, and each bidirectional lead screw 7 is symmetrically provided with two threaded sleeves 6 that are threadedly connected to it. The threaded sleeves 6 are connected to the centrifugal assembly.

[0050] The mounting plate 2 is provided with multiple sets of first slide grooves 3, and a first slider 4 is slidably installed in the first slide groove 3. A clamping member 5 is installed on the first slider 4, and the first slider 4 is connected to the threaded sleeve 6.

[0051] The lateral pushing component includes side plates 9 symmetrically installed on both sides of the clamping member 5, and a protrusion 10 is fixed at the end of the side plate 9 away from the clamping member 5.

[0052] The lateral pushing component also includes a guide groove 15 formed on the mounting plate 2. A pushing plate 14 is slidably installed in the guide groove 15. A pushing member 11 is installed on the pushing plate 14. Sliding grooves are symmetrically arranged on both sides of the pushing member 11. The protrusion 10 can slide in the sliding groove.

[0053] The sliding groove includes a horizontal groove 12 and an inclined groove 13, and the horizontal groove 12 and the inclined groove 13 are smoothly transitioned.

[0054] The triangular member 38 is slidably disposed on the longitudinal clamping assembly. The triangular member 38 is connected to the elastic structure disposed on the longitudinal clamping assembly. When the triangular member 38 abuts against the side wall of the circuit board, the triangular member 38 can rise in the vertical direction of space.

[0055] The elastic structure includes a vertical rod 39 fixedly installed on the clamping member 5. The vertical rod 39 is slidably connected to a protrusion provided on the triangular member 38. A spring 40 is also sleeved on the vertical rod 39. One end of the spring 40 is connected to the end of the vertical rod 39, and the other end is connected to the protrusion.

[0056] The mounting plate 2 has multiple top rods arranged diagonally. When placing the circuit board, the circuit board can be placed on the top rods, and there is no need to place the circuit board in a specific position, thus improving the portability when placing the circuit board.

[0057] After the circuit board is placed on the top rod, one of the double-acting lead screws 7 is rotated. At this time, under the action of the first belt 8, both double-acting lead screws 7 can rotate synchronously, thereby causing the two threaded sleeves 6 set on the two double-acting lead screws 7 to move closer or further apart. Specifically, when the two threaded sleeves 6 move closer together, they will drive the first slider 4 to move along the length direction of the first slide groove 3, so that the two clamping parts 5 move closer together. When the clamping parts 5 move closer together, the protrusion 10 connected to the clamping parts 5 through the side plate 9 will move towards the center of the mounting plate 2, and the protrusion 10... In the initial stage of the movement of the protrusion 10, the protrusion 10 will move in the inclined groove 13, causing the pusher 11 to move toward the circuit board, thereby driving the pusher plate 14 to move. When the pusher plate 14 abuts against the side wall of the circuit board, after pushing the circuit board to the predetermined position, the protrusion 10 will slide into the horizontal groove 12 in the sliding groove. At this time, the pusher plate 14 and the side wall of the circuit board remain in contact, so that the projection of the central axis of the circuit board along its length direction and the central axis of the mounting plate 2 along its length direction on the horizontal plane coincides, thereby achieving the positioning of the circuit board in the lateral direction.

[0058] After the circuit board is positioned in the lateral direction, the clamping member 5 will continue to move until it abuts against the side wall of the circuit board in the longitudinal direction. The side wall of the circuit board will drive the triangular member 38 inside the clamping member 5 to move upward and compress the spring 40. After the triangular member 38 moves to the upper part of the circuit board, the side wall of the circuit board abuts against the inner wall of the clamping member 5, and the positioning of the circuit board in the longitudinal direction is completed.

[0059] Through the above settings, the circuit board is positioned longitudinally and laterally in sequence. After the circuit board is positioned, it is more suitable for inspection, making it easier for staff to compare and inspect with the inspection device body 41, improving inspection accuracy and avoiding false or missed inspections. At the same time, after the clamping member 5 abuts against the side wall of the circuit board, the force of the spring 40 acting on the triangular member 38 can make the triangular member 38 have a certain clamping force on the circuit board, ensuring that the circuit board will not be misaligned due to accidental manual contact during the inspection process, thereby improving the accuracy of the inspection device body 41 during inspection. Furthermore, since the triangular member 38 is provided with an inclined surface, it has the ability to clamp circuit boards within a certain thickness range, thereby improving the applicability of the device.

[0060] Please see Figure 5 , Figure 6 , Figure 7 , Figure 8 The power mechanism is connected to the triangular member 38. The power mechanism includes a power component, a rotating component, and two sets of centrifugal components. The centrifugal components can drive the triangular member 38 to move downward. When the power component is activated, the power component can drive the centrifugal components and the rotating components to activate in sequence.

[0061] The power assembly includes a drive device 16 fixedly mounted on the base 1. The output shaft of the drive device 16 passes through the base 1 and is connected to a first gear 20. The first gear 20 meshes with a gear ring 21 disposed on the base 1. An external groove is formed on the outer circumferential surface of the gear ring 21. The external groove is slidably connected to a plurality of stop members 22 disposed circumferentially and at equal intervals on the base 1.

[0062] The power assembly also includes a telescopic transmission structure connecting the output shaft of the drive device 16 and the centrifugal assembly. The telescopic transmission structure includes a second gear 23 rotatably mounted on the mounting plate 2. The second gear 23 meshes with the gear ring 21, and a first connecting rod 24 is rotatably mounted on the shaft of the second gear 23. A second connecting rod 25 is rotatably mounted at the end of the first connecting rod 24 away from the second gear 23. The second connecting rod 25 is connected to the centrifugal assembly.

[0063] Under the action of the telescopic transmission structure, the power of the second gear 23 can be effectively transmitted to the centrifugal assembly during the process of the clamping member 5 moving to clamp the circuit board.

[0064] Two coaxial pulleys are rotatably mounted at the rotatable connection between the first connecting rod 24 and the second connecting rod 25. One of the pulleys is connected to the shaft of the second gear 23 via the third belt 26, and the other pulley is connected to the centrifugal assembly via the fourth belt 27.

[0065] The rotating assembly includes a Maltese cross movement kit mounted on the base 1, the Maltese cross movement kit being connected to the pivot of the mounting plate 2 via a second belt 19;

[0066] The Maltese cross movement kit includes a drive wheel 17 coaxially connected to the output shaft of the drive unit 16, the drive wheel 17 being adapted to a driven wheel 18 rotatably mounted on the base 1, and the driven wheel 18 being connected to the second belt 19;

[0067] The centrifugal assembly includes a connecting plate 36 fixedly connected to the threaded sleeve 6. A rotating shaft 28 is rotatably mounted on the connecting plate 36. The rotating shaft 28 is connected to the fourth belt 27. A follower rod 29 is also provided at the bottom of the rotating shaft 28. Two second slide grooves 30 are symmetrically arranged on the follower rod 29. A second slider 31 is slidably mounted in the second slide groove 30. A counterweight 32 is connected to the second slider 31. A pull rod 33 is rotatably mounted on the second slider 31. The end of the pull rod 33 away from the second slider 31 is rotatably connected to the follower sleeve 34 sleeved on the rotating shaft 28.

[0068] The follower sleeve 34 is provided with an annular groove, and a collar 35 is provided in the annular groove. The collar 35 is connected to the triangular piece 38 through the upright plate 37 that passes through the mounting plate 2 and the clamping piece 5.

[0069] After the circuit board completes manual quality inspection, it needs to be rotated 180° to transfer the inspected portion to the lower part of the testing device body 41 for further testing. At this time, the drive device 16 operates. When the drive device 16 operates, its output shaft drives the connected gear 20 to rotate. Gear 20 and gear ring 21 are meshed, causing gear ring 21 to rotate as gear 20 rotates. While gear ring 21 rotates, gear 23, which meshes with gear ring 21, rotates. The shaft of gear 23 drives the rotating shaft 28 to rotate via belts 26 and 27, thus causing the rotating shaft 28 to rotate. The follower rod 29, which is fixedly connected to the rotating shaft 28, rotates. When the follower rod 29 rotates, the two second sliders 31 and the counterweight 32 set on the follower rod 29 will generate centrifugal force. Under the action of centrifugal force, the two second sliders 31 tend to move away from each other, and through the pull rod 33, the follower sleeve 34 tends to move downward. At the same time, the follower sleeve 34 is rotatably connected to the collar 35, so that under the pull of the collar 35 and the upright plate 37, the triangular piece 38 tends to move downward, so that the force of the triangular piece 38 on the circuit board is increased, and the clamping force of the triangular piece 38 on the circuit board is increased before the mounting plate 2 rotates.

[0070] During the above process, the first gear 20 rotates, causing the driving wheel 17 to rotate. In the initial stage of the driving wheel 17's movement, the driven wheel 18 is in a locked state. That is, in this state, the first gear 20 rotates, but the driven wheel 18 does not rotate. This makes the position of the mounting plate 2 more stable, and also allows the centrifugal assembly to increase the clamping force of the triangular piece 38 on the circuit board before rotating the mounting plate 2. As the first gear 20 continues to rotate, the driving wheel 17 will drive the driven wheel 18 to rotate, thereby causing the mounting plate 2 to rotate. During the 180° rotation, the gear ring 21 rotates, which drives the second gear 23 to rotate. At the same time, the second gear 23 follows the movement of the mounting plate 2, increasing the relative speed between the gear ring 21 and the second gear 23. That is, when the mounting plate 2 rotates, the rotational speed of the second gear 23 can be further increased, thereby increasing the rotational speed of the rotating shaft 28. This causes the second slider 31 and the counterweight 32 to generate a greater centrifugal force, resulting in a greater force exerted by the triangular piece 38 on the circuit board. In other words, when the mounting plate 2 rotates, the circuit board is clamped with a greater force.

[0071] With the above settings, on the one hand, the circuit board can be automatically transferred to the lower part of the detection device body 41 after manual quality inspection, thereby improving the detection speed. On the other hand, before the mounting plate 2 rotates, the second gear 23 rotates first, and centrifugal force is established through the second slider 31 and the counterweight 32, so that the force of the triangular piece 38 on the circuit board is increased. When the mounting plate 2 rotates, the rotation speed of the second gear 23 is further increased, so as to further increase the force of the triangular piece 38 on the circuit board. This ensures that the circuit board will not shift due to the center of gravity not being in the center of rotation during the rapid rotation of the circuit board, thereby further improving the detection accuracy.

[0072] As an embodiment of the present invention, a method for using the integrated circuit board rotation testing device based on the positioning structure is also proposed, comprising the following steps:

[0073] Step 1: Take the circuit board to be tested and perform a high-load performance test, and place the circuit board on the mounting plate 2 after the test is completed;

[0074] Step 2: Control the vertical clamping component to move, and at the same time make the horizontal pushing component move. The horizontal pushing component will contact the circuit board before the vertical clamping component contacts the circuit board, so that the length direction of the circuit board is consistent with the length direction of the mounting plate 2. The horizontal pushing component stops moving, and then the vertical clamping component continues to move to clamp both ends of the circuit board.

[0075] Step 3: After the circuit board is positioned and clamped, a manual quality inspection is carried out to check whether there are any burnt components on the circuit board. The manual quality inspection process lasts for 30 seconds.

[0076] Step 4: After the manual inspection is completed, the power component is activated. The power component will first activate the centrifugal component to pull the triangular piece 38 to generate a downward force. Under the action of this force, the triangular piece 38 cooperates with the longitudinal clamping component to fasten the two sides of the circuit board. Then, while the centrifugal component is in motion, the power component will drive the rotating component to rotate the circuit board 180°. The detection device body 41 set on the base 1 will then perform further quality inspection on the circuit board to detect the temperature status of the components on the circuit board.

[0077] Step 5: After completing the test, remove the circuit board.

[0078] In summary, after the circuit board is placed on the top rod, rotating one of the double-acting lead screws 7 causes both double-acting lead screws 7 to rotate synchronously under the action of the first belt 8. This causes the two threaded sleeves 6 mounted on the two double-acting lead screws 7 to move closer or further apart. Specifically, when the two threaded sleeves 6 move closer together, they will drive the first slider 4 to move along the length of the first groove 3, causing the two clamping parts 5 to move closer together. When the clamping parts 5 move closer together, the protrusion 10 connected to the clamping parts 5 via the side plate 9 will move towards the center of the mounting plate 2. 10 slides within the sliding groove. In the initial stage of the movement of the protrusion 10, the protrusion 10 will move within the inclined groove 13, causing the pusher 11 to move toward the circuit board, thereby driving the pusher plate 14 to move. When the pusher plate 14 abuts against the side wall of the circuit board, after pushing the circuit board to the predetermined position, the protrusion 10 will slide into the horizontal groove 12 in the sliding groove. At this time, the pusher plate 14 and the side wall of the circuit board remain in contact, so that the projection of the central axis of the circuit board along its length direction and the central axis of the mounting plate 2 along its length direction on the horizontal plane coincides, thereby achieving the positioning of the circuit board in the lateral direction.

[0079] After the circuit board is positioned in the lateral direction, the clamping member 5 will continue to move until it abuts against the side wall of the circuit board in the longitudinal direction. The side wall of the circuit board will drive the triangular member 38 inside the clamping member 5 to move upward and compress the spring 40. After the triangular member 38 moves to the upper part of the circuit board, the side wall of the circuit board abuts against the inner wall of the clamping member 5, and the positioning of the circuit board in the longitudinal direction is completed.

[0080] After the circuit board completes manual quality inspection, it needs to be rotated 180° to transfer the inspected portion to the lower part of the testing device body 41 for further testing. At this time, the drive device 16 operates. When the drive device 16 operates, its output shaft drives the connected gear 20 to rotate. Gear 20 and gear ring 21 are meshed, causing gear ring 21 to rotate as gear 20 rotates. While gear ring 21 rotates, gear 23, which meshes with gear ring 21, rotates. The shaft of gear 23 drives the rotating shaft 28 to rotate via belts 26 and 27, thus causing the rotating shaft 28 to rotate. The follower rod 29, which is fixedly connected to the rotating shaft 28, rotates. When the follower rod 29 rotates, the two second sliders 31 and the counterweight 32 set on the follower rod 29 will generate centrifugal force. Under the action of centrifugal force, the two second sliders 31 tend to move away from each other, and through the pull rod 33, the follower sleeve 34 tends to move downward. At the same time, the follower sleeve 34 is rotatably connected to the collar 35, so that under the pull of the collar 35 and the upright plate 37, the triangular piece 38 tends to move downward, so that the force of the triangular piece 38 on the circuit board is increased, and the clamping force of the triangular piece 38 on the circuit board is increased before the mounting plate 2 rotates.

[0081] During the above process, the first gear 20 rotates, causing the driving wheel 17 to rotate. In the initial stage of the driving wheel 17's movement, the driven wheel 18 is in a locked state. That is, in this state, the first gear 20 rotates, but the driven wheel 18 does not rotate. This makes the position of the mounting plate 2 more stable, and also allows the centrifugal assembly to increase the clamping force of the triangular piece 38 on the circuit board before rotating the mounting plate 2. As the first gear 20 continues to rotate, the driving wheel 17 will drive the driven wheel 18 to rotate, thereby causing the mounting plate 2 to rotate. During the 180° rotation, the gear ring 21 rotates, which drives the second gear 23 to rotate. At the same time, the second gear 23 follows the movement of the mounting plate 2, increasing the relative speed between the gear ring 21 and the second gear 23. That is, when the mounting plate 2 rotates, the rotational speed of the second gear 23 can be further increased, thereby increasing the rotational speed of the rotating shaft 28. This causes the second slider 31 and the counterweight 32 to generate a greater centrifugal force, resulting in a greater force exerted by the triangular piece 38 on the circuit board. In other words, when the mounting plate 2 rotates, the circuit board is clamped with a greater force.

[0082] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0083] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A rotating testing device for integrated circuit boards based on a positioning structure, characterized in that, include: A base (1) is provided with a rotatable mounting plate (2); A positioning structure is provided on the mounting plate (2). The positioning structure includes a longitudinal clamping component and a transverse pushing component. The longitudinal clamping component and the transverse pushing component cooperate to position and fix the circuit board placed on the mounting plate (2). A triangular piece (38) is slidably disposed on the longitudinal clamping assembly. The triangular piece (38) is connected to an elastic structure disposed on the longitudinal clamping assembly. When the triangular piece (38) abuts against the side wall of the circuit board, the triangular piece (38) can rise in the vertical direction of space. The power mechanism is connected to the triangular member (38). The power mechanism includes a power component, a rotating component and two sets of centrifugal components. The centrifugal components can drive the triangular member (38) to move downward. When the power component is activated, the power component can drive the centrifugal components and the rotating components to move in sequence. The longitudinal clamping assembly includes two bidirectional lead screws (7) rotatably mounted on the mounting plate (2). The two bidirectional lead screws (7) are connected by a No. 1 belt (8), and each bidirectional lead screw (7) is symmetrically provided with two threaded sleeves (6) threadedly connected to it. The threaded sleeves (6) are connected to the centrifugal assembly. The mounting plate (2) is provided with multiple sets of first slide grooves (3), and a first slider (4) is slidably installed in the first slide groove (3). A clamping part (5) is installed on the first slider (4), and the first slider (4) is connected to the threaded sleeve (6). The lateral pushing component includes side plates (9) symmetrically installed on both sides of the clamping member (5), and a protrusion (10) is fixed at one end of the side plate (9) away from the clamping member (5). The lateral pushing component also includes a guide groove (15) opened on the mounting plate (2), a push plate (14) is slidably installed in the guide groove (15), a pusher (11) is installed on the push plate (14), and sliding grooves are symmetrically arranged on both sides of the pusher (11), and the protrusion (10) can slide in the sliding groove. The sliding groove includes a horizontal groove (12) and an inclined groove (13), and the horizontal groove (12) and the inclined groove (13) are smoothly transitioned.

2. The integrated circuit board rotation testing device based on a positioning structure according to claim 1, characterized in that, The elastic structure includes a vertical rod (39) fixedly installed on the clamp (5), the vertical rod (39) being slidably connected to a protrusion provided on the triangular member (38), and a spring (40) being sleeved on the vertical rod (39), one end of the spring (40) being connected to the end of the vertical rod (39), and the other end being connected to the protrusion.

3. The integrated circuit board rotation testing device based on a positioning structure according to claim 1, characterized in that, The power assembly includes a drive device (16) fixedly mounted on the base (1). The output shaft of the drive device (16) passes through the base (1) and is connected to a first gear (20). The first gear (20) meshes with a gear ring (21) disposed on the base (1). An external groove is provided on the outer circumferential surface of the gear ring (21). The external groove is slidably connected to a plurality of stop members (22) disposed circumferentially and equidistantly on the base (1). The power assembly also includes an output shaft that connects the drive device (16) and a telescopic transmission structure for the centrifugal assembly.

4. The integrated circuit board rotation testing device based on a positioning structure according to claim 3, characterized in that, The telescopic transmission structure includes a second gear (23) rotatably mounted on the mounting plate (2), the second gear (23) meshing with the gear ring (21), and a first connecting rod (24) rotatably mounted on the shaft of the second gear (23). A second connecting rod (25) is rotatably mounted at the end of the first connecting rod (24) away from the second gear (23), and the second connecting rod (25) is connected to the centrifugal assembly. Two coaxial pulleys are rotatably mounted at the rotatable connection between the first connecting rod (24) and the second connecting rod (25). One of the pulleys is connected to the shaft of the second gear (23) via the third belt (26), and the other pulley is connected to the centrifugal assembly via the fourth belt (27).

5. The integrated circuit board rotation testing device based on a positioning structure according to claim 3, characterized in that, The rotating assembly includes a Maltese cross movement kit disposed on the base (1), the Maltese cross movement kit being connected to the pivot of the mounting plate (2) via a second belt (19); The Maltese cross movement kit includes a drive wheel (17) coaxially connected to the output shaft of the drive unit (16), the drive wheel (17) being adapted to a driven wheel (18) rotatably mounted on the base (1), the driven wheel (18) being connected to the second belt (19).

6. The integrated circuit board rotation testing device based on a positioning structure according to claim 4, characterized in that, The centrifugal assembly includes a connecting plate (36) fixedly connected to the threaded sleeve (6), a rotating shaft (28) rotatably mounted on the connecting plate (36), the rotating shaft (28) being connected to the fourth belt (27), a follower rod (29) being provided at the bottom of the rotating shaft (28), two second slide grooves (30) symmetrically arranged on the follower rod (29), a second slider (31) being slidably mounted in the second slide groove (30), a counterweight (32) being connected to the second slider (31), and a pull rod (33) being rotatably mounted on the second slider (31), the end of the pull rod (33) away from the second slider (31) being rotatably connected to the follower sleeve (34) sleeved on the rotating shaft (28); The follower sleeve (34) is provided with an annular groove, and a collar (35) is provided in the annular groove. The collar (35) is connected to the triangular piece (38) through the upright plate (37) that passes through the mounting plate (2) and the clamping member (5).

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