Circuit board component detection device

Abstract

A circuit board component detection device disclosed by the present invention comprises a workbench, a power-on detection assembly, a recovery assembly, a turn-over assembly, a stability detection assembly and a clamping assembly, two first telescopic rods are fixedly installed on the workbench, and transmission shafts of the two first telescopic rods are fixedly connected with installation blocks respectively. When a first gear is in contact with a first rack, the first gear can drive the detection table to overturn backwards, at the moment, a circuit board stands on a side plate of the detection table and cannot fall off immediately, and when the circuit board is overturned by more than 90 degrees, the back face of the circuit board is upward and falls on a rotating plate; and then when the detection table continues to press the connecting rod forwards, a fourth rack slides to drive a second gear to rotate at the same time, so that a rotating plate drives the turned circuit board to move to the workbench, workers can conveniently detect the back face of the circuit board, and the situation that normal work of the circuit is affected by possible scratching, abrasion and other situations of the circuit on the back face is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit board component detection, and in particular to a circuit board component detection device. Background Art

[0002] Electronic components are components of electronic elements and small instruments. They are usually composed of multiple parts and can be used in similar products. They cover a variety of devices such as capacitors and transistors, such as common diodes. They include resistors, capacitors, inductors, potentiometers and many other types. They are usually integrated into PCB boards to form circuit boards. Since the quality of electronic components affects the performance of circuit boards, it is necessary to use special testing equipment to test the installed components.

[0003] Regarding the new electronic component detection device disclosed in the patent publication number "CN112698061B", a special detector is used to detect the installation height and width of components on the circuit board. Although it can avoid the situation where components located on the outside and the top are not installed properly, resulting in the inability to install the machine, in actual use, during the production, assembly or transportation of the circuit board, the circuit on the back may be scratched, worn, etc. by external forces such as scraping and collision, which may affect the normal operation of the circuit. Accordingly, this application proposes a circuit board component detection device. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a circuit board component detection device.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A circuit board component detection device comprises a workbench, a current detection component, a recovery component, a flipping component, a stabilization detection component and a clamping component; Two first telescopic rods are fixedly installed on the workbench, the transmission shafts of the two first telescopic rods are respectively fixedly connected with mounting blocks, the two mounting blocks are respectively fixedly connected with mounting plates, and a second slide groove is provided on the workbench; The electrical conductivity detection component is used to detect the electrical conductivity of the circuit board; The recycling component is used to classify unqualified circuit boards; The flipping assembly is used to flip the circuit board over to inspect the circuits; The stability detection component is used to detect the installation stability of components on the circuit board; The clamping assembly is used to clamp the circuit board during power-on detection.

[0006] Preferably, a gantry is fixedly connected to the workbench, a first slide is provided on the gantry, a second telescopic rod is slidably connected to the first slide, two legs are fixedly installed under the workbench, a first slot is provided on the workbench, two baffles are fixedly connected on both sides of the workbench, a first screw rod is rotatably connected between the two baffles, a sliding rod is provided on one side of the first screw rod and fixedly connected between the two baffles, and a first slider is slidably connected to the first screw rod and the sliding rod respectively.

[0007] Preferably, the electrical conductivity detection component consists of a round block, a second telescopic rod and a detection module, the round block is slidably connected to the gantry, the second telescopic rod is fixedly installed on the round block, the second telescopic rod is slidably connected to the first slide groove, the detection module is fixedly installed on the output shaft of the second telescopic rod, and the detection module is provided with wire plug pins.

[0008] Preferably, the recycling component consists of a rotating plate, two second racks and a collection box. The rotating plate is arranged in the first slot. The rotating plate is made of sponge material. The two second racks are respectively fixedly connected to the inner walls below the two mounting plates. The collection box is fixedly connected between the two legs.

[0009] Preferably, the flipping assembly consists of a detection platform, two first racks and two first gears, the two first gears are respectively rotatably connected to the two first sliders, the detection platform is fixedly connected between the two first gears, the two first racks are respectively fixedly connected to the inner walls above the two mounting plates, the two first racks are respectively meshed with the two first gears, and the two first gears are respectively meshed with the two second racks.

[0010] Preferably, the stability detection component consists of two installation boxes, two third racks, two groups of saw teeth and a plurality of first springs; the two installation boxes are respectively fixedly connected to the workbench, the two third racks are respectively slidably connected in the installation boxes, one end of a plurality of first springs is respectively fixedly connected to the workbench, and the other end is respectively fixedly connected to the two third racks, the two groups of saw teeth are respectively fixedly connected under the detection table, and the two groups of saw teeth are respectively meshed with the two third racks.

[0011] Preferably, the clamping assembly consists of two second screw rods, two second sliders and two clamping plates, the two second screw rods are respectively rotatably connected in the second slide groove, the two second sliders are respectively threadedly connected to the two second screw rods, the two second sliders are respectively slidably connected in the second slide groove, the two clamping plates are respectively slidably connected on the workbench, and the two clamping plates are respectively fixedly connected to the two second sliders.

[0012] Preferably, two second slots are provided on the workbench, two connecting rods are slidably connected in the two second slots respectively, second springs are fixedly connected between the baffle and the two connecting rods respectively, two brackets are fixedly connected under the workbench, fourth racks are slidably connected to the two brackets respectively, and the two fourth racks are fixedly connected to the two connecting rods respectively.

[0013] Preferably, two second gears are fixedly connected on both sides of the rotating plate, and the two second gears are rotatably connected to the inner walls on both sides of the first slot, and the two second gears are respectively meshed with two fourth racks. A connecting frame is fixedly connected under the two mounting plates, and an arc plate is fixedly connected under the connecting frame, and the arc surface of the arc plate fits with one end of the rotating plate.

[0014] Preferably, a fixing clamp is fixedly installed on the side plate of the detection table, a worm is fixedly connected between the two second screw rods, a first motor is fixedly installed on the baffle, a transmission shaft of the first motor is fixedly connected to one end of the first screw rod, a second motor is fixedly installed under the workbench, a worm gear is fixedly connected to the transmission shaft of the second motor, and the worm gear is meshingly connected to the worm gear.

[0015] The present invention has the following beneficial effects: 1. Through the stability detection component, place the circuit board on the test bench, bend the fixing clip to clamp it, start the first motor to drive the first screw to rotate, so that the test bench slides, and the lower sawtooth continuously squeezes the third rack, causing the third rack to slide downward, and then rebounds and collides under the action of the first spring. The high-frequency vibration generated by this cycle can check whether the components on the circuit board are installed securely.

[0016] 2. Through the power detection component and the clamping component, when the detection platform slides to the bottom of the gantry, the second motor drives the worm to rotate the worm wheel, so that the two second screws rotate, so that the two clamping plates clamp the circuit board, and then the round block is controlled to align the plug pins on the detection module with the power interface on the circuit board, and then the second telescopic rod is controlled to insert the plug pins on the detection module into the power interface on the circuit board to detect the power performance of the circuit board, so as to realize automatic detection while avoiding detection errors caused by circuit board movement, thereby improving the accuracy and reliability of detection.

[0017] 3. Through the recycling component, when the circuit board fails the inspection, the first telescopic rod drives the mounting plate to move up, so that the second rack can contact the first gear, and at the same time, the mounting plate drives the arc plate to move up through the connecting frame. Then, when the first gear on the test bench touches the second rack, the test bench can be tilted, so that the circuit board on the test bench slides onto the rotating plate, and then slides from the rotating plate into the collection box, and the unqualified circuit boards are separated separately, which is convenient for subsequent unified processing and recycling, avoiding the mixing of unqualified circuit boards into qualified products, and ensuring the overall quality of the product.

[0018] 4. Through the flip assembly, when the circuit board is qualified, the fixing clip is opened to release the circuit board limit, and the first motor is used to make the test platform continue to slide forward. When the first gear contacts the first rack, the first gear can drive the test platform to flip backward. At this time, the circuit board stands on the side plate of the test platform and will not fall off immediately. When it is flipped over ninety degrees, the circuit board will fall on the turn plate with its back facing up. Then, when the test platform continues to press the connecting rod forward, the fourth rack slides and drives the second gear to rotate, so that the turn plate drives the flipped circuit board to move to the workbench, which is convenient for the staff to inspect the back of the circuit board and avoid possible scratches and wear on the back of the circuit board that affect the normal operation of the circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a circuit board component detection device proposed by the present invention; Figure 2 This is a schematic diagram of the connection structure of the components such as the mounting box, mounting frame, and collection box of a circuit board component detection device proposed by the present invention; Figure 3 This is a schematic diagram of the connection structure of the components below the workbench of a circuit board component detection device proposed by the present invention; Figure 4 This is a schematic diagram of the connection structure between a gantry frame of a circuit board component detection device and a current detection assembly proposed by the present invention; Figure 5 This is a schematic diagram of the connection structure between a clamping plate and a second slider of a circuit board component detection device proposed by the present invention; Figure 6 This is a schematic diagram of the connection structure of the baffle, rotating plate, curved plate and other parts of a circuit board component detection device proposed by the present invention; Figure 7 This is a schematic diagram of the connection structure of the connecting rod, rotating plate, second spring and other parts of a circuit board component detection device proposed by the present invention; Figure 8 This is a cross-sectional view of the interior of a mounting box of a circuit board component detection device proposed by the present invention; Fig. 9This is a schematic diagram of the connection structure of a testing platform, saw teeth and a first gear of a circuit board component testing device proposed by the present invention; Fig.10 This is a schematic diagram of the connection structure of components such as a testing platform, a fixing clamp, and a first sliding block of a circuit board component testing device proposed by the present invention; Fig.11 This is a schematic diagram of the connection structure of parts such as legs, a workbench, and a collection box of a circuit board component detection device proposed by the present invention.

[0020] In the figure: 1 workbench, 2 legs, 3 gantry, 4 baffle, 5 first motor, 6 clamping plate, 7 round block, 8 first slide, 9 detection table, 10 slide rod, 11 first screw rod, 12 mounting box, 13 third rack, 14 first telescopic rod, 15 mounting block, 16 mounting plate, 17 second spring, 18 second notch, 19 connecting rod, 20 collecting box, 21 first rack, 22 second rack, 23 second slide, 24 second screw rod, 25 worm, 26 connecting frame, 27 first gear, 28 sawtooth, 29 second telescopic rod, 30 detection module, 31 first notch, 32 second slider, 33 second gear, 34 fixing clamp, 35 fourth rack, 36 second motor, 37 worm gear, 38 rotating plate, 39 arc plate, 40 bracket, 41 first spring, 42 first slider. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Embodiment 1: Reference Figure 1 , Figure 8 and Fig. 9 , a circuit board component detection device, comprising a workbench 1, a conductivity detection component, a recovery component, a flip component, a stability detection component and a clamping component; Two baffles 4 are fixedly connected on both sides of the workbench 1, and a first screw rod 11 is rotatably connected between the two baffles 4. A sliding rod 10 is provided on one side of the first screw rod 11 and fixedly connected between the two baffles 4. A first slider 42 is slidably connected to the first screw rod 11 and the sliding rod 10 respectively. A first motor 5 is fixedly installed on the baffle 4, and a transmission shaft of the first motor 5 is fixedly connected to one end of the first screw rod 11. When the first motor 5 drives the first screw rod 11 to rotate, the detection platform 9 can drive the first slider 42 to slide. A fixing clamp 34 is fixedly installed on the side panel of the detection platform 9, which is used to clamp the components on the circuit board when detecting the stability of the components.

[0023] The stability detection component is used to detect the installation stability of components on the circuit board. The stability detection component consists of two installation boxes 12, two third racks 13, two groups of saw teeth 28 and a plurality of first springs 41. The two installation boxes 12 are respectively fixedly connected to the workbench 1, and the two third racks 13 are respectively slidably connected in the installation boxes 12. One end of the plurality of first springs 41 is respectively fixedly connected to the workbench 1, and the other end is respectively fixedly connected to the two third racks 13. In this way, when the third rack 13 is squeezed, it will slide downward in the installation box 12. After the squeezing force disappears, it will rebound upward under the action of the first spring 41. The two groups of saw teeth 28 are respectively fixedly connected under the detection table 9, and the two groups of saw teeth 28 are respectively meshed with the two third racks 13. When the saw teeth 28 slide and contact the third rack 13, under the action of the first spring 41, the third rack 13 can slide back and forth up and down continuously.

[0024] In this embodiment, the circuit board is placed on the testing table 9, the fixing clamp 34 is bent to clamp it, and the first motor 5 is started to drive the first screw rod 11 to rotate. While the testing table 9 slides, the lower saw teeth 28 continuously squeeze the third rack 13, causing the third rack 13 to slide downward, and then rebound and collide under the action of the first spring 41. The high-frequency vibration generated by this cycle can check whether the components on the circuit board are securely installed.

[0025] Embodiment 2: Different from the first embodiment, Figure 1 - Figure 6 , Fig.10 , this embodiment also has the following further contents: A second slide groove 23 is provided on the workbench 1 for installing the clamping assembly. The workbench 1 is fixedly connected to a gantry 3. The gantry 3 is provided with a first slide groove 8. The first slide groove 8 can be used to perform power-on detection according to the position of the power interface on the circuit board. A second telescopic rod 29 is slidably connected to the first slide groove 8. The detection module 30 can be driven to descend through the second telescopic rod 29. A second motor 36 is fixedly installed under the workbench 1. A worm gear 37 is fixedly connected to the transmission shaft of the second motor 36. A worm 25 is fixedly connected between the two second screw rods 24. The worm gear 37 is meshed with the worm 25. When the second motor 36 drives the worm gear 37 to rotate, the worm gear 37 can drive the worm 25 to rotate, thereby rotating the two second screw rods 24.

[0026] The electrical conductivity detection component is used to detect the electrical conductivity of the circuit board. The electrical conductivity detection component consists of a round block 7, a second telescopic rod 29 and a detection module 30. The round block 7 is slidably connected to the gantry 3, and the position of the detection module 30 can be controlled by the round block 7. The second telescopic rod 29 is fixedly installed on the round block 7. The second telescopic rod 29 is slidably connected to the first slide groove 8. The detection module 30 can be driven to descend by the second telescopic rod 29. The detection module 30 is fixedly installed on the output shaft of the second telescopic rod 29. The detection module 30 is provided with a plug-in pin. When the pin on the detection module 30 is inserted into the power-on interface on the circuit board, it can detect whether the circuit board can be powered on.

[0027] The clamping assembly is used to clamp the circuit board during power-on detection. The clamping assembly consists of two second screw rods 24, two second sliders 32 and two clamping plates 6. The two second screw rods 24 are respectively rotatably connected in the second slide groove 23. The threads on the two second screw rods 24 are in opposite directions. In this way, when the two second screw rods 24 rotate in the same direction, the two second sliders 32 can be brought closer to or away from each other. The two second sliders 32 are respectively threadedly connected to the two second screw rods 24, and the two second sliders 32 are respectively slidably connected in the second slide groove 23. The two clamping plates 6 are respectively slidably connected to the workbench 1. The two clamping plates 6 are respectively fixedly connected to the two second sliders 32. When the two second sliders 32 are close to each other, the two clamping plates 6 can be driven to be close to each other, thereby clamping the circuit board.

[0028] In this embodiment, when the detection platform 9 slides to the bottom of the gantry 3, the second motor 36 drives the worm 25 to rotate the worm wheel 37, so that the two second screw rods 24 rotate, so that the two clamping plates 6 clamp the circuit board, and then the round block 7 is controlled to align the plug pins on the detection module 30 with the power interface on the circuit board, and then the second telescopic rod 29 is controlled to insert the plug pins on the detection module 30 into the power interface on the circuit board to detect the power performance of the circuit board, thereby realizing automated detection and avoiding detection errors caused by movement of the circuit board, thereby improving the accuracy and reliability of detection.

[0029] Embodiment three: Reference Figure 1 - Figure 3 , Figure 6 and Fig.10 - Fig.11 , compared with the first embodiment and the second embodiment, in this embodiment: Two legs 2 are fixedly installed under the workbench 1. The workbench 1 is provided with a first notch 31 for facilitating the activities of the recovery component and the flip component. Two first telescopic rods 14 are fixedly installed on the workbench 1. The transmission shafts of the two first telescopic rods 14 are respectively fixedly connected with mounting blocks 15. The two mounting blocks 15 are respectively fixedly connected with mounting plates 16. The mounting blocks 15 are driven by the first telescopic rods 14 to enable the mounting plates 16 to move up and down. Two second notches 18 are provided on the workbench 1. Two connecting rods 19 are respectively slidably connected in the two second notches 18. Second springs 17 are respectively fixedly connected between the baffle 4 and the two connecting rods 19, so that when the connecting rods 19 are squeezed, they will be compressed. The second spring 17 will reset under the action of the rebound force of the second spring 17 after the extrusion force disappears. Two brackets 40 are fixedly connected under the workbench 1. The two brackets 40 are respectively slidably connected with the fourth racks 35. The two fourth racks 35 are respectively fixedly connected with the two connecting rods 19. When the connecting rods 19 are subjected to the extrusion force, the fourth racks 35 will be driven to slide. Two second gears 33 are respectively fixedly connected on both sides of the rotating plate 38. The two second gears 33 are respectively rotatably connected to the inner walls on both sides of the first notch 31. The two second gears 33 are respectively meshed with the two fourth racks 35. When the fourth racks 35 slide, the second gears 33 can be rotated, thereby rotating the rotating plate 38.

[0030] The flip assembly is used to flip the circuit board over to check the back side circuit. The flip assembly consists of a detection platform 9, two first racks 21 and two first gears 27. The two first gears 27 are respectively rotatably connected to the two first sliders 42. The detection platform 9 is fixedly connected between the two first gears 27. When the first gear 27 rotates, it can drive the detection platform 9 to rotate. The two first racks 21 are respectively fixedly connected to the inner walls above the two mounting plates 16. The two first racks 21 are respectively meshed with the two first gears 27, and the two first gears 27 are respectively meshed with the two second racks 22. In this way, when the first gear 27 slides, under the action of the first rack 21 or the second rack 22, the first gear 27 can drive the detection platform 9 to rotate.

[0031] In this embodiment, when the circuit board passes the inspection, the fixing clamp 34 is opened to release the circuit board limit, and the inspection platform 9 continues to slide forward through the first motor 5. When the first gear 27 contacts the first rack 21, the first gear 27 can drive the inspection platform 9 to flip backward. In the initial stage of flipping, the circuit board will temporarily stand on the side plate of the inspection platform 9 due to the obstruction of the side plate of the inspection platform 9 and the effect of friction, and will not fall immediately. When the flip exceeds ninety degrees, the circuit board will fall on the rotating plate 38 with the back facing up. Since the rotating plate 38 is made of sponge material, it will not cause damage to the components on the front of the circuit board. Then the inspection platform 9 continues to move forward driven by the first motor 5. In this process, the inspection platform 9 will press the connecting rod 19, causing the fourth rack 35 to slide. The sliding of the fourth rack 35 drives the second gear 33 meshing therewith to rotate, and the second gear 33 is connected to the rotating plate 38 in a certain connection manner, thereby realizing the rotation of the rotating plate 38, and finally transferring the turned-over circuit board to the workbench 1, so that the staff can inspect the back of the circuit board, promptly discover and deal with possible scratches, wear and tear on the back line, and further improve the quality and reliability of the circuit board.

[0032] Embodiment 4: Reference Figure 1 - Figure 2 , Figure 6 - Figure 7 and Fig.10 - Fig.11 , compared with the first embodiment, the second embodiment and the third embodiment, in this embodiment: A connecting frame 26 is fixedly connected to the bottom of the two mounting plates 16, and an arc-shaped plate 39 is fixedly connected to the bottom of the connecting frame 26. In this way, when the first telescopic rod 14 rises, it can drive the arc-shaped plate 39 to rise, so that the circuit board on the rotating plate 38 can smoothly slide into the collection box 20. The arc surface of the arc-shaped plate 39 fits with one end of the rotating plate 38, so that the rotating plate 38 will not be limited when rotating.

[0033] The recycling component is used to classify unqualified circuit boards. The recycling component consists of a rotating plate 38, two second racks 22 and a collection box 20. The rotating plate 38 is arranged in the first slot 31. The two second racks 22 are respectively fixedly connected to the inner walls below the two mounting plates 16. Since the second racks 22 are slightly shorter, they can drive the first gear 27 to rotate at a small angle, thereby making the test platform 9 slightly tilted. The collection box 20 is fixedly connected between the two legs 2 to recycle circuit boards that fail the test.

[0034] In this embodiment, when the circuit board fails the inspection, the first telescopic rod 14 drives the mounting plate 16 to move upward, so that the second rack 22 can contact the first gear 27, and at the same time, the mounting plate 16 drives the arc plate 39 to move upward through the connecting frame 26, so that the circuit board will not be blocked when it slides into the collection box 20. Subsequently, when the first gear 27 on the testing table 9 touches the second rack 22, the testing table 9 can be tilted, so that the circuit board on the testing table 9 slides onto the rotating plate 38, and then slides from the rotating plate 38 into the collection box 20, so that the unqualified circuit boards are separated separately, which is convenient for subsequent unified processing and recycling, and unqualified circuit boards are prevented from being mixed into qualified products, thereby ensuring the overall quality of the products.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A circuit board component detection device, characterized in that: It comprises a workbench (1), an electrical conductivity detection component, a recovery component, a flipping component, a stability detection component and a clamping component; Two first telescopic rods (14) are fixedly mounted on the workbench (1), the transmission shafts of the two first telescopic rods (14) are respectively fixedly connected to mounting blocks (15), the two mounting blocks (15) are respectively fixedly connected to mounting plates (16), and a second slide groove (23) is provided on the workbench (1); The electrical conductivity detection component is used to detect the electrical conductivity of the circuit board; The recycling component is used to classify unqualified circuit boards; The flipping assembly is used to flip the circuit board over to inspect the circuits; The stability detection component is used to detect the installation stability of components on the circuit board; The clamping assembly is used to clamp the circuit board during power-on detection.

2. A circuit board component detection device according to claim 1, characterized in that: The workbench (1) is fixedly connected to a gantry (3), the gantry (3) is provided with a first slide groove (8), the first slide groove (8) is slidably connected to a second telescopic rod (29), two legs (2) are fixedly installed below the workbench (1), the workbench (1) is provided with a first notch (31), two baffles (4) are fixedly connected to both sides of the workbench (1), a first screw rod (11) is rotatably connected between the two baffles (4), a sliding rod (10) is provided on one side of the first screw rod (11) and is fixedly connected between the two baffles (4), and a first slider (42) is slidably connected to the first screw rod (11) and the sliding rod (10), respectively.

3. A circuit board component detection device according to claim 2, characterized in that: The electrical conductivity detection component is composed of a round block (7), a second telescopic rod (29) and a detection module (30); the round block (7) is slidably connected to the gantry (3); the second telescopic rod (29) is fixedly mounted on the round block (7); the second telescopic rod (29) is slidably connected to the first slide groove (8); the detection module (30) is fixedly mounted on the output shaft of the second telescopic rod (29); and the detection module (30) is provided with a plug-in pin.

4. A circuit board component detection device according to claim 2, characterized in that: The recycling assembly is composed of a rotating plate (38), two second racks (22) and a collection box (20); the rotating plate (38) is arranged in the first notch (31); the rotating plate (38) is made of a sponge material; the two second racks (22) are respectively fixedly connected to the inner walls below the two mounting plates (16); and the collection box (20) is fixedly connected between the two legs (2).

5. A circuit board component detection device according to claim 4, characterized in that: The turning assembly is composed of a detection platform (9), two first racks (21) and two first gears (27); the two first gears (27) are respectively rotatably connected to two first sliders (42); the detection platform (9) is fixedly connected between the two first gears (27); the two first racks (21) are respectively fixedly connected to the upper inner walls of two mounting plates (16); the two first racks (21) are respectively meshed with the two first gears (27); and the two first gears (27) are respectively meshed with the two second racks (22).

6. A circuit board component detection device according to claim 5, characterized in that: The stability detection component is composed of two installation boxes (12), two third racks (13), two groups of saw teeth (28) and a plurality of first springs (41). The two installation boxes (12) are respectively fixedly connected to the workbench (1), the two third racks (13) are respectively slidably connected in the installation boxes (12), one end of the plurality of first springs (41) is respectively fixedly connected to the workbench (1), and the other end is respectively fixedly connected to the two third racks (13), the two groups of saw teeth (28) are respectively fixedly connected under the detection table (9), and the two groups of saw teeth (28) are respectively meshed with the two third racks (13).

7. A circuit board component detection device according to claim 1, characterized in that: The clamping assembly is composed of two second screw rods (24), two second sliders (32) and two clamping plates (6); the two second screw rods (24) are respectively rotatably connected in the second slide groove (23); the two second sliders (32) are respectively threadedly connected to the two second screw rods (24); the two second sliders (32) are respectively slidably connected in the second slide groove (23); the two clamping plates (6) are respectively slidably connected to the workbench (1); and the two clamping plates (6) are respectively fixedly connected to the two second sliders (32).

8. A circuit board component detection device according to claim 2, characterized in that: The workbench (1) is provided with two second notches (18), two connecting rods (19) are slidably connected in the two second notches (18), second springs (17) are fixedly connected between the baffle (4) and the two connecting rods (19), two brackets (40) are fixedly connected below the workbench (1), fourth racks (35) are slidably connected to the two brackets (40), and the two fourth racks (35) are fixedly connected to the two connecting rods (19), respectively.

9. A circuit board component detection device according to claim 8, characterized in that: Two second gears (33) are fixedly connected to both sides of the rotating plate (38), and the two second gears (33) are rotatably connected to the inner walls on both sides of the first notch (31), and the two second gears (33) are meshed with two fourth racks (35) respectively. A connecting frame (26) is fixedly connected below the two mounting plates (16), and an arc plate (39) is fixedly connected below the connecting frame (26), and the arc surface of the arc plate (39) is in contact with one end of the rotating plate (38).

10. A circuit board component detection device according to claim 7, characterized in that: A fixing clamp (34) is fixedly mounted on the side plate of the detection table (9); a worm (25) is fixedly connected between the two second screw rods (24); a first motor (5) is fixedly mounted on the baffle plate (4); a transmission shaft of the first motor (5) is fixedly connected to one end of the first screw rod (11); a second motor (36) is fixedly mounted below the workbench (1); a worm wheel (37) is fixedly connected to the transmission shaft of the second motor (36); and the worm wheel (37) is meshingly connected to the worm wheel (25).

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