Electronic component cooling detection mechanism for circuit board production

Abstract

The invention discloses an electronic component cooling detection mechanism for circuit board production, which is applied to the field of circuit board detection, combines a detection box with a conveyor, and drives a sealing door of a door control assembly to be in contact with a conveying belt of the conveyor through a driving assembly and a linkage assembly to form a sealed space. The cooling detection of the circuit board and the electronic components thereof can be realized in the space, the cooling detection is displayed through the control screen, the requirements of active feeding before the detection of the circuit board and the electronic components thereof, closed environment in the detection process and active discharging after the detection are met, manual participation, feeding and discharging are not needed in the whole process, and the detection efficiency can be improved. The push-and-pull assembly is arranged to control the linkage assembly to reciprocate up and down and is matched with the driving assembly for driving, on-off operation can be conducted on a first gear of the door control assembly, position exchange can be conducted on the detection assembly and the detection camera at the bottom of the position control assembly, and the single driving device achieves double functions.

Description

Technical Field

[0001] The invention relates to the field of circuit board detection, and in particular to an electronic component cooling detection mechanism for circuit board production. Background Art

[0002] At present, after the installation of circuit boards and electronic components, cooling tests are required. The cooling tests mainly test the performance of circuit boards and electronic components in high and low temperature environments to evaluate their reliability and durability. This test simulates the temperature changes in the actual use environment to check the electrical performance, structure and durability of the circuit board under different temperature conditions.

[0003] At present, when using the electronic component cooling detection mechanism for circuit board production, it is necessary to manually place and take out the circuit board to be cooled and tested and the electronic components installed thereon. In order to ensure the accuracy of the detection, the detection environment needs to be sealed. The existing cooling detection mechanism is installed inside the cabinet, so there are defects such as time-consuming and cumbersome placement and taking, which reduces the detection efficiency. In order to solve the above problems, we propose an electronic component cooling detection mechanism for circuit board production. Summary of the invention

[0004] The object of the present invention is to provide an electronic component cooling detection mechanism for circuit board production, which has the advantage of being able to actively load circuit boards and their electronic components before detection and unload them after detection.

[0005] The above technical purpose of the present invention is achieved through the following technical solutions: an electronic component cooling detection mechanism for circuit board production, including a conveyor, a detection box is installed on the top of the conveyor, door control components are provided on both sides of the detection box, a driving component, a linkage component and a push-pull component are provided inside the detection box, and a position control component is also provided inside the detection box, a detection component and a detection camera are respectively provided at the bottom of the position control component, and a limit component is provided on the top of the position control component; the bottom of the detection box is in contact with the conveyor belt of the conveyor; and the conveyor belt is made of silicone, which can withstand high and low temperatures and can keep warm.

[0006] By adopting the above technical scheme, by setting the position control component, the detection component, the detection camera, the drive component and the linkage component, the electrical performance and material status of the circuit board and the electronic components can be tested synchronously; by setting the drive component, the linkage component and the door control component, the window can be closed, and the drive component serves as a dual-function drive without the need for manual switching; by setting the conveyor, the detection box and the structure and door control component inside the detection box, the detection environment can be closed, and the circuit board and its electronic components can be loaded before detection and unloaded actively after detection without manual operation.

[0007] The present invention is further configured as follows: the door control assembly comprises a sealed door, the sealed door is internally threadedly connected with an adjusting screw, a pulley 1 is fixedly sleeved on the surface of the adjusting screw, the pulley 1 is connected with a pulley 2 via a belt transmission, a rotating rod is fixedly sleeved inside the pulley 2, the rotating rod is rotatably connected to a detection box via a bearing, a gear 1 is fixedly sleeved on the surface of the rotating rod, and the adjusting screw is rotatably connected to the detection box via a bearing; Windows are provided on both sides of the detection box, and the two windows correspond to the two sealed doors respectively; The sealing door is in contact with the conveyor belt and the detection box respectively through sealing strips.

[0008] The above technical solution is adopted, through the setting of the door control component, for closing the window and opening the window, so as to facilitate the loading of the circuit board and its electronic components before the inspection, the closing during the inspection and the unloading after the inspection; Specifically, pulley two and pulley one are connected by belt transmission. When pulley two rotates, pulley two drives pulley one to rotate through the belt, and pulley one drives the adjusting screw to rotate. The adjusting screw rotates counterclockwise to drive the sealing door to move upward. At this time, the window opens and the material can pass through; the adjusting screw rotates clockwise to drive the sealing door down and make the bottom of the sealing door contact with the conveyor belt. At this time, the sealing door closes the window, and the material detection environment inside the detection box is closed.

[0009] The rotation of pulley 2 needs to drive the rotating rod meshing with it to rotate through gear 3; The working principle of the two gating components is the same, so I will not go into details here.

[0010] It should be noted that the sealing door is in contact with the conveyor belt and the detection box through the sealing strip. Therefore, after the sealing door is lowered, it and the sealing strip can achieve a seal with the conveyor belt, while the side of the sealing door close to the detection box forms a seal with the detection box through the sealing strip.

[0011] The present invention is further configured as follows: the driving assembly comprises a driving motor, the driving motor is installed through a bracket and a detection box, and a second gear is fixedly sleeved on an output end of the driving motor.

[0012] The above technical solution is adopted to drive the linkage component to rotate through the setting of the driving component; The specific driving motor can control its output end to rotate clockwise and counterclockwise through the controller. The rotation of the output end of the driving motor will drive gear two to rotate, and the rotation of gear two will drive gear four to rotate. The rotation of gear four will drive the movable rod and gears three and five on its surface to rotate.

[0013] The present invention is further configured as follows: the linkage assembly comprises a movable rod, and the surfaces of the movable rod are respectively fixedly sleeved with gear three, gear four and gear five.

[0014] The above technical solution is adopted, through the setting of the linkage component, it is used to switch between gear one and gear six, and can be used to drive gear one and gear six to rotate respectively; Specifically, gear three is used to mesh with two gears one, gear four is used to mesh with gear two, and gear five is used to mesh with gear six; The movable rod is controlled to move up and down by a push-pull assembly; When the movable rod is upward, gear five on the surface of the movable rod will separate from gear six, gear three on the surface of the movable rod will mesh with gear one, and gear four will be in meshing state with gear two; When the movable rod is downward, gear five on the surface of the movable rod will mesh with gear six, gear three on the surface of the movable rod will separate from gear one, and gear four will still be in meshing state with gear two.

[0015] The present invention is further configured as follows: the push-pull assembly includes an electric cylinder 1, a fixed plate is fixedly installed at the output end of the electric cylinder 1, the interior of the fixed plate is rotatably connected to the movable rod through a bearing, and the bottom end of the electric cylinder 1 is fixedly connected to the detection box.

[0016] The above technical solution is used to control the movable rod to move upward or downward through the setting of the push-pull assembly, and is also used to drive the movable tooth plate to move upward or downward; Specifically, when the electric cylinder is started, its output end will push the fixed plate upward, and the fixed plate is connected to the rotation through the bearing and the movable rod. When the fixed plate moves upward, it will drive the movable rod upward, and the movable rod will drive the gear three, gear four and gear five fixed on its surface to move as a whole; the movable rod drives the gear three and the two gears one to mesh upward, and under the drive of the driving component, the linkage component can realize the opening and closing of the two sealed doors; When the electric cylinder is started, its output end pulls the fixed plate to reset, and the movable rod follows the reset of gear five on its surface and meshes with gear six. At this time, the movable rod is driven to rotate through the linkage component, and gear five on the surface of the movable rod drives gear six to rotate. The rotation of gear six can drive the rotating rod inside it and the mounting seat at the bottom of the rotating rod to rotate. The position of the detection component and the detection camera can be exchanged by rotating the mounting seat, so that the detection component and the detection camera can complete the overall detection of the circuit board and the electronic components on its surface.

[0017] The present invention is further configured as follows: the position control assembly includes a mounting seat, a rotating rod is fixedly connected to the top of the mounting seat, the rotating rod is rotatably connected to the detection box through a bearing, a gear 6 is fixedly sleeved on the surface of the mounting seat, two sliders 1 are fixedly connected to the top of the mounting seat, and a circular groove slidably connected to the slider 1 is provided on the top of the inner cavity of the detection box; Two electric guide rails 1 are installed at the bottom of the mounting seat, and the electric guide rail 1 is fixedly installed with an electric guide rail 2 through a slide.

[0018] The above technical solution is adopted to support the detection component and the detection camera through the setting of the position control component, and to drive the detection component and the detection camera to change their positions; In order to avoid blind spots during the inspection process, the inspection component and the inspection camera are each equipped with an electric guide rail 1 and an electric guide rail 2, and the circuit board and its electronic components are fully inspected by rotating and alternating the positions of the inspection component and the inspection camera; The two electric guide rails 1 are used to drive the two electric guide rails 2 to reciprocate back and forth; the two electric guide rails 2 are respectively used to drive the detection component and the detection camera to reciprocate left and right.

[0019] The present invention is further configured as follows: the detection assembly includes an installation box, the top of the installation box is slidably connected to the second electric guide rail via a slide table; the top of the detection camera is slidably connected to another second electric guide rail via a slide table; Two probes are installed inside the installation box, and the two probes are respectively a detection probe and a power-on probe; two electric cylinders 2 are fixedly sleeved inside the installation box, and the output end of the electric cylinder 2 is slidably connected to the probe through an insulating sleeve, and an electric cylinder 3 is fixedly installed on the surface of the electric cylinder 2, and the top of the electric cylinder 3 is slidably connected to a connecting rod through a sleeve, and one end of the connecting rod is fixedly connected to the probe through a fixing ring; Two positioning overhead cameras are installed at the bottom of the installation box.

[0020] The above technical solution is used to detect the electrical performance of the circuit board by setting the detection component; There are two probes, one probe is used to provide power to the circuit board so as to cooperate with the other probe to contact the circuit board to perform electrical performance detection of the circuit board in a powered state; The two electric cylinders 2 are used to adjust the positions of the two probes, and the two electric cylinders 3 are used to control the two probes to move up and down. Two positioning overhead cameras are used to collect circuit board images to facilitate the positioning of the two probes; The test results of the probe on the performance of the circuit board wires will be displayed on the control screen; Probe detection of circuit board electrical performance is currently an existing technology, and its detection principle will not be described in detail here; The inspection camera is an automatic optical inspection (AOI) camera, which uses a high-resolution camera to check for various defects on the circuit board, including short circuits, open circuits, missing, incorrect or misaligned components.

[0021] The working principle of AOI cameras is based on high-resolution camera technology that can capture images of circuit boards and analyze these images through software algorithms to detect defects.

[0022] The present invention is further configured as follows: the limit assembly includes a gear seven, the gear seven is fixedly connected to the detection box through a bracket, the gear seven is respectively meshed with a positioning tooth plate and a movable tooth plate, and the top of the movable tooth plate is fixedly connected to the fixed plate; A sliding groove is provided on the side of the movable tooth plate and the positioning tooth plate which are away from each other, and a sliding block 2 which is fixedly connected to the detection box is slidably connected inside the sliding groove.

[0023] The above technical solution is adopted, through the setting of the limit assembly, to realize the downward positioning of the position control assembly when the push-pull assembly pushes the movable rod to rise; Specifically, when the electric cylinder is started, its output end pushes the fixed plate to drive the movable rod to rise, and at the same time the fixed plate will also drive the movable tooth plate to rise. When the movable tooth plate rises, the gear seven engaged with it will rotate and drive the positioning tooth plate engaged with it to descend. When the gear three on the surface of the movable rod is completely engaged with the two gears one, the bottom of the positioning tooth plate will completely contact the mounting seat, thereby realizing the positioning of the mounting seat through the downward pressure of the positioning tooth plate.

[0024] In summary, the present invention has the following beneficial effects: The present invention combines a detection box and a conveyor, and drives the sealing door of a door control component to contact the conveyor belt of the conveyor through a driving component and a linkage component to form a sealed space. The cooling detection of the circuit board and the electronic components thereof can be realized in the space, and the display is made through a control screen. The present invention also satisfies the requirements of active loading before the detection of the circuit board and the electronic components thereof, a closed environment during the detection process, and active unloading after the detection. No manual intervention is required in the whole process for loading and unloading, and the detection efficiency can be improved.

[0025] By setting a push-pull component to control the up and down reciprocating movement of the linkage component and cooperating with the drive component for driving, the switch operation of gear 1 of the door control component and the position exchange of the detection component and the detection camera at the bottom of the position control component can be realized, and a single drive device can realize dual functions; the dual electric guide rails 2 are used to drive the detection component and the detection camera for synchronous detection respectively. With the cooperation of the drive component, the linkage component and the push-pull component, the positions of the detection component and the detection camera are exchanged, which can avoid the detection blind spots caused by the insufficient length of the electric guide rail 2 and achieve higher detection completeness. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the back side of the structure of the present invention; Figure 2 is a front sectional view of the detection box of the present invention; Figure 3 The present invention Figure 2 A magnified view of the local structure at center A; Figure 4 The present invention Figure 2 A magnified view of the local structure at B in the middle; Figure 5 It is a schematic diagram of the connection between the mounting base, the electric guide rail 1 and the electric guide rail 2 of the present invention; Figure 6 is a schematic diagram of a push-pull assembly of the present invention; Figure 7 It is a front schematic diagram of the structure of the present invention.

[0027] Reference numerals: 1. conveyor; 2. detection box; 3. Door control assembly; 31. Sealing door; 32. Adjusting screw; 33. Pulley 1; 34. Pulley 2; 35. Rotating rod; 36. Gear 1; 4. Driving assembly; 41. Driving motor; 42. Gear 2; 5. Linkage assembly; 51. Movable rod; 52. Gear three; 53. Gear four; 54. Gear five; 6. Push-pull assembly; 61. Electric cylinder 1; 62. Fixed plate; 7. Position control assembly; 71. Mounting seat; 72. Rotating rod; 73. Gear six; 74. Sliding block one; 75. Circular slideway; 76. Electric guide rail one; 77. Electric guide rail two; 8. Detection assembly; 81. Installation box; 82. Probe; 83. Electric cylinder 2; 84. Electric cylinder 3; 85. Connecting rod; 86. Positioning overhead camera; 9. Detection camera; 10. Limiting assembly; 101. Gear seven; 102. Positioning tooth plate; 103. Movable tooth plate; 104. Slide; 105. Slider two; 11. Window; 12. Heating device; 13. Refrigeration device; 14. Pressure relief valve; 15. Temperature sensor; 16. Control panel. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0029] Embodiment 1: refer to Figure 1-Figure 7, an electronic component cooling detection mechanism for circuit board production, comprising a conveyor 1, a detection box 2 is installed on the top of the conveyor 1, a door control component 3 is arranged on both sides of the detection box 2, a driving component 4, a linkage component 5 and a push-pull component 6 are arranged inside the detection box 2, and a position control component 7 is also arranged inside the detection box 2, and a detection component 8 and a detection camera 9 are respectively arranged at the bottom of the position control component 7, and a limit component 10 is arranged on the top of the position control component 7; the bottom of the detection box 2 is in contact with the conveyor belt of the conveyor 1; and the material of the conveyor belt is silica gel, which can withstand high and low temperatures and can keep heat; by combining the detection box 2 and the conveyor 1, the sealing door 31 of the door control component 3 is driven by the driving component 4 and the linkage component 5 to contact the conveyor belt of the conveyor 1, so as to form a sealed space, in which the cooling detection of the circuit board and its electronic components can be realized, and the display is through the control screen 16, and the active loading before the detection of the circuit board and its electronic components, the closed environment during the detection process, and the active unloading after the detection are satisfied, and no manual participation is required in the whole process, and the loading and unloading can improve the detection efficiency. By setting a push-pull component 6 to control the up and down reciprocating movement of the linkage component 5 and cooperating with the driving component 4 for driving, the gear 36 of the door control component 3 can be switched and the detection component 8 and the detection camera 9 at the bottom of the position control component 7 can be exchanged, and a single driving device can realize dual functions; the dual electric guide rails 2 77 are used to drive the detection component 8 and the detection camera 9 to perform synchronous detection respectively. With the cooperation of the driving component 4, the linkage component 5 and the push-pull component 6, the positions of the detection component 8 and the detection camera 9 are exchanged, which can avoid the detection blind spots caused by the insufficient length of the electric guide rails 2 77 and achieve higher detection completeness.

[0030] Furthermore, the door control component 3 includes a sealed door 31, the sealed door 31 has an internal thread connected to an adjusting screw 32, the surface of the adjusting screw 32 is fixedly sleeved with a pulley 1 33, the pulley 1 33 is connected to a pulley 2 34 through a belt transmission, the pulley 2 34 has a rotating rod 35 fixedly sleeved inside, the rotating rod 35 is rotatably connected to the detection box 2 through a bearing, the surface of the rotating rod 35 is fixedly sleeved with a gear 1 36, and the adjusting screw 32 is rotatably connected to the detection box 2 through a bearing; windows 11 are provided on both sides of the detection box 2, and the two windows 11 correspond to the two sealed doors 31 respectively; the sealed doors 31 are in contact with the conveyor belt and the detection box 2 respectively through sealing strips; through the setting of the door control component 3, it is convenient to close the window 11 and open the window 11, so as to facilitate the circuit board The feeding before the electronic component inspection, the sealing during the inspection and the unloading after the inspection; specifically, the pulley 2 34 and the pulley 1 33 are connected by a belt transmission. When the pulley 2 34 rotates, the pulley 2 34 drives the pulley 1 33 to rotate through the belt, and the pulley 1 33 drives the adjusting screw 32 to rotate. The adjusting screw 32 rotates counterclockwise to drive the sealing door 31 to move upward, at which time the window 11 is opened and the material can pass through; the adjusting screw 32 rotates clockwise to drive the sealing door 31 to descend and make the bottom of the sealing door 31 contact with the conveyor belt. At this time, the sealing door 31 closes the window 11, and the material inspection environment inside the inspection box 2 is closed; and the rotation of the pulley 2 34 needs to be driven by the gear 3 52 to rotate and drive the rotating rod 35 meshing with it to rotate; The working principles of the two door control components 3 are the same and will not be elaborated here.

[0031] It should be noted that the sealing door 31 is in contact with the conveyor belt and the detection box 2 through the sealing strip. Therefore, after the sealing door 31 is lowered, its sealing strip can achieve sealing with the conveyor belt, while the side of the sealing door 31 close to the detection box 2 forms a seal with the detection box 2 through the sealing strip.

[0032] Furthermore, the driving component 4 includes a driving motor 41, which is installed through a bracket and a detection box 2, and a gear 2 42 is fixedly sleeved on the output end of the driving motor 41; through the setting of the driving component 4, it is used to drive the linkage component 5 to rotate; specifically, the driving motor 41 can control its output end to rotate clockwise and counterclockwise through a controller, and the rotation of the output end of the driving motor 41 will drive the gear 2 42 to rotate, and the rotation of the gear 2 42 will drive the gear 4 53 to rotate, and the rotation of the gear 4 53 will drive the movable rod 51 and the gear 3 52 and the gear 5 54 on its surface to rotate.

[0033] Furthermore, the linkage assembly 5 includes a movable rod 51, and the surface of the movable rod 51 is respectively fixedly sleeved with a gear 3 52, a gear 4 53 and a gear 54; through the setting of the linkage assembly 5, it is used to switch between the gear 1 36 and the gear 6 73, and can be used to drive the gear 1 36 and the gear 6 73 to rotate respectively; specifically, the gear 3 52 is used to mesh with the two gears 1 36, the gear 4 53 is used to mesh with the gear 2 42, and the gear 5 54 is used to mesh with the gear 6 73; the movable rod 51 is connected to the movable rod 51 through the movable rod 51. The movable rod 51 is controlled to move up and down by the push-pull assembly 6; when the movable rod 51 is upward, the gear five 54 on the surface of the movable rod 51 will be separated from the gear six 73, the gear three 52 on the surface of the movable rod 51 will be meshed with the gear one 36, and the gear four 53 will be in a meshing state with the gear two 42; when the movable rod 51 is downward, the gear five 54 on the surface of the movable rod 51 will be meshed with the gear six 73, the gear three 52 on the surface of the movable rod 51 will be separated from the gear one 36, and the gear four 53 will still be in a meshing state with the gear two 42.

[0034] Furthermore, the push-pull assembly 6 includes an electric cylinder 61, and a fixed plate 62 is fixedly installed at the output end of the electric cylinder 61. The interior of the fixed plate 62 is rotatably connected to the movable rod 51 through a bearing, and the bottom end of the electric cylinder 61 is fixedly connected to the detection box 2; through the setting of the push-pull assembly 6, it is used to control the movable rod 51 to move upward or downward, and is also used to drive the movable toothed plate 103 to move upward or downward; specifically, when the electric cylinder 61 is started, its output end will push the fixed plate 62 upward, and the fixed plate 62 is rotatably connected to the movable rod 51 through a bearing, and when the fixed plate 62 moves upward, it will drive the movable rod 51 upward, and the movable rod 51 moves upward, which drives the gear three 52, gear four 53 and gear five 54 fixedly connected on its surface to move as a whole; the gear three is driven upward by the movable rod 51 52 is meshed with two gears 36. Under the drive of the driving component 4, the linkage component 5 can realize the opening and closing of the two sealing doors 31. When the electric cylinder 61 is started, its output end pulls the fixed plate 62 to reset, and the movable rod 51 follows the reset of the gear 54 on its surface and meshes with the gear 6 73. At this time, the movable rod 51 is driven to rotate by the linkage component 5, and the gear 54 on the surface of the movable rod 51 drives the gear 6 73 to rotate. The rotation of the gear 6 73 can drive the rotating rod 72 inside it and the mounting seat 71 at the bottom of the rotating rod 72 to rotate. The position of the detection component 8 and the detection camera 9 can be exchanged by rotating the mounting seat 71, so as to facilitate the detection component 8 and the detection camera 9 to complete the overall detection of the circuit board and the electronic components on its surface.

[0035] Further, the position control component 7 includes a mounting seat 71, the top of which is fixedly connected with a rotating rod 72, the rotating rod 72 is rotatably connected to the detection box 2 through a bearing, a gear 6 73 is fixedly sleeved on the surface of the mounting seat 71, two sliders 74 are fixedly connected to the top of the mounting seat 71, and a circular groove 75 slidably connected to the slider 74 is provided at the top of the inner cavity of the detection box 2; two electric guide rails 76 are installed at the bottom of the mounting seat 71, and the electric guide rail 76 is fixedly installed with an electric guide rail 2 77 through a slide table; through the setting of the position control component 7, It is used to support the detection component 8 and the detection camera 9, and to drive the detection component 8 and the detection camera 9 to change their positions; in order to avoid blind spots in the detection process, the detection component 8 and the detection camera 9 are each equipped with an electric guide rail 1 76 and an electric guide rail 2 77, and the comprehensive detection of the circuit board and its electronic components can be achieved by rotating and alternating the positions of the detection component 8 and the detection camera 9; the two electric guide rails 1 76 are used to drive the two electric guide rails 2 77 to reciprocate back and forth; the two electric guide rails 2 77 are respectively used to drive the detection component 8 and the detection camera 9 to reciprocate left and right.

[0036] Further, the detection assembly 8 includes an installation box 81, the top of which is slidably connected to the electric guide rail 77 via a slide; the top of the detection camera 9 is slidably connected to another electric guide rail 77 via a slide; Two probes 82 are installed inside the installation box 81, and the two probes 82 are detection probes and power-on probes respectively; two electric cylinders 83 are fixedly sleeved inside the installation box 81, and the output end of the electric cylinder 83 is slidably connected to the probe 82 through an insulating sleeve, and an electric cylinder 3 84 is fixedly installed on the surface of the electric cylinder 83, and the top of the electric cylinder 84 is slidably connected to a connecting rod 85 through a sleeve ring, and one end of the connecting rod 85 is fixedly connected to the probe 82 through a fixing ring; two positioning overhead cameras 86 are installed at the bottom of the installation box 81; through the setting of the detection component 8, it is used to perform electrical performance detection on the circuit board; the number of probes 82 is two, and one probe 82 is used to provide power to the circuit board so as to cooperate with the other probe 82 to contact the circuit board to conduct power on the circuit board Electrical state and electrical performance detection; two electric cylinders 83 are used to adjust the positions of two probes 82, and two electric cylinders 84 are used to control the two probes 82 to move up and down; two positioning overhead cameras 86 are used to collect circuit board images, which is convenient for locating the detection positions of the two probes 82; the positioning overhead camera 86 is specifically a German COGNEX Cognex industrial camera; the detection results of the circuit board wire performance by the probe 82 will be displayed through the control screen 16; the probe detection of the circuit board electrical performance is the current existing technology, and its detection principle is not described in detail here; and the detection camera 9 is an automatic optical inspection AOI camera, which uses a high-resolution camera to check various defects on the circuit board, including short circuits, open circuits, missing, incorrect or misaligned components. The working principle of the AOI camera is based on high-resolution camera technology, which can capture images on the circuit board and analyze these images through software algorithms to detect defects.

[0037] Furthermore, the limiting assembly 10 includes a gear 7 101, which is fixedly connected to the detection box 2 through a bracket, and the gear 7 101 is respectively meshed with a positioning tooth plate 102 and a movable tooth plate 103, and the top of the movable tooth plate 103 is fixedly connected to the fixed plate 62; a sliding groove 104 is provided on the side away from each other of the movable tooth plate 103 and the positioning tooth plate 102, and a slider 105 fixedly connected to the detection box 2 is slidably connected inside the sliding groove 104; through the setting of the limiting assembly 10, it is used to realize the alignment when the push-pull assembly 6 pushes the movable rod 51 to rise The positioning control component 7 is pressed down to position; specifically, the electric cylinder 1 61 is started and its output end pushes the fixed plate 62 to drive the movable rod 51 to rise, and at the same time the fixed plate 62 will also drive the movable tooth plate 103 to rise, and when the movable tooth plate 103 rises, the gear 7 101 meshing with it will rotate and drive the positioning tooth plate 102 meshing with it to descend, and when the gear 3 52 on the surface of the movable rod 51 is completely meshed with the two gears 1 36, the bottom of the positioning tooth plate 102 will completely contact the mounting seat 71, thereby realizing the positioning of the mounting seat 71 through the downward pressure of the positioning tooth plate 102.

[0038] Furthermore, the back of the detection box 2 is connected to a heating device 12 and a refrigeration device 13 respectively, a temperature sensor 15 and a pressure relief valve 14 are also installed on the back of the detection box 2, and a control panel 16 is installed on the front of the detection box 2; the heating device 12 is used to generate heat and input it into the interior of the detection box 2 to change the ambient temperature of the detection box 2; the refrigeration device 13 is used to generate cold and input it into the interior of the detection box 2 to change the internal temperature environment of the detection box 2; the heating device 12 adopts a quartz heater of one of the models GYY, GSX, and GSH, and the refrigeration device 13 is a German SECON liquid refrigerator: model HELIOS HK1; the heating and cooling technologies of the heating device 12 and the refrigeration device 13 are both existing technologies and will not be elaborated here; the temperature sensor 15 is used to monitor the temperature inside the detection box 2 and display the temperature information through the control panel 16, and the pressure relief valve 14 is used to discharge the internal pressure of the detection box 2; the control panel 16 is used to control the operation of each motor, electric cylinder, heating, and refrigeration device of the mechanism, and to display monitoring data and temperature data.

[0039] Working principle: When in use, the conveyor 1 is used to receive the circuit board on which the electronic components are installed, and the circuit board is sent into the interior of the detection box 2 through the conveyor 1.

[0040] The electric cylinder 1 61 is started, and its output end pushes the fixed plate 62 upward, and drives the movable rod 51 and its surface gear 3 52, gear 4 53 and gear 5 54 upward through the fixed plate 62. The gear 3 52 will mesh with the two gears 1 36 respectively, and drive the output end of the driving motor 41 to rotate. The output end of the driving motor 41 drives the gear 2 42 to rotate, the gear 2 42 drives the gear 4 53 to rotate, the gear 4 53 drives the movable rod 51 to rotate, the movable rod 51 drives the gear 3 52 to rotate, the gear 3 52 drives the two gears 1 36 to rotate, and the two rotating rods 35 are driven to rotate by the rotation of the two gears 1 36. The two rotating rods 35 respectively drive the two pulleys 2 34 to rotate, the two pulleys 2 34 rotate through the belt transmission two pulleys 1 33, and the two pulleys 1 33 respectively drive the two adjusting screws 32 to rotate; the two sealing doors 31 can be driven to descend by the clockwise rotation of the two adjusting screws 32, and contact with the conveyor belt of the conveyor 1, so that a seal is formed between the detection box 2 and the conveyor belt of the conveyor 1.

[0041] Then the heating device 12 starts to inject heat into the interior of the detection box 2, and the temperature sensor 15 detects the internal temperature of the detection box 2. When the high temperature requirement is reached, the two positioning overhead cameras 86 respectively locate the power-on position and the detection position of the circuit board (see Figure 4) The left probe 82 is a detection probe, and the right probe 82 is a power-on probe; after the right probe 82 is positioned at the power-on position by positioning the overhead camera 86, the right electric cylinder 2 83 is started to retract or extend through its conveying end to adjust the position of the right probe 82. After the adjustment is completed, the right electric cylinder 3 84 is started, and the connecting rod 85 and the probe 82 are pulled down to contact the circuit board through the output end of the electric cylinder 3 84, and the circuit board is powered on; Then the left side gear four 53 starts to adjust the position of the left side probe 82, and the left side electric cylinder three 84 starts to pull the left side probe 82 down to contact the circuit board to detect the operating electrical performance of the electronic components on the circuit board; the test results are displayed through the control screen 16; and the detection camera 9 directly collects the physical status information of the circuit board for comparison, and the comparison results are also displayed through the control screen 16.

[0042] To facilitate detection of different positions of the circuit board, the two electric guide rails 1 76 can respectively drive the two electric guide rails 2 77 to adjust the front and rear displacements, and the two electric guide rails 2 77 can respectively drive the detection assembly 8 and the detection camera 9 to perform left and right displacement detection.

[0043] To facilitate low-temperature detection, pressure relief can be performed through the pressure relief valve 14, and by turning off the heating device 12 and starting the refrigeration device 13, cold energy is injected into the detection box 2 to reduce the temperature environment inside the detection box 2 to form a low-temperature environment (it should be noted that the refrigeration device 13 and the heating device 12 are connected to the detection box 2 through a pipeline, and both pipelines are provided with a one-way valve. The flow direction of the one-way valve is the input direction of heat or cold energy from the heating device 12 and the refrigeration device 13 to the detection box 2, and the heat or cold energy inside the detection box 2 cannot pass through the one-way valve back to the heating device 12 or the refrigeration device 13).

[0044] After the electric guide rail 1 76 completes one side, the electric cylinder 1 61 starts its output end to pull the fixed plate 62 and the movable rod 51 down. The movable rod 51 descends and the gear 5 54 on its surface meshes with the gear 6 73. At this time, the drive motor 41 starts again, and the output end of the drive motor 41 drives the gear 2 42 to rotate, the gear 2 42 drives the gear 4 53 to rotate, the gear 4 53 drives the movable rod 51 and the gear 5 54 on its surface to rotate, the gear 5 54 drives the gear 6 73 to rotate, the gear 6 73 drives the rotating rod 72 and the mounting seat 71 to rotate, and the position of the detection component 8 and the detection camera 9 is changed through the mounting seat 71. After that, the electric guide rail 1 76 performs the reset work again, and the two electric guide rails 2 77 are also started to control the detection component 8 and the detection camera 9 to reciprocate and detect the other side of the circuit board again.

[0045] After the detection is completed, the electric cylinder 61 starts to push the movable rod 51 up, and the gear 3 52 on the surface of the movable rod 51 engages with the two gears 1 36. The driving component 4 works to drive the linkage component 5 and the door control component 3 to rotate, so that the sealing door 31 of the door control component 3 opens the window 11 upward.

[0046] Afterwards, the conveyor 1 is started to convey the circuit board that has completed the inspection out of the interior of the inspection box 2, and a new circuit board to be inspected enters the interior of the inspection box 2 for another inspection.

[0047] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. An electronic component cooling detection mechanism for circuit board production, comprising a conveyor (1), characterized in that: A detection box (2) is installed on the top of the conveyor (1), and door control components (3) are provided on both sides of the detection box (2). A driving component (4), a linkage component (5) and a push-pull component (6) are provided inside the detection box (2). A position control component (7) is also provided inside the detection box (2), and a detection component (8) and a detection camera (9) are provided at the bottom of the position control component (7), and a limit component (10) is provided at the top of the position control component (7).

2. The electronic component cooling detection mechanism for circuit board production according to claim 1, characterized in that: The door control assembly (3) comprises a sealed door (31), the sealed door (31) is internally threadedly connected to an adjusting screw (32), a pulley 1 (33) is fixedly sleeved on the surface of the adjusting screw (32), the pulley 1 (33) is connected to a pulley 2 (34) via a belt transmission, a rotating rod (35) is fixedly sleeved on the inside of the pulley 2 (34), the rotating rod (35) is rotatably connected to a detection box (2) via a bearing, a gear 1 (36) is fixedly sleeved on the surface of the rotating rod (35), and the adjusting screw (32) is rotatably connected to the detection box (2) via a bearing; Windows (11) are provided on both sides of the detection box (2), and the two windows (11) correspond to the two sealing doors (31) respectively.

3. The electronic component cooling detection mechanism for circuit board production according to claim 1, characterized in that: The driving assembly (4) comprises a driving motor (41), the driving motor (41) being installed via a bracket and a detection box (2), and a second gear (42) being fixedly sleeved on an output end of the driving motor (41).

4. The electronic component cooling detection mechanism for circuit board production according to claim 1, characterized in that: The linkage assembly (5) comprises a movable rod (51), and a gear three (52), a gear four (53) and a gear five (54) are respectively fixedly sleeved on the surface of the movable rod (51).

5. The electronic component cooling detection mechanism for circuit board production according to claim 4, characterized in that: The push-pull assembly (6) comprises an electric cylinder 1 (61), a fixed plate (62) being fixedly mounted on the output end of the electric cylinder 1 (61), the interior of the fixed plate (62) being rotatably connected to the movable rod (51) via a bearing, and the bottom end of the electric cylinder 1 (61) being fixedly connected to the detection box (2).

6. The electronic component cooling detection mechanism for circuit board production according to claim 1, characterized in that: The position control assembly (7) comprises a mounting seat (71), a rotating rod (72) is fixedly connected to the top of the mounting seat (71), the rotating rod (72) is rotatably connected to the detection box (2) via a bearing, a gear six (73) is fixedly sleeved on the surface of the mounting seat (71), two sliding blocks one (74) are fixedly connected to the top of the mounting seat (71), and a circular groove (75) slidably connected to the sliding block one (74) is provided at the top of the inner cavity of the detection box (2); Two electric guide rails 1 (76) are installed at the bottom of the mounting seat (71), and the electric guide rail 1 (76) is fixedly installed with an electric guide rail 2 (77) via a slide.

7. The electronic component cooling detection mechanism for circuit board production according to claim 6, characterized in that: The detection assembly (8) comprises a mounting box (81), the top of which is slidably connected to the second electric guide rail (77) via a slide table; the top of the detection camera (9) is slidably connected to another second electric guide rail (77) via a slide table; Two probes (82) are installed inside the installation box (81), and the two probes (82) are respectively a detection probe and a power-on probe; two electric cylinders (83) are fixedly sleeved inside the installation box (81), and the output end of the electric cylinder (83) is slidably connected to the probe (82) via an insulating sleeve; an electric cylinder (84) is fixedly installed on the surface of the electric cylinder (83), and the top end of the electric cylinder (84) is slidably connected to a connecting rod (85) via a sleeve ring, and one end of the connecting rod (85) is fixedly connected to the probe (82) via a fixing ring; Two positioning overhead cameras (86) are installed at the bottom of the installation box (81).

8. The electronic component cooling detection mechanism for circuit board production according to claim 5, characterized in that: The limiting assembly (10) comprises a gear seven (101), the gear seven (101) being fixedly connected to the detection box (2) via a bracket, the gear seven (101) being respectively meshed with a positioning tooth plate (102) and a movable tooth plate (103), and the top of the movable tooth plate (103) is fixedly connected to a fixed plate (62); The movable tooth plate (103) and the positioning tooth plate (102) are both provided with a sliding groove (104) on the side away from each other, and a sliding block (105) fixedly connected to the detection box (2) is slidably connected inside the sliding groove (104).

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