PCB board detection device with fast positioning function

Abstract

The application discloses a PCB detection device with a rapid positioning function, and relates to the technical field of PCB detection.The detection device comprises a body, a rotating disc is arranged at the middle position of the body, and a plurality of bearing tables are arranged on the rotating disc.Compared with the current PCB detection device, the application is provided with a supporting assembly and a positioning assembly, the supporting assembly and the positioning assembly work cooperatively to realize non-contact position adjustment of the PCB, thereby avoiding direct movement of the PCB on the bearing table and preventing the PCB from being physically damaged or loosened due to scratching.The application is also provided with a linkage mechanism, which can correct the rotation angle of the rotating disc when the driving mechanism fails and the rotation angle of the rotating disc has an error, thereby improving the accuracy and reliability of the PCB detection, and avoiding subsequent manual calibration of the position of the bearing table and the industrial camera.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of PCB detection, and particularly relates to a PCB detection device with a rapid positioning function. BACKGROUND

[0002] An electric vehicle instrument panel is an important part of an electric vehicle and is directly related to real-time monitoring of the state of the vehicle by the driver and driving safety. The electric vehicle instrument panel usually integrates various electronic elements, such as a display screen, a sensor, a control chip and the like. These elements are electrically connected and installed through a PCB. Therefore, the quality and detection precision of the PCB are crucial to the performance and reliability of the electric vehicle instrument panel.

[0003] At present, various types of PCB detection devices exist on the market, mainly including manual visual detection and automatic optical detection. In order to ensure detection precision, various positioning components are usually arranged in the detection area of these detection devices to adjust the position of the PCB. However, when the position of the PCB is adjusted by the existing PCB detection device, the PCB is often directly moved on the workbench. At this time, the PCB is prone to physical damage due to scratching and collision, which affects the performance and reliability of the PCB. Finally, the existing PCB detection device has a low fault tolerance rate. When the encoder error of a driving mechanism (such as a servo motor) or the wear of a transmission component causes the stop deviation of a bearing table, the existing detection device lacks a real-time error correction mechanism. After the fault is repaired, the original position often needs to be manually calibrated by a worker, which restricts the working efficiency of the equipment. SUMMARY

[0004] The application aims to provide a PCB detection device with a rapid positioning function to solve the problems in the prior art.

[0005] To achieve the above object, the present application provides the following technical scheme: a PCB detection device with fast positioning function, the detection device comprises a fuselage, a turntable is arranged at the middle position of the fuselage, a plurality of bearing tables are arranged on the turntable, a group of positioning assemblies are arranged on the outer side of each bearing table, a lifting mechanism is arranged at the top end of the fuselage, an industrial camera is arranged at the working end of the lifting mechanism, a mounting seat is arranged below the turntable, a linkage mechanism is arranged in the mounting seat, a driving mechanism is arranged at the lower end of the fuselage, one end of the linkage mechanism is connected with the driving mechanism, the other end of the linkage mechanism is provided with an angle detection element and is connected with the turntable, in the working process of the present application, the PCB is placed on one of the bearing tables by artificial or mechanical gripper, whether the PCB is located at the center position of the bearing table and whether the PCB is inclined are checked by the positioning assemblies, and the PCB with incorrect position is corrected, when the position of the PCB is correct, the turntable is driven to rotate by the driving mechanism and the linkage mechanism, until the bearing table on which the PCB to be detected is placed is rotated to the position directly below the industrial camera, then the industrial camera is driven to approach the PCB to be detected by the lifting mechanism, the PCB to be detected is detected by the industrial camera, compared with the current PCB detection device, the linkage mechanism in the present application has an angle correction function, that is, when the driving mechanism fails and the rotation angle has an error when moving the PCB to be detected, the rotation angle of the turntable can be corrected by the linkage mechanism, so that the bearing table of the PCB to be detected can be accurately moved to the position directly below the industrial camera, thereby improving the precision and reliability of the PCB detection, preventing the element features on the PCB from being difficult to completely and clearly presented in the field of view of the industrial camera, on the other hand, when the driving mechanism of the existing PCB detection device is repaired, in order to ensure the normality of subsequent detection work, manual intervention calibration is often required to move the bearing table on which the PCB to be detected is placed to the position directly below the industrial camera, while the present application introduces a correction mechanism to ensure that the position of the bearing table on which the PCB to be detected is placed can be aligned with the industrial camera even if the driving mechanism fails, thereby reducing the trouble of manual intervention calibration and improving the work efficiency.

[0006] Further, the middle position of each bearing table is provided with a movable slot, each movable slot is provided with a support assembly, the rotating disc is provided with a plurality of grooves, each groove is provided with a first magnetic block inside, each first magnetic block is aligned with a support assembly, the first magnetic block and the support assembly are magnetically connected, the first magnetic block ensures that the support assembly can move horizontally in the movable slot stably, when the PCB to be detected is placed on the bearing table, first, the positioning assembly is used to check whether the position of the PCB to be detected is correct, when the position of the PCB to be detected is correct, the rotating disc is driven to rotate through the driving mechanism and the linkage mechanism, until the PCB to be detected is aligned with the industrial camera, when the position of the PCB to be detected is incorrect, the support assembly is used to adsorb the PCB to be detected, and the PCB to be detected is separated from the bearing table, finally, the positioning assembly is used to correct the position of the PCB to be detected, compared with the prior art, the PCB to be detected can be prevented from moving directly on the bearing table, and physical damage or element loosening of the PCB to be detected caused by scratching can be prevented.

[0007] Further, the positioning assembly comprises four positioning cylinders, the four positioning cylinders are arranged at the four sides of the bearing table, the working end of each positioning cylinder is provided with a mounting frame, both ends of the mounting frame are provided with a positioning column, and piezoelectric sheets are arranged on the outer wall of each positioning column, when the PCB to be detected is placed on the bearing table correctly, the four mounting frames are moved to the target position (the target position is determined by the size of the PCB to be detected), and each positioning column is accurately fitted with the edge of the PCB to be detected, at this time, due to the piezoelectric effect, the piezoelectric sheets on each positioning column can generate a group of electrical signals meeting the preset standard, if the position of the PCB to be detected placed on the bearing table is offset, the four mounting frames are not moved to the target position, and part of the positioning columns are in contact with the edge of the PCB to be detected, at this time, the worker can control two mounting frames aligned with each other to move to the target position, and then control the other two mounting frames aligned with each other to move to the target position, at this time, under the extrusion of the positioning columns, the offset PCB to be detected is pushed to the correct position on the bearing table, through the above technical scheme, the accuracy of subsequent detection of the PCB to be detected is ensured, and loss of defect information or identification error caused by position deviation is prevented.

[0008] Further, the support assembly comprises a support seat and a vacuum chuck, the upper end of the interior of the support seat is provided with a sliding groove, the lower end of the vacuum chuck is provided with a sliding sleeve, the sliding sleeve is arranged in the sliding groove, the upper end of the interior of the sliding sleeve is provided with a second magnetic block, the bottom end of the interior of the sliding groove is provided with a first electromagnet, when the support assembly is not working, the upper surface of the vacuum chuck is lower than the working surface of the bearing table, that is, when the to-be-detected PCB board is placed on the bearing table, the vacuum chuck is in a non-contact state with the to-be-detected PCB board, and there is a certain gap between the two, and the sliding sleeve can rotate freely in the sliding groove, when the positioning assembly detects that the position of the to-be-detected PCB board placed on the bearing table is offset, a group of magnetic fields repelling the second magnetic block is generated by the first electromagnet, so that the vacuum chuck rises and contacts the to-be-detected PCB board, and the to-be-detected PCB board is fixed by the vacuum chuck, then the magnetic field generated by the first electromagnet is continuously increased, and the to-be-detected PCB board and the vacuum chuck rise synchronously, when the to-be-detected PCB board is in a non-contact state with the working surface of the bearing table, the to-be-detected PCB board can be pushed to the correct position on the bearing table by the positioning assembly, when the position of the to-be-detected PCB board is correct, the magnetic field generated by the first electromagnet is gradually reduced, so that the vacuum chuck and the to-be-detected PCB board descend, when the to-be-detected PCB board recontacts the working surface of the bearing table, the vacuum chuck and the first electromagnet are turned off, so that the vacuum chuck is away from the to-be-detected PCB board, finally, the vacuum sponge chuck is selected for the vacuum chuck, so as to avoid damage to the to-be-detected PCB board.

[0009] Further, the interior of each bearing table is provided with a group of reset mechanisms, the reset mechanism comprises two mounting grooves, the two mounting grooves are oppositely arranged on the two sides of the movable groove, a reset motor and a winding wheel are arranged in each mounting groove, a reset rope is arranged on each winding wheel, and the two reset ropes are connected with the two ends of the support assembly, in the working process of the support assembly, the reset ropes on each winding wheel are in a relaxed state, so that the support assembly can freely move horizontally in the movable groove, when the offset to-be-detected PCB board reaches the correct position and the support assembly is away from the to-be-detected PCB board, the two reset motors can be started by the worker, so that the two reset ropes are wound on the two winding wheels, and under the action of the pulling force of the two reset ropes, the support assembly is automatically reset to the center position of the movable groove, thereby facilitating subsequent use.

[0010] Further, each mounting groove is connected with the movable groove through a through hole, a positioning ball is arranged on each reset rope, the diameter of the positioning ball is larger than the diameter of the through hole, in the non-working state of the supporting assembly, the two positioning balls are located at one end of the two through holes close to the movable groove, at this time, the two reset ropes are in a tight state, when the supporting assembly is in the working state, the two positioning balls fall into the movable groove, and the two reset ropes are in a relaxed state, when the staff starts two groups of reset motors to make the two reset ropes recover to the tight state, the two positioning balls are clamped when moving into the two through holes, the positioning ball arranged on each reset rope can ensure that the lengths of the two reset ropes are the same, and then the supporting assembly is automatically reset to the center position of the movable groove.

[0011] Further, the driving mechanism comprises a reversing motor and a gear box, the linkage mechanism comprises a first linkage disc and a second linkage disc, the working end of the reversing motor is connected with the input end of the gear box, the first linkage disc is connected with the output end of the gear box through a first linkage shaft, one end of the second linkage disc close to the first linkage disc is provided with a second electromagnet, the second linkage disc is connected with the rotating disc through a second linkage shaft, the angle detection element is arranged on the second linkage shaft, the first linkage disc is made of ferromagnetic material, in the working process of the present application, the first linkage disc and the second linkage disc are magnetically attracted and fixed together through the second electromagnet, the linkage mechanism is driven to rotate by the reversing motor and the gear box, and the rotating angle of the rotating disc is detected through the angle detection element, so that the subsequent PCB detection accuracy is ensured.

[0012] Further, the second linkage disc close to the first linkage disc is further provided with two limiting blocks, the first linkage disc close to the second linkage disc is provided with two limiting grooves, and each limiting block is inserted into a limiting groove, since the liquid is incompressible, the hydraulic oil is filled on both sides of each limiting block, and the two limiting blocks, the two limiting grooves and the hydraulic oil on both sides of each limiting block can effectively prevent the relative sliding of the second linkage disc and the first linkage disc caused by the insufficient magnetic force of the second electromagnet.

[0013] Further, the first linkage disc is provided with a correction assembly at the middle position, the correction assembly is connected with the two limiting grooves, and the rotating disc with an incorrect rotating angle is corrected through the correction assembly.

[0014] Further, the correction assembly comprises two offset air cylinders and two hydraulic grooves, the two offset air cylinders are arranged between the two hydraulic grooves, a piston is arranged in each hydraulic groove, and the two hydraulic grooves are connected with two ends of the two limiting grooves, and the specific connection mode is as follows: one of the hydraulic grooves is connected with one end of the two limiting grooves away from each other, and the other hydraulic groove is connected with the other end of the two limiting grooves away from each other, when the driving mechanism works normally, the two offset air cylinders are in a non-opening state, when the driving mechanism fails and causes the rotation angle to have an error, the working end of one of the offset air cylinders can be controlled to retract, and the working end of the other offset air cylinder extends, at this time, under the action of the hydraulic pressure, the two limiting blocks drive the second linkage disc and the rotating disc to rotate, and then the rotating disc with the wrong rotation angle is corrected, so as to ensure that the PCB to be detected is located directly below the industrial camera.

[0015] Compared with the prior art, the PCB detection device of the present application is provided with a supporting assembly and a positioning assembly, and through the cooperative work of the supporting assembly and the positioning assembly, the full-process non-contact position adjustment of "adsorption lifting, suspension correction and stable resetting" is realized, thereby avoiding the direct movement of the PCB on the bearing table, preventing the PCB from being physically damaged or the components from being loose due to scratching, and the like, in addition, the positioning assembly in the present application uses a plurality of positioning columns to adjust the offset PCB to the correct position on the bearing table, on the one hand, the positioning assembly can adjust the position of the PCB of different sizes, and on the other hand, when the plurality of positioning columns push the PCB, the worker can know the force of each positioning column on the PCB by monitoring the electric signal generated by the piezoelectric sheet arranged on each positioning column, so as to prevent the force of a certain positioning column on the PCB from being too large, causing damage to the PCB, finally, the present application also provides a linkage mechanism, when the driving mechanism fails and causes the rotation angle of the rotating disc to have an error, the linkage mechanism can correct the rotation angle of the rotating disc, so as to ensure that the bearing table of the PCB to be detected can be accurately moved to the position directly below the industrial camera, thereby improving the precision and reliability of the PCB detection, and at the same time, avoiding the need for manual calibration of the position of the bearing table and the industrial camera when the subsequent worker finishes repairing the failed driving mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0017] Figure 2 It is a schematic diagram of the connection between the rotating disc and the driving mechanism of the present application;

[0018] Figure 3 It is a position schematic diagram of the positioning assembly of the present application;

[0019] Figure 4The schematic view of the support assembly position of the present application;

[0020] Figure 5 The schematic view of the support assembly position of the present application;

[0021] Figure 6 The schematic view of the support assembly structure of the present application;

[0022] Figure 7 The schematic view of the linkage mechanism structure of the present application;

[0023] Figure 8 The schematic view of the second linkage disc structure of the present application;

[0024] Figure 9 The schematic view of the first linkage disc structure of the present application;

[0025] Figure 10 The schematic view of the correction assembly position of the present application.

[0026] In the figure: 1, the body; 2, the lifting mechanism; 3, the industrial camera; 4, the turntable; 41, the groove; 411, the first magnetic block; 5, the bearing table; 51, the positioning cylinder; 52, the mounting frame; 521, the positioning column; 53, the support assembly; 531, the support seat; 5311, the first electromagnet; 532, the vacuum chuck; 5321, the second magnetic block; 54, the reset motor; 541, the winding wheel; 542, the positioning ball; 543, the reset rope; 55, the movable slot; 6, the mounting seat; 61, the first linkage disc; 611, the first linkage shaft; 612, the limiting slot; 613, the offset cylinder; 614, the piston; 615, the hydraulic groove; 62, the second linkage disc; 621, the second linkage shaft; 622, the second electromagnet; 623, the limiting block; 63, the angle detection element; 7, the reversing motor; 71, the gear box. DETAILED DESCRIPTION

[0027] All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative labor fall within the scope of protection of the present application.

[0028] Embodiment: as Figures 1-10As shown, the present application provides a technical scheme, a PCB detection device with fast positioning function, the detection device includes a body 1, the middle position of the body 1 is provided with a turntable 4, the turntable 4 is provided with a plurality of bearing tables 5, the outer side of each bearing table 5 is provided with a set of positioning components, the top end of the body 1 is provided with a lifting mechanism 2, the working end of the lifting mechanism 2 is provided with an industrial camera 3, the lower side of the turntable 4 is provided with a mounting seat 6, the mounting seat 6 is provided with a linkage mechanism, the lower end of the body 1 is provided with a driving mechanism, one end of the linkage mechanism is connected with the driving mechanism, the other end of the linkage mechanism is provided with an angle detection element 63 and connected with the turntable 4, in the working process of the present application, the PCB is placed on one of the bearing tables 5 by artificial or mechanical gripper, whether the PCB is located in the center position of the bearing table 5 and whether the PCB is inclined are checked by the positioning component, and the PCB with incorrect position is corrected, when the position of the PCB is correct, the turntable 4 is driven to rotate by the driving mechanism and the linkage mechanism, until the bearing table 5 where the PCB to be detected is placed is rotated to the directly below of the industrial camera 3, then the industrial camera 3 is driven to approach the PCB to be detected by the lifting mechanism 2, the PCB to be detected is detected by the industrial camera 3, compared with the current PCB detection device, the linkage mechanism in the present application has angle correction function, that is, when the driving mechanism fails and the rotation angle error occurs when the PCB to be detected is moved, the rotation angle of the turntable 4 can be corrected by the linkage mechanism, to ensure that the bearing table 5 of the PCB to be detected can be accurately moved to the directly below of the industrial camera 3, thereby improving the precision and reliability of the PCB detection, preventing the element features on the PCB from being difficult to completely and clearly presented in the field of view of the industrial camera 3, on the other hand, when the driving mechanism of the existing PCB detection device is repaired, in order to ensure the normality of subsequent detection work, manual intervention calibration is often needed, the bearing table 5 where the PCB to be detected is placed is moved to the directly below of the industrial camera 3, while the present application introduces correction mechanism, to ensure that the position of the bearing table 5 where the PCB to be detected is placed can be aligned with the industrial camera 3 even if the driving mechanism fails, thereby reducing the trouble of manual intervention calibration and improving the work efficiency.

[0029] As Figures 2-5As shown, each bearing table 5 is provided with an active slot 55 at the middle position, each active slot 55 is provided with a support assembly 53, the rotating disc 4 is provided with a plurality of grooves 41, each groove 41 is provided with a first magnetic block 411 inside, each first magnetic block 411 is aligned with a support assembly 53, the first magnetic block 411 and the support assembly 53 are magnetically connected, the first magnetic block 411 ensures that the support assembly 53 can move horizontally in the active slot 55 stably, when the PCB to be detected is placed on the bearing table 5, first verify whether the position of the PCB to be detected is correct through the positioning assembly, when the position of the PCB to be detected is correct, drive the rotating disc 4 to rotate through the driving mechanism and the linkage mechanism, until the PCB to be detected is aligned with the industrial camera 3, when the position of the PCB to be detected is incorrect, the support assembly 53 adsorbs the PCB to be detected and makes the PCB to be detected leave the bearing table 5, finally, the positioning assembly corrects the position of the PCB to be detected, compared with the prior art, the PCB to be detected can avoid moving directly on the bearing table 5, thereby preventing the PCB to be detected from being physically damaged or the components from being loose due to scratching.

[0030] As shown in the figure, Figures 2-3 The positioning assembly includes four positioning cylinders 51, the four positioning cylinders 51 are arranged around the bearing table 5, the working end of each positioning cylinder 51 is provided with a mounting frame 52, both ends of the inside of each mounting frame 52 are provided with a positioning column 521, and a piezoelectric sheet is arranged on the outer wall of each positioning column 521, the four positioning cylinders 51 drive the four mounting frames 52 to move, when the position of the PCB to be detected placed on the bearing table 5 is correct, after the four mounting frames 52 move to the target position (the target position is determined by the size of the PCB to be detected), each positioning column 521 will be accurately fitted with the edge of the PCB to be detected, at this time, due to the piezoelectric effect, the piezoelectric sheet on each positioning column 521 will generate a group of electrical signals meeting the preset standard, if the position of the PCB to be detected placed on the bearing table 5 is offset, the four mounting frames 52 do not move to the target position, and part of the positioning columns 521 will contact the edge of the PCB to be detected, at this time, the workers can control two mounting frames 52 aligned with each other to move towards the target position as needed, and then control the other two mounting frames 52 aligned with each other to move towards the target position, at this time, under the extrusion of a plurality of positioning columns 521, the offset PCB to be detected will be pushed to the correct position on the bearing table 5, through the above technical solution, the accuracy of subsequent detection of the PCB to be detected is ensured, and loss of defect information or recognition error caused by position deviation is prevented.

[0031] As shown in the figure, Figures 5-6As shown, the support assembly 53 includes a support seat 531 and a vacuum chuck 532, the inner upper end of the support seat 531 is provided with a sliding groove, the lower end of the vacuum chuck 532 is provided with a sliding sleeve, the sliding sleeve is arranged in the sliding groove, the inner upper end of the sliding sleeve is provided with a second magnetic block 5321, and the inner bottom end of the sliding groove is provided with a first electromagnet 5311. When the support assembly 53 is not working, the upper surface of the vacuum chuck 532 is lower than the working surface of the bearing table 5, that is, when the to-be-detected PCB board is placed on the bearing table 5, the vacuum chuck 532 is in a non-contact state with the to-be-detected PCB board, and there is a certain gap between the two. At the same time, the sliding sleeve can rotate freely in the sliding groove. When the positioning assembly detects that the position of the to-be-detected PCB board placed on the bearing table 5 is offset, a magnetic field repelling the second magnetic block 5321 is generated by the first electromagnet 5311, so that the vacuum chuck 532 rises and contacts the to-be-detected PCB board. The to-be-detected PCB board is fixed by the vacuum chuck 532, then the magnetic field generated by the first electromagnet 5311 is continuously increased, and the to-be-detected PCB board and the vacuum chuck 532 will rise synchronously. When the to-be-detected PCB board is in a non-contact state with the working surface of the bearing table 5, the worker can make the to-be-detected PCB board be pushed to the correct position on the bearing table 5 through the positioning assembly. When the position of the to-be-detected PCB board is correct, the magnetic field generated by the first electromagnet 5311 is gradually reduced, so that the vacuum chuck 532 and the to-be-detected PCB board descend. When the to-be-detected PCB board recontacts the working surface of the bearing table 5, the vacuum chuck 532 and the first electromagnet 5311 are turned off, so that the vacuum chuck 532 moves away from the to-be-detected PCB board. Finally, the vacuum sponge chuck is selected for the vacuum chuck 532, so as to avoid damage to the to-be-detected PCB board.

[0032] As shown, Figure 5 Each bearing table 5 is provided with a set of reset mechanisms, and each reset mechanism includes two mounting grooves oppositely arranged on both sides of the movable groove 55. Each mounting groove is provided with a reset motor 54 and a winding wheel 541. Each winding wheel 541 is provided with a reset rope 543, and the two reset ropes 543 are connected to the two ends of the support assembly 53. During the working process of the support assembly 53, the reset rope 543 on each winding wheel 541 is in a relaxed state, so that the support assembly 53 can freely move horizontally in the movable groove 55. When the offset to-be-detected PCB board reaches the correct position and the support assembly 53 moves away from the to-be-detected PCB board, the worker can start the two reset motors 54, so that the two reset ropes 543 are wound on the two winding wheels 541. Under the action of the tension of the two reset ropes 543, the support assembly 53 will automatically reset to the center position of the movable groove 55, thereby facilitating subsequent use.

[0033] As Figure 5 shown, each mounting groove is connected with the movable groove 55 through a through hole, and each reset rope 543 is provided with a positioning ball 542, the diameter of the positioning ball 542 is larger than the diameter of the through hole, when the support assembly 53 is in a non-working state, the two positioning balls 542 are respectively located at one end of the two through holes close to the movable groove 55, at this time, the two reset ropes 543 are in a tight state (as Figure 5 shown), when the support assembly 53 is in a working state, the two positioning balls 542 fall into the movable groove 55, and the two reset ropes 543 are in a relaxed state, when the staff starts two groups of reset motors 54 to make the two reset ropes 543 recover to the tight state, the two positioning balls 542 are clamped when moving into the two through holes, the positioning ball 542 provided on each reset rope 543 can ensure that the lengths of the two reset ropes 543 are the same, thereby ensuring that the support assembly 53 is automatically reset to the center position of the movable groove 55.

[0034] As Figure 2 , Figures 7-10 shown, the driving mechanism includes a reversing motor 7 and a gear box 71, the linkage mechanism includes a first linkage disc 61 and a second linkage disc 62, the working end of the reversing motor 7 is connected with the input end of the gear box 71, the first linkage disc 61 is connected with the output end of the gear box 71 through a first linkage shaft 611, the second linkage disc 62 is provided with a second electromagnet 622 at one end close to the first linkage disc 61, the second linkage disc 62 is connected with the rotating disc 4 through a second linkage shaft 621, an angle detection element 63 is arranged on the second linkage shaft 621, the first linkage disc 61 is made of ferromagnetic material, during the working of the present application, the first linkage disc 61 and the second linkage disc 62 are magnetically attracted and fixed together through the second electromagnet 622, the linkage mechanism is driven to rotate with the rotating disc 4 through the reversing motor 7 and the gear box 71, whether the rotating angle of the rotating disc 4 is correct is detected through the angle detection element 63, and the detection accuracy of the subsequent PCB is ensured.

[0035] As Figures 7-10 shown, the second linkage disc 62 is further provided with two limiting blocks 623 at one end close to the first linkage disc 61, and the first linkage disc 61 is provided with two limiting grooves 612 at one end close to the second linkage disc 62, each limiting block 623 is inserted into one limiting groove 612, since the liquid is incompressible, the hydraulic oil is filled on both sides of each limiting block 623, through the two limiting blocks 623, the two limiting grooves 612 and the hydraulic oil on both sides of each limiting block 623, the present application can effectively prevent the relative sliding between the second linkage disc 62 and the first linkage disc 61 caused by the insufficient magnetic force of the second electromagnet 622.

[0036] As Figures 8-10As shown, a correction component is provided at the middle position of the first linkage disk 61 , and the correction component is connected to the two limiting grooves 612 .

[0037] like Figures 8-10 As shown, the correction component includes two offset cylinders 613 and two hydraulic grooves 615. The two offset cylinders 613 are arranged between the two hydraulic grooves 615. A piston 614 is arranged in each hydraulic groove 615. The two hydraulic grooves 615 are respectively connected to the two ends of the two limit grooves 612. The specific connection method is as follows: one hydraulic groove 615 is connected to one end of the two limit grooves 612 away from each other, and the other hydraulic groove 615 is connected to the other end of the two limit grooves 612 away from each other (as shown in FIG. Figure 10 As shown in the figure), when the driving mechanism is working normally, the two offset cylinders 613 are both in the non-open state. When the driving mechanism fails, resulting in an error in the rotation angle, the staff can first turn off the second electromagnet 622, and then control the working end of one of the offset cylinders 613 to retract and the working end of the other offset cylinder 613 to extend. At this time, under the action of hydraulic pressure, the two limit blocks 623 will drive the second linkage disk 62 and the turntable 4 to rotate, thereby correcting the turntable 4 with an incorrect rotation angle to ensure that the PCB board to be inspected is located directly below the industrial camera 3.

[0038] The working principle of the present invention is as follows: During operation, a PCB board is placed on one of the supporting platforms 5 using manual or mechanical grippers. The positioning assembly checks whether the PCB board is located at the center of the supporting platform 5 and whether it is tilted. When the PCB board to be inspected is correctly positioned, the drive mechanism and linkage mechanism drive the turntable 4 to rotate until the PCB board to be inspected is aligned with the industrial camera 3. If the PCB board to be inspected is not correctly positioned, the support assembly 53 adsorbs the PCB board to be inspected and moves it off the supporting platform 5. The positioning assembly then corrects the incorrectly positioned PCB board to ensure the correct position of the PCB board to be inspected. If the drive mechanism and linkage mechanism malfunction while driving the turntable 4 to rotate, resulting in an error in the rotation angle, the operator can turn off the second electromagnet 622 in the linkage mechanism and then control the working end of one offset cylinder 613 in the linkage mechanism to retract and the working end of the other offset cylinder 613 to extend. At this time, under the action of the hydraulic pressure, the two limit blocks 623 in the linkage mechanism drive the turntable 4 to rotate, thereby correcting the turntable 4 with an incorrect rotation angle to ensure that the PCB board to be inspected is moved directly below the industrial camera 3.

[0039] Finally, it should be noted that the above only describes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art will appreciate that the technical solutions described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalent ones. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A PCB board detection device with a rapid positioning function, characterized by: The detection device comprises a body (1), a turntable (4) is provided at the middle position of the body (1), a plurality of bearing platforms (5) are provided on the turntable (4), a group of positioning components are provided on the outer side of each bearing platform (5), a lifting mechanism (2) is provided at the top of the body (1), an industrial camera (3) is provided at the working end of the lifting mechanism (2), a mounting seat (6) is provided below the turntable (4), a linkage mechanism is provided in the mounting seat (6), a driving mechanism is provided at the lower end of the body (1), one end of the linkage mechanism is connected to the driving mechanism, and the other end of the linkage mechanism is provided with an angle detection element (63) and connected to the turntable (4), and the linkage mechanism has an angle correction function; The positioning assembly includes a positioning cylinder (51), and four positioning cylinders (51) are provided. The four positioning cylinders (51) are respectively arranged around the supporting platform (5), and a mounting frame (52) is provided at the working end of each positioning cylinder (51). A positioning column (521) is provided at both ends of the interior of each mounting frame (52), and a piezoelectric sheet is provided on the outer wall of each positioning column (521); A movable groove (55) is provided at the middle position of each supporting platform (5), and a supporting assembly (53) is provided in each movable groove (55). The turntable (4) is provided with a plurality of grooves (41), and a first magnetic block (411) is provided inside each groove (41). Each first magnetic block (411) is aligned with a supporting assembly (53), and the first magnetic block (411) and the supporting assembly (53) are magnetically connected. When the PCB to be tested is correctly positioned, the four mounting frames (52) are moved to a target position determined by the size of the PCB to be tested, each positioning column (521) is fitted with an edge of the PCB to be tested, and each piezoelectric piece generates a standard electrical signal; If the placement position of the PCB board to be inspected is offset, the PCB board to be inspected is adsorbed by the support assembly (53) and is moved away from the carrier platform (5). The mutually aligned mounting frames (52) are driven to move in steps, and the positioning columns (521) are used to squeeze and correct the deviation.

2. The PCB board detection device with rapid positioning function according to claim 1, characterized in that: The support assembly (53) comprises a support seat (531) and a vacuum suction cup (532), wherein the upper end of the support seat (531) is provided with a slide groove, the lower end of the vacuum suction cup (532) is provided with a slide sleeve, the slide sleeve is arranged in the slide groove, the upper end of the slide sleeve is provided with a second magnetic block (5321), and the lower end of the slide groove is provided with a first electromagnet (5311).

3. The PCB board detection device with rapid positioning function according to claim 1, characterized in that: A reset mechanism is provided inside each supporting platform (5), the reset mechanism comprising two mounting slots, the two mounting slots being arranged oppositely on both sides of the movable slot (55), a reset motor (54) and a reel (541) being provided in each mounting slot, a reset rope (543) being provided on each reel (541), and the two reset ropes (543) being connected to both ends of the support assembly (53), respectively.

4. The PCB board detection device with rapid positioning function according to claim 3, characterized in that: Each mounting groove is connected to the movable groove (55) via a through hole, and each reset rope (543) is provided with a positioning ball (542), wherein the diameter of the positioning ball (542) is larger than the diameter of the through hole.

5. The PCB board detection device with rapid positioning function according to claim 1, characterized in that: The driving mechanism comprises a reversing motor (7) and a gear box (71); the linkage mechanism comprises a first linkage disk (61) and a second linkage disk (62); the working end of the reversing motor (7) is connected to the input end of the gear box (71); the first linkage disk (61) is connected to the output end of the gear box (71) via a first linkage shaft (611); a second electromagnet (622) is provided at one end of the second linkage disk (62) close to the first linkage disk (61); the second linkage disk (62) is connected to the rotating disk (4) via a second linkage shaft (621); and the angle detection element (63) is provided on the second linkage shaft (621).

6. The PCB board detection device with rapid positioning function according to claim 5, characterized in that: Two limit blocks (623) are further provided at one end of the second linkage disk (62) close to the first linkage disk (61), and two limit slots (612) are provided at one end of the first linkage disk (61) close to the second linkage disk (62). Each limit block (623) is inserted into a limit slot (612), and both sides of each limit block (623) are filled with hydraulic oil.

7. The PCB board detection device with rapid positioning function according to claim 6, characterized in that: A correction component is provided at the middle position of the first linkage disk (61), and the correction component is connected to the two limit slots (612). The correction component is used to correct the turntable (4) with an incorrect rotation angle.

8. The PCB board detection device with rapid positioning function according to claim 7, characterized in that: The correction assembly comprises two offset cylinders (613) and two hydraulic grooves (615). The two offset cylinders (613) are arranged between the two hydraulic grooves (615). A piston (614) is provided in each hydraulic groove (615). The two hydraulic grooves (615) are respectively connected to the two ends of the two limiting grooves (612).

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