PCB automatic overturning inspection equipment

Abstract

The utility model relates to the technical field of circuit board production, and especially relates to a PCB automatic overturning inspection device. The utility model relates to a full-automatic turnover machine which comprises a feeding track module, a front face detection mechanism, a turnover mechanism, a reverse face detection mechanism, a discharging track module, a jacking mechanism and a material blocking mechanism. The feeding track module is provided with a feeding station and a front face detection station, and the discharging track module is provided with a reverse face detection station. The tail ends, in the conveying direction, of the feeding station, the front face detection station and the back face detection station are each provided with a material blocking mechanism, the front face detection station and the back face detection station are each provided with a jacking mechanism, the front face detection mechanism is installed above the front face detection station, and the back face detection mechanism is installed above the back face detection station. The turnover mechanism is installed between the front face detection station and the back face detection station. An equipment automatic detection mode is adopted, the detection efficiency can be effectively improved, and manpower waste is reduced; detection modes and standards are unified, product detection quality can be greatly guaranteed, and man-hour loss caused by personnel reworking is reduced.

Description

Technical Field

[0001] This utility model relates to the field of circuit board manufacturing technology, and in particular to an automatic PCB flipping and inspection device. Background Technology

[0002] In the current PCB manufacturing process, PCB inspection is performed manually, but this inspection method has the following problems:

[0003] (1) The PCB board needs to be inspected for the soldering status of components on both the top and bottom sides. Defects such as missing solder / missing components need to be detected. This requires manual inspection, which is inefficient and wastes manpower.

[0004] (2) Inconsistent manual inspection methods lead to missed inspections, potential quality risks, and rework by personnel results in wasted time;

[0005] (3) The PCB needs to be inspected on both sides, which requires personnel to flip it over, resulting in a waste of manual labor. Utility Model Content

[0006] This invention provides an automatic PCB flipping and inspection device, which aims to solve the problems existing in the manual inspection of PCB boards.

[0007] This utility model provides an automatic PCB flipping inspection device, including a feeding track module, a front detection mechanism, a flipping mechanism, a back detection mechanism, a discharging track module, a lifting mechanism, and a blocking mechanism. The feeding track module is provided with a feeding station and a front detection station, and the discharging track module is provided with a back detection station. A blocking mechanism is installed at the end of the feeding station, the front detection station, and the back detection station along the conveying direction. A lifting mechanism is installed at both the front detection station and the back detection station. The front detection mechanism is installed above the front detection station, and the back detection mechanism is installed above the back detection station. The flipping mechanism is installed between the front detection station and the back detection station.

[0008] As a further improvement of this utility model, the PCB automatic flip inspection equipment also includes a feeding sensor, a front detection positioning sensor, a flip feeding sensor, a flip positioning sensor, and a back detection positioning sensor. The feeding sensor is installed in the feeding station, the front detection positioning sensor is installed in the front detection station, the back detection positioning sensor is installed in the back detection station, the flip feeding sensor is installed at one end of the flip mechanism near the front detection station, and the flip positioning sensor is installed at one end of the flip mechanism near the back detection station.

[0009] As a further improvement of this utility model, the flipping mechanism includes an upper conveyor belt, a lower conveyor belt, an upper conveyor motor, a lower conveyor motor, a flipping motor, a clamping cylinder, and a flipping bracket. The upper and lower conveyor belts are respectively arranged on the upper and lower layers of the flipping bracket, and the upper and lower conveyor belt brackets are spaced apart by a conveying area. The upper and lower conveyor motors are respectively mounted on the flipping bracket. The output end of the upper conveyor motor is connected to the upper conveyor belt, and the output end of the lower conveyor motor is connected to the lower conveyor belt. The clamping cylinder is mounted on the flipping bracket and aligned with the conveying area, and the output end of the flipping motor is connected to the flipping bracket.

[0010] As a further improvement of this utility model, the feeding track module includes a feeding baffle, a feeding conveyor belt, and a feeding motor. The feeding track module has feeding baffles on both sides, the feeding conveyor belt is installed on the feeding baffles, and the output end of the feeding motor is connected to the feeding conveyor belt.

[0011] As a further improvement of this utility model, the lifting mechanism includes a lifting cylinder, a lifting plate, and a lifting guide rod. The output shaft of the lifting cylinder is connected to the lifting plate, the lifting guide rod is parallel to the output shaft of the lifting cylinder, and the lifting plate is movably connected to the lifting guide rod.

[0012] As a further improvement of this utility model, the material blocking mechanism includes a material blocking cylinder and a material blocking arm. The material blocking arm is connected to the output end of the material blocking cylinder. When blocking material, the material blocking cylinder drives the material blocking arm to rise.

[0013] As a further improvement of this utility model, the feeding track module includes a feeding baffle, a feeding conveyor belt, and a feeding motor. The feeding track module has feeding baffles on both sides, the feeding conveyor belt is installed on the feeding baffles, and the output end of the feeding motor is connected to the feeding conveyor belt.

[0014] As a further improvement of this utility model, the front detection mechanism includes a front detection three-axis moving module, a front detection camera, a front detection light source, and a front detection bracket. The front detection three-axis moving module is mounted above the front detection station, the front detection bracket is connected to the front detection three-axis moving module, and the front detection camera and the front detection light source are both connected to the front detection bracket. The front detection camera and the front detection light source are aligned with the front detection station.

[0015] As a further improvement of this utility model, the reverse side inspection mechanism includes a reverse side inspection three-axis moving module, a reverse side inspection camera, a reverse side inspection light source, and a reverse side inspection bracket. The reverse side inspection three-axis moving module is mounted above the reverse side inspection station, and the reverse side inspection bracket is connected to the reverse side inspection three-axis moving module. The reverse side inspection camera and the reverse side inspection light source are both connected to the reverse side inspection bracket, and the reverse side inspection camera and the reverse side inspection light source are aligned with the reverse side inspection station.

[0016] The beneficial effects of this utility model are: the use of automatic equipment detection can effectively improve detection efficiency and reduce manpower waste; the automatic operation of the equipment and the unified detection methods and standards can greatly ensure the quality of product detection and reduce the time loss caused by rework; the automatic flipping of the equipment can greatly improve the flipping efficiency and reduce the waste of employee movements. Attached Figure Description

[0017] Figure 1 This is an overall structural diagram of the PCB automatic flip-over inspection device of this utility model;

[0018] Figure 2 This is a structural diagram showing the position of each sensor in this utility model;

[0019] Figure 3 This is a structural diagram of the feeding track module in this utility model;

[0020] Figure 4 This is a structural diagram of the flipping mechanism in this utility model;

[0021] Figure 5 This is a structural diagram of the material feeding track module in this utility model;

[0022] Figure 6 This is a structural diagram of the front and back detection mechanism of this utility model. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0024] like Figure 1As shown, this utility model discloses an automatic PCB flipping inspection device, including a feeding track module 1, a front detection mechanism 2, a flipping mechanism 3, a back detection mechanism 4, a discharging track module 5, a lifting mechanism 6, and a blocking mechanism 7. The feeding track module 1 is provided with a feeding station 11 and a front detection station 12, and the discharging track module 5 is provided with a back detection station 51. A blocking mechanism 7 is installed at the end of the feeding station 11, the front detection station 12, and the back detection station 51 along the conveying direction. A lifting mechanism 6 is installed at both the front detection station 12 and the back detection station 51. The front detection mechanism 2 is installed above the front detection station 12, and the back detection mechanism 4 is installed above the back detection station 51. The flipping mechanism 3 is installed between the front detection station 12 and the back detection station 51.

[0025] The feed track module 1 is used to connect to the previous process, delivering the processed PCB board to this equipment. The delivered PCB board is fixed on the fixture plate, and during the entire transfer process, it only comes into contact with the fixture plate without damaging the PCB board. At the front inspection station 12, the lifting mechanism 6 is used to lift the fixture plate on the feed track module 1 closer to the front inspection mechanism 2 above, allowing the front inspection mechanism 2 to focus and take pictures for inspection. The blocking mechanism 7 at the end of the front inspection station 12 is used to stop the fixture plate inside the front inspection station 12, allowing the lifting mechanism 6 to complete the lifting action. During the front inspection, the blocking mechanism 7 at the feed station 11 blocks other fixture plates outside the front inspection station 12 to avoid interfering with the front inspection. The flipping mechanism 3 is connected to the feeding track module 1 and the unloading track module 5 at both ends, respectively. It is used to flip the jig plate after the front inspection is completed by 180° and send it into the unloading track module 5 so that the back side of the jig plate is facing up. At the back inspection station 51, the lifting mechanism 6 is used to lift the jig plate on the feeding track module 1 and bring it close to the back inspection mechanism 4 above, so that the back inspection mechanism 4 can focus and take pictures to achieve inspection. The material blocking mechanism 7 at the end of the back inspection station 51 is used to stop the jig plate in the back inspection station 51 so that the lifting mechanism 6 can complete the lifting action.

[0026] like Figure 2 As shown, the PCB automatic flip inspection equipment also includes a feeding sensor 81, a front detection positioning sensor 82, a flip feeding sensor 83, a flip positioning sensor 84, and a back detection positioning sensor 85. The feeding sensor 81 is installed in the feeding station 11, the front detection positioning sensor 82 is installed in the front detection station 12, the back detection positioning sensor 85 is installed in the back detection station 51, the flip feeding sensor 83 is installed at one end of the flip mechanism 3 near the front detection station 12, and the flip positioning sensor 84 is installed at one end of the flip mechanism 3 near the back detection station 51.

[0027] The feed sensor 81 is used to monitor whether there is a jig plate on the feed station 11 and to provide a feedback signal to control the action of the stop mechanism 7 at the end of the feed station 11; the front detection positioning sensor 82 is used to monitor whether there is a jig plate on the front detection station 12 and to provide a feedback signal to control the action of the stop mechanism 7 at the end of the front detection station 12 and the lifting mechanism 6 in the station; the back detection positioning sensor 85 is used to monitor whether there is a jig plate on the back detection station 51 and to provide a feedback signal to control the action of the stop mechanism 7 at the end of the back detection station 51 and the lifting mechanism 6 in the station; the flip feed sensor 83 is used to monitor whether a jig plate enters the flip mechanism 3 and the flip positioning sensor 84 is used to monitor whether the jig plate has left the flip mechanism 3.

[0028] like Figure 3 As shown, the feeding track module 1 includes a feeding baffle 13, a feeding conveyor belt 14, and a feeding motor 15. Feeding baffles 13 are provided on both sides of the feeding track module 1, and the feeding conveyor belt 14 is mounted on the feeding baffles 13. The output end of the feeding motor 15 is connected to the feeding conveyor belt 14. The feeding baffles 13 on both sides serve as guides, defining the conveying area of ​​the fixture plate. The feeding motor 15 drives the feeding conveyor belt 14 to convey the fixture plate, thereby causing the fixture plate to move directly between the feeding station 11 and the front inspection station 12, and to feed the fixture plate into the flipping mechanism 3.

[0029] The lifting mechanism 6 includes a lifting cylinder 61, a lifting plate 62, and a lifting guide rod 63. The output shaft of the lifting cylinder 61 is connected to the lifting plate 62, and the lifting guide rod 63 is parallel to the output shaft of the lifting cylinder 61. The lifting plate 62 is movably connected to the lifting guide rod 63. The lifting cylinder 61 drives the lifting plate 62 to move up and down. The lifting plate 62 contacts the fixture plate through its four corners, thereby causing the fixture plate to rise and detach from the feed conveyor belt 14. This, in conjunction with the front inspection mechanism 2, completes the inspection of the front side of the PCB. After the inspection, the lifting cylinder 61, through the lifting plate 62, drives the fixture plate back onto the feed conveyor belt 14. The lifting guide rod 63 provides auxiliary guidance for the up and down movement of the lifting plate 62.

[0030] The material blocking mechanism 7 includes a material blocking cylinder 71 and a material blocking arm 72. The material blocking arm 72 is connected to the output end of the material blocking cylinder 71. When blocking material, the material blocking cylinder 71 drives the material blocking arm 72 to rise. The material blocking cylinder 71 drives the material blocking arm 72 to achieve lifting and lowering. When it is necessary to block the fixture plate on the feed conveyor belt 14 or the unfeed conveyor belt 52, the material blocking cylinder 71 drives the material blocking arm 72 to rise to protrude in front of the fixture plate's travel direction, blocking the fixture plate. When it is necessary to release the fixture plate, the material blocking cylinder drives the material blocking arm 72 to descend and retract to below the fixture plate's travel direction, avoiding the fixture plate's position.

[0031] like Figure 4As shown, the flipping mechanism 3 includes an upper conveyor belt 31, a lower conveyor belt 32, an upper conveyor motor 33, a lower conveyor motor 34, a flipping motor 35, a clamping cylinder 36, and a flipping bracket 37. The upper conveyor belt 31 and the lower conveyor belt 32 are respectively arranged on the upper and lower layers of the flipping bracket 37. The upper conveyor belt 31 and the lower conveyor belt 32 are separated by a conveying area. The upper conveyor motor 33 and the lower conveyor motor 34 are respectively mounted on the flipping bracket 37. The output end of the upper conveyor motor 33 is connected to the upper conveyor belt 31, and the output end of the lower conveyor motor 34 is connected to the lower conveyor belt 32. The clamping cylinder 36 is mounted on the flipping bracket 37 and aligned with the conveying area. The output end of the flipping motor 35 is connected to the flipping bracket 37.

[0032] When the jig plate is fed from the feed track module 1 into the flipping mechanism 3, it will be sent into the conveying area and come into contact with the lower conveyor belt 32. At this time, the lower conveyor motor 34 drives the lower conveyor belt 32 to send the jig plate into the flipping mechanism 3. Then, the flipping motor 35 drives the entire flipping bracket 37 to rotate 180°. At this time, the jig plate comes into contact with the upper conveyor belt 31. The upper conveyor motor 33 drives the upper conveyor belt 31 to send the jig plate out onto the unloading track module 5. The clamping cylinder 36 is used to fix the jig plate on the flipping mechanism 3 to prevent it from loosening during the flipping process.

[0033] like Figure 5 As shown, the unloading track module 5 includes an unloading baffle 51, an unloading conveyor belt 52, and an unloading motor 53. An unloading baffle 51 is provided on each side of the unloading track module 5. The unloading conveyor belt 52 is mounted on the unloading baffle 51, and the output end of the unloading motor 53 is connected to the unloading conveyor belt 52. The unloading baffles 51 on both sides serve as a guide, defining the conveying area of ​​the fixture plate. The unloading motor 53 drives the unloading conveyor belt 52 to convey the fixture plate, thereby moving it from the flipping mechanism 3 into the reverse inspection station 51.

[0034] like Figure 6 As shown, the front inspection mechanism 2 includes a front inspection three-axis moving module 21, a front inspection camera 22, a front inspection light source 23, and a front inspection bracket 24. The front inspection three-axis moving module 21 is mounted above the front inspection station 12. The front inspection bracket 24 is connected to the front inspection three-axis moving module 21. The front inspection camera 22 and the front inspection light source 23 are both connected to the front inspection bracket 24, and are aligned with the front inspection station 12. The front inspection three-axis moving module drives the front inspection station to adjust in the X, Y, and Z axes so that the front inspection camera 22 and the front inspection light source 23 can be aligned with the PCB board to be inspected. The front inspection light source 23 can be a ring light source to provide uniform illumination to the PCB board to be inspected. The front inspection camera 22 takes pictures of the PCB board to be inspected and uploads the pictures to the backend for PCB board quality inspection.

[0035] The reverse inspection mechanism 4 includes a three-axis moving module 41, a reverse inspection camera 42, a reverse inspection light source 43, and a reverse inspection bracket 44. The three-axis moving module 41 is mounted above the reverse inspection station 51. The reverse inspection bracket 44 is connected to the three-axis moving module 41. The reverse inspection camera 42 and the reverse inspection light source 43 are both connected to the reverse inspection bracket 44 and are aligned with the reverse inspection station 51. The three-axis moving module adjusts the reverse inspection mechanism in the X, Y, and Z axes so that the reverse inspection camera 42 and the reverse inspection light source 43 can be aligned with the PCB board to be inspected. The reverse inspection light source 43 can be a ring light source to provide uniform illumination to the PCB board to be inspected. The reverse inspection camera 42 takes pictures of the PCB board to be inspected and uploads the pictures to the backend for PCB board quality inspection.

[0036] The working principle of this automatic PCB flipping and inspection equipment is as follows:

[0037] 1) When the equipment is powered on, the operator clicks the reset and start button. After the equipment is reset and started normally, and after the detection program is edited, the operator can manually or the previous process equipment can automatically feed the material onto the feeding track module 1.

[0038] 2) The feeding conveyor belt 14 runs automatically under the drive of the feeding motor 15. After the front detection positioning sensor 82 detects the presence of material, the blocking cylinder of the front detection station 12 rises, and the lifting cylinder 61 rises to achieve the positioning of the jig plate. The blocking cylinder of the feeding station 11 rises to prevent the jig plate from continuously flowing in.

[0039] 3) After the fixture plate is positioned, the front inspection camera 22 takes pictures and inspects according to the programmed points. The OK / NG data is saved and uploaded. After the inspection is completed, the lifting cylinder 61 of the front inspection station 12 descends, the blocking cylinder descends, and the feeding conveyor belt 14 runs to make the fixture plate flow normally into the flipping mechanism 3.

[0040] 4) When the flipping feed sensor 83 has a material signal, the lower conveyor motor 34 drives the lower conveyor belt 32 to run. When the flipping position sensor 84 has a material signal, the clamping cylinders 36 on both sides of the flipping bracket 37 clamp the fixture plate at the same time. The flipping motor 35 flips 180°. After flipping to the position, the clamping cylinders 36 on both sides release at the same time. The upper conveyor motor 33 drives the upper conveyor belt 31 to run. The fixture plate flows to the unloading track module 5, and the flipping mechanism 3 flips to the initial position.

[0041] 5) When the reverse detection position sensor 85 detects a material signal, the blocking cylinder of the reverse detection station 51 rises and the lifting cylinder 61 rises to achieve the positioning of the fixture plate.

[0042] 6) After the fixture plate is positioned, the reverse inspection camera 42 takes pictures and inspects the parts according to the programmed points. OK / NG data is saved and uploaded, and the inspection result is OK. The lifting cylinder 61 of the reverse inspection station 51 descends, the blocking cylinder descends, and the unloading conveyor belt 52 runs normally, allowing the material to flow into the next process.

[0043] 7) When inspecting NG products, the equipment will pause and alarm, requiring manual confirmation and handling. Feeding will resume after the handling is completed.

[0044] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications or substitutions should be considered within the protection scope of the present invention.

Claims

1. A PCB automatic flip-over inspection apparatus, characterized by, The system includes a feeding track module, a front detection mechanism, a flipping mechanism, a back detection mechanism, a discharge track module, a lifting mechanism, and a blocking mechanism. The feeding track module has a feeding station and a front detection station, and the discharge track module has a back detection station. Blocking mechanisms are installed at the ends of the feeding station, the front detection station, and the back detection station along the conveying direction. Lifting mechanisms are installed at both the front detection station and the back detection station. The front detection mechanism is installed above the front detection station, and the back detection mechanism is installed above the back detection station. The flipping mechanism is installed between the front detection station and the back detection station.

2. The PCB automatic flip-over inspection apparatus of claim 1, wherein, It also includes a feed sensor, a front detection positioning sensor, a flip feed sensor, a flip positioning sensor, and a back detection positioning sensor. The feed sensor is installed in the feed station, the front detection positioning sensor is installed in the front detection station, the back detection positioning sensor is installed in the back detection station, the flip feed sensor is installed at the end of the flipping mechanism near the front detection station, and the flip positioning sensor is installed at the end of the flipping mechanism near the back detection station.

3. The PCB automatic flip-over inspection apparatus of claim 1, wherein, The flipping mechanism includes an upper conveyor belt, a lower conveyor belt, an upper conveyor motor, a lower conveyor motor, a flipping motor, a clamping cylinder, and a flipping bracket. The upper and lower conveyor belts are respectively arranged on the upper and lower layers of the flipping bracket, and the upper and lower conveyor belt brackets are spaced apart by a conveying area. The upper and lower conveyor motors are respectively mounted on the flipping bracket. The output end of the upper conveyor motor is connected to the upper conveyor belt, and the output end of the lower conveyor motor is connected to the lower conveyor belt. The clamping cylinder is mounted on the flipping bracket and aligned with the conveying area, and the output end of the flipping motor is connected to the flipping bracket.

4. The PCB automatic flip-over inspection apparatus of claim 1, wherein, The feeding track module includes a feeding baffle, a feeding conveyor belt, and a feeding motor. The feeding track module has feeding baffles on both sides, the feeding conveyor belt is installed on the feeding baffles, and the output end of the feeding motor is connected to the feeding conveyor belt.

5. The PCB automatic flip-over inspection apparatus of claim 1, wherein, The lifting mechanism includes a lifting cylinder, a lifting plate, and a lifting guide rod. The output shaft of the lifting cylinder is connected to the lifting plate, the lifting guide rod is parallel to the output shaft of the lifting cylinder, and the lifting plate is movably connected to the lifting guide rod.

6. The PCB automatic flip-over inspection apparatus of claim 1, wherein, The material blocking mechanism includes a material blocking cylinder and a material blocking arm. The material blocking arm is connected to the output end of the material blocking cylinder. When blocking material, the material blocking cylinder drives the material blocking arm to rise.

7. The PCB automatic flip-over inspection apparatus of claim 1, wherein, The feeding track module includes a feeding baffle, a feeding conveyor belt, and a feeding motor. The feeding track module has feeding baffles on both sides, the feeding conveyor belt is installed on the feeding baffles, and the output end of the feeding motor is connected to the feeding conveyor belt.

8. The PCB automatic flip-over inspection apparatus of claim 1, wherein, The front detection mechanism includes a front detection three-axis moving module, a front detection camera, a front detection light source, and a front detection bracket. The front detection three-axis moving module is mounted above the front detection station. The front detection bracket is connected to the front detection three-axis moving module. The front detection camera and the front detection light source are both connected to the front detection bracket. The front detection camera and the front detection light source are aligned with the front detection station.

9. The PCB automatic flip-over inspection apparatus of claim 1, wherein, The reverse surface detection mechanism comprises a reverse surface detection three-axis moving module, a reverse surface detection camera, a reverse surface detection light source and a reverse surface detection support, the reverse surface detection three-axis moving module is arranged above the reverse surface detection station, the reverse surface detection support is connected to the reverse surface detection three-axis moving module, the reverse surface detection camera and the reverse surface detection light source are both connected to the reverse surface detection support, and the reverse surface detection camera and the reverse surface detection light source are aligned with the reverse surface detection station.

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