PCBA testing machine

Abstract

The utility model relates to a PCBA testing machine, which comprises a material taking device, a feeding conveying device, a discharging conveying device and a testing device, and is characterized in that the material taking device comprises a six-axis manipulator, and the feeding conveying device, the discharging conveying device and the testing device are arranged in the working range of the six-axis manipulator; the conveying direction of the feeding conveying device is the direction close to the six-axis mechanical arm, and the conveying direction of the discharging conveying device is the direction away from the six-axis mechanical arm. The to-be-tested PCBA is fed through the feeding conveying device, the to-be-tested PCBA is grabbed by the material taking device to the testing device to be tested, and then the to-be-tested PCBA after being tested is grabbed to the discharging conveying device, manual participation is not needed in the whole process, and the testing efficiency is greatly improved; and all transmission sub-mechanisms in the feeding conveying device and the discharging conveying device are mutually independent, so that the working stability of the whole PCBA testing machine is ensured.

Description

A PCBA testing machine Technical Field

[0001] This utility model relates to the field of testing devices, and in particular to a PCBA testing machine. Background Technology

[0002] Printed Circuit Board Assemblies (PCBAs) require programming and testing after production. Currently, PCBA testing typically relies on manual placement of the circuit boards onto testing equipment, followed by manual removal after testing and classification based on the results. This entire process is manual and extremely inefficient. Summary of the Invention

[0003] Therefore, it is necessary to provide a PCBA testing machine to address the problem of low PCBA testing efficiency.

[0004] This utility model provides a PCBA testing machine, including a material handling device, a feeding conveyor, an unloading conveyor, and a testing device. The material handling device includes a six-axis robot. The feeding conveyor, the unloading conveyor, and the testing device are arranged within the working range of the six-axis robot. The feeding conveyor moves towards the six-axis robot, and the unloading conveyor moves away from the six-axis robot.

[0005] Both the feeding conveyor and the discharging conveyor include at least one transmission mechanism. The transmission mechanism includes multiple transmission sub-mechanisms. Each transmission sub-mechanism includes a conveyor belt and a corresponding drive assembly. The drive assembly includes a rotary drive component, a rotary transmission component, and a rotary motion component. The rotary drive component is driven by the rotary transmission component, and the rotary transmission component is driven by the rotary motion component. The rotary motion component engages with the conveyor belt to drive the conveyor belt to move.

[0006] In some of these embodiments, the rotary drive includes a drive motor and a first gear, the rotary transmission includes a rotating rod, a second gear and a third gear, and the rotary motion includes a fourth gear and a rolling column;

[0007] The rotating head of the drive motor is fixedly connected to the first gear, the first gear meshes with the second gear, the second gear is fixedly connected to one end of the rotating rod, the other end of the rotating rod is fixedly connected to the third gear, the third gear meshes with the fourth gear, the fourth gear is fixedly connected to the rolling column, and the rolling column meshes with the conveyor belt.

[0008] In some embodiments, adjacent transmission submechanisms in the transmission mechanism share a support plate, which is provided with support holes for the rotating rod and the rolling column to rotate.

[0009] In some embodiments, the transmission mechanism further includes a control panel that independently controls the operation of each of the drive motors.

[0010] In some embodiments, the six-axis robot includes a rotating base, a folding rod, a tool head, and a multi-station manipulator; the rotating base is movably connected to one end of the folding rod, the other end of the folding rod is movably connected to one end of the tool head, and the other end of the tool head is fixedly connected to the multi-station manipulator;

[0011] The multi-station operator includes a connecting frame, a vision sensor, and multiple gripping parts. The connecting frame is fixedly connected to the tool head, the vision sensor is fixedly connected to the connecting frame, and the multiple gripping parts are fixedly connected side by side to the connecting frame. The field of view of the vision sensor is parallel to the installation posture of the gripping parts.

[0012] In some embodiments, the gripping part includes a cylinder and a plurality of suction heads, the cylinder being connected to the suction head pipes.

[0013] In some embodiments, the connecting frame is fixedly connected to a supplementary light, and the supplementary light is positioned around the visual sensor.

[0014] In some embodiments, the material handling device further includes a control housing, the six-axis robot is fixedly mounted on the upper surface of the control housing, and the side of the control mechanism is provided with through holes for one end of the feeding conveyor and one end of the discharging conveyor to pass through.

[0015] In some embodiments, the testing apparatus includes a testing mechanism and a pull-out shielded box.

[0016] In some embodiments, the discharge conveying device further includes a defective product discharge mechanism, which has the same structural composition as the transmission submechanism.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The PCBA under test is fed into the feeding conveyor, and the picking device picks up the PCBA under test from the feeding conveyor and transfers it to the testing device for testing. After the test is completed, the picking device picks up the PCBA under test from the testing device and transfers it to the discharge conveyor. The entire process can be completed without manual intervention, which greatly improves testing efficiency. Furthermore, the various transmission submechanisms in the feeding and discharge conveyors are independent of each other. If any transmission submechanism fails, it can stop working independently without affecting the operation of other transmission submechanisms, ensuring the overall stability of the PCBA testing machine. Attached Figure Description

[0019] Figure 1 is a schematic diagram of the PCBA testing machine shown in an embodiment of the present invention;

[0020] Figure 2 is a cross-sectional view of the transmission mechanism shown in an embodiment of the present invention.

[0021] Figure 3 is a partial magnified view of Figure 2 showing an embodiment of the present invention;

[0022] Figure 4 is a schematic diagram of the feeding conveyor device shown in an embodiment of the present invention;

[0023] Figure 5 is a schematic diagram of the structure of a six-axis robot according to an embodiment of the present invention;

[0024] Figure 6 is a schematic diagram of the material handling device shown in an embodiment of this utility model. Detailed Implementation

[0025] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0026] It should be noted that when an element is said to be "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is said to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. Conversely, when an element is said to be "directly on" another element, there is no intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] Referring to Figures 1 to 5, Figure 1 is a structural schematic diagram of a PCBA testing machine according to an embodiment of the present invention. The PCBA testing machine includes a material handling device 1, a feeding conveyor 2, an unloading conveyor 3, and a testing device 4. The material handling device 1 includes a six-axis robot 11. The feeding conveyor 2, the unloading conveyor 3, and the testing device 4 are arranged within the working range of the six-axis robot 11. The conveying direction of the feeding conveyor 2 is towards the six-axis robot 11, and the conveying direction of the unloading conveyor 3 is away from the six-axis robot 11.

[0029] Both the feeding conveyor 2 and the discharging conveyor 3 include at least one transmission mechanism 23. The transmission mechanism 23 includes multiple transmission sub-mechanisms 5. Each transmission sub-mechanism 5 includes a conveyor belt 51 and a corresponding drive assembly 52. ​​The drive assembly 52 includes a rotary drive member 521, a rotary transmission member 522, and a rotary motion member 523. The rotary drive member 521 is connected to the rotary transmission member 522, and the rotary transmission member 522 is connected to the rotary motion member 523. The rotary motion member 523 engages with the conveyor belt 51 to drive the conveyor belt 51 to move.

[0030] In this embodiment, the feeding conveyor 2 can be connected to the PCBA production line. After the PCBA is produced, it is transferred to the feeding conveyor 2. A six-axis robot 11 picks up the PCBA from the feeding conveyor 2 and transfers it to the testing device 4. After the testing device 4 completes the test, the six-axis robot 11 picks up the tested PCBA and transfers it to the unloading conveyor 3. The entire process does not require manual intervention, greatly improving the efficiency of PCBA testing. At the same time, the feeding conveyor 2 and the unloading conveyor 3 adopt a conveying mechanism 23, which includes multiple conveying sub-mechanisms 5. When the rotary drive component 521 is working, it drives the rotary transmission component 522, which in turn drives the rotary motion component 523, thereby causing the conveyor belt 51 to move. When any conveyor belt 51 or drive component 52 of any conveying sub-mechanism 5 fails, that conveying sub-mechanism 5 can be paused individually, while the other conveying sub-mechanisms 5 continue to operate normally, thereby ensuring the working stability of the PCBA testing machine.

[0031] In some embodiments, referring to FIG3, the rotary drive 521 includes a drive motor 5211 and a first gear 5212, the rotary transmission 522 includes a rotating rod 5221, a second gear 5222 and a third gear 5223, and the rotary motion 523 includes a fourth gear 5231 and a rolling column 5232.

[0032] The rotating head of the drive motor 5211 is fixedly connected to the first gear 5212. The first gear 5212 meshes with the second gear 5222. The second gear 5222 is fixedly connected to one end of the rotating rod 5221. The other end of the rotating rod 5221 is fixedly connected to the third gear 5223. The third gear 522 meshes with the fourth gear 5231. The fourth gear 5231 is fixedly connected to the rolling column 5232. The rolling column 5232 meshes with the conveyor belt 51.

[0033] In this embodiment, when the drive motor 5211 is working, its rotating head drives the first gear 5212 to rotate, and the second gear 5222, rotating rod 5221, and third gear 5223 rotate accordingly, which in turn drives the fourth gear 5231 and rolling column 5232 to rotate, thereby driving the conveyor belt 51 to move. The diameters of the first gear 5212, second gear 5222, third gear 5223, and fourth gear 5231 increase sequentially to reduce the driving force required by the drive motor 5211, thus allowing for the selection of a drive motor with lower specifications.

[0034] In some embodiments, referring to FIG2, adjacent transmission sub-mechanisms 5 in the transmission mechanism 23 share a support plate 53, and the support plate 53 is provided with support holes for the rotating rod 5221 and the rolling column 5232 to rotate.

[0035] In this embodiment, both the feeding conveyor 2 and the discharging conveyor 3 are equipped with cabinets. Control-related circuit boards and other components are housed inside the cabinets. A fixed bracket is installed on the top of the cabinet, and the transmission mechanism 23 is mounted on the fixed bracket. The rotating rod 5221 and rolling column 5232 of the transmission sub-mechanism 5 are movably connected to the fixed bracket. A support plate 53 is installed adjacent to the transmission sub-mechanism 5 on the fixed bracket. The rotating rod 5221 and rolling column 5232 are movably connected to one side of the fixed bracket and a support hole. By providing the support plate 53, the gaps between the transmission sub-mechanisms 5 are reduced, thus lowering the overall volume occupied by the transmission mechanism 23.

[0036] In some embodiments, referring to FIG4, the transmission mechanism 23 further includes a control panel 54 for independently controlling the operation of each drive motor 5211. The control panel 54 is provided with operation buttons corresponding to each drive motor 5211 to facilitate independent control of a single transmission submechanism 5.

[0037] In some embodiments, referring to FIG5, the six-axis robot 11 includes a rotating base 111, a folding rod 112, a tool head 113, and a multi-station manipulator 114; the rotating base 111 is movably connected to one end of the folding rod 112, the other end of the folding rod 112 is movably connected to one end of the tool head 113, and the other end of the tool head 113 is fixedly connected to the multi-station manipulator 114;

[0038] The multi-station operator 114 includes a connecting frame 1141, a vision sensor 1142, and multiple gripping parts 1143. The connecting frame 1141 is fixedly connected to the tool head 113, the vision sensor 1142 is fixedly connected to the connecting frame 113, and the multiple gripping parts 1143 are fixedly connected side by side to the connecting frame 1141. The field of view of the vision sensor 1142 is parallel to the installation posture of the gripping parts 1143.

[0039] In this embodiment, the six-axis robot 11 can be rotated in any posture by rotating the base 111 and folding the rod 112. The vision sensor 1142 can identify and position the PCBA on the transmission mechanism 23, so that the gripping part 1143 can grasp or place the PCBA, thereby improving the gripping accuracy of the six-axis robot 11. Furthermore, the use of a multi-station manipulator 114 can enable the simultaneous grasping of multiple PCBAs, improving efficiency.

[0040] In some embodiments, the gripping part 1143 includes a cylinder 11431 and a plurality of suction heads 11432, wherein the cylinder 11431 is connected to the suction heads 11432 via pipes.

[0041] In this embodiment, the suction head 11432 is a suction cup structure. When it is necessary to grasp the PCBA, the suction head 11432 acts on the surface of the PCBA, and the cylinder 11431 draws air to make the suction head 11432 pick up the PCBA. When it is necessary to place the PCBA, the cylinder 11431 stops drawing air (or even blows air) to make the suction head 11432 release the PCBA, thus realizing stable grasping and releasing of the PCBA.

[0042] In some embodiments, a supplementary light 1144 is fixedly connected to the connecting bracket 1141, and the supplementary light 1144 is disposed around the vision sensor 1142. The supplementary light 1144 can improve the brightness of the field of view of the vision sensor 1142, enabling the vision sensor 1142 to better identify and locate PCBAs.

[0043] In some embodiments, referring to FIG6, the material handling device 1 further includes a control housing 12, the six-axis robot 11 is fixedly installed on the upper surface of the control housing 12, and the side of the control mechanism 12 is provided with a through hole for one end of the feeding conveying device 2 and one end of the discharging conveying device 3 to pass through.

[0044] In this embodiment, one end of the feeding conveyor 2 and the discharging conveyor 3 is located in the through hole to reduce the overall space occupied by the PCBA testing machine and increase the range of motion of the six-axis robot 11 on the feeding conveyor 2 and the discharging conveyor 3.

[0045] In some embodiments, the testing apparatus includes a testing mechanism 41 and a pull-out shielding box 42 to reduce the interference of external factors on the PCBA testing process, wherein the pull-out shielding box 42 can be automatically controlled to be pulled out.

[0046] In some embodiments, the discharge conveying device 3 further includes a defective product discharge mechanism 31, which has the same structure as the transmission submechanism 5.

[0047] In this embodiment, the six-axis robot 11 can also classify the PCBAs that have completed the test according to the test results, and place the PCBAs in the conveying mechanism 23 or the defective product discharge mechanism 31 of the discharge conveying device 3, so that no manual re-classification is required.

[0048] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0049] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A PCBA testing machine, characterized in that, The system includes a material handling device, a feeding conveyor, a discharging conveyor, and a testing device. The material handling device includes a six-axis robot. The feeding conveyor, discharging conveyor, and testing device are located within the working range of the six-axis robot. The feeding conveyor moves towards the six-axis robot, and the discharging conveyor moves away from the six-axis robot. Both the feeding and discharging conveyors include at least one transmission mechanism. Each transmission mechanism includes multiple transmission sub-mechanisms, each including a conveyor belt and a corresponding drive assembly. The drive assembly includes a rotary drive component, a rotary transmission component, and a rotary motion component. The rotary drive component is connected to the rotary transmission component, and the rotary transmission component is connected to the rotary motion component. The rotary motion component engages with the conveyor belt to drive the conveyor belt.

2. The PCBA testing machine according to claim 1, characterized in that, The rotary drive component includes a drive motor and a first gear; the rotary transmission component includes a rotating rod, a second gear, and a third gear; the rotary motion component includes a fourth gear and a rolling column; the rotating head of the drive motor is fixedly connected to the first gear; the first gear meshes with the second gear; the second gear is fixedly connected to one end of the rotating rod; the other end of the rotating rod is fixedly connected to the third gear; the third gear meshes with the fourth gear; the fourth gear is fixedly connected to the rolling column; and the rolling column meshes with the conveyor belt.

3. The PCBA testing machine according to claim 2, characterized in that, The adjacent transmission submechanisms in the transmission mechanism share a support plate, and the support plate is provided with support holes for the rotating rod and the rolling column to rotate.

4. The PCBA testing machine according to claim 2, characterized in that, The transmission mechanism also includes a control panel that independently controls the operation of each drive motor.

5. The PCBA testing machine according to claim 1, characterized in that, The six-axis robot includes a rotating base, a folding rod, a tool head, and a multi-station manipulator. The rotating base is movably connected to one end of the folding rod, the other end of the folding rod is movably connected to one end of the tool head, and the other end of the tool head is fixedly connected to the multi-station manipulator. The multi-station manipulator includes a connecting frame, a vision sensor, and multiple gripping parts. The connecting frame is fixedly connected to the tool head, the vision sensor is fixedly connected to the connecting frame, and the multiple gripping parts are fixedly connected side-by-side to the connecting frame. The field of view of the vision sensor is parallel to the installation posture of the gripping parts.

6. The PCBA testing machine according to claim 5, characterized in that, The gripping part includes a cylinder and several suction heads, with the cylinder connected to the suction head pipes.

7. The PCBA testing machine according to claim 5, characterized in that, The connecting frame is fixedly connected to a supplementary light, and the supplementary light is located around the vision sensor.

8. The PCBA testing machine according to claim 1, characterized in that, The material handling device also includes a control box, and the six-axis robot is fixedly installed on the upper surface of the control box. The side of the control mechanism is provided with through holes for one end of the feeding conveyor and one end of the discharging conveyor to pass through.

9. The PCBA testing machine according to claim 1, characterized in that, The testing device includes a testing mechanism and a pull-out shielded box.

10. The PCBA testing machine according to claim 1, characterized in that, The discharge conveying device also includes a defective product discharge mechanism, which has the same structural composition as the transmission submechanism.

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