Electronic part defect detecting and sorting equipment

Abstract

The utility model relates to electronic part defect detecting and sorting equipment which comprises a feeding mechanism, a discharging mechanism, a tray moving mechanism, a visual detecting mechanism and a sorting mechanism, and the feeding mechanism and the discharging mechanism are arranged at the input end and the output end of the tray moving mechanism respectively. The visual inspection mechanism and the sorting mechanism are distributed in the conveying direction of the tray moving mechanism. The visual detection mechanism comprises a shooting unit and a first moving unit, the shooting unit is arranged on the first moving unit, and the first moving unit is used for driving the shooting unit to move horizontally. The defect detection and sorting equipment is designed, based on the visual detection principle, defect detection of electronic products on the tray can be achieved, defective products are sorted through the sorting mechanism, traditional manual detection is replaced, the detection efficiency of electronic parts is improved, and the labor intensity of workers is reduced.

Description

Technical Field

[0001] This utility model relates to the field of electronic component manufacturing technology, specifically to an electronic component defect detection and sorting device. Background Technology

[0002] Traditional electronic component inspection is mostly done manually by visual inspection, which suffers from low efficiency, high error rate, and high labor intensity. Automated inspection equipment can replace the human eye, automatically completing the inspection or sorting of electronic components according to given inspection standards or requirements. This eliminates the need for manual labor in these tedious and repetitive inspection tasks, thereby significantly improving overall efficiency. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an electronic component defect detection and sorting device to address the above-mentioned shortcomings.

[0004] To solve the above technical problems, the present invention adopts the following technical solution:

[0005] An electronic component defect detection and sorting device includes a feeding mechanism, a discharging mechanism, a pallet moving mechanism, a vision inspection mechanism, and a sorting mechanism. The feeding mechanism and the discharging mechanism are respectively located at the input end and the output end of the pallet moving mechanism. The vision inspection mechanism and the sorting mechanism are distributed along the conveying direction of the pallet moving mechanism.

[0006] The visual inspection mechanism includes a shooting unit and a first moving unit. The shooting unit is disposed on the first moving unit, and the first moving unit is used to drive the shooting unit to move horizontally.

[0007] The sorting mechanism includes an actuator and a second moving unit. The actuator is mounted on the second moving unit, which can drive the actuator to move in three-dimensional space. The actuator is used to connect or disconnect electronic components in the tray on the tray moving mechanism.

[0008] Furthermore, the first moving unit includes a first translation mechanism and a second translation mechanism, the moving directions of the first translation mechanism and the second translation mechanism are perpendicular to each other, the second translation mechanism is disposed on the moving end of the first translation mechanism, and the shooting unit is disposed on the moving end of the second translation mechanism.

[0009] Furthermore, the shooting unit includes a camera and a light source, both of which are mounted on the first moving unit.

[0010] Furthermore, the second moving unit includes a third translation mechanism, a fourth translation mechanism, and a lifting mechanism. The moving directions of the third translation mechanism and the fourth translation mechanism are perpendicular to each other. The fourth translation mechanism is disposed on the moving end of the third translation mechanism, the lifting mechanism is disposed on the moving end of the fourth translation mechanism, and the actuator is disposed on the lifting end of the lifting mechanism.

[0011] Furthermore, the actuator includes a pneumatic suction head.

[0012] Furthermore, the actuator also includes a flexible end effector, which includes a first fixed frame, a guide rail, a spring, a slider, a third guide rod, and a limiting nut. The first fixed frame is mounted on the second moving unit, the guide rail is mounted vertically on the first fixed frame, the slider is slidably mounted on the guide rail, the pneumatic suction head is vertically mounted on the bottom of the slider, the bottom end of the third guide rod is mounted on the slider, and the top end passes through the first fixed frame. The spring is sleeved on the third guide rod, and both ends of the spring are connected to the slider and the first fixed frame, respectively. A limiting nut is provided at the top end of the third guide rod.

[0013] Furthermore, the pallet moving mechanism includes a belt mechanism and a drive mechanism. There are two belt mechanisms, which are arranged in parallel with a gap between them. The output end of the drive mechanism is connected to the belt mechanism.

[0014] Furthermore, both the loading and unloading mechanisms include a bin body, positioning baffles, a pushing mechanism, and a lifting mechanism. The bin body has an opening on the side facing the pallet moving mechanism, through which the pallet can pass. A portion of each of the two belt mechanisms extends into the inside of the bin body.

[0015] The compartment is equipped with a pushing mechanism, and the positioning baffle is disposed on the pushing mechanism. The pushing mechanism is used to push the positioning baffle to move horizontally, so that the positioning baffle extends into or moves out of the compartment.

[0016] The lifting mechanism is located below the storage compartment and is used to push the pallets inside the storage compartment to rise or fall.

[0017] Furthermore, the lifting mechanism includes a first lifting platform and a first lifting cylinder. The first lifting cylinder is located below the chamber body, and the first lifting platform is located on the first lifting cylinder. The first lifting platform can pass through the gap.

[0018] Furthermore, it also includes blocking mechanisms, comprising two blocking mechanisms, which are used to limit the pallet on the pallet moving mechanism to the visual inspection position and the sorting position, respectively.

[0019] Furthermore, the blocking mechanism includes a second lifting cylinder and a second lifting platform, a third lifting cylinder and a blocking plate. The second lifting cylinder and the third lifting cylinder are distributed along the conveying direction of the pallet moving mechanism. The second lifting cylinder and the third lifting cylinder are both located below the belt mechanism and in the gap. The second lifting platform is located on the second lifting cylinder, and the blocking plate is located on the third lifting cylinder. Both the second lifting platform and the blocking plate can pass through the gap.

[0020] Compared with the prior art, the present invention, by adopting the above technical solution, has the following advantages:

[0021] This invention designs a defect detection and sorting device. Based on the principle of visual inspection, it can detect defects in electronic products on a pallet and sort defective products through a sorting mechanism, replacing traditional manual inspection, thereby improving the inspection efficiency of electronic parts and reducing the intensity of manual labor.

[0022] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a three-dimensional structural diagram of the loading / unloading mechanism;

[0025] Figure 3 This is a front view of the loading / unloading mechanism;

[0026] Figure 4 This is a schematic diagram of the three-dimensional structure of a visual inspection agency;

[0027] Figure 5 This is a three-dimensional structural diagram of the sorting mechanism;

[0028] Figure 6 for Figure 5 Enlarged view of point A;

[0029] Figure 7 This is a three-dimensional structural diagram of the blocking mechanism.

[0030] The attached diagram lists the components represented by each number as follows:

[0031] 1. Feeding mechanism; 11. Bin body; 111. Opening; 12. Positioning baffle; 13. Pushing mechanism; 14. Lifting mechanism; 141. First lifting platform; 142. First lifting cylinder; 143. First base; 144. First guide rod; 2. Unloading mechanism; 3. Pallet moving mechanism; 31. Belt mechanism; 32. Drive mechanism; 33. Gap; 4. Vision inspection mechanism; 41. Imaging unit; 411. Camera; 412. Light source; 413. First fixing frame; 42. First moving unit; 421. First translation mechanism; 422. Second 5. Translation mechanism; 51. Sorting mechanism; 51. Actuator; 511. First fixed frame; 512. Pneumatic suction head; 513. Guide rail; 514. Spring; 515. Slider; 516. Third guide rod; 517. Limit nut; 52. Second moving unit; 521. Third translation mechanism; 522. Fourth translation mechanism; 523. Lifting mechanism; 6. Pallet; 7. Blocking mechanism; 71. Second lifting cylinder; 72. Second lifting platform; 721. Side guard; 73. Third lifting cylinder; 74. Blocking plate; 75. Second base; 76. Second guide rod. Detailed Implementation

[0032] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0033] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "clockwise" and "counterclockwise" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] Example 1:

[0035] like Figure 1 As shown, it includes:

[0036] A pallet moving mechanism 3 is arranged along the x-direction, and a feeding mechanism 1 is arranged at the input end of the pallet moving mechanism 3. The feeding mechanism 1 is used to transport the pallet 6 to the pallet moving mechanism 3. A vision inspection mechanism 4 and a sorting mechanism 5 are arranged sequentially along the conveying direction of the pallet moving mechanism 3. A unloading mechanism 2 is arranged at the output end of the pallet moving mechanism 3. The unloading mechanism 2 is used to receive and store the pallet 6 transported by the pallet moving mechanism 3.

[0037] like Figure 1As shown, the pallet moving mechanism 3 includes a belt mechanism 31 and a drive mechanism 32. There are two belt mechanisms 31, which are parallel to each other and have a gap 33 between them. The drive mechanism 32 is located below the belt mechanisms 31, and the belts of the two belt mechanisms 31 are connected to the output end of the drive mechanism 32. The drive mechanism 32 is used to drive the belts to rotate.

[0038] like Figure 2 and Figure 3 As shown, both the loading mechanism 1 and the unloading mechanism 2 include a bin body 11, a positioning baffle 12, a pushing mechanism 13 and a lifting mechanism 14. The bin body 11 is composed of three baffles. The side of the bin body 11 facing the pallet moving mechanism 3 has an opening 111 for the pallet 6 to pass through. Parts of the two belt mechanisms 31 extend into the inside of the bin body 11. Pallets 6 can be stacked inside the bin body 11.

[0039] Both sides of the compartment 11 are provided with a pushing mechanism 13, and the pushing mechanism 13 is provided with a positioning baffle 12. The two pushing mechanisms 13 are used to push the two positioning baffles 12 closer to each other or further away from each other, so that the positioning baffles 12 extend into the compartment 11 or move out of the compartment 11.

[0040] The lifting mechanism 14 includes a first lifting platform 141, a first lifting cylinder 142, a first base 143, and a first guide rod 144. The first base 143 is located below the chamber 11, the first lifting cylinder 142 is located on the first base 143, and the first lifting platform 141 is located on the first lifting cylinder 142. The first lifting cylinder 142 is used to drive the first lifting platform 141 to rise or fall, and the first lifting platform 141 can pass through the gap 33 and extend into the inside of the chamber 11.

[0041] During the loading process of the loading mechanism 1: First, the first lifting cylinder 142 drives the first lifting platform 141 to contact the lower surface of the lowest pallet 6 inside the bin 11 (or at a certain distance); Second, the two pushing mechanisms 13 drive the two positioning baffles 12 to move away from each other, so that both positioning baffles 12 are away from the inside of the bin 11, allowing the first lifting platform 141 to support all the pallets 6; Third, the first lifting platform 141 descends until the two positioning baffles 12 align with the gap between the lowest pallet 6 and the pallet 6 above it inside the bin 11; Fourth, the two pushing mechanisms 13 drive the two positioning baffles 12 to move closer to each other, so that both positioning baffles 12 extend into the inside of the bin 11 and are inserted into the gap to support the pallet above the positioning baffles 12. Then, the first lifting platform 141 drives the lowest pallet 6 inside the bin 11 to descend onto the belt mechanism 31, completing the transfer of the pallets inside the bin onto the belt mechanism 31.

[0042] By reversing the feeding step of the feeding mechanism 1, the pallet on the belt mechanism 31 can be transferred to the bin of the unloading mechanism 2.

[0043] like Figure 4 As shown, the visual inspection mechanism 4 includes an imaging unit 41 and a first moving unit 42. The imaging unit 41 is mounted on the first moving unit 42. Specifically:

[0044] The shooting unit 41 includes a camera 411, a light source 412 and a first fixing frame 413. The camera 411 and the light source 412 are both mounted on the first fixing frame 413, and the light source 412 is located below the camera 411.

[0045] The first moving unit 42 includes a first translation mechanism 421 and a second translation mechanism 422. The first translation mechanism 421 is arranged along the y-direction, and the second translation mechanism 422 is arranged along the x-direction. The first translation mechanism 421 is arranged above the belt mechanism 31, and the second translation mechanism 422 is arranged on the moving end of the first translation mechanism 421. The first fixing frame 413 is arranged on the moving end of the second translation mechanism 422.

[0046] During visual inspection: When the tray moves along the belt mechanism 31 to the visual inspection position (i.e., the area within the movement range of the shooting unit), the first moving unit 42 drives the shooting unit 41 to move along the x and y directions, and uses a visual inspection method (visual inspection refers to using machine vision products, such as CMOS and CCD, to convert the captured target into an image signal, which is then transmitted to a dedicated image processing system. Based on pixel distribution and information such as brightness and color, it is converted into a digital signal; the image system performs various operations on these signals to extract the features of the target, and compares the features of the target with a standard model to determine whether the target conforms to the standard. This method is a common technique in the field and will not be elaborated on here) to detect whether the electronic components on the tray 6 have defects, and to mark the defective products on the tray 6.

[0047] Furthermore, camera 411 is a 3D camera.

[0048] Furthermore, the imaging unit 41 also includes a projector that provides light through a light source. The projector projects a structured light pattern onto the electronic component to be inspected, and the camera is used to capture the reflected structured light pattern.

[0049] like Figure 5 and Figure 6 As shown, the sorting mechanism 5 includes an actuator 51 and a second moving unit 52. The actuator 51 is mounted on the second moving unit 52. Specifically:

[0050] like Figure 6As shown, the actuator 51 includes a pneumatic suction head 512 and a flexible end effector. The flexible end effector includes a first fixed frame 511, a guide rail 513, a spring 514, a slider 515, a third guide rod 516, and a limiting nut 517. The guide rail 513 is vertically mounted on the first fixed frame 511. The slider 515 is slidably mounted on the guide rail 513. The pneumatic suction head 512 is vertically mounted on the bottom of the slider 515. The bottom end of the third guide rod 516 is mounted on the slider 515, and the top end passes through the first fixed frame 511. The spring 514 is sleeved on the third guide rod 516, and the two ends of the spring 514 are respectively connected to the slider 515 and the first fixed frame 511. The top end of the third guide rod 516 is provided with a limiting nut 517.

[0051] The second moving unit 52 includes a third translation mechanism 521, a fourth translation mechanism 522, and a lifting mechanism 523. The third translation mechanism 521 is arranged along the y-direction, the fourth translation mechanism 522 is arranged along the x-direction, and the lifting mechanism 523 is arranged along the z-direction. The third translation mechanism 521 is located above the belt mechanism 31, the fourth translation mechanism 522 is located on the moving end of the third translation mechanism 521, the lifting mechanism 523 is located on the moving end of the fourth translation mechanism 522, and the first fixed frame 511 is located on the moving end of the lifting mechanism 523.

[0052] Specifically, an NG pallet for storing defective products is provided next to the sorting mechanism 5. When the pallet 6 moves along the pallet moving mechanism 3 to the sorting position (i.e., the area within the movement range of the actuator), the second moving unit 52 can drive the actuator 51 to move along the x, y or z direction, and the actuator 51 picks up the marked defective products on the pallet 6 and transfers the defective products to the NG pallet.

[0053] Example 2:

[0054] Without stopping the pallet moving mechanism 3, and to ensure that the pallets on the pallet moving mechanism 3 can stop at the visual inspection position and the sorting position, this embodiment adds a blocking mechanism 7 based on embodiment one.

[0055] There are two blocking mechanisms 7, which are respectively located at the vision inspection position and the sorting position, and are both located below the belt mechanism 31.

[0056] like Figure 7As shown, the blocking mechanism 7 includes a second lifting cylinder 71, a second lifting platform 72, a third lifting cylinder 73, a blocking plate 74, a second base 75, and a second guide rod 76. The second base 75 is located below the belt mechanism 31 and is positioned at the visual inspection position or the sorting position. The second lifting cylinder 71 and the third lifting cylinder 73 are both mounted on the second base 75 and are distributed along the conveying direction of the pallet moving mechanism 3. The second lifting platform 72 is mounted on the second lifting cylinder 71, and the blocking plate 74 is mounted on the third lifting cylinder 73. Both the second lifting platform 72 and the blocking plate 74 can pass through the gap 33.

[0057] When the pallet 6 moves to the vision inspection position or the sorting position, the third lifting cylinder 73 drives the blocking plate 74 to rise, so as to prevent the pallet 6 from continuing to move along the belt mechanism 31. The second lifting cylinder 71 drives the second lifting platform 72 to rise, so as to lift the pallet 6, so that the pallet 6 is separated from the belt mechanism 31 and kept in the vision inspection position or the sorting position until the vision inspection operation and the sorting operation are completed.

[0058] After completing the visual inspection and sorting operations, the second lifting platform 72 and the baffle 74 will descend below the belt mechanism 31, allowing the pallet 6 to return to the belt mechanism 31.

[0059] Furthermore, a retaining edge 721 is provided on the side of the second lifting platform 72 away from the blocking plate 74.

[0060] The above description provides examples of the preferred embodiments of this utility model. Any aspects not detailed herein are common knowledge to those skilled in the art. The scope of protection of this utility model is determined by the claims. Any equivalent modifications based on the technical teachings of this utility model are also within the scope of protection of this utility model.

Claims

1. An electronic component defect detection and sorting device, characterized in that, It includes a feeding mechanism (1), a discharging mechanism (2), a pallet moving mechanism (3), a vision inspection mechanism (4), and a sorting mechanism (5). The feeding mechanism (1) and the discharging mechanism (2) are respectively located at the input end and the output end of the pallet moving mechanism (3). The vision inspection mechanism (4) and the sorting mechanism (5) are distributed along the conveying direction of the pallet moving mechanism (3). The visual inspection mechanism (4) includes a shooting unit (41) and a first moving unit (42). The shooting unit (41) is disposed on the first moving unit (42), and the first moving unit (42) is used to drive the shooting unit (41) to move horizontally. The sorting mechanism (5) includes an actuator (51) and a second moving unit (52). The actuator (51) is mounted on the second moving unit (52). The second moving unit (52) can drive the actuator (51) to move in three-dimensional space. The actuator (51) is used to connect or disconnect electronic components in the tray (6) on the tray moving mechanism (3).

2. The electronic component defect detection and sorting equipment according to claim 1, characterized in that, The first moving unit (42) includes a first translation mechanism (421) and a second translation mechanism (422). The moving directions of the first translation mechanism (421) and the second translation mechanism (422) are perpendicular to each other. The second translation mechanism (422) is disposed on the moving end of the first translation mechanism (421), and the shooting unit (41) is disposed on the moving end of the second translation mechanism (422).

3. The electronic component defect detection and sorting equipment according to claim 1, characterized in that, The shooting unit (41) includes a camera (411) and a light source (412), both of which are mounted on the first moving unit (42).

4. The electronic component defect detection and sorting equipment according to claim 1, characterized in that, The second moving unit (52) includes a third translation mechanism (521), a fourth translation mechanism (522), and a lifting mechanism (523). The moving directions of the third translation mechanism (521) and the fourth translation mechanism (522) are perpendicular to each other. The fourth translation mechanism (522) is located on the moving end of the third translation mechanism (521), and the lifting mechanism (523) is located on the moving end of the fourth translation mechanism (522). The actuator (51) is located on the lifting end of the lifting mechanism (523).

5. The electronic component defect detection and sorting equipment according to claim 1, characterized in that, The actuator (51) includes a pneumatic suction head (512).

6. The electronic component defect detection and sorting equipment according to claim 5, characterized in that, The actuator further includes a flexible end effector, which includes a first fixed frame (511), a guide rail (513), a spring (514), a slider (515), a third guide rod (516), and a limiting nut (517). The first fixed frame (511) is mounted on the second moving unit (52). The guide rail (513) is mounted vertically on the first fixed frame (511). The slider (515) is slidably mounted on the guide rail (513). The pneumatic suction head (512) is vertically mounted on the bottom of the slider (515). The bottom end of the third guide rod (516) is mounted on the slider (515), and the top end passes through the first fixed frame (511). The spring (514) is sleeved on the third guide rod (516), and the two ends of the spring (514) are respectively connected to the slider (515) and the first fixed frame (511). The top end of the third guide rod (516) is provided with a limiting nut (517).

7. The electronic component defect detection and sorting equipment according to claim 1, characterized in that, The pallet moving mechanism (3) includes a belt mechanism (31) and a drive mechanism (32). There are two belt mechanisms (31), which are arranged in parallel and have a gap (33) between them. The output end of the drive mechanism (32) is connected to the belt mechanism (31).

8. The electronic component defect detection and sorting equipment according to claim 7, characterized in that, Both the loading mechanism (1) and the unloading mechanism (2) include a bin body (11), a positioning baffle (12), a pushing mechanism (13), and a lifting mechanism (14). The bin body (11) has an opening (111) on the side facing the pallet moving mechanism (3). The pallet (6) can pass through the opening (111). Parts of the two belt mechanisms (31) extend into the inside of the bin body (11). The compartment (11) is provided with a pushing mechanism (13), and the positioning baffle (12) is disposed on the pushing mechanism (13). The pushing mechanism (13) is used to push the positioning baffle (12) to translate, so that the positioning baffle (12) extends into or moves out of the compartment (11). The lifting mechanism (14) is located below the storage body (11) and is used to push the pallet (6) inside the storage body (11) up or down.

9. The electronic component defect detection and sorting equipment according to claim 8, characterized in that, The lifting mechanism (14) includes a first lifting platform (141) and a first lifting cylinder (142). The first lifting cylinder (142) is located below the chamber (11), and the first lifting platform (141) is located on the first lifting cylinder (142). The first lifting platform (141) can pass through the gap (33).

10. The electronic component defect detection and sorting equipment according to claim 1, characterized in that, It also includes a blocking mechanism (7), which comprises two blocking mechanisms (7), which are used to limit the pallet (6) on the pallet moving mechanism (3) to the visual detection position and the sorting position, respectively.

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