Chip appearance detection, classification and rejection equipment

Abstract

The utility model relates to the technical field of chip appearance detection and classification, and discloses a chip appearance detection, classification and rejection device which comprises a conveying belt used for conveying chips and a camera module arranged above the conveying belt and used for conducting appearance detection on the chips. A limiting base is arranged on the conveying belt, the chips are located in the limiting base, a moving chain is arranged above the conveying belt, guide frame plates are evenly arranged on the moving chain, and the chips located in the limiting base are pushed to the guide frame plates along with movement of the conveying belt. Limiting protrusions and limiting blocks which are used for limiting the chips in the advancing direction of the conveying belt are arranged on the guide frame plate. And a removing strip is arranged above the guide frame plate. According to the utility model, the chips are conveyed through the conveying belt and matched with the camera module for appearance identification, then the chips are classified and rejected through the rejecting equipment, the overall design structure is simple, and the classifying and rejecting cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of chip appearance detection and classification, in particular to a chip appearance detection and classification rejection device. Background Art

[0002] After the IC chip has completed the manufacturing process, it needs to be inspected by visual inspection, and the IC products with problems need to be sorted out after the inspection. In the existing technology, the chip inspection part is mainly completed by visual inspection equipment, and the sorting work is still mainly completed manually, which is not only inefficient but also prone to errors. Although there are some automatic classification and removal equipment for chips, the overall structural design is relatively complex, and the application and daily maintenance costs are high. Utility Model Content

[0003] 1. Technical issues to be solved

[0004] In view of the shortcomings of the prior art, the utility model provides a chip appearance detection classification and rejection device, which solves the problem that the efficiency of the existing chips is low after being identified and detected by visual inspection equipment, and the overall structural design is relatively complex and the cost is high.

[0005] (II) Technical solution

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A chip appearance inspection, classification and rejection device comprises a conveyor belt for conveying chips and a camera module arranged above the conveyor belt for performing appearance inspection on the chips, wherein the conveyor belt is evenly provided with limit bases with a single-side opening, the chip is located in the limit base, a moving chain is arranged above the conveyor belt, and a guide frame plate is evenly arranged on the moving chain, the chip located in the limit base is pushed to the guide frame plate as the conveyor belt moves, the guide frame plate is provided with limit protrusions and limit blocks for limiting the chip along the direction of travel of the conveyor belt; a rejection bar is arranged above the guide frame plate, and the rejection bar pushes the chip located between the limit protrusion and the limit block out of the guide frame plate under the drive of a linear module, and a discharge channel for receiving the chip is arranged on one side of the conveyor belt, a plurality of discharge channels are arranged at equal intervals, and the rejection bars are matched one by one with the discharge channels.

[0008] Preferably, the limiting base comprises an arc-shaped protrusion fixedly arranged on the surface of the conveyor belt and limiting strips symmetrically arranged on both sides of the front and rear of the arc-shaped protrusion, and the arc-shaped protrusion and the limiting strips are both made of rubber material.

[0009] Preferably, a support frame plate is provided on the outer side of the conveyor belt, the camera module is fixedly mounted on the support frame plate via a connecting frame plate, a central control device is fixedly mounted on the connecting frame plate, and the linear module is fixedly mounted on the support frame plate.

[0010] Preferably, the linear module is a driving cylinder, the reject bar is detachably connected to the piston end of the driving cylinder, and a through groove matching the reject bar is provided on the support frame plate.

[0011] Preferably, the movable chain is rotatably connected with a roller along the length direction, and trapezoidal blocks are symmetrically arranged on both sides of the roller. The trapezoidal blocks are all provided with chamfers, and the chip is pushed from the roller into the discharge channel by the removal bar.

[0012] Preferably, a connecting frame is sleeved in the middle of the discharge channel, the other end of the connecting frame is fixedly connected to the support frame plate, the upper part of the discharge channel is detachably connected to the support frame plate through a fixing frame, and a buffer layer is provided on the cavity wall of the discharge channel.

[0013] (III) Beneficial effects

[0014] The utility model has the following beneficial effects:

[0015] The chip appearance inspection, classification and rejection equipment is conveyed by the conveyor belt with the cooperation of the limit base, and then passes through the appearance inspection of the camera module. At this time, the chip is pushed along the guide frame plate to between the limit block and the limit protrusion and is limited by the limit base. At this time, after the linear module receives the signal of detection and recognition of the camera module, it drives the rejection bar to push the chip on the guide frame plate into the discharge channel, and the single-category chip discharge can be completed. Since multiple guide frames are evenly arranged on the moving chain, when it is recognized that the chip does not belong to the first category, the moving chain can be moved to drive the guide frame plate and the chip on it to the feed port of the next discharge channel, and then the chip is pushed into the discharge channel by the rejection bar, thereby completing the visual recognition of the chip appearance and the classification and rejection of the discharge. The overall structural design is simple, stable and reliable, does not require too much sensing and the participation of automated robotic arms, and has lower costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the utility model when viewed from above;

[0018] Figure 3 It is a schematic diagram of the structure layout of the conveyor belt and the moving chain of the utility model.

[0019] In the figure: 1. conveyor belt; 2. limiting base; 21. arc-shaped protrusion; 22. limiting strip; 3. chip; 4. camera module; 5. connecting frame plate; 6. central control device; 7. supporting frame plate; 8. driving cylinder; 9. rejecting strip; 10. moving chain; 11. guide frame plate; 12. limiting protrusion; 13. limiting block; 14. trapezoidal block; 15. roller; 16. connecting frame; 17. fixing frame; 18. discharge channel. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1 The utility model provides a technical solution: a chip 3 appearance detection classification and rejection device, comprising a conveyor belt 1 for conveying chips 3 and a camera module 4 arranged above the conveyor belt 1 for performing appearance detection on the chips 3, a single-side opening limiting base 2 is evenly arranged on the conveyor belt 1, the chip 3 is located in the limiting base 2, a moving chain 10 is arranged above the conveyor belt 1, and a guide frame plate 11 is evenly arranged on the moving chain 10, and the chip 3 located in the limiting base 2 is pushed to the conveyor belt 1 as the conveyor belt 1 moves. On the guide frame plate 11, there are arranged a limit protrusion 12 and a limit block 13 for limiting the chip 3 along the moving direction of the conveyor belt 1; a rejection bar 9 is arranged above the guide frame plate 11, and the rejection bar 9 pushes the chip 3 located between the limit protrusion 12 and the limit block 13 out of the guide frame plate 11 under the drive of the linear module. A discharge channel 18 for receiving the chip 3 is provided on one side of the conveyor belt 1, and a plurality of discharge channels 18 are arranged at equal intervals, and the rejection bars 9 are matched one by one with the discharge channels 18.

[0022] According to the utility model, after the conveyor belt 1 is conveyed by the stop base 2 and then inspected by the camera module 4, the chip 3 is pushed along the guide frame plate 11 to between the stop block 13 and the stop protrusion and is stopped under the push of the stop base 2. At this time, after receiving the detection and identification signal of the camera module 4, the linear module drives the rejection bar 9 to push the chip 3 on the guide frame plate 11 into the discharge channel 18, and the discharge of the single type of chip 3 can be completed. Since a plurality of guide frames 11 are evenly arranged on the moving chain 10, when it is identified that the chip 3 does not belong to the first category, the moving chain 10 can be moved to drive the guide frame plate 11 and the chip 3 thereon to the feed port of the next discharge channel 18, and then the chip 3 is pushed into the discharge channel 18 by the rejection bar 9, thereby completing the visual identification of the appearance of the chip 3 and the classification and rejection of the discharge. The overall structural design is simple, stable and reliable, does not require the participation of too many sensors and automated mechanical arms, and has lower costs.

[0023] Reference Figure 3 As shown, in this embodiment, the limiting base 2 includes an arc-shaped protrusion 21 fixedly arranged on the surface of the conveyor belt 1 and a limiting strip 22 symmetrically arranged on the front and rear sides of the arc-shaped protrusion 21, and the arc-shaped protrusion 21 and the limiting strip 22 are both made of rubber material. When the chip 3 contacts the guide frame plate 11, as the conveyor belt 1 continues to move, the limiting protrusion 12 can continuously push the chip 3 so that the chip 3 continues to move along the guide frame plate 11 to the guide frame plate 11; at the same time, due to the arrangement of the limiting strip 22, the position displacement of the chip 3 during the movement along the guide frame plate 11 can be effectively avoided, the stability of the chip 3 during the movement process is improved, and the chip 3 can be ensured to be stably limited by the limiting protrusion 12 and the limiting block 13 on the guide frame plate 11, so as to facilitate the subsequent removal bar 9 to push the chip 3 into the discharge channel 18. By using the arc-shaped protrusion 21 made of rubber material, the arc-shaped protrusion 21 can be deformed when the guide frame plate 11 contacts the arc-shaped protrusion 21, so that the entire limiting base 2 completely passes through the guide frame plate 11, so as to realize the cyclic conveyance of the chip 3 through the cyclic movement of the conveyor belt 1.

[0024] In this embodiment, a support frame plate 7 is provided on the outer side of the conveyor belt 1, a camera module 4 is fixedly mounted on the support frame plate 7 via a connecting frame plate 5, a central control device 6 is fixedly mounted on the connecting frame plate 5, and a linear module is fixedly mounted on the support frame plate 7.

[0025] Reference Figure 1As shown, in this embodiment, the linear module is a driving cylinder 8, and the rejection bar 9 is detachably connected to the piston end of the driving cylinder 8, and a through groove matching the rejection bar 9 is provided on the support frame plate 7. In practical applications, the chip 3 can accurately reach the preset position on the guide frame plate 11 by controlling the stroke of a single movement of the conveyor belt 1. At this time, the conveyor belt 1 stops, and the driving cylinder 8 is started in coordination, so that the rejection bar 9 pushes the chip 3 on the guide frame plate 11 into the discharge channel 18 for discharge. It is also possible to arrange a position switch on the limit block 13 to detect that the chip 3 has reached a fixed position on the guide frame plate 11, thereby stopping the conveyor belt 1 and starting the driving cylinder 8, which can also enable the rejection bar 9 to push the chip 3 into the discharge channel 18.

[0026] Reference Figure 3 As shown, in this embodiment, the moving chain 10 is connected to a roller 15 that is rotatably connected along the length direction, and trapezoidal blocks 14 are symmetrically arranged on both sides of the roller 15. The trapezoidal blocks 14 are all provided with chamfers, and the chip 3 slides from the roller 15 and is pushed into the discharge channel 18 under the push of the rejection bar 9. When the chip 3 slides along the roller 15, the chamfered trapezoidal blocks 14 on both sides of the roller 15 can play a role of limiting and guiding the movement of the chip 3, and due to the rotating roller 15, the friction force when pushing the chip 3 can be effectively reduced to avoid damaging the surface of the chip 3.

[0027] Reference Figure 2 As shown, in this embodiment, a connecting frame 16 is sleeved in the middle of the discharge channel 18, and the other end of the connecting frame 16 is fixedly connected to the support frame plate 7. The upper part of the discharge channel 18 is detachably connected to the support frame plate 7 through a fixing frame 17, and a buffer layer is provided on the cavity wall of the discharge channel 18. Due to the arrangement of the fixing frame 17 and the support frame plate 7, the stability of the installation of the discharge channel 18 is effectively guaranteed and the discharge channel 18 is convenient to be disassembled for maintenance. By arranging the buffer layer in the inner cavity of the discharge channel 18, the surface wear of the chip 3 during the discharge process can be effectively reduced to avoid the chip 3 from moving in the discharge channel 18. Commonly used buffer layers can be made of air bags, cushioning and shock-absorbing sponges or rubber materials.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A chip appearance inspection and classification and rejection device, comprising a conveyor belt for conveying chips and a camera module arranged above the conveyor belt for performing appearance inspection on the chips, characterized in that: Limiting bases with single-side openings are evenly arranged on the conveyor belt, and the chip is located in the limiting base. A moving chain is arranged above the conveyor belt, and a guide frame plate is evenly arranged on the moving chain. The chip located in the limiting base is pushed to the guide frame plate as the conveyor belt moves, and the guide frame plate is arranged with limiting protrusions and limiting blocks for limiting the chip along the traveling direction of the conveyor belt; a reject bar is arranged above the guide frame plate, and the reject bar pushes the chip located between the limiting protrusion and the limiting block out of the guide frame plate under the drive of the linear module; a discharge channel for receiving chips is provided on one side of the conveyor belt, and a plurality of discharge channels are arranged at equal intervals, and the reject bars are matched one by one with the discharge channels.

2. The chip appearance detection, classification and rejection device according to claim 1, characterized in that: The limiting base comprises an arc-shaped protrusion fixedly arranged on the surface of the conveyor belt and limiting strips symmetrically arranged on the front and rear sides of the arc-shaped protrusion, and the arc-shaped protrusion and the limiting strips are both made of rubber material.

3. The chip appearance detection, classification and rejection device according to claim 1, characterized in that: A support frame plate is arranged on the outer side of the conveyor belt, the camera module is fixedly mounted on the support frame plate via a connecting frame plate, a central control device is fixedly mounted on the connecting frame plate, and the linear module is fixedly arranged on the support frame plate.

4. The chip appearance detection, classification and rejection device according to claim 3, characterized in that: The linear module is a driving cylinder, the reject bar is detachably connected to the piston end of the driving cylinder, and a through groove matching the reject bar is provided on the support frame plate.

5. The chip appearance detection, classification and rejection device according to claim 4, characterized in that: The movable chain is rotatably connected with a roller along the length direction, and trapezoidal blocks are symmetrically arranged on both sides of the roller. The trapezoidal blocks are all provided with chamfers. The chip is pushed by the rejection bar to slide from the roller and push into the discharge channel.

6. The chip appearance detection, classification and rejection device according to claim 5, characterized in that: A connecting frame is sleeved in the middle of the discharge channel, the other end of the connecting frame is fixedly connected to the support frame plate, the upper part of the discharge channel is detachably connected to the support frame plate through a fixing frame, and a buffer layer is arranged on the cavity wall of the discharge channel.

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