Automatic product height mixing prevention detection device and method

Abstract

The invention discloses a product height anti-mixing automatic detection device and method, and relates to the technical field of anti-mixing detection, and the device comprises a code scanning gun, a flat vibration platform and a conveyor belt which are sequentially arranged along the moving direction of a product; an AOI detection lens is arranged above the flat vibration platform, a height detection device is arranged above the conveying belt, the height detection device comprises an upper infrared sensor and a lower infrared sensor which are arranged in parallel from top to bottom, and the height of the upper infrared sensor and the height of the lower infrared sensor are adjustable. The method solves the problems that in the prior art, height detection adopts a manual proportion extraction mode, all products are difficult to cover, appearance detection depends on manual visual inspection, the efficiency is low, missing detection is easily caused by fatigue and negligence, the full-detection requirement of batch production cannot be met, and the risk that unqualified products flow out exists; detection parameters need to be manually adjusted when products of multiple specifications are switched, operation is tedious, personal errors are prone to being introduced, and adaptability is poor.

Description

Technical Field

[0001] This invention relates to the field of anti-mixing detection technology, specifically to an automatic detection device and method for high-level anti-mixing of products. Background Technology

[0002] With the rapid development of the semiconductor industry, the demand for multi-scenario integration of similar semiconductor chips is increasing, giving rise to a large number of heat sink products with identical appearances and differences only in height parameters. The production and testing of these products face significant challenges.

[0003] As existing devices are used, the shortcomings of this technology have gradually become apparent, mainly in the following aspects: First, the height inspection uses a manual proportional sampling method, which is difficult to cover all products. The appearance inspection relies on manual visual inspection, which is inefficient and prone to missed inspections due to fatigue or negligence. It cannot meet the full inspection requirements of mass production and there is a risk of defective products being released.

[0004] Secondly, products of different heights and specifications have no difference in appearance, and manual sorting is prone to mixing of materials, which affects the accuracy of subsequent assembly and the reliability of products. The traditional vibratory feeder method is prone to causing friction damage to the product surface, affecting the appearance quality of the product.

[0005] Third, when switching between products of different specifications, the testing parameters need to be adjusted manually, which is cumbersome and prone to human error, resulting in poor adaptability.

[0006] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Summary of the Invention

[0008] In view of the shortcomings of the existing technology, the present invention solves the problems of the traditional technology, which adopts a manual proportional sampling method for height detection, which is difficult to cover all products; appearance inspection relies on manual visual inspection, which is inefficient and prone to missed inspection due to fatigue and negligence, and cannot meet the full inspection requirements of mass production, posing a risk of defective products flowing out; and when switching between multiple product specifications, the detection parameters need to be manually adjusted, which is cumbersome, prone to human error, and has poor adaptability.

[0009] To address the above problems, the present invention provides the following technical solution: The automatic detection device for preventing material mixing at product height includes a barcode scanner, a vibrating platform, and a conveyor belt arranged sequentially along the product movement direction. An AOI detection lens is installed above the vibrating platform, and a height detection device is installed above the conveyor belt. The height detection device includes an upper infrared sensor and a lower infrared sensor arranged side by side from top to bottom, and the heights of the upper and lower infrared sensors are adjustable.

[0010] As an optimized solution, a robotic arm is provided between the vibration platform and the conveyor belt to pick up the products on the vibration platform and transfer them onto the conveyor belt.

[0011] As an optimized solution, qualified material trays and abnormal material trays are respectively provided on both sides of the conveyor belt.

[0012] As an optimized solution, the conveyor belt's end area is equipped with a robotic arm II that picks up products from the conveyor belt and places them into a qualified product tray or an abnormal product tray.

[0013] As an optimized solution, the height detection device includes sensor fixing rails vertically arranged on both sides of the conveyor belt, and each sensor fixing rail is equipped with an upper infrared sensor and a lower infrared sensor.

[0014] This invention also discloses an automatic detection method for highly anti-mixing products, comprising the following steps: S1: Work order scanning and information matching: The barcode scanner scans the product work order. Based on the scanned information, the control unit calls the relevant product parameters in the storage unit and sends them to the display unit. The height positions of the upper infrared sensor and the lower infrared sensor are adjusted. The upper infrared sensor is marked with the first height value T1, and the lower infrared sensor is marked with the first height value T2. S2: Flat vibratory feeding and AOI appearance full inspection: The flat vibratory platform feeds the product with the top surface facing up. When the product moves to the area below the AOI inspection lens, the AOI inspection lens detects whether the appearance of the product with the top surface facing up is qualified and transmits the data to the storage unit for counting and the transmission control unit. S3: Automatic adaptation of height detection parameters: The conveyor belt carries the product to a position below the height detection device, determines whether the product is within the detection range of the upper and lower infrared sensors, and transmits the information to the storage unit for counting and the transmission control unit. S4: Sorting and tray storage: If T2≤actual product height≤T1, the product is qualified, and the second robot arm picks up the product and puts it into the qualified product tray; if the actual product height<T2 or the actual product height>T1, the product is abnormal, and the second robot arm picks up the product and puts it into the abnormal product tray.

[0015] As an optimized solution, in step S1, the operator checks whether the information is consistent with the work order. If they are consistent, the equipment starts running; if they are inconsistent, the product work order is rescanned using a barcode scanner.

[0016] As an optimized solution, in step S1, according to the instruction transmitted by the product information control unit to the sensor fixed slide rail, the upper infrared sensor is moved to the upper limit position of the product height and marked with the first height value T1, and the lower infrared sensor is moved to the lower limit position of the product height and marked with the second height value T2.

[0017] As an optimized solution, in step S2, if the appearance of the product with the top face facing up is qualified by the AOI detection lens, the robot arm will pick up the product and put it onto the conveyor belt; if it is not qualified, the robot arm will pick up the product and put it into the NG product placement area.

[0018] As an optimized solution, in step S2, if no product on the vibration platform has its top face facing up, the vibration machine will start vibrating again until a product with its top face facing up appears.

[0019] Compared with the prior art, the beneficial effects of the present invention are: Information entry and parameter matching: The work order QR code is scanned by a barcode scanner. The control unit identifies the product information and retrieves the upper and lower limits of height (T1 is the upper limit and T2 is the lower limit) and appearance defect illustrations from the storage unit. The screen display unit displays the product information for verification. Once the verification is consistent, the equipment starts. The flat vibratory feeding and appearance inspection process involves the flat vibratory machine vibrating to ensure the top surface of the product is facing upwards. The AOI inspection lens performs a full inspection of the product's appearance and compares it with the defective images. The robotic arm then transfers the appearance-compliant products to the conveyor belt, while the non-compliant products are transferred to the NG (non-compliant) product placement area. The height detection parameters are adjusted, and the sensor fixed slide rail automatically moves the upper infrared sensor to position T1 and the lower infrared sensor to position T2 according to the product information, thus completing the detection parameter adaptation. Height determination and automatic sorting: The conveyor belt transports the products to the height inspection device. The infrared sensor detects the actual height of the product. If T2≤actual height≤T1, the product is judged to be qualified; otherwise, it is NG. The second robot transfers qualified products to the qualified product tray and NG products to the abnormal product tray. Work order completion and notification: The system counts the number of qualified / NG products in appearance and the number of qualified / NG products in height in real time and displays them on the screen unit. When the number of qualified products reaches the work order requirements, the screen unit displays that the work is completed and sounds a buzzer alarm. The flat vibrating machine flips the product by vibrating it in a plane. The flat vibrating method is different from the traditional vibrating plate method. There is no friction between the product and the machine plane, which can minimize secondary damage to the product surface. With 100% inspection and no omissions, AOI appearance inspection combined with height inspection replaces manual sampling, preventing defective products and mixed materials from leaving the market, and increasing the product qualification rate to 99.9%. Efficiency is greatly improved. The automated feeding, inspection and sorting process is more than 5 times more efficient than manual inspection, which is suitable for mass production needs. The product is well protected, and the flat vibration feeding method avoids surface friction damage, ensuring the product's appearance quality; Multi-specification adaptation, automatic parameter matching and automatic sensor position adjustment, no manual adjustment required, quick adaptation to products of different height specifications, changeover time ≤5 minutes; It is easy to operate and trace, with QR code scanning and data visualization, reducing reliance on manual labor, and ensuring traceability of test data for easy production management. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0021] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the abnormal material tray position from a top view of the present invention; Figure 3 This is a schematic diagram of the height detection device for the product of the present invention; Figure 4 This is a schematic diagram of the detection method of the present invention.

[0022] In the diagram: 1-Vibration platform, 2-AOI inspection lens, 3-Robot arm one, 4-Robot arm two, 5-Conveyor belt, 6-Height detection device, 7-Qualified product tray, 8-Bar scanner, 9-Abnormal product tray; 10-Sensor fixing rail; 11-Upper infrared sensor; 12-Lower infrared sensor; 13-Product. Detailed Implementation

[0023] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0024] like Figures 1 to 4 As shown, the automatic detection device for preventing mixing of materials at product height includes a barcode scanner 8, a flat vibration platform 1, and a conveyor belt 5 arranged sequentially along the moving direction of the product 13; an AOI detection lens 2 is provided above the flat vibration platform 1, and a height detection device 6 is provided above the conveyor belt 5. The height detection device 6 includes an upper infrared sensor 11 and a lower infrared sensor 12 arranged side by side from top to bottom, and the heights of the upper infrared sensor 11 and the lower infrared sensor 12 are adjustable.

[0025] A robotic arm 3 is provided between the vibration platform 1 and the conveyor belt 5 to pick up the product 13 on the vibration platform 1 and transfer it to the conveyor belt 5.

[0026] The conveyor belt 5 has qualified material trays 7 and abnormal material trays 9 on both sides.

[0027] The conveyor belt 5 is equipped with a robotic arm 4 at the end of the conveyor belt 5 to pick up the products 13 on the conveyor belt 5 and transfer them to the qualified product tray 7 or the abnormal product tray 9.

[0028] The height detection device 6 includes sensor fixing slide rails 10 that are vertically arranged on both sides of the conveyor belt 5, and each sensor fixing slide rail 10 is provided with an upper infrared sensor 11 and a lower infrared sensor 12.

[0029] This invention also discloses an automatic detection method for high-level anti-mixing of materials in product 13, comprising the following steps: S1: Work order scanning and information matching: The barcode scanner 8 scans the work order of product 13. According to the scanned information, the control unit calls the relevant product 13 parameters in the storage unit and sends them to the display unit. The height positions of the upper infrared sensor 11 and the lower infrared sensor 12 are adjusted. The upper infrared sensor 11 is marked with the first height value T1, and the lower infrared sensor 12 is marked with the first height value T2. S2: Flat vibration feeding and AOI appearance full inspection: Flat vibration platform 1 feeds the product 13 with the TOP side facing up. When the product 13 moves to the bottom of the AOI inspection lens 2, the AOI inspection lens 2 detects whether the appearance of the product 13 with the TOP side facing up is qualified and transmits it to the storage unit for counting and the transmission control unit. S3: Automatic adaptation of height detection parameters: The conveyor belt 5 carries the product 13 to the area below the height detection device 6, determines whether the product 13 is within the detection range of the upper infrared sensor 11 and the lower infrared sensor 12, and transmits the data to the storage unit for counting and the transmission control unit. S4: Sorting and tray storage: If T2≤actual product 13 height≤T1, then product 13 is qualified, and robot arm 2 4 picks up product 13 and puts it into qualified product tray 7; if actual product 13 height<T2 or actual product 13 height>T1, then product 13 is abnormal, and robot arm 2 4 picks up product 13 and puts it into abnormal product tray 9.

[0030] Step S1: The operator checks whether the information matches the work order. If they match, the equipment starts running. If they do not match, the operator rescans the work order for product 13 using barcode scanner 8.

[0031] Step S1: According to the instruction transmitted by the product 13 information control unit to the sensor fixing slide rail 10, the upper infrared sensor is moved to the upper limit position of the product 13 height and marked with the first height value T1, and the lower infrared sensor 12 is moved to the lower limit position of the product 13 height and marked with the second height value T2.

[0032] In step S2, the AOI inspection lens 2 detects the appearance of the product 13 with the TOP face up. If the appearance is qualified, the robot arm 3 picks up the product 13 and puts it onto the conveyor belt 5. If the appearance is not qualified, the robot arm 3 picks up the product 13 and puts it into the NG product placement area.

[0033] Step S2: If product 13 in the vibration platform 1 does not have a top face up, the vibration machine will start vibrating again until product 13 with the top face up appears.

[0034] The working principle of this device is as follows: Information entry and parameter matching: The work order QR code is scanned by barcode scanner 8. The control unit identifies the product 13 information and retrieves the upper and lower limits of height (T1 is the upper limit and T2 is the lower limit) and appearance defect illustrations from the storage unit. The screen display unit displays the product 13 information for verification. After verification, the equipment starts. The flat vibratory feeding and appearance inspection are performed. The flat vibratory machine vibrates to make the top side of product 13 face up. The AOI inspection lens 2 performs a full inspection of the appearance of product 13 and compares it with the defective image. The robot arm 3 transfers the appearance qualified product 13 to the conveyor belt 5, and the unqualified product 13 is transferred to the NG product placement area. The height detection parameters are adjusted. Based on the product information 13, the sensor fixed slide rail 10 automatically moves the upper infrared sensor to position T1 and the lower infrared sensor 12 to position T2 to complete the detection parameter adaptation. Height determination and automatic sorting: Conveyor belt 5 transports product 13 to height inspection device. Infrared sensor detects the actual height of product 13. If T2≤actual height≤T1, it is judged as qualified; otherwise, it is NG. Robot arm 4 transfers qualified product 13 to qualified product tray 7 and NG product 13 to abnormal product tray 9. Work order completion and notification: The system counts the number of acceptable / unacceptable products in appearance and the number of acceptable / unacceptable products in height in real time and displays them on the screen unit. When the number of acceptable products reaches the work order requirements, the screen unit displays that the work is completed and issues a buzzer alarm.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. An automatic detection device for preventing product mixing, characterized in that: The device includes a barcode scanner (8), a flat vibration platform (1), and a conveyor belt (5) arranged sequentially along the moving direction of the product (13); an AOI detection lens (2) is provided above the flat vibration platform (1), and a height detection device (6) is provided above the conveyor belt (5). The height detection device (6) includes an upper infrared sensor (11) and a lower infrared sensor (12) arranged side by side from top to bottom. The heights of the upper infrared sensor (11) and the lower infrared sensor (12) are adjustable.

2. The automatic detection device for preventing mixing of materials in products according to claim 1, characterized in that: A robotic arm (3) is provided between the vibration platform (1) and the conveyor belt (5) to pick up the product (13) on the vibration platform (1) and transfer it to the conveyor belt (5).

3. The automatic detection device for preventing material mixing of products according to claim 1, characterized in that: The conveyor belt (5) is equipped with qualified material trays (7) and abnormal material trays (9) on both sides.

4. The automatic detection device for preventing mixing of materials in products according to claim 1, characterized in that: The conveyor belt (5) is equipped with a robotic arm (4) at the end of the conveyor belt (5) to pick up the products (13) on the conveyor belt (5) and place them into the qualified product tray (7) or the abnormal product tray (9).

5. The automatic detection device for preventing mixing of materials in products according to claim 1, characterized in that: The height detection device (6) includes sensor fixing slide rails (10) that are vertically arranged on both sides of the conveyor belt (5), and each sensor fixing slide rail (10) is provided with an upper infrared sensor (11) and a lower infrared sensor (12).

6. An automatic detection method for highly anti-mixing products, characterized in that: The method employs the automatic product height anti-mixing detection device as described in any one of claims 1-5, and includes the following steps: S1: Work order scanning and information matching: The barcode scanner (8) scans the product (13) work order. According to the scan information, the control unit calls the relevant product (13) parameters in the storage unit and sends them to the display unit. The height positions of the upper infrared sensor (11) and the lower infrared sensor (12) are adjusted. The upper infrared sensor (11) marks the first height value T1, and the lower infrared sensor (12) marks the first height value T2. S2: Flat vibration feeding and AOI appearance full inspection: Flat vibration platform (1) feeds the product (13) with the TOP side facing up. When the product (13) moves to the AOI inspection lens (2), the AOI inspection lens (2) detects whether the appearance of the product (13) with the TOP side facing up is qualified and transmits it to the storage unit for counting and the transmission control unit. S3: Automatic adaptation of height detection parameters: The conveyor belt (5) carries the product (13) to the height detection device (6), determines whether the product (13) is within the detection range of the upper infrared sensor (11) and the lower infrared sensor (12), and transmits the data to the storage unit for counting and the transmission control unit. S4: Sorting and tray storage: If T2≤actual product (13) height≤T1, then product (13) is qualified, and robot arm two (4) picks up product (13) into qualified product tray (7); if actual product (13) height<T2 or actual product (13) height>T1, then product (13) is abnormal, and robot arm two (4) picks up product (13) into abnormal product tray (9).

7. The automatic detection method for preventing product mixing according to claim 6, characterized in that: In step S1, the operator checks whether the information is consistent with the work order. If they are consistent, the equipment will start running. If they are inconsistent, the product (13) work order will be rescanned by barcode scanner (8).

8. The automatic detection method for preventing product mixing according to claim 6, characterized in that: In step S1, according to the instruction transmitted from the product (13) information control unit to the sensor fixed slide rail (10), the upper infrared sensor is moved to the upper limit position of the product (13) height and marked with the first height value T1, and the lower infrared sensor (12) is moved to the lower limit position of the product (13) height and marked with the second height value T2.

9. The automatic detection method for preventing product mixing according to claim 6, characterized in that: In step S2, the AOI detection lens (2) detects the appearance of the product (13) with the TOP face up. If the appearance is qualified, the robot arm (3) picks up the product (13) and puts it onto the conveyor belt (5). If the appearance is not qualified, the robot arm (3) picks up the product (13) and puts it into the NG product placement area.

10. The automatic detection method for preventing product mixing according to claim 6, characterized in that: In step S2, if the product (13) in the flat vibration platform (1) does not have a top face up, the flat vibration machine will start vibrating again until a product (13) with the top face up appears.

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