Fully automatic temperature and humidity sensor assembly and sorting system and assembly and sorting method

Abstract

The present invention discloses a fully automatic temperature and humidity sensor assembly and sorting system and an assembly and sorting method, comprising: a central processing system, and a feeding system, an assembly system, a sorting system and a classified discharging system connected to the central processing system. The assembly and sorting system replaces traditional manual operations and effectively improves work efficiency and production capacity. By automatically feeding and feeding the PCB board, the upper shell of the sensor and the lower shell of the sensor to the workstation turntable for standby, the folding device automatically disassembles the PCB board into PCB small boards, and the assembly manipulator obtains the video signal and performs image comparison in the central processing system and then quickly assembles the finished product. After the image comparison, the highest assembly accuracy is obtained, the error rate is reduced, and the qualified rate of the product is strictly controlled; the sorting device screens the finished product into qualified products and unqualified products, and finally the qualified products are packaged, and the unqualified products are picked out and disassembled and returned to the assembly production line, so as to avoid the unqualified products from being mixed with the qualified products, and greatly reduce the material loss and manufacturing cost.

Description

[Technical field]

[0001] The invention belongs to the technical field of electronic product production and processing, and in particular relates to a full-automatic temperature and humidity sensor assembly and sorting system and an assembly and sorting method. [Background technology]

[0002] The temperature and humidity sensor is assembled from a circuit board and upper and lower shells. For most companies, manual assembly is inefficient. The assembly process is prone to defects such as poor assembly due to differences in individual work habits and increased fatigue due to long working hours, and the yield rate is high. The production and processing capacity is low and the labor cost is high.

[0003] Modern industrial automation technology is becoming more and more advanced. Traditional manual work can hardly meet the needs of large-scale production. Automated control has many advantages such as high efficiency and high working precision. Therefore, a method of operation that can replace manual work to automatically perform production and assembly is needed to improve enterprise production capacity and market competitiveness. [Summary of the invention]

[0004] In order to solve the existing problems in the background technology, the present invention provides a fully automatic temperature and humidity sensor assembly and sorting system and assembly and sorting method, which automatically realize the assembly of temperature and humidity sensors and the sorting and screening of qualified products, with high operating efficiency, improved batch production capacity, high assembly accuracy, and improved product qualification rate.

[0005] The present invention adopts the following technical solutions:

[0006] The fully automatic temperature and humidity sensor assembly and sorting system is used to assemble and sort the temperature and humidity sensors. The temperature and humidity sensors are assembled from a PCB board, a sensor upper shell and a sensor lower shell. The sorting and assembly system includes: a central processing system, and a loading system, an assembly system, a sorting system and a classification and discharging system connected to the central processing system. The loading system transports the PCB board, the sensor upper shell and the sensor. The assembly system breaks the PCB board into PCB small boards. The assembly system identifies and sequentially selects the sensor lower shell, the PCB small board and the sensor lower shell for assembly and pressing. The sorting system captures the finished video signal of the temperature and humidity sensor and compares the image with the central processing system, sorts out qualified products and unqualified products and transmits them to the classification and discharging system for corresponding classification.

[0007] Furthermore, the feeding system is an automatic feeding device, which has a connected vacuum suction component and a transmission belt. The vacuum suction component sucks the PCB board, the sensor upper shell and the sensor lower shell and sends them to the conveyor belt for feeding.

[0008] Furthermore, the assembly system includes a first conveying device, a folding plate device, a second conveying device, a first mechanical gripper, a workstation turntable, a second mechanical gripper, a tooling fixture and an assembly robot. The first conveying device, the second conveying device, the folding plate device, the first mechanical gripper, the second mechanical gripper, the tooling fixture and the assembly robot are all provided with object sensing sensors, the folding plate device and the workstation turntable are provided with contact sensors, the workstation turntable and the tooling fixture are also provided with a position switch, the folding plate device is provided with a folding plate blade below the object sensing sensor and the contact sensor, and the platform below the folding plate blade is provided with a proximity switch.

[0009] Furthermore, the sorting system includes a sorting device, which includes an infrared receiver, a sorting gripper, an image signal processor, a camera and an infrared transmitter. The image signal processor is connected to the camera, the infrared receiver is connected to the infrared transmitter signal, and an object sensing sensor and a contact sensor are provided on the same side of the sorting gripper, and a camera is provided on the other side.

[0010] Furthermore, the classification and discharging system includes a discharging device having an object sensing sensor.

[0011] Furthermore, the first mechanical gripper and the second mechanical gripper are the same, both comprising a base and a slide rail that can slide vertically or horizontally along the base, a grabbing claw is provided at the end of the slide rail, an object sensing sensor and a pulse sensor are provided on the same side of the grabbing claw, and a camera is provided on the other side.

[0012] Furthermore, the assembly robot includes a base and a slide rail that can slide vertically or horizontally along the base. The end of the slide rail is provided with an assembly head, the bottom of the assembly head is a pin, an object sensing sensor and a pulse sensor are provided on the same side of the assembly head, and a camera is provided on the other side.

[0013] A fully automatic temperature and humidity sensor assembly and sorting method, comprising a fully automatic temperature and humidity sensor assembly and sorting system, the assembly and sorting method comprising:

[0014] S1: The automatic feeding device sucks the PCB board, the sensor upper shell and the sensor lower shell through the vacuum suction component, and transports them to the first conveying device through the conveyor belt. When the object sensing sensor on the first conveying device senses the sensor upper shell and the sensor lower shell, it triggers the conveyor belt to stop feeding. When the proximity switch on the folding device touches the PCB board, the folding blade breaks the PCB board into small PCB boards, and then conveys them to the second conveying device. When the object sensing sensor of the second conveying device senses the small PCB board, the feeding is stopped;

[0015] S2: After the object sensing sensor on the first mechanical gripper senses the PCB board, the sensor upper shell or the sensor lower shell, the pulse sensor sends a pulse signal to the camera, which receives and captures the signal to form a video signal. After the video signal is transmitted to the central processing system for image comparison, the first mechanical gripper is driven to grab the PCB board, the sensor upper shell and the sensor lower shell onto the corresponding station turntable;

[0016] S3: The workstation turntable rotates once, and the contact sensor generates a pulse signal to be received by the object sensing sensor on the second mechanical gripper. The pulse sensor triggers the camera to capture the lower shell of the sensor, transmits the captured video signal to the central processing system for image comparison, and drives the second mechanical gripper to grab the lower shell of the sensor and fix it in the fixture;

[0017] S4: When the contact sensor on the fixture senses the sensor lower shell, the sensor lower shell is fixed, and the second mechanical gripper repeats step S3 to grab the PCB small board to the sensor lower shell corresponding to the fixture;

[0018] S5: When the object sensing sensor of the assembly robot senses that there is a PCB on the fixture, it sends a pulse signal to the camera to capture and shoot the PCB. After sending the video signal to the central processing system for image comparison, the assembly robot drives the ejector to press the PCB into the lower shell of the sensor.

[0019] S6: Repeat step S3 to grab the upper shell of the sensor and place it on the PCB board accordingly, and then complete the assembly of the upper shell of the sensor in step S5;

[0020] S7: The camera on the sorting device takes pictures of the assembled temperature and humidity sensor products, and compares the video signal in the central processing system. After the comparison is successful, an infrared signal is sent. After the infrared receiver receives the infrared signal, the sorting claw is activated to sort out qualified products and unqualified products. The discharging device transports the finished products, qualified products are packaged, and unqualified products need to be manually disassembled and returned to the automatic loading device for reassembly.

[0021] The beneficial effects of the present invention are as follows:

[0022] This assembly and sorting system is fully automated, replacing traditional manual operations and effectively improving work efficiency and production capacity.

[0023] The PCB board, sensor upper shell and sensor lower shell are automatically loaded and fed to the workstation turntable for standby use. The folding device automatically disassembles the PCB board into small PCB boards. The assembly robot obtains the video signal and performs image comparison in the central processing system before quickly assembling the finished product. The highest assembly accuracy is obtained through image comparison, the error rate is reduced, and the qualified rate of the product is strictly controlled. The sorting device screens the finished products into qualified and unqualified products. Finally, the qualified products are packaged and the unqualified products are picked out, disassembled and returned to the assembly production line, so as to avoid the unqualified products being mixed with the qualified products and greatly reduce material loss and manufacturing costs.

Brief Description of the Drawings

[0024] Figure 1 A schematic diagram of the process flow of the fully automatic temperature and humidity sensor assembly and sorting system of the present invention;

[0025] Figure 2 It is a structural diagram of the PCB board;

[0026] Figure 3 It is a schematic diagram of the structure of the upper shell of the sensor;

[0027] Figure 4 It is a schematic diagram of the structure of the lower shell of the sensor;

[0028] Figure 5 It is a structural schematic diagram of an automatic feeding device;

[0029] Figure 6 It is a schematic diagram of the structure of the first transmission device and the second transmission device;

[0030] Figure 7 is a schematic diagram of the structure of the folding plate device;

[0031] Figure 8 is a schematic diagram of the structure of the first mechanical gripper and the second mechanical gripper;

[0032] Fig. 9 It is a structural diagram of the workstation turntable;

[0033] Fig.10 It is a schematic diagram of the structure of the fixture;

[0034] Fig.11 It is a schematic diagram of the structure of the assembly robot;

[0035] Fig.12 It is a schematic diagram of the structure of the sorting device;

[0036] Fig.13 It is a structural schematic diagram of the discharging device. [Specific implementation method]

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0039] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0040] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0042] As we all know, the temperature and humidity sensor is assembled by PCB board, sensor upper shell and sensor lower shell. Most of the existing factories adopt manual assembly due to the constraints of site scale and cost. This operation mode not only needs to pay more labor wages, but also wastes more labor due to the strong replaceability of work. In addition, people themselves are prone to fatigue after working for a long time, which is not conducive to the accuracy of assembly, and often leads to low product qualification rate and material loss. In this regard, a fully automatic temperature and humidity sensor assembly and sorting system is designed to replace manual assembly.

[0043] For details, see Figure 1 The assembly and sorting system includes: a central processing system, and a feeding system, an assembly system, a sorting system and a classification and discharging system connected to the central processing system. The feeding system transports the PCB board, the sensor upper shell 1 and the sensor lower shell 2. The assembly system breaks the PCB board into PCB small boards 3 accordingly. The assembly system identifies and sequentially selects the sensor upper shell 1, the PCB small board 3 and the sensor lower shell 2 for assembly and pressing. The sorting system captures the finished video signal of the temperature and humidity sensor and compares the image with the central processing system, sorts out qualified products and unqualified products and transmits them to the classification and discharging system for corresponding classification.

[0044] Detailed, such as Figure 5 The feeding system is an automatic feeding device 4, which has a connected vacuum suction component 41 and a conveyor belt 42. The vacuum suction component 41 sucks the PCB board, the sensor upper shell 1 and the sensor lower shell 2 and sends them to the conveyor belt 42, and then sends them to the assembly system.

[0045] Need explanation, please refer to Figure 6-12 The assembly system includes a first conveying device 5, a folding device 6, a second conveying device 7, a first mechanical gripper 8, a work station turntable 9, a second mechanical gripper 10, a tooling fixture 11 and an assembly robot 12. The first conveying device 5, the second conveying device 7, the folding device 6, the first mechanical gripper 8, the second mechanical gripper 10, the tooling fixture 11 and the assembly robot 12 are all provided with an object sensing sensor 13, the folding device 6 and the work station turntable 9 are provided with a contact sensor 14, the work station turntable 9 and the tooling fixture 11 are also provided with a position switch 15, the folding device 6 is provided with a folding blade 16 below the object sensing sensor 13 and the contact sensor 14, and the platform below the folding blade 16 is provided with a proximity switch 17.

[0046] like Figure 8 The first mechanical gripper 8 and the second mechanical gripper 10 are the same, both of which include a base 18 and a slide rail 19 that can slide vertically or horizontally along the base 18. A grabbing claw 20 is provided at the end of the slide rail 19. An object sensing sensor 13 and a pulse sensor 21 are provided on the same side of the grabbing claw 20, and a camera 22 is provided on the other side.

[0047] Secondly, if Fig.11The assembly robot 12 includes a base 18 and a slide rail 19 that can slide vertically or horizontally along the base 18. An assembly head 23 is provided at the end of the slide rail 19. The bottom of the assembly head 23 is a pin. An object sensing sensor 13 and a pulse sensor 21 are provided on the same side of the assembly head 23, and a camera 22 is provided on the other side. The first mechanical gripper 8, the second mechanical gripper 10 and the camera 22 on the assembly robot 12 can all send signals to the central processing system for receiving and processing to perform data transmission.

[0048] In addition, if Fig.12 The sorting system includes a sorting device 24, which includes an infrared receiver 25, a sorting gripper 26, an image signal processor 27, a camera 22 and an infrared transmitter 28. The image signal processor 27 is connected to the camera 22, the infrared receiver 25 is signal-connected to the infrared transmitter 28, and an object sensing sensor 13 and a contact sensor 14 are provided on the same side of the sorting gripper 26, and a camera 22 is provided on the other side.

[0049] Finally, if Fig.13 The classification and discharging system includes a discharging device 29, which has an object sensing sensor 13.

[0050] In view of the above-mentioned fully automatic temperature and humidity sensor assembly and sorting system, a fully automatic temperature and humidity sensor assembly and sorting method is designed, which includes the following steps:

[0051] S1: The automatic loading device 4 absorbs the PCB board, the sensor upper shell 1 and the sensor lower shell 2 through the vacuum suction component 41, and transports them to the first conveying device 5 through the conveyor belt 42. When the object sensing sensor 13 on the first conveying device 5 senses the sensor upper shell 1 and the sensor lower shell 2, it triggers the conveyor belt 42 to stop feeding. When the proximity switch 17 on the folding device 6 contacts the PCB board, the folding blade 16 breaks the PCB board into small PCB boards 3, and then conveys them to the second conveying device 7. When the object sensing sensor 13 of the second conveying device 7 senses the small PCB board 3, feeding is stopped.

[0052] S2: After the object sensing sensor 13 on the first mechanical gripper 8 senses the PCB board 3, the sensor upper shell 1 or the sensor lower shell 2, the pulse sensor 21 sends a pulse signal to the camera 22, and the camera 22 receives and captures the signal to form a video signal. After the video signal is transmitted to the central processing system for image comparison, the first mechanical gripper 8 is driven to grab the PCB board 3, the sensor upper shell 1 and the sensor lower shell 2 to the corresponding workstation turntable 9.

[0053] S3: The workstation turntable 9 rotates once, and the contact sensor 14 generates a pulse signal to be received by the object sensing sensor 13 on the second mechanical gripper 10. The pulse sensor 21 triggers the camera 22 to capture the sensor lower shell 2, and transmits the captured video signal to the central processing system for image comparison, and drives the second mechanical gripper 10 to grab the sensor lower shell 2 and fix it in the tooling fixture 11.

[0054] S4: When the contact sensor 14 on the fixture 11 senses the sensor lower shell 2, the sensor lower shell 2 is fixed, and the second mechanical gripper 10 repeats step S3 to grab the PCB small board 3 onto the sensor lower shell 2 corresponding to the fixture 11.

[0055] S5: When the object sensing sensor 13 of the assembly robot 12 senses that there is a PCB board 3 on the fixture 11, a pulse signal is sent to the camera 22 to capture and shoot the PCB board 3. After the video signal is sent to the central processing system for image comparison, the assembly robot 12 drives the ejector pin to press the PCB board 3 into the sensor lower shell 2.

[0056] S6: Repeat step S3 to grab the sensor upper shell 1 and place it on the PCB small board 3 accordingly, and then complete the assembly of the sensor upper shell 1 in step S5.

[0057] S7: The camera 22 on the sorting device 24 takes a picture of the assembled temperature and humidity sensor product, and compares the video signal in the central processing system. After the comparison is successful, an infrared signal is sent. After receiving the infrared signal, the infrared receiver 25 starts the sorting claw 26 to sort out qualified products and unqualified products. The discharging device 29 transports the finished products, and the qualified products are packaged. The unqualified products need to be manually disassembled and returned to the automatic feeding device 4 for reassembly.

[0058] In summary, it can be seen that automated assembly operations are highly efficient and suitable for large-scale operations. Moreover, the assembly is consistent and has high precision, which reduces the number of defective products, reduces material waste, and saves manufacturing and labor costs.

[0059] After the finished products are assembled, qualified and unqualified products are automatically sorted out. Finally, the qualified products are packaged and the unqualified products are picked out, disassembled and returned to the assembly line. This avoids the mixing of unqualified products with qualified products and improves the overall quality of the batch products.

[0060] The advantages of the present invention are:

[0061] This assembly and sorting system is fully automated, replacing traditional manual operations and effectively improving work efficiency and production capacity.

[0062] The PCB board, sensor upper shell and sensor lower shell are automatically loaded and fed to the workstation turntable for standby use. The folding device automatically disassembles the PCB board into small PCB boards. The assembly robot obtains the video signal and performs image comparison in the central processing system before quickly assembling the finished product. The highest assembly accuracy is obtained through image comparison, the error rate is reduced, and the qualified rate of the product is strictly controlled. The sorting device screens the finished products into qualified and unqualified products. Finally, the qualified products are packaged and the unqualified products are picked out, disassembled and returned to the assembly production line, so as to avoid the unqualified products being mixed with the qualified products and greatly reduce material loss and manufacturing costs.

[0063] It is known from common technical knowledge that the present invention can be implemented by other embodiments that do not deviate from its spirit and essential features. Therefore, the above disclosed embodiments are only illustrative in all respects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

Claims

1. Fully automatic temperature and humidity sensor assembly and sorting system, used to assemble and sort temperature and humidity sensors. The temperature and humidity sensors are assembled from PCB boards, sensor upper shells and sensor lower shells, and are characterized in that: The fully automatic temperature and humidity sensor assembly and sorting system includes: a central processing system, and a feeding system, an assembly system, a sorting system and a classified discharging system connected to the central processing system. The feeding system transports PCB boards, sensor upper shells and sensors. The assembly system breaks the PCB boards into PCB small boards. The assembly system identifies and sequentially selects the sensor lower shell, PCB small board and sensor lower shell for assembly and compaction. The sorting system captures the finished video signal of the temperature and humidity sensor and compares the image with the central processing system, sorts out qualified products, and transmits unqualified products to the classified discharging system for corresponding classification. The assembly system comprises a first conveying device, a folding plate device, a second conveying device, a first mechanical gripper, a workstation turntable, a second mechanical gripper, a fixture and an assembly robot, wherein the first conveying device, the second conveying device, the folding plate device, the first mechanical gripper, the second mechanical gripper, the fixture and the assembly robot are all provided with object sensing sensors, the folding plate device and the workstation turntable are provided with contact sensors, the workstation turntable and the fixture are also provided with position switches, the folding plate device is provided with a folding plate blade below the object sensing sensor and the contact sensor, and a proximity switch is provided on the platform below the folding plate blade; The sorting system includes a sorting device, which includes an infrared receiver, a sorting gripper, an image signal processor, a camera and an infrared transmitter. The image signal processor is connected to the camera, the infrared receiver is connected to the infrared transmitter signal, and an object sensing sensor and a contact sensor are provided on the same side of the sorting gripper, and a camera is provided on the other side; The first mechanical gripper and the second mechanical gripper are the same, both comprising a base and a slide rail that can slide vertically or horizontally along the base, a grabbing claw is provided at the end of the slide rail, an object sensing sensor and a pulse sensor are provided on the same side as the grabbing claw, and a camera is provided on the other side; The assembly robot comprises a base and a slide rail which can slide vertically or horizontally along the base. An assembly head is arranged at the end of the slide rail. The bottom of the assembly head is a pin. An object sensing sensor and a pulse sensor are arranged on the same side of the assembly head, and a camera is arranged on the other side.

2. The fully automatic temperature and humidity sensor assembly and sorting system according to claim 1, characterized in that: The feeding system is an automatic feeding device, which has a connected vacuum suction component and a transmission belt. The vacuum suction component sucks the PCB board, the sensor upper shell and the sensor lower shell and sends them to the conveyor belt for feeding.

3. The fully automatic temperature and humidity sensor assembly and sorting system according to claim 1, characterized in that: The classification discharging system comprises a discharging device which has an object sensing sensor.

4. A method for assembling and sorting a fully automatic temperature and humidity sensor, comprising the fully automatic temperature and humidity sensor assembly and sorting system according to claim 2 or 3, characterized in that: The assembly and sorting method comprises: S1: The automatic feeding device sucks the PCB board, the sensor upper shell and the sensor lower shell through the vacuum suction component, and transports them to the first conveying device through the conveyor belt. When the object sensing sensor on the first conveying device senses the sensor upper shell and the sensor lower shell, it triggers the conveyor belt to stop feeding. When the proximity switch on the folding device touches the PCB board, the folding blade breaks the PCB board into small PCB boards, and then conveys them to the second conveying device. When the object sensing sensor of the second conveying device senses the small PCB board, the feeding is stopped; S2: After the object sensing sensor on the first mechanical gripper senses the PCB board, the sensor upper shell or the sensor lower shell, the pulse sensor sends a pulse signal to the camera, which receives and captures the signal to form a video signal. After the video signal is transmitted to the central processing system for image comparison, the first mechanical gripper is driven to grab the PCB board, the sensor upper shell and the sensor lower shell onto the corresponding station turntable; S3: The workstation turntable rotates once, and the contact sensor generates a pulse signal to be received by the object sensing sensor on the second mechanical gripper. The pulse sensor triggers the camera to capture the lower shell of the sensor, transmits the captured video signal to the central processing system for image comparison, and drives the second mechanical gripper to grab the lower shell of the sensor and fix it in the fixture; S4: When the contact sensor on the fixture senses the sensor lower shell, the sensor lower shell is fixed, and the second mechanical gripper repeats step S3 to grab the PCB small board to the sensor lower shell corresponding to the fixture; S5: When the object sensing sensor of the assembly robot senses that there is a PCB on the fixture, it sends a pulse signal to the camera to capture and shoot the PCB. After sending the video signal to the central processing system for image comparison, the assembly robot drives the ejector to press the PCB into the lower shell of the sensor. S6: Repeat step S3 to grab the upper shell of the sensor and place it on the PCB board accordingly, and then complete the assembly of the upper shell of the sensor in step S5; S7: The camera on the sorting device takes pictures of the assembled temperature and humidity sensor products, and compares the video signal in the central processing system. After the comparison is successful, an infrared signal is sent. After the infrared receiver receives the infrared signal, the sorting claw is activated to sort out qualified products and unqualified products. The discharging device transports the finished products, qualified products are packaged, and unqualified products need to be manually disassembled and returned to the automatic loading device for reassembly.

Images