Rectangular connector defect detection system

Abstract

The utility model discloses a rectangular connector defect detection system, which relates to the technical field of defect detection and comprises a conveyor belt mechanism, an image acquisition module, a display control module and an alarm device, the image acquisition module is fixedly arranged at a detection area above the conveying belt mechanism through the detection mechanism, and the image acquisition module is used for acquiring rectangular connector image information of the detection area; the display control module is in communication connection with the image acquisition module, and the display control module is arranged on one side of the detection table, can control the operation of the image acquisition module through a relay, and can automatically adjust the height of the module and display an identification result; the alarm device is in communication connection with the display control module, the alarm device is used for giving an alarm for reminding an abnormal detected state, the image acquisition precision is high, the height of the display module can be adjusted according to the height of an operator, the abnormal detected state can be alarmed, and the use is more intelligent and convenient.

Description

Technical Field

[0001] The present application relates to the technical field of defect detection, and in particular to a rectangular connector defect detection system. Background Art

[0002] A rectangular connector is an electrical connector used to connect cables, circuits, devices, and boards. Its mating surface is rectangular. Rectangular connectors are widely used in consumer electronics, industrial automation, medical devices, and the automotive industry. Currently, there are three methods for detecting defects in rectangular connectors: the first is traditional manual inspection, which relies primarily on visual inspection and manual sorting. This method is not reliable, has low detection efficiency, is labor-intensive, and often misses defects, making it unsuitable for mass production. The second is inspection methods based on laser measurement technology. This method has high hardware requirements and correspondingly high costs, a high equipment failure rate, and difficult maintenance. The third is inspection methods based on machine vision, which are easy to integrate, implement, and maintain. However, they still have many problems, mainly manifested in poor accuracy and slow speed due to changes in the light source or the quality of the environment being inspected. This makes it difficult to apply to large-scale production. Furthermore, it cannot adjust the height of the display module according to the operator's height and cannot provide alarms for abnormal inspection status. Utility Model Content

[0003] In view of this, the present application provides a rectangular connector defect detection system to solve the technical problems of the existing rectangular connector defect detection system, such as poor image acquisition accuracy and slow speed due to changes in the acquisition light or changes in the quality of the inspected environment, and inability to be applied to actual production on a large scale, and inability to adjust the height of the display module according to the height of the operator and to alarm for abnormal inspection status.

[0004] To achieve the above-mentioned object, the present utility model provides the following technical solutions: a rectangular connector defect detection system, comprising: a conveyor belt mechanism, an image acquisition module, a display control module and an alarm device;

[0005] The image acquisition module is fixedly arranged at the detection area above the conveyor belt mechanism through the detection mechanism, and the image acquisition module is used to collect image information of the rectangular connector in the detection area;

[0006] The display control module is in communication with the image acquisition module. The display control module is set on one side of the detection platform and can control the operation of the image acquisition module through a relay, as well as automatically adjust the module height and display the recognition results;

[0007] The alarm device is connected to the display control module for communication, and is used to give an alarm reminder for abnormal inspection status.

[0008] Furthermore, the conveyor belt mechanism includes a conveyor chain and a drive device, the drive device includes a motor and a motor driver, the motor shaft of the motor is connected to the roller shaft through a coupling, the roller shaft is connected to the conveyor chain, the motor is electrically connected to the motor driver, and the motor driver is electrically connected to the microprocessor.

[0009] Furthermore, the image acquisition module includes a CCD image sensor, a ring LED light group, a microprocessor module and a Bluetooth module;

[0010] The CCD image sensor and the annular LED light group are both electrically connected to the microprocessor module, and the Bluetooth module is electrically connected to the microprocessor module.

[0011] Furthermore, the image acquisition module also includes an automatic dimming circuit, a heat sink arranged around the annular LED light group, and a diffusion plate arranged on the LED light. The automatic dimming circuit includes a first light sensor, an LED driver chip, a resistor R1, a resistor R2, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, and a capacitor C5. The first light sensor is electrically connected to the signal input end of the microprocessor module, the Isetx pin of the LED driver chip is connected in parallel with one end of the resistor R2 and one end of the capacitor C1 through the resistor R1, the other end of the resistor R2 is electrically connected to the PWM output end of the microprocessor module, the other end of the capacitor C1 is grounded, the capacitors C2 and C3 are both connected in parallel between the power supply and the ground, the capacitor C4 is connected in parallel between the Vc pin of the LED driver chip and the ground, the capacitor C5 is connected in parallel between the Vout pin of the LED driver chip and the ground, the positive pole of the annular LED light group is connected in parallel with the Vout pin of the LED driver chip, and the negative pole of the annular LED light group is connected to the LED pin of the LED driver chip.

[0012] Furthermore, the display control module includes a server, a display and an intelligent printer, and the display and the intelligent printer are both electrically connected to the server via a connecting line.

[0013] Furthermore, the detection mechanism includes a detection arm and a support column, the image acquisition module is fixed to the end of the detection arm, and the front end of the detection arm is fixedly installed on the top of the support column.

[0014] Furthermore, the display control module also includes an electric lifting rod, a control button, a single-chip microcomputer and a relay module. The electric lifting rod is arranged on one side of the support column. The control button receives the lifting control signal and transmits it to the single-chip microcomputer. The single-chip microcomputer is electrically connected to the relay module. The single-chip microcomputer drives the relay module. One end of the relay module is electrically connected to the switch control end of the electric lifting rod. The display control module is arranged on one side of the support column.

[0015] Furthermore, the alarm device includes a photoelectric encoder, a second light sensor, and a music chip. The photoelectric encoder and the second light sensor are electrically connected to the single-chip microcomputer, and the music chip is electrically connected to the single-chip microcomputer through a driving circuit.

[0016] It can be seen from the above technical solution that the advantages of the utility model are:

[0017] This application uses an automatic dimming circuit to stabilize the light during the image acquisition process, greatly improving the image acquisition quality, and timely detecting and alarming the inspected status, reducing recognition errors, improving image recognition accuracy, and the height of the display module can be adjusted by an electric lifting rod according to the height of the operator, making the user experience better, more intelligent and convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings that constitute a part of this application are used to provide further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute improper limitations on this application.

[0019] Figure 1 It is a schematic diagram of the composition structure of the utility model.

[0020] Figure 2 It is a structural diagram of the present utility model.

[0021] Figure 3 This is a schematic diagram of the circuit structure of the automatic dimming circuit of the present utility model.

[0022] Reference numerals:

[0023] Conveyor belt mechanism-1, image acquisition module-2, display control module-3. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail in conjunction with the embodiments and drawings. Here, the illustrative embodiments of this application and their descriptions are used to explain this application, but are not intended to limit this application.

[0025] refer to Figures 1 to 3 ,like Figure 1As shown, this embodiment provides a rectangular connector defect detection system comprising: a conveyor belt mechanism 1, an image acquisition module 2, a display control module 3, and an alarm device. The image acquisition module 2 is fixedly positioned above the conveyor belt mechanism 1 in the detection area via the detection mechanism. The image acquisition module 2 is used to capture image information of rectangular connectors in the detection area. The display control module 3 is communicatively connected to the image acquisition module 2 and is positioned on one side of the detection platform. The display control module 3 controls the operation of the image acquisition module 2 via relays, automatically adjusts the module height, and displays the recognition results. The alarm device is communicatively connected to the display control module 3 and is used to generate an alarm to indicate abnormal inspection conditions. The display control module 3 controls the power supply of the image acquisition module 3 through the relay, thereby controlling its image acquisition action. The image acquisition module 3 acquires images according to the acquisition frequency, focal length parameters, etc. preset in the memory. The display control module 3 displays the image recognition results and can adjust the height of the display control module 3 according to the height information of the operator, so as to provide a better user experience. The alarm device can detect and alarm abnormal light and abnormal transportation speed of the target component during the inspection process, so as to avoid the problem of low recognition accuracy caused by poor image acquisition quality caused by the corresponding situation during the inspection process.

[0026] like Figure 2 As shown, the conveyor belt mechanism 1 includes a conveyor chain and a drive device, the drive device includes a motor and a motor driver, the motor shaft of the motor is connected to the roller shaft through a coupling, the roller shaft is connected to the conveyor chain, the motor is electrically connected to the motor driver, and the motor driver is electrically connected to the microprocessor.

[0027] Specifically, the image acquisition module 2 includes a CCD image sensor, an annular LED light group, a microprocessor module and a Bluetooth module; the CCD image sensor and the annular LED light group are both electrically connected to the microprocessor module, and the Bluetooth module is electrically connected to the microprocessor module.

[0028] like Figure 3As shown, the image acquisition module 2 also includes an automatic dimming circuit, a heat sink arranged around the annular LED light group, and a diffusion plate arranged on the LED light. The automatic dimming circuit includes a first light sensor, an LED driver chip, a resistor R1, a resistor R2, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, and a capacitor C5. The first light sensor is electrically connected to the signal input end of the microprocessor module, the Isetx pin of the LED driver chip is connected in parallel with one end of the resistor R2 and one end of the capacitor C1 through the resistor R1, the other end of the resistor R2 is electrically connected to the PWM output end of the microprocessor module, the other end of the capacitor C1 is grounded, the capacitors C2 and C3 are both connected in parallel between the power supply and ground, the capacitor C4 is connected in parallel between the Vc pin of the LED driver chip and ground, the capacitor C5 is connected in parallel between the Vout pin of the LED driver chip and ground, the positive electrode of the annular LED light group is connected in parallel with the Vout pin of the LED driver chip, and the negative electrode of the annular LED light group is connected to the LED pin of the LED driver chip.

[0029] In this embodiment, the LED driver chip used is the LTC3454, with the enable terminal Enx connected to a high level. The microprocessor module includes a microprocessor and memory. The microprocessor model is STM32F1. The microprocessor outputs a PWM signal, which is used for dimming. Changing the resistance at the Isetx terminal changes the LED current, thereby adjusting the LED brightness to achieve the purpose of dimming.

[0030] The display control module 3 includes a server, a display, and an intelligent printer. The display and the intelligent printer are electrically connected to the server via a connection line. The microprocessor communicates with the server via a Bluetooth module. The server is used to store the collected images for the next step of image analysis and recognition.

[0031] like Figure 2 As shown, the detection mechanism includes a detection arm and a support column. The image acquisition module 2 is fixed to the end of the detection arm, and the front end of the detection arm is fixedly mounted on the top of the support column. The display control module 3 also includes an electric lift rod, a control button, a single-chip microcomputer, and a relay module. The electric lift rod is located on one side of the support column. The control button receives the lifting control signal and transmits it to the single-chip microcomputer. The single-chip microcomputer is electrically connected to the relay module, which drives the relay module. One end of the relay module is electrically connected to the switch control terminal of the electric lift rod. The display control module 3 is located on the side of the support column.

[0032] The working process of this system is as follows: the target rectangular connector is placed on the conveyor chain. When performing defect recognition, the microcontroller of the image acquisition module sends a control signal to the motor driver of the drive device. The motor driver drives the motor to rotate, thereby driving the conveyor chain connected to the roller shaft to move, and the target rectangular connector is transported to the target detection area. The CCD image sensor performs image acquisition according to the preset acquisition parameters. The microprocessor drives the CCD image sensor through the CCD driver circuit and controls the light of the ring LED light group through the PWM adjustment signal to ensure the optimal image acquisition light. The microprocessor communicates with the server through the Bluetooth module. The server is used to store the collected image for the next step of image analysis and recognition. Image analysis and recognition is an existing technology and will not be described in detail here. The display can display the recognition results to facilitate the operator to monitor defects. The relevant images or data can also be printed through the smart printer as needed. During the defect monitoring process, the operator can also input the lifting control signal through the control button. The microcontroller controls the relay module to conduct according to the lifting control signal, so that the electric lifting rod works and reaches the corresponding adjustment height.

[0033] In this embodiment, the alarm device includes a photoelectric encoder, a second light sensor, and a music chip. The photoelectric encoder and the second light sensor are electrically connected to the single-chip microcomputer. The music chip is electrically connected to the single-chip microcomputer through a driving circuit. The driving circuit is a transistor driving circuit. Among them, the music chip adopts model CK9561, and the single-chip microcomputer adopts a 51 single-chip microcomputer. The 51 single-chip communicates data with the server through Bluetooth communication.

[0034] The second light sensor is arranged in parallel with the first light sensor in the detection arm module to collect information on changes in ambient light. The photoelectric encoder is arranged at the motor of the drive device to collect information on the motor speed. When abnormal light changes and abnormal speed information are detected, the microcontroller controls the music chip to issue a sound reminder, which facilitates the operator to conduct equipment inspection and abnormal processing in a timely manner, thereby ensuring the quality of the collected image.

[0035] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Those skilled in the art will appreciate that various modifications and variations of the present embodiment are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A rectangular connector defect detection system, characterized in that: It comprises: a conveyor belt mechanism (1), an image acquisition module (2), a display control module (3) and an alarm device; The image acquisition module (2) is fixedly arranged at a detection area above the conveyor belt mechanism (1) through a detection mechanism, and the image acquisition module (2) is used to acquire image information of a rectangular connector in the detection area; The display control module (3) is in communication connection with the image acquisition module (2). The display control module (3) is arranged on one side of the detection platform and can control the operation of the image acquisition module (2) through a relay, as well as automatically adjust the module height and display the recognition result. The alarm device is in communication connection with the display control module (3), and is used for issuing an alarm reminder for an abnormal detected state.

2. The rectangular connector defect detection system according to claim 1, wherein: The conveyor belt mechanism (1) comprises a conveyor chain and a drive device, the drive device comprises a motor and a motor driver, the motor shaft of the motor is connected to a roller shaft through a coupling, the roller shaft is connected to the conveyor chain, the motor is electrically connected to the motor driver, and the motor driver is electrically connected to a microprocessor.

3. The rectangular connector defect detection system according to claim 2, wherein: The image acquisition module (2) includes a CCD image sensor, a ring-shaped LED light group, a microprocessor module and a Bluetooth module; The CCD image sensor and the annular LED light group are both electrically connected to the microprocessor module, and the Bluetooth module is electrically connected to the microprocessor module.

4. The rectangular connector defect detection system according to claim 3, wherein: The image acquisition module (2) further comprises an automatic dimming circuit, a heat sink arranged around the annular LED light group, and a diffusion plate arranged on the LED light. The automatic dimming circuit comprises a first light sensor, an LED driver chip, a resistor R1, a resistor R2, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, and a capacitor C5. The first light sensor is electrically connected to the signal input end of the microprocessor module. The Isetx pin of the LED driver chip is connected in parallel with one end of the resistor R2 and one end of the capacitor C1 through the resistor R1. The other end of the resistor R2 is electrically connected to the PWM output end of the microprocessor module. The other end of the capacitor C1 is grounded. The capacitors C2 and C3 are both connected in parallel between the power supply and the ground. The capacitor C4 is connected in parallel between the Vc pin of the LED driver chip and the ground. The capacitor C5 is connected in parallel between the Vout pin of the LED driver chip and the ground. The positive electrode of the annular LED light group is connected in parallel with the Vout pin of the LED driver chip. The negative electrode of the annular LED light group is connected to the LED pin of the LED driver chip.

5. The rectangular connector defect detection system according to claim 4, characterized in that: The display control module (3) comprises a server, a display and an intelligent printer, and the display and the intelligent printer are both electrically connected to the server via a connecting line.

6. The rectangular connector defect detection system according to claim 5, characterized in that: The detection mechanism comprises a detection arm and a support column, the image acquisition module (2) is fixed to the end of the detection arm, and the front end of the detection arm is fixedly mounted on the top end of the support column.

7. The rectangular connector defect detection system according to claim 6, wherein: The display control module (3) further comprises an electric lift rod, a control button, a single chip microcomputer and a relay module. The electric lift rod is arranged on one side of the support column. The control button receives a lifting control signal and transmits it to the single chip microcomputer. The single chip microcomputer is electrically connected to the relay module. The single chip microcomputer drives the relay module. One end of the relay module is electrically connected to the switch control end of the electric lift rod. The display control module (3) is arranged on one side of the support column.

8. The rectangular connector defect detection system according to claim 7, wherein: The alarm device includes a photoelectric encoder, a second light sensor, and a music chip. The photoelectric encoder and the second light sensor are both electrically connected to the single chip microcomputer, and the music chip is electrically connected to the single chip microcomputer through a driving circuit.

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