Automatic detection method for connector

Abstract

The invention relates to the technical field of connector production, in particular to a connector automatic detection method, which comprises a rack, and a turntable mechanism, a feeding mechanism, an electric detection mechanism, a first camera shooting detection mechanism, a second camera shooting detection mechanism and a discharging mechanism which are arranged on the rack, the plurality of detection jigs are annularly and uniformly distributed on the turntable mechanism, and the feeding mechanism is used for grabbing and placing connectors on the detection jigs; and the electrical testing mechanism comprises a first probe detection station, a second probe detection station and a third probe detection station, and is used for conducting a conductive test on the shell and the terminal of the connector. According to the invention, efficient, comprehensive, accurate and automatic detection capabilities are integrated, the efficiency and the quality control level of the final detection link of connector production can be remarkably improved, and the practical value and the market competitiveness are relatively high.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of connector production, in particular to a connector automatic detection method. BACKGROUND

[0002] In the field of connector production and manufacturing, product quality detection is a key link to ensure its electrical performance reliability and appearance integrity. The traditional detection method mainly relies on manual operation, that is, the operator uses simple tools such as multimeter and caliper, and visual inspection to judge the continuity, size and surface defects of the connector one by one. This mode has high labor intensity, low detection efficiency, and is easily affected by personnel experience, fatigue and subjective factors, resulting in inconsistent detection standards and high missed detection rate, which is difficult to meet the production rhythm demand of modern large-scale and high-yield production.

[0003] To improve the detection automation level, some enterprises introduce single-station or linearly arranged special machine equipment, which realizes feeding and positioning through a mechanical hand, and sets independent electrical performance test station and visual detection station. However, such equipment often has single function and can only complete detection task in one direction. If the connector needs to be detected on both sides or in all directions, multiple transfer or turnover stations must be set in the assembly line, resulting in large equipment area, long process flow, complex beat matching between stations, and limited overall detection efficiency. In addition, the separate equipment is easy to introduce error in the repeated positioning of workpieces, affecting the accuracy and consistency of visual detection, and it is difficult to realize efficient and integrated comprehensive inspection of electrical performance and appearance quality. SUMMARY

[0004] To solve the above problems, the present application integrates efficient, comprehensive, accurate and automatic detection capabilities, can significantly improve the efficiency and quality control level of the connector production final inspection link, and has strong practical value and market competitiveness.

[0005] The technical scheme adopted by the present application is: an automatic connector detection method, which is implemented by a connector detection device, the connector detection device comprising a rack, a turntable mechanism, a feeding mechanism, an electrical testing mechanism, a first camera detection mechanism, a second camera detection mechanism, and a discharging mechanism arranged on the rack, a plurality of detection jigs being arranged on the turntable mechanism, the plurality of detection jigs being evenly distributed in a ring shape on the turntable mechanism, the feeding mechanism being used for grabbing and placing a connector on a detection jig; the electrical testing mechanism comprising a first probe detection station, a second probe detection station, and a third probe detection station for conducting a conductive test on the shell and the terminal of the connector; the first camera detection mechanism comprising a first direction detection station and a first overturning station, the first direction detection station being used for detecting the first face of the connector by shooting, and the first overturning station being used for grabbing the connector on the detection jig and placing it back on the detection jig after overturning; the second camera detection mechanism comprising a second direction detection station, a peripheral detection station, and a second overturning station, the second direction detection station being used for detecting the second face of the connector by shooting, the peripheral detection station being used for detecting the periphery of the connector, and the second overturning station being used for grabbing the connector on the detection jig and placing it back on the detection jig after overturning; and the discharging mechanism being used for discharging the connector after detection.

[0006] The detection method comprises the following steps: Step S1: a connector to be detected is grabbed from a tray by the feeding mechanism and accurately placed in a detection jig on the turntable mechanism; Step S2: the turntable mechanism rotates intermittently at a preset rhythm, and the detection jig carrying the connector is sequentially transferred to each detection station; Step S3: when the detection jig rotates to the first probe detection station, the second probe detection station, and the third probe detection station of the electrical testing mechanism, a contact conductive test is respectively performed on the shell and the terminal of the connector to determine whether the electrical continuity and insulation of the connector meet the standard; Step S4: when the detection jig rotates to the first camera detection mechanism and the second camera detection mechanism, the following sub-steps are performed: Step S41: at the first direction detection station, an image of the first face of the connector is collected and compared with a standard image to detect appearance defects of the first face; Step S42: at the first overturning station, the connector is grabbed and overturned by 180 degrees and then placed back on the detection jig, and images before and after overturning are collected to verify the action integrity; Step S43: at the second direction detection station, an image of the second face of the connector exposed after overturning is collected and compared to detect appearance defects of the second face; Step S44, at the four-side detection station, panoramic image acquisition is performed on the four-side surface of the connector by the reflection imaging principle to detect the appearance defects of the side surface; Step S45, at the second overturning station, the connector is grabbed and overturned by 180 degrees again to restore the initial orientation and prepare for the blanking; Step S5: according to the comprehensive results of the electrical performance detection and the appearance image detection, the connector is grabbed from the detection fixture by the blanking mechanism and placed into different blanking trays according to the detection results.

[0007] Further improvement of the above scheme is that the first probe detection station comprises a first probe detection support, a first upper detection module and a first lower detection module, the first upper detection module and the first lower detection module are oppositely arranged, the first upper detection module is provided with a first upper detection probe group, the first lower detection module is provided with a first lower detection probe group, and the first upper detection probe group and the first lower detection probe group are respectively used for contact conduction test on the connector on the detection fixture. Further improvement of the above scheme is that the second probe detection station comprises a second probe detection support, a second upper detection module, a second upper detection probe group and a first probe detection camera, the second probe detection support is arranged on the rack, the second upper detection module is arranged on the second probe detection support, the second upper detection probe group is arranged on the driving end of the second upper detection module, and the second upper detection module is used for driving the second upper detection probe group to move towards the first surface of the connector on the detection fixture for contact conduction test; the detection end of the first probe detection camera faces the second upper detection probe group and is used for detecting the moving position of the probe to judge the height of the measured terminal; the second upper detection probe group is provided with a first probe sliding groove, the first probe sliding groove is slidably provided with a first probe sliding block, the first probe sliding block slides along the first probe sliding groove under the action of the first upper detection probe group, the first probe detection camera is used for detecting the first probe sliding block, and the first probe sliding block is provided with a first measured feature.

[0008] A further improvement of the above scheme is that the third probe detection station comprises a third probe detection support, a second lower detection module, a second lower detection probe group, a test compression module and a second probe detection camera, the third probe detection support is arranged on the rack, the second lower detection module is arranged on the second probe detection support, the second lower detection probe group is arranged on the driving end of the second lower detection module, the second lower detection module is used to drive the second lower detection probe group to move towards the connector second surface of the detection fixture to contact the conductive test; the detection end of the second probe detection camera faces the second lower detection probe group and is used to detect the probe movement position to determine the height of the measured terminal; the second lower detection probe group is provided with a second probe sliding groove, a second probe sliding block is slidably arranged on the second probe sliding groove, the second probe sliding block slides along the second probe sliding groove under the action of the second lower detection probe group, the second probe detection camera is used to detect the second probe sliding block, and the second probe sliding block is provided with a second measured feature; the test compression module is used to compress the connector on the detection fixture during the test.

[0009] A further improvement of the above scheme is that in step S3, the second probe detection station and the third probe detection station further comprise a probe position calibration sub-step: In step S31, in the second probe detection station, during the process that the second upper detection module drives the second upper detection probe group to move downwards to contact the connector terminal, the displacement amount of the first probe sliding block is monitored in real time by the first probe detection camera to indirectly measure and determine whether the height of the measured terminal is within the tolerance range; In step S32, in the third probe detection station, during the process that the second lower detection module drives the second lower detection probe group to move upwards to contact the connector terminal, the displacement amount of the second probe sliding block is monitored in real time by the second probe detection camera to indirectly measure and determine whether the height of the measured terminal is within the tolerance range.

[0010] A further improvement of the above scheme is that the first direction detection station comprises a first direction detection support, a first direction lifting module and a first detection camera, a first detection light supplement lamp is arranged below the first detection camera; the first direction detection support is arranged on the rack, the first direction lifting module is arranged on the first direction detection support, and the first detection camera is arranged on the first direction lifting module; the first direction lifting module is used to drive the first detection camera to move up and down, and the first detection camera is used to perform photographic detection on the connector on the detection fixture. Further improvement of the above scheme is that the first flip station comprises a first flip support, a first flip clamping module and a first flip detection camera, the first flip clamping module comprises a first flip lifting module and a first flip clamping cylinder, the first flip lifting module is arranged on the first flip support, the first flip clamping cylinder is arranged on the first flip lifting cylinder, and is used for clamping and flipping the connector on the detection jig and then placing it back on the detection jig; the first flip detection camera is arranged on the first flip support and is used for detecting the connector before and after flipping.

[0011] Further improvement of the above scheme is that the second direction detection station comprises a second direction detection support, a second direction lifting module and a second detection camera, a second detection light supplementing lamp is arranged below the second detection camera; the second direction detection support is arranged on the rack, the second direction lifting module is arranged on the second direction detection support, the second detection camera is arranged on the second direction lifting module, the second direction lifting module is used for driving the second detection camera to move up and down, and the second detection camera is used for shooting and detecting the connector on the detection jig. Further improvement of the above scheme is that the second flip station comprises a second flip support, a second flip clamping module and a second flip detection camera, the second flip clamping module comprises a second flip lifting module and a second flip clamping cylinder, the second flip lifting module is arranged on the second flip support, the second flip clamping cylinder is arranged on the second flip lifting cylinder, and is used for clamping and flipping the connector on the detection jig and then placing it back on the detection jig; the second flip detection camera is arranged on the second flip support and is used for detecting the connector before and after flipping.

[0012] Further improvement of the above scheme is that in step S4, the first flip station and the second flip station further comprise a flip verification substep. Before and after each flipping action is performed, the first flip detection camera or the second flip detection camera is used for shooting the connector. The images before and after flipping are compared and analyzed to confirm whether the connector is successfully grabbed, whether the flipping angle is accurate, and whether there is a position offset after being placed back on the jig.

[0013] Further improvement of the above scheme is that the four-around detection station comprises a four-around detection support, a four-around detection light cover, a four-around detection reflecting sheet and a four-around detection camera, the four-around detection camera is arranged at the top end of the four-around detection support, the four-around detection light cover is arranged on the four-around detection support and below the four-around detection camera, the four-around detection reflecting sheet is arranged inside the four-around detection light cover and around the connector, and the detection end of the four-around detection camera faces the four-around detection light cover.

[0014] Further improvement of the above scheme is that in step S4, the specific process of the four-side detection station is as follows: The four-side detection camera is above the connector; The light is reflected multiple times by the four-side detection reflector to form uniform illumination around the connector; The four-side detection camera captures panoramic reflection images of all sides of the connector through the opening of the four-side detection light cover; The captured panoramic images are compared with the preset standard images to detect whether there are scratches, stains, deformation or size out-of-tolerance defects.

[0015] The present application has the following advantages: Compared with the existing connector detection, the present application integrates the rotating disc mechanism, the multi-station electrical detection mechanism and the multiple camera detection mechanism to realize the efficiency, comprehensiveness and high precision of connector quality detection. Through the rotating disc mechanism and the ring-shaped uniformly distributed detection fixture, the automatic flow of the connector between the detection stations is realized, and a continuous and automatic detection process is formed. Compared with the traditional single-station or linear detection method, the time for feeding and discharging and station switching is greatly reduced, so that the detection efficiency is multiplied, and the beat requirements of large-scale automatic production line can be met. By setting the electrical detection mechanism including three independent probe detection stations, the key electrical properties of the connector such as conduction, insulation and contact resistance can be fully verified. At the same time, through the first and second camera detection mechanisms and the equipped turnover station, the all-around appearance detection of the top surface, the bottom surface and the four-side surface of the connector is realized, which effectively avoids the missed detection of appearance defects due to detection dead angles and ensures the reliability of the product appearance quality. The whole detection process from feeding, electrical detection, multi-angle visual detection to discharging is automatically completed by the equipment, which maximally reduces the manual intervention, not only reduces the labor intensity and the risk of subjective misjudgment, but also ensures the consistency and stability of the detection results. The design of the turnover station enables the double-sided detection to be completed without manual turnover of the workpiece, which further reflects the intelligent level of the equipment. The rotating disc type layout compactly integrates multiple detection stations with different functions on the rack, optimizes the equipment area, makes the equipment structure more compact, and is convenient for layout and integration in the production workshop, which is suitable for modern production lines with limited space. The detection stations work in sequence under the precise indexing of the rotating disc, ensuring that each connector is subjected to standard detection of the same process, effectively avoiding the quality fluctuations caused by manual operation, and ensuring the high consistency of product quality under batch production conditions. The present application integrates efficient, comprehensive, precise and automatic detection capabilities, which can significantly improve the efficiency and quality control level of the connector production final inspection link, has strong practical value and market competitiveness.

[0016] Methods complete hexahedral detection closed loop is constructed. Through the combination of the first direction detection station and the second direction detection station, combined with the precise attitude control of the first turnover station and the second turnover station, the connector top surface and bottom surface are detected without omission. Especially, the four around detection stations innovatively adopt reflection imaging technology, which can capture all side surface images at one time, and completely eliminates the visual blind area. The multi-angle visual detection system can accurately identify various appearance defects including terminal deformation, plastic shell flash, scratches, unclear marks, etc. The electrical measurement mechanism passes through three independent probe detection stations to detect different parts of the connector, comprehensively evaluates its conduction performance, insulation resistance and contact reliability, and ensures that the electrical performance indicators fully meet the design standards. The cooperation of the rotating disc mechanism and the ring-distributed detection jig forms an efficient assembly line detection mode. The detection stations can operate in parallel to realize the continuous circulation and synchronous detection of the connector, compared with the traditional single station or linear detection mode. The intermittent rotation and accurate indexing ensure the orderly connection of the detection actions of each station, eliminating the waiting time between processes. Compared with manual operation or semi-automatic detection, the complete detection cycle of a single connector is controlled within a few seconds, which is especially suitable for high-tact requirements of large-scale automated production lines. From feeding, electrical measurement, multi-angle visual detection to discharging, the whole process realizes unmanned automatic operation. The setting of the turnover station enables double-sided detection to be completed without manual intervention, not only reducing the labor intensity, but also completely eliminating the risk of subjective misjudgment by humans, ensuring the objectivity and consistency of the detection results. The comprehensive judgment system based on image recognition and electrical signal analysis can automatically complete product grading and sorting, providing real-time data support for quality management and production decision-making. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 Fig. 1 is a perspective view of a connector detection device according to the present application; Figure 2 Fig. 2 is another perspective view of the connector detection device according to the present application; Figure 1 Fig. 3 is a front view of the connector detection device according to the present application; Figure 3 Figure 1 Fig. 4 is a perspective view of a rotating disc mechanism of the connector detection device according to the present application; Figure 4 Fig. 5 is a perspective view of a feeding mechanism of the connector detection device according to the present application; Figure 1 Fig. 6 is a perspective view of a discharging mechanism of the connector detection device according to the present application; Figure 5 Figure 1 Figure 6 Figure 1 Figure 7 Figure 1 ​​​​​​A perspective view of the electrical measurement mechanism of the connector detection device; Figure 8 For Figure 1 A perspective view of the first camera detection mechanism of the connector detection device; Figure 9 For Figure 1 A perspective view of the second camera detection mechanism of the connector detection device; Figure 10 A flowchart of the connector automatic detection method.

[0018] Explanation of reference numerals: rack 1, turntable mechanism 2, rotating divider 21, turntable drive module 22, rotating disc 23, disc support frame 24, support roller 241; Feeding mechanism 3, feeding support frame 31, feeding disc placement assembly 32, feeding placement frame 321, feeding placement bracket 322, feeding tray cylinder 323, feeding support plate 324, feeding transmission assembly 33, feeding linear module 331, feeding linear track 332, feeding disc recycling assembly 34, feeding recycling frame 341, feeding recycling bracket 342, feeding recycling block 343, feeding manipulator 35, feeding disc fixing assembly 36, feeding lifting cylinder 361, feeding disc fixing base plate 362, feeding disc clamping cylinder 363; Electrical measurement mechanism 4, first probe detection station 41, first probe detection support 411, first upper measurement module 412, first lower measurement module 413, first upper measurement probe set 414, first lower measurement probe set 415, second probe detection station 42, second probe detection support 421, second upper measurement module 422, second upper measurement probe set 423, first probe detection camera 424, first probe sliding groove 4231, first probe sliding block 4232, third probe detection station 43, third probe detection support 431, second lower measurement module 432, second lower measurement probe set 433, second probe sliding groove 4331, second probe sliding block 4332, test compression module 434, second probe detection camera 435; First camera detection mechanism 5, first direction detection station 51, first direction detection support 511, first direction lifting module 512, first detection camera 513, first detection fill light 514, first flip station 52, first flip support 521, first flip clamping module 522, first flip lifting module 5221, first flip clamping cylinder 5222, first flip detection camera 523; Second camera detection mechanism 6, second direction detection station 61, second direction detection support 611, second direction lifting module 612, second detection camera 613, second detection light 614, four around detection station 62, four around detection support 621, four around detection light cover 622, four around detection reflector 623, four around detection camera 624, second turnover station 63, second turnover support 631, second turnover clamping module 632, second turnover lifting module 6321, second turnover clamping cylinder 6322, second turnover detection camera 633; Blanking mechanism 7, blanking support frame 71, blanking disc placing assembly 72, blanking placing frame 721, blanking placing bracket 722, blanking tray cylinder 723, blanking tray plate 724, blanking transmission assembly 73, blanking linear module 731, blanking linear rail 732, blanking disc recycling assembly 74, blanking recycling frame 741, blanking recycling bracket 742, blanking recycling block 743, blanking manipulator 75, blanking disc fixing assembly 76, blanking lifting cylinder 761, blanking disc fixing base plate 762, blanking disc clamping cylinder 763; Detection jig 8, jig base 81, sub-jig 82, positioning groove 821. DETAILED DESCRIPTION

[0019] In order to facilitate the understanding of the present application, a more comprehensive description of the present application will be made below with reference to the relevant drawings. The preferred embodiments of the present application are shown in the drawings. However, the present application can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0020] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intervening element.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this description and the appended claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Figures 1-9As shown, in an embodiment of the present application, a connector automatic detection method is involved, comprising a rack 1, and a rotating disc mechanism 2, a feeding mechanism 3, an electrical testing mechanism 4, a first camera detection mechanism 5, a second camera detection mechanism 6 and a discharging mechanism 7 arranged on the rack 1, wherein a plurality of detection jigs 8 are arranged on the rotating disc mechanism 2, the plurality of detection jigs 8 are evenly distributed in a ring direction on the rotating disc mechanism 2, the feeding mechanism 3 is used for grabbing and placing the connector on the detection jig 8; the electrical testing mechanism 4 comprises a first probe detection station 41, a second probe detection station 42 and a third probe detection station 43, which are used for conducting electrical testing on the shell and the terminal of the connector; the first camera detection mechanism 5 comprises a first direction detection station 51 and a first overturning station 52, the first direction detection station 51 is used for shooting and detecting the first surface of the connector, and the first overturning station 52 is used for grabbing the connector on the detection jig 8 and placing it back on the detection jig 8 after overturning; the second camera detection mechanism 6 comprises a second direction detection station 61, a peripheral detection station 62 and a second overturning station 63, the second direction detection station 61 is used for shooting and detecting the second surface of the connector, the peripheral detection station 62 is used for detecting the periphery of the connector, and the second overturning station 63 is used for grabbing the connector on the detection jig 8 and placing it back on the detection jig 8 after overturning; the discharging mechanism 7 is used for grabbing and discharging the connector after detection. In this embodiment, the rotating disc mechanism 2, the multi-station electrical testing mechanism 4 and the multiple camera detection mechanisms are integrated, realizing the efficiency, comprehensiveness and high precision of connector quality detection. Through the rotating disc mechanism 2 and the ring-directionally distributed detection jigs 8, the automatic flow of the connector between the detection stations is realized, forming a continuous and automatic detection process. Compared with the traditional single-station or linear detection method, the time for feeding and discharging and station switching is greatly reduced, the detection efficiency is doubled, and the beat requirements of large-scale automatic production lines can be met. By arranging the electrical testing mechanism 4 comprising three independent probe detection stations, the electrical conductivity, insulation, contact resistance and other key electrical properties of the connector can be fully verified. At the same time, through the first and second camera detection mechanisms 6 and the overturning stations equipped therein, the connector top surface, bottom surface and peripheral side surface are detected in all directions, effectively avoiding the missed detection of appearance defects due to detection dead angles, and ensuring the reliability of product appearance quality. The entire detection process, from feeding, electrical testing, multi-angle visual detection to discharging, is automatically completed by the equipment, minimizing manual intervention, reducing labor intensity and human subjective misjudgment risk, and ensuring the consistency and stability of the detection results. The design of the overturning station enables double-sided detection without manual overturning of the workpiece, further reflecting the intelligence level of the equipment. The rotating disc layout is adopted, and multiple detection stations with different functions are compactly integrated on the rack 1, optimizing the equipment footprint and making the equipment structure more compact, facilitating layout and integration in the production workshop, and being suitable for modern production lines with limited space.Each detection station works in sequence under the accurate indexing of the turntable, ensuring that each connector undergoes standard detection of the same process, effectively avoiding quality fluctuations that may be caused by manual operation, and guaranteeing the high consistency of product quality under batch production conditions. This embodiment integrates efficient, comprehensive, accurate, and automated detection capabilities, significantly improving the efficiency and quality control level of the connector production final inspection link, and has strong practical value and market competitiveness.

[0022] The detection method comprises the following steps: Step S1: The connector to be detected is grabbed from the tray by the feeding mechanism 3 and accurately placed into a detection jig 8 on the turntable mechanism 2; Step S2: The turntable mechanism 2 rotates intermittently at a preset pace, sequentially transferring the detection jig 8 carrying the connector to each detection station; Step S3: When the detection jig 8 rotates to the first probe detection station 41, the second probe detection station 42, and the third probe detection station 43 of the electrical measurement mechanism 4, contact conductivity tests are respectively performed on the connector's shell and terminals to determine whether their electrical continuity and insulation meet the standards; Step S4: When the detection jig 8 rotates to the first camera detection mechanism 5 and the second camera detection mechanism 6, the following sub-steps are performed: Step S41: At the first direction detection station 51, image collection is performed on the first face of the connector and compared with the standard image to detect defects on the first face; Step S42: At the first flipping station 52, the connector is grabbed and flipped 180 degrees before being placed back into the detection jig 8, and images before and after flipping are collected to verify the action integrity; Step S43: At the second direction detection station 61, image collection and comparison are performed on the second face of the connector exposed after flipping to detect defects on the second face; Step S44: At the perimeter detection station 62, panoramic image collection is performed on the perimeter of the connector through the reflection imaging principle to detect defects on the perimeter; Step S45: At the second flipping station 63, the connector is again grabbed and flipped 180 degrees to restore it to the initial orientation, preparing for unloading; Step S5: According to the comprehensive results of electrical performance detection and appearance image detection, the connector is grabbed from the detection jig 8 by the unloading mechanism 7 and placed into different unloading trays according to its detection results.

[0023] In this embodiment, the method constructs a complete hexahedral detection closed loop. Through the combination of the first direction detection station 51 and the second direction detection station 61, combined with the precise posture control of the first turnover station 52 and the second turnover station 63, the connector top surface and bottom surface are detected without omission. Especially, the four around detection stations 62 innovatively use the reflection imaging technology, which can capture all side images in one time, and completely eliminate the visual blind area. The multi-angle visual detection system can accurately identify various appearance defects including terminal deformation, plastic shell flash, scratches, unclear marks, etc. The electrical measurement mechanism 4 detects different parts of the connector through three independent probe detection stations, respectively, to comprehensively evaluate its conduction performance, insulation resistance and contact reliability, and to ensure that the electrical performance indicators fully meet the design standards. The cooperation of the rotating disc mechanism 2 and the ring-distributed detection jig 8 forms an efficient assembly line detection mode. Each detection station can operate in parallel to realize the continuous circulation and synchronous detection of the connector, compared with the traditional single station or linear detection mode. The intermittent rotation and accurate indexing ensure the orderly connection of the detection actions of each station, eliminating the waiting time between processes. Compared with manual operation or semi-automatic detection, the complete detection cycle of a single connector is controlled within a few seconds, which is especially suitable for the high rhythm requirements of large-scale automated production lines. From feeding, electrical measurement, multi-angle visual detection to discharging, the whole process realizes unmanned automatic operation. The setting of the turnover station makes the double-sided detection complete without manual intervention, not only reducing the labor intensity, but also completely eliminating the risk of subjective misjudgment by humans, ensuring the objectivity and consistency of the detection results. The comprehensive judgment system based on image recognition and electrical signal analysis can automatically complete product grading and sorting, providing real-time data support for quality management and production decision-making.

[0024] Referring to Figure 4As shown, the rotating disc mechanism 2 comprises a rotating divider 21, a rotating disc driving module 22, a rotating disc 23 and disc support frames 24. The rotating divider 21 is arranged on the surface of the rack 1, the rotating disc driving module 22 is arranged in the rack 1 and is drivingly connected with the rotating divider 21, the rotating disc 23 is arranged on the rotating divider 21, and the disc support frames 24 are arranged on the rack 1 and are provided in plurality. The plurality of disc support frames 24 are evenly distributed in a ring shape on the rack 1. The top end of each disc support frame 24 is provided with a supporting roller 241 for abutting against the rotating disc 23 to support the rotating disc 23. Specifically, the detection jig 8 comprises a jig base 81 and a sub-jig 82. The jig base 81 is arranged on the rotating disc 23, and the sub-jig 82 is arranged on the jig base 81. The sub-jig 82 is provided with a positioning groove 821 for connector positioning. The groove bottom surface of the positioning groove 821 is provided with a through hole. One end of the through hole penetrates the jig base 81 and the rotating disc 23 in sequence. In this embodiment, the rotating disc mechanism 2 ensures that the rotating disc 23 can realize accurate intermittent indexing rotation among the plurality of detection stations through the cooperation of the rotating divider 21 and the rotating disc driving module 22. The positioning accuracy can reach ±0.02 millimeters, which provides a reliable basis for the accurate docking and detection of each station. It is particularly important that the disc support frames 24 evenly distributed in a ring shape and the supporting rollers 241 at the top ends of the disc support frames 24 construct a stable auxiliary support system. This design effectively offsets the deflection deformation and radial runout of the rotating disc 23 due to the bearing of the plurality of detection jigs 8 and connectors. Even at high speed, the planeness and stability of the rotating disc 23 can be ensured, thereby greatly improving the stability and long-term precision retention of the equipment operation and reducing the detection errors caused by vibration. Further, the detection jig 8 adopts the split modular design of the jig base 81 and the sub-jig 82. Its advantages are as follows: for different models of connectors, only the specific sub-jig 82 needs to be quickly replaced to realize compatibility, which greatly enhances the flexible production capacity of the equipment, and the changeover time can be shortened to minutes. The positioning groove 821 arranged on the sub-jig 82 ensures that the connector is accurately positioned to prevent deviation during rotation or detection. The through hole arranged on the groove bottom surface is a clever design. On the one hand, it provides an upward channel for the probes of the electrical measurement mechanism 4, so that the probes can directly contact the connector terminals from below for testing, and the wiring is more simple and safe. On the other hand, it also provides an unobstructed view for the bottom shooting of the visual detection mechanism, which is an important structural guarantee for realizing the omnidirectional and dead-angle-free detection of the connector.

[0025] Referring to Figure 5As shown, the feeding mechanism 3 comprises a feeding support frame 31, a feeding tray placing assembly 32, a feeding transmission assembly 33, a feeding tray recycling assembly 34 and a feeding manipulator 35. The feeding support frame 31 is located on one side of the rack 1. The feeding tray placing assembly 32 and the feeding tray recycling assembly 34 are respectively arranged on both sides of the feeding support frame 31. A feeding station is arranged between the feeding tray placing assembly 32 and the feeding tray recycling assembly 34. The feeding transmission assembly 33 is provided with a feeding tray fixing assembly 36 and is used to drive the feeding tray fixing assembly 36 to transmit between the feeding tray placing assembly 32, the feeding station and the feeding tray recycling assembly 34. The feeding tray fixing assembly 36 is used for tray fixing. The feeding manipulator 35 is used to grab the connector on the tray in the feeding station and place it on the detection jig 8. In this embodiment, the functions of tray placing, transmission, positioning, grabbing and empty tray recycling are integrated. The feeding tray placing assembly 32 is used to stack and store the full trays. The feeding transmission assembly 33 automatically transports the trays to the precise feeding station in a step-by-step manner. During this process, the feeding tray fixing assembly 36 ensures the stability of the tray during transmission and stay. The feeding manipulator 35 located above the feeding station can efficiently and accurately transfer the connector from the tray to the detection jig 8 of the rotary table mechanism 2, completing the feeding action. The used empty trays are continuously transported by the transmission assembly to the feeding tray recycling assembly 34 for automatic stacking and recycling. Uninterrupted continuous feeding is realized. Through the coordinated operation of the placing end and the recycling end, the replenishment of full trays and the removal of empty trays can be completed at the same time as the current tray is grabbed by the manipulator, greatly reducing the equipment downtime waiting time caused by tray replacement, and improving the production efficiency of the whole line. Secondly, the feeding positioning accuracy is guaranteed. The fixed feeding station and the precise tray fixing design eliminate the grabbing error caused by the fluctuation of the tray position, combined with the high-precision manipulator, ensuring that each connector can be accurately and losslessly placed in the specified position of the detection jig 8, laying a successful foundation for subsequent electrical measurement and visual inspection. Finally, this design significantly reduces the intensity of manual intervention, realizes the full-process automation from tray feeding to empty tray recycling, and one person can easily manage multiple devices, effectively saving labor costs and reducing quality fluctuations caused by human factors.

[0026] The upper feeding tray placing assembly 32 comprises an upper feeding placing rack 321, an upper feeding placing bracket 322 and an upper feeding tray cylinder 323. The upper feeding placing rack 321 is arranged on the upper feeding support rack 31. The upper feeding placing bracket 322 is located on one side of the upper feeding placing rack 321. The upper feeding tray cylinder 323 is arranged on the upper feeding placing bracket 322. The upper feeding placing rack 321 is provided with a containing groove for accommodating the tray. The driving end of the upper feeding tray cylinder 323 is provided with an upper feeding tray plate 324. The upper feeding tray plate 324 faces the containing groove and is used for supporting the tray. When it is needed to place the tray to the upper feeding tray fixing assembly 36, the upper feeding tray cylinder 323 retracts the upper feeding tray plate 324, so that the lowest tray falls into the upper feeding tray fixing assembly 36. The upper feeding tray recycling assembly 34 comprises an upper feeding recycling rack 341, an upper feeding recycling bracket 342 and an upper feeding recycling block 343. The upper feeding recycling rack 341 is arranged on the upper feeding support rack 31. The upper feeding recycling bracket 342 is located on one side of the upper feeding recycling rack 341. The upper feeding recycling block 343 is arranged on the upper feeding recycling bracket 342 and is used for supporting the tray on the upper feeding recycling rack 341. The upper feeding transmission assembly 33 comprises an upper feeding linear module 331 and an upper feeding linear track 332. The upper feeding linear module 331 is arranged on the rack 1. The upper feeding linear track 332 is arranged between the upper feeding tray placing assembly 32 and the upper feeding tray recycling assembly 34 and is used for guiding the movement of the tray. The upper feeding tray fixing assembly 36 is arranged on the upper feeding linear module 331. The upper feeding tray fixing assembly 36 comprises an upper feeding lifting cylinder 361, an upper feeding tray fixing base plate 362 and an upper feeding tray clamping cylinder 363. The upper feeding lifting cylinder 361 is arranged on the upper feeding linear module 331. The upper feeding tray fixing base plate 362 is arranged at the driving end of the upper feeding lifting cylinder 361. The upper feeding tray clamping cylinder 363 is arranged in two groups. The two groups of upper feeding tray clamping cylinders 363 are respectively arranged at the two ends of the upper feeding tray fixing base plate 362 and are used for clamping and fixing the two ends of the tray. In this embodiment, the upper feeding tray placing assembly 32 drives the upper feeding tray plate 324 to support the whole stack of trays through the upper feeding tray cylinder 323. The tray is released to the lower upper feeding tray fixing assembly 36 through the accurate retraction of the cylinder. The vertical lifting of the tray is realized through the upper feeding lifting cylinder 361, which facilitates the tray taking of the manipulator at different heights. More importantly, the two groups of upper feeding tray clamping cylinders 363 clamp the tray from the two ends of the upper feeding tray fixing base plate 362, effectively eliminating any slight displacement of the tray during the transmission and positioning process, providing an extremely stable and accurate reference position for the grabbing operation of the upper feeding manipulator 35, and fundamentally avoiding the grabbing failure or product damage caused by the tray shaking. The whole material flow is driven by the upper feeding transmission assembly 33 (the upper feeding linear module 331 and the track) to accurately transport the fixed tray from the placing end to the upper feeding station. After all the connectors of the tray are taken, the tray is transported to the upper feeding tray recycling assembly 34.The recycling assembly recycles the empty trays layer by layer through the lifting action of the tray recycling mechanism, keeping the working area clean.

[0027] Referring to Figure 6 As shown, the unloading mechanism 7 includes an unloading support frame 71, an unloading tray placing assembly 72, an unloading transmission assembly 73, an unloading tray recycling assembly 74, and an unloading robot 75. The unloading support frame 71 is located on one side of the rack 1. The unloading tray placing assembly 72 and the unloading tray recycling assembly 74 are respectively arranged on both sides of the unloading support frame 71. An unloading station is arranged between the unloading tray placing assembly 72 and the unloading tray recycling assembly 74. The unloading transmission assembly 73 is provided with an unloading tray fixing assembly 76 and is used to drive the unloading tray fixing assembly 76 to transmit between the unloading tray placing assembly 72, the unloading station, and the unloading tray recycling assembly 74. The unloading tray fixing assembly 76 is used for tray fixing. The unloading robot 75 is used to grab the connectors from the detection jig 8 and place them on the tray in the unloading station. In this embodiment, the empty tray is supplied by the unloading tray placing assembly 72, and the unloading tray fixing assembly 76 is accurately transported to the unloading station and firmly fixed by the unloading transmission assembly 73. At the same time, the connectors that have completed detection are rotated to the unloading station by the rotating disc. The unloading robot 75 then acts to accurately grab the connectors from the detection jig 8 and places them in the empty tray in the unloading station according to the preset program (for example, according to the detection results, the connectors are divided into "qualified products" and "unqualified products"). The full tray of connectors is then transported to the unloading tray recycling assembly 74 by the transmission assembly for automatic stacking and recycling. This realizes high-speed and uninterrupted unloading synchronized with the detection rhythm. Through the assembly line operation of placing, fixing, unloading, and recycling, equipment downtime caused by manual intervention is effectively avoided, ensuring the continuity of the production rhythm and greatly improving the production efficiency of the entire line. The unloading positioning precision is very high. The unloading tray fixing assembly 76 ensures the stability of the tray when receiving the products. Combined with the high-precision unloading robot 75, each connector can be accurately and damage-free placed into the designated position of the tray, avoiding secondary damage or confusion of the products during collection, providing convenience for subsequent packaging or reprocessing. Finally, the mechanism supports flexible quality control management. Through linkage with the upper computer detection system, the unloading robot 75 can execute the classification and placement instructions to realize automatic sorting of qualified products and unqualified products, which not only reduces the cost of subsequent manual sorting, but also realizes real-time tracing and management of product quality data.

[0028] The unloading disc placing assembly 72 comprises an unloading placing rack 721, an unloading placing bracket 722 and an unloading tray cylinder 723. The unloading placing rack 721 is arranged on the unloading support rack 71. The unloading placing bracket 722 is located on one side of the unloading placing rack 721. The unloading tray cylinder 723 is arranged on the unloading placing bracket 722. The unloading placing rack 721 is provided with a containing groove for accommodating the material disc. The driving end of the unloading tray cylinder 723 is provided with an unloading tray plate 724, which faces the containing groove and is used for supporting the material disc. When it is necessary to place the material disc on the unloading disc fixing assembly 76, the unloading tray cylinder 723 retracts the unloading tray plate 724, so that the lowest material disc falls into the unloading disc fixing assembly 76. The unloading disc recycling assembly 74 comprises an unloading recycling rack 741, an unloading recycling bracket 742 and an unloading recycling block 743. The unloading recycling rack 741 is arranged on the unloading support rack 71. The unloading recycling bracket 742 is located on one side of the unloading recycling rack 741. The unloading recycling block 743 is arranged on the unloading recycling bracket 742 and is used for supporting the material disc on the unloading recycling rack 741. The unloading transmission assembly 73 comprises an unloading linear module 731 and an unloading linear rail 732. The unloading linear module 731 is arranged on the rack 1. The unloading linear rail 732 is arranged between the unloading disc placing assembly 72 and the unloading disc recycling assembly 74 and is used for guiding the movement of the material disc. The unloading disc fixing assembly 76 is arranged on the unloading linear module 731. The unloading disc fixing assembly 76 comprises an unloading lifting cylinder 761, an unloading disc fixing base plate 762 and an unloading disc clamping cylinder 763. The unloading lifting cylinder 761 is arranged on the unloading linear module 731. The unloading disc fixing base plate 762 is arranged at the driving end of the unloading lifting cylinder 761. The unloading disc clamping cylinder 763 is arranged in two groups. The two groups of unloading disc clamping cylinders 763 are arranged at the two ends of the unloading disc fixing base plate 762, respectively, so as to clamp and fix the two ends of the material disc. In this embodiment, full-automatic and high-precision flow of the connector carrier after detection is realized. Specifically, the unloading disc placing assembly 72 adopts a stack design. The unloading tray plate 724 is driven by the unloading tray cylinder 723 to support the whole stack of empty material discs. The precise contraction action of the cylinder is used to release only one empty material disc at the bottom to the unloading disc fixing assembly 76 each time. The vertical position of the material disc is adjusted by the unloading lifting cylinder 761. This function is particularly important. It allows the unloading mechanical hand 75 to perform grabbing and placing operations at a fixed height, while the material disc is lowered layer by layer, ensuring that the mechanical hand can place the connector into the hole of the material disc with the optimal trajectory each time, thereby improving the accuracy and efficiency of the placing.Meanwhile, the two sets of blanking disc clamping air cylinders 763 apply centering clamping force from both ends of the disc, effectively eliminating any pose deviation that the disc may generate when transmitting or receiving products, providing an extremely stable and accurate placement reference for the blanking manipulator 75, fundamentally preventing product placement misplacement, dumping or scratching, and ensuring the orderliness of the collection. The fixed empty disc is accurately transported from the placement end to the blanking station, and after the disc is filled with the detected connectors, it is transported to the blanking disc recycling assembly 74. The recycling assembly stably stacks the full load disc layer by layer through the lifting action of the blanking recycling block 743, achieving automatic recycling.

[0029] Referring to Figure 7As shown, the first probe detection station 41 comprises a first probe detection support 411, a first upper measurement module 412, and a first lower measurement module 413. The first upper measurement module 412 is arranged opposite to the first lower measurement module 413. The first upper measurement module 412 is provided with a first upper measurement probe group 414. The first lower measurement module 413 is provided with a first lower measurement probe group 415. The first upper measurement probe group 414 and the first lower measurement probe group 415 are respectively used for contact conduction testing of the connectors on the detection jig 8. Specifically, the second probe detection station 42 comprises a second probe detection support 421, a second upper measurement module 422, a second upper measurement probe group 423, and a first probe detection camera 424. The second probe detection support 421 is arranged on the rack 1. The second upper measurement module 422 is arranged on the second probe detection support 421. The second upper measurement probe group 423 is arranged at the driving end of the second upper measurement module 422. The second upper measurement module 422 is used to drive the second upper measurement probe group 423 to move towards the first surface of the connectors of the detection jig 8 for contact conduction testing. The detection end of the first probe detection camera 424 faces the second upper measurement probe group 423 and is used to detect the movement position of the probe to determine the height of the measured terminal. The second upper measurement probe group 423 is provided with a first probe sliding groove 4231. A first probe sliding block 4232 is slidingly arranged on the first probe sliding groove 4231. The first probe sliding block 4232 slides along the first probe sliding groove 4231 under the action of the first upper measurement probe group 414. The first probe detection camera 424 is used to detect the first probe sliding block 4232. The first probe sliding block 4232 is provided with a first measured feature. In this embodiment, multi-dimensional synchronous or sequential accurate measurement is realized. Specifically, the first probe detection station 41 adopts an upper-lower measurement layout. The first upper measurement probe group 414 and the first lower measurement probe group 415 simultaneously perform contact conduction testing on the contacts on the upper and lower sides of the connectors. The symmetrical design can complete the detection of the basic electrical parameters such as continuity, resistance, and insulation resistance of multiple channels of the connector at one time, has high testing efficiency, and can effectively evaluate the contact consistency of the double-sided contacts of the connector. The function of electrical performance testing and geometric dimension measurement is integrated. This station not only performs specific electrical parameter testing on the first surface of the connector through the second upper measurement probe group 423, but more importantly, it introduces a cooperative measurement mechanism of the first probe detection camera 424 and the first probe sliding block 4232. When the second upper measurement probe group 423 moves downward to contact the measured connector terminal, the probe group will be subjected to a reaction force. This force will push the first probe sliding block 4232 to produce a corresponding sliding displacement in the first probe sliding groove 4231. The first probe detection camera 424 can indirectly and accurately convert the compression amount of the probe or the actual height of the measured terminal by accurately capturing the position change of the first measured feature (such as a specific mark or edge) on the first probe sliding block 4232.This achieves the key dimension data of terminal height while completing the electrical performance test without replacing the sensor or station.

[0030] The third probe detection station 43 comprises a third probe detection support 431, a second lower measurement module 432, a second lower measurement probe group 433, a test compression module 434, and a second probe detection camera 435. The third probe detection support 431 is arranged on the rack 1. The second lower measurement module 432 is arranged on the second probe detection support 421. The second lower measurement probe group 433 is arranged at the driving end of the second lower measurement module 432. The second lower measurement module 432 is used to drive the second lower measurement probe group 433 to move towards the connector second surface of the detection fixture 8 for contact electrical test. The detection end of the second probe detection camera 435 is directed towards the second lower measurement probe group 433 for detecting the movement position of the probe to determine the height of the measured terminal. The second lower measurement probe group 433 is provided with a second probe sliding groove 4331. A second probe sliding block 4332 is slidingly arranged on the second probe sliding groove 4331. The second probe sliding block 4332 slides along the second probe sliding groove 4331 under the action of the second lower measurement probe group 433. The second probe detection camera 435 is used to detect the second probe sliding block 4332. The second probe sliding block 4332 is provided with a second measured feature. The test compression module 434 is used to compress the connector on the detection fixture 8 during the test. In this embodiment, high-precision and high-stability comprehensive detection of the connector second surface (the following surface) is achieved. Specifically, the second lower measurement module 432 drives the second lower measurement probe group 433 to move upward to reliably contact the connector second surface terminal on the detection fixture 8 rotated to this station, thereby completing the electrical performance test (such as conduction, resistance, etc.) of the contact on this side. This design enables the equipment to comprehensively detect the electrical characteristics of the upper and lower surfaces or different sides of the connector in a partitioned and time-sharing manner, ensuring that there is no dead angle in the detection. The test compression module 434 applies a stable downward pressure on the connector during the test to firmly compress it on the detection fixture 8. This eliminates the possible slight displacement or vibration of the connector caused by the probe contact force, ensuring the absolute stability of the contact point between the probe and the terminal, thereby greatly improving the accuracy and repeatability of the electrical signal test and avoiding measurement errors introduced by poor contact. Secondly, the stable compression provides a solid counterforce basis for the probe contact, making subsequent size measurement more accurate. When the second lower measurement probe group 433 contacts the terminal and is pressed, it pushes the second probe sliding block 4332 to slide in the second probe sliding groove 4331. The second probe detection camera 435 indirectly calculates the compression stroke of the probe by capturing the precise displacement of the second measured feature on the second probe sliding block 4332, and then converts the height dimension of the measured terminal. The electrical performance test of the specific surface is completed by the second lower measurement probe group 433, and the key dimension is synchronously acquired by the visual-slider cooperative measurement system.

[0031] In step S3, the second probe detection station 42 and the third probe detection station 43 further include a probe position calibration sub-step: In step S31, during the process that the second upper measurement module 422 drives the second upper measurement probe group 423 to move downward to contact the connector terminal, the first probe detection camera 41 monitors the displacement of the first probe slider 4232 in real time to indirectly measure and determine whether the height of the measured terminal is within the tolerance range. In step S32, during the process that the second lower measurement module 432 drives the second lower measurement probe group 433 to move upward to contact the connector terminal, the second probe detection camera 435 monitors the displacement of the second probe slider in real time to indirectly measure and determine whether the height of the measured terminal is within the tolerance range.

[0032] In this embodiment, while the second probe detection station 42 and the third probe detection station 43 are conducting the conductivity test, the first probe detection camera 41 and the second probe detection camera 435 monitor the displacement of the first probe slider 4232 and the second probe slider, respectively, to accurately determine whether the height of the measured terminal is within the tolerance range in real time. This breaks through the limitation of the traditional electrical test station that can only detect electrical parameters, and eliminates the need for an additional dedicated size measurement station, thereby optimizing the detection process and shortening the overall detection cycle. The indirect measurement of the compression stroke of the probe by the visual system can be accurate to the micron level, effectively avoiding potential quality problems such as poor contact or assembly interference caused by terminal height deviation. Real-time monitoring of probe position changes not only provides terminal height dimensions, but also provides real-time feedback on the contact state of the probe and the terminal, ensuring the stability of the electrical performance test.

[0033] Referring to Figure 8As shown, the first direction detection station 51 includes a first direction detection bracket 511, a first direction lifting module 512, and a first detection camera 513, and a first detection light 514 is arranged below the first detection camera 513; the first direction detection bracket 511 is arranged on the rack 1, the first direction lifting module 512 is arranged on the first direction detection bracket 511, the first detection camera 513 is arranged on the first direction lifting module 512, the first direction lifting module 512 is used to drive the first detection camera 513 to move up and down, and the first detection camera 513 is used to take a photo of the connector on the detection jig 8; Specifically, the first flip station 52 includes a first flip bracket 521, a first flip clamping module 522, and a first flip detection camera 523, the first flip clamping module 522 includes a first flip lifting module 5221 and a first flip clamping cylinder 5222, the first flip lifting module 5221 is arranged on the first flip bracket 521, and the first flip clamping cylinder 5222 is arranged on the first flip lifting cylinder 5223 and is used to clamp and flip the connector on the detection jig 8 and then put it back on the detection jig 8; the first flip detection camera 523 is arranged on the first flip bracket 521 and is used to detect the connector before and after flipping. In this embodiment, the first direction detection station 51 is responsible for high-precision visual detection of the initial posture (usually the top surface or the first surface) of the connector. The technical advantages are as follows: the first direction lifting module 512 can drive the first detection camera 513 to perform accurate vertical focusing to adapt to the height changes of different models of connectors and ensure that the clearest image is always obtained. In combination with the first detection light 514 arranged below the camera, a uniform, stable and shadow-free lighting environment can be provided for the shooting area, effectively highlighting the subtle features of the connector surface, such as scratches, stains, marker clarity, terminal shape abnormalities, etc., providing a high-quality image source for subsequent image processing algorithms, thereby ensuring the accuracy of the top appearance defect detection. After completing the detection in the first direction, the first flip station 52 undertakes the key posture conversion and supplementary detection task. The station automatically grabs the connector through the first flip clamping module 522 (composed of the first flip lifting module 5221 and the first flip clamping cylinder 5222), flips it by 180 degrees, and then puts it back on the jig. This automatic flipping action makes the originally downward-facing connector bottom surface face upward, creating conditions for subsequent stations (such as the second direction detection station 61) to detect this surface, realizing the coverage detection of all external surfaces of the connector. The first flip detection camera 523 is integrated to take photos of the connector before and after flipping.The flip action can be verified to be performed correctly, and whether the connector falls or is damaged during the flipping process; secondly, by comparing the images before and after the flipping, it can assist in judging whether the clamping is stable and in place, thereby increasing the reliability of process control; finally, it can also serve as a visual record of an intermediate state, providing more data support for quality traceability.

[0034] Referring to Figure 9As shown, the second direction detection station 61 comprises a second direction detection bracket 611, a second direction lifting module 612, and a second detection camera 613, and a second detection light supplement lamp 614 is arranged below the second detection camera 613; the second direction detection bracket 611 is arranged on the rack 1, the second direction lifting module 612 is arranged on the second direction detection bracket 611, the second detection camera 613 is arranged on the second direction lifting module 612, the second direction lifting module 612 is used to drive the second detection camera 613 to move up and down, and the second detection camera 613 is used to take a photo of the connector on the detection jig 8; specifically, the second turnover station 63 comprises a second turnover bracket 631, a second turnover clamping module 632, and a second turnover detection camera 633, the second turnover clamping module 632 comprises a second turnover lifting module 6321 and a second turnover clamping cylinder 6322, the second turnover lifting module 6321 is arranged on the second turnover bracket 631, and the second turnover clamping cylinder 6322 is arranged on the second turnover lifting cylinder 6323 and is used to clamp and turn over the connector on the detection jig 8 and then place it back on the detection jig 8; the second turnover detection camera 633 is arranged on the second turnover bracket 631 and is used to detect the connector before and after turning over. In the embodiment, all the outer surfaces of the connector are detected without dead angle and with high precision. Specifically, when the connector is turned over via the first turnover station 52, the originally downward bottom surface (i.e., the second surface) has become upward. At this time, the second direction detection station 61 immediately performs special visual detection on the surface. The technical advantages are similar to those of the first direction detection station 51 but the acting surface is different: the second direction lifting module 612 can accurately adjust the height of the second detection camera 613 to ensure that the best shooting focal length can be obtained for connectors of different specifications. At the same time, the second detection light supplement lamp 614 provides optimized lighting conditions for the detection surface, fully highlights the arrangement of the terminal on the bottom surface, the integrity of the plastic shell, the marking and printing, and whether there is an assembly defect, etc., so as to complete the quality judgment of the second main outer surface of the connector. The second turnover station 63 completes the posture reset of the detection process. The second turnover clamping module 632 (composed of the second turnover lifting module 6321 and the second turnover clamping cylinder 6322) again grabs the connector and turns it over, so that it returns to the initial orientation when entering the detection system. This facilitates the subsequent possible re-inspection, sorting or discharging operation, and ensures the smoothness and standardization of the production process. The configuration of the second turnover detection camera 633 continues the concept of process monitoring and data tracing. It is used to monitor the accuracy and safety of the second turnover action, prevent the connector from being damaged in the final reset process, and provide a complete visual log for the entire detection process by capturing images of the state before and after turning over. These image data can be correlated and analyzed with the detection results of the previous stations to provide a solid data foundation for comprehensive quality evaluation and analysis of the root cause of defective products.

[0035] In step S4, the first and second flipping stations 52 and 63 further include a flipping verification sub-step: Before and after each flipping action, the connector is photographed by the first or second flipping detection camera 523 or 633, respectively; The images before and after flipping are compared and analyzed to confirm whether the connector is successfully grabbed, whether the flipping angle is accurate, and whether there is a position deviation after being placed back in the fixture.

[0036] In this embodiment, through the comparison of images before and after flipping, it can be accurately verified whether the connector is reliably grabbed, whether the flipping angle is accurately 180 degrees, and whether there is a position deviation after resetting. This design can immediately identify abnormal conditions such as flipping failure, product falling or position deviation, and timely trigger an alarm or retry mechanism, effectively avoiding product damage or subsequent detection failure due to flipping failure. The flipping verification establishes a complete visual record for the detection process of each connector, providing a reliable basis for quality traceability and defect analysis. At the same time, through real-time feedback of the flipping state, data support is provided for equipment maintenance and process optimization. By ensuring the accuracy and consistency of each flipping action, a reliable guarantee is provided for accurate detection in subsequent stations, ensuring the accuracy and stability of the detection results.

[0037] The four-side detection station 62 comprises a four-side detection support 621, a four-side detection light cover 622, a four-side detection reflective sheet 623, and a four-side detection camera 624. The four-side detection camera 624 is arranged at the top end of the four-side detection support 621. The four-side detection light cover 622 is arranged on the four-side detection support 621 and below the four-side detection camera 624. The four-side detection reflective sheet 623 is arranged inside the four-side detection light cover 622 and around the connector. The detection end of the four-side detection camera 624 faces the four-side detection light cover 622. In this embodiment, the four-side detection light cover 622 and the four-side detection reflective sheet 623 arranged inside form an optimized imaging environment. The four-side detection reflective sheets 623 are arranged around the connector like a multi-faceted mirror, which can simultaneously and without distortion reflect the images of each side of the connector to the top. The four-side detection camera 624 arranged at the top end of the support can obtain a composite image containing the images of all sides of the connector by one-time shooting. The single-shot and panoramic imaging mode greatly shortens the detection cycle, improves the detection efficiency, and avoids the cumulative error caused by multiple movements and positioning compared with the traditional driving camera or product rotation multiple shooting scheme. It can cover various defects of the side of the connector. For example, it can clearly identify the flash, burr, shrinkage, scratch, and other injection molding defects of the plastic shell, check whether the mark and two-dimensional code on the side wall are clear, complete, and correctly positioned, verify whether the exposure condition of the terminal from the side meets the design requirements, and evaluate whether the assembly gap on the side is uniform. The four-side detection light cover 622 also plays a role in isolating ambient stray light, and cooperates with the internal reflective sheet to provide the camera with high-contrast and uniform lighting imaging conditions, ensuring the consistency of the obtained image quality and laying a reliable foundation for subsequent high-precision image analysis algorithms. It realizes the rapid, panoramic, and non-contact detection of the four sides of the connector.

[0038] In step S4, the specific process of the four-side detection station 62 is as follows: The four-side detection camera shoots from above; The light is reflected multiple times by the four-side detection reflective sheet 623 to form uniform illumination around the connector; The four-side detection camera 624 collects the panoramic reflection image of all sides of the connector through the opening of the four-side detection light cover 622 at one time; The collected panoramic image is compared with the preset standard image in terms of features to detect whether there are scratches, stains, deformation, or size out-of-tolerance defects.

[0039] In the embodiment, the images of all sides of the connector are converged in the same field of view through the principle of multiple reflection of the reflective sheet 623, so that the four surrounding detection cameras above can collect complete four surrounding panoramic images at one time. The time loss and mechanical complexity caused by rotating the product or moving the camera in the traditional way are eliminated, the detection of multiple sides is integrated into a single imaging action, the detection efficiency is significantly improved, and 360-degree visual blind area is ensured. The uniform illumination formed by the reflective sheet effectively avoids local overexposure or shadow, and provides a high-quality imaging basis for image analysis. Through high-precision feature comparison with the preset standard image, the system can sensitively identify micron-level scratches, stains, deformations or size out-of-tolerance defects, and the consistency and reliability of the detection are far superior to manual visual inspection or segmented shooting methods.

[0040] The above embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the patent of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, several modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. An automatic connector testing method, characterized in that: This is implemented using connector testing equipment, which includes a frame and a turntable mechanism, a loading mechanism, an electrical testing mechanism, a first camera testing mechanism, a second camera testing mechanism, and a unloading mechanism mounted on the frame. The turntable mechanism is equipped with multiple testing fixtures, which are evenly distributed circumferentially on the turntable mechanism. The loading mechanism is used to pick up connectors and place them onto the testing fixtures. The electrical testing mechanism includes a first probe testing station, a second probe testing station, and a third probe testing station for conducting conductivity tests on the connector's housing and terminals. The first camera inspection mechanism includes a first-direction inspection station and a first-flipping station. The first-direction inspection station is used to inspect the first side of the connector by taking a picture. The first-flipping station is used to pick up the connector on the inspection fixture, flip it over, and put it back into the inspection fixture. The second camera inspection mechanism includes a second-direction inspection station, a four-sided inspection station, and a second-flipping station. The second-direction inspection station is used to inspect the second side of the connector by taking a picture. The four-sided inspection station is used to inspect the four sides of the connector. The second-flipping station is used to pick up the connector on the inspection fixture, flip it over, and put it back into the inspection fixture. The unloading mechanism is used to pick up and unload the inspected connector. The detection method includes the following steps: Step S1: The connector to be tested is picked up from the tray by the feeding mechanism and accurately placed into a testing fixture on the turntable mechanism; Step S2: The turntable mechanism rotates intermittently according to a preset rhythm, sequentially transferring the testing fixture carrying the connector to each testing station; Step S3: When the testing fixture rotates to the first probe testing station, the second probe testing station, and the third probe testing station of the electrical testing mechanism, a contact conductivity test is performed on the connector's shell and terminals respectively to determine whether its electrical connectivity and insulation meet the standards. Step S4: When the detection fixture rotates to the first camera detection mechanism and the second camera detection mechanism, the following sub-steps are performed: Step S41: At the first direction inspection station, an image of the first side of the connector is acquired and compared with a standard image to detect appearance defects on the first side. Step S42: At the first flipping station, the connector is picked up and flipped 180 degrees before being put back into the inspection fixture, and images before and after the flipping are captured to verify the integrity of the action. Step S43: At the second direction inspection station, images of the second side of the connector exposed after flipping are acquired and compared to detect appearance defects on the second side. Step S44: At the four-sided inspection station, panoramic images of the four sides of the connector are acquired using the principle of reflection imaging to detect appearance defects on the sides. Step S45: At the second flipping station, the connector is picked up again and flipped 180 degrees to restore it to its initial orientation, in preparation for unloading. Step S5: Based on the combined results of electrical performance testing and appearance image testing, the connector is picked up from the testing fixture by the unloading mechanism and placed into different unloading trays according to its testing results.

2. The automatic connector testing method according to claim 1, characterized in that: The turntable mechanism includes a rotary divider, a turntable drive module, a rotating disk, and a disk support frame. The rotary divider is disposed on the surface of the frame, the turntable drive module is disposed inside the frame and is drivenly connected to the rotary divider, the rotating disk is disposed on the rotary divider, and multiple disk support frames are disposed on the frame and are evenly distributed in a circumferential direction on the frame. The top of each disk support frame is provided with a support roller, which is used to abut against the rotating disk for supporting the rotating disk.

3. The automatic connector detection method according to claim 2, characterized in that: The testing fixture includes a fixture base and a sub-fixture. The fixture base is mounted on a rotating disk, and the sub-fixture is mounted on the fixture base. The sub-fixture has a positioning groove for positioning the connector. The bottom surface of the positioning groove has a through hole, and one end of the through hole passes through the fixture base and the rotating disk in sequence.

4. The automatic connector testing method according to claim 1, characterized in that: The feeding mechanism includes a feeding support frame, a feeding tray placement assembly, a feeding transmission assembly, a feeding tray recovery assembly, and a feeding robot. The feeding support frame is located on one side of the frame. The feeding tray placement assembly and the feeding tray recovery assembly are respectively arranged on both sides of the feeding support frame. A feeding station is provided between the feeding tray placement assembly and the feeding tray recovery assembly. The feeding transmission assembly is provided with a feeding tray fixing assembly, which is used to drive the feeding tray fixing assembly to be transmitted between the feeding tray placement assembly, the feeding station, and the feeding tray recovery assembly. The feeding tray fixing assembly is used to fix the tray. The feeding robot is used to grab the connector from the tray at the feeding station and place it on the testing fixture.

5. The automatic connector testing method according to claim 1, characterized in that: The unloading mechanism includes an unloading support frame, an unloading tray placement assembly, an unloading conveying assembly, an unloading tray recovery assembly, and an unloading robot. The unloading support frame is located on one side of the machine frame. The unloading tray placement assembly and the unloading tray recovery assembly are respectively arranged on both sides of the unloading support frame. An unloading station is provided between the unloading tray placement assembly and the unloading tray recovery assembly. The unloading conveying assembly is provided with an unloading tray fixing assembly, which is used to drive the unloading tray fixing assembly to be conveyed between the unloading tray placement assembly, the unloading station, and the unloading tray recovery assembly. The unloading tray fixing assembly is used to fix the tray. The unloading robot is used to grip the connector in the inspection fixture and place it onto the tray in the unloading station.

6. The automatic connector testing method according to claim 1, characterized in that: The first probe testing station includes a first probe testing bracket, a first upper test module, and a first lower test module. The first upper test module and the first lower test module are arranged opposite to each other. The first upper test module is provided with a first upper test probe group, and the first lower test module is provided with a first lower test probe group. The first upper test probe group and the first lower test probe group are respectively used to perform contact conductivity tests on the connectors on the testing fixture. The second probe detection station includes a second probe detection bracket, a second upper test module, a second upper test probe group, and a first probe detection camera. The second probe detection bracket is mounted on the frame, the second upper test module is mounted on the second probe detection bracket, and the second upper test probe group is mounted on the drive end of the second upper test module. The second upper test module is used to drive the second upper test probe group to move toward the first connector surface of the detection fixture to make contact with the conductivity test. The detection end of the first probe detection camera faces the second upper probe group and is used to detect the movement position of the probe to determine the height of the terminal under test; the second upper probe group is provided with a first probe slide groove, and a first probe slider is slidably disposed on the first probe slide groove. The first probe slider slides along the first probe slide groove under the action of the first upper probe group. The first probe detection camera is used to detect the first probe slider, and a first measured feature is disposed on the first probe slider.

7. The automatic connector detection method according to claim 6, characterized in that: The third probe testing station includes a third probe testing bracket, a second lower test module, a second lower test probe group, a test clamping module, and a second probe testing camera. The third probe testing bracket is mounted on the frame, the second lower test module is mounted on the second probe testing bracket, and the second lower test probe group is mounted on the drive end of the second lower test module. The second lower test module is used to drive the second lower test probe group to move toward the second surface of the connector of the testing fixture to contact the conductive test. The detection end of the second probe detection camera faces the second lower probe group and is used to detect the probe movement position to determine the height of the terminal under test; the second lower probe group is provided with a second probe slide groove, and a second probe slider is slidably provided on the second probe slide groove. The second probe slider slides along the second probe slide groove under the action of the second lower probe group. The second probe detection camera is used to detect the second probe slider, and a second feature under test is provided on the second probe slider. The test clamping module is used to clamp the connector onto the test fixture during testing; In step S3, the second probe detection station and the third probe detection station also include a probe position calibration sub-step: Step S31: At the second probe detection station, during the process of the second upper test module driving the second upper test probe group to move downward to contact the connector terminal, the displacement of the first probe slider is monitored in real time by the first probe detection camera to indirectly measure and determine whether the height of the tested terminal is within the tolerance range. In step S32, at the third probe detection station, during the process of the second lower test module driving the second lower test probe group to move upward to contact the connector terminal, the displacement of the second probe slider is monitored in real time by the second probe detection camera to indirectly measure and determine whether the height of the tested terminal is within the tolerance range.

8. The automatic connector testing method according to claim 1, characterized in that: The first direction inspection station includes a first direction inspection bracket, a first direction lifting module, and a first inspection camera. A first inspection supplement light is provided below the first inspection camera. The first direction inspection bracket is mounted on the frame, the first direction lifting module is mounted on the first direction inspection bracket, and the first inspection camera is mounted on the first direction lifting module. The first direction lifting module is used to drive the first inspection camera to move up and down, and the first inspection camera is used to photograph and inspect the connector on the inspection fixture. The first flipping station includes a first flipping bracket, a first flipping clamping module, and a first flipping detection camera. The first flipping clamping module includes a first flipping lifting module and a first flipping clamping cylinder. The first flipping lifting module is mounted on the first flipping bracket, and the first flipping clamping cylinder is mounted on the first flipping lifting cylinder. It is used to clamp and flip the connector on the detection fixture and then put it back into the detection fixture. The first flipping detection camera is mounted on the first flipping bracket and is used to detect the connector before and after flipping.

9. The automatic connector testing method according to claim 8, characterized in that: The second direction inspection station includes a second direction inspection bracket, a second direction lifting module, and a second inspection camera. A second inspection supplement light is provided below the second inspection camera. The second direction inspection bracket is mounted on the frame, the second direction lifting module is mounted on the second direction inspection bracket, and the second inspection camera is mounted on the second direction lifting module. The second direction lifting module is used to drive the second inspection camera to move up and down, and the second inspection camera is used to photograph and inspect the connector on the inspection fixture. The second flipping station includes a second flipping bracket, a second flipping clamping module, and a second flipping inspection camera. The second flipping clamping module includes a second flipping lifting module and a second flipping clamping cylinder. The second flipping lifting module is mounted on the second flipping bracket, and the second flipping clamping cylinder is mounted on the second flipping lifting cylinder. It is used to clamp and flip the connector on the inspection fixture and then put it back into the inspection fixture. The second flipping inspection camera is mounted on the second flipping bracket and is used to inspect the connector before and after flipping. In step S4, the first flipping station and the second flipping station further include a flipping verification sub-step: Before and after each flipping action, the connector is photographed by the first flipping detection camera or the second flipping detection camera, respectively. The images before and after the flip are compared and analyzed to confirm whether the connector was successfully gripped, whether the flip angle was accurate, and whether there was any positional offset after being placed back into the fixture.

10. The automatic connector detection method according to claim 9, characterized in that: The four-sided inspection station includes a four-sided inspection bracket, a four-sided inspection photomask, a four-sided inspection reflector, and a four-sided inspection camera. The four-sided inspection camera is located at the top of the four-sided inspection bracket. The four-sided inspection photomask is located on the four-sided inspection bracket and below the four-sided inspection camera. The four-sided inspection reflector is located inside the four-sided inspection photomask and around the connector. The inspection end of the four-sided inspection camera faces the four-sided inspection photomask. In step S4, the specific process at the four surrounding inspection stations is as follows: The surrounding detection cameras take pictures from above; Light is reflected multiple times by the surrounding detection reflectors, forming uniform illumination around the connector; The four-sided detection camera captures panoramic reflection images of all sides of the connector at once through the openings of the four-sided detection mask. The acquired panoramic images are compared with preset standard images to detect whether there are scratches, stains, deformations or dimensional defects.

Images