Detection system and detection method for detecting injection molded part

Abstract

The invention relates to a full-automatic detection system and method for detecting injection molded parts, and belongs to the technical field of detection equipment. By integrating automatic assemblies such as feeding, conveying, overturning positioning, multi-station cooperative detection and code printing output, comprehensive detection of injection molding parts and product needles subjected to insert injection molding on the surfaces of the injection molding parts is achieved, manual sampling inspection is replaced, misjudgment is effectively avoided, the consistency of detection standards can be guaranteed, and meanwhile the detection efficiency is remarkably improved.

Description

Technical Field

[0001] This application relates to the field of testing equipment technology, and in particular to testing systems and methods for testing injection molded parts. Background Technology

[0002] There is an injection molded product using an insert injection molding process, which includes a first end face and a second end face that are opposite each other in the vertical direction, and a first side face and a second side face that are opposite each other in the horizontal direction. The first end face contains 52 iron product pins, the second end face opposite the first end face does not contain product pins, the first side face contains 22 iron product pins, and the second side face contains 30 iron product pins.

[0003] In related technologies, since the product requires measurement at many locations, manual sampling is often used; however, this manual method results in long measurement times, low efficiency, and inaccurate measurement results. Summary of the Invention

[0004] Therefore, it is necessary to provide a testing system and method for injection molded parts to address the above problems, so as to achieve comprehensive testing of injection molded products and avoid misjudgments caused by human intervention.

[0005] An inspection system for inspecting injection molded parts includes:

[0006] The rack provides the foundation for supporting the equipment;

[0007] The following components are sequentially arranged on the frame: a feeder, a first conveyor assembly, a second conveyor assembly, a transfer gripper assembly, a first inspection station, a second inspection station, a third inspection station, a fourth inspection station, a fifth inspection station, a coding station, and a production line conveyor belt.

[0008] The feeder is configured to place the injection molded part at the feed port of the first conveying assembly;

[0009] The first conveying component conveys the injection molded part to the discharge position that docks with the second conveying component;

[0010] The second conveying component receives the injection molded part from the first conveying component and flips and positions the injection molded part.

[0011] The transfer gripper assembly grabs the injection molded part after it has been positioned by the second conveying assembly, and sequentially conveys it to the first inspection station, the second inspection station, the third inspection station, the fourth inspection station, the fifth inspection station and the coding station;

[0012] The first inspection station inspects the metal product pins on the first end face of the injection molded part; the second inspection station inspects the height of the first side face of the injection molded part and the height of the top surface near the first side face; the third inspection station inspects the height of the second side face of the injection molded part and the height of the top surface near the second side face; the fourth inspection station performs positional inspection on the first end face of the injection molded part; and the fifth inspection station performs positional inspection on the side face of the injection molded part.

[0013] The coding station codes the qualified injection molded parts.

[0014] The conveyor belt of the production line receives and transports qualified injection molded parts after they have been coded.

[0015] In one embodiment, the first conveying component includes a conveyor belt with a surrounding panel arranged circumferentially around it, and a plurality of fans are linearly arranged on at least one side of the surrounding panel.

[0016] In one embodiment, the second transmission component includes:

[0017] First linear guide;

[0018] A first slide table is slidably mounted on the first linear guide rail;

[0019] The first suction cup is disposed on the first slide, and the initial position of the first suction cup is directly opposite the discharge position of the first conveying component;

[0020] The first turntable is located below the sliding position of the first suction cup, and the first turntable is provided with grippers on both sides for clamping and flipping the injection molded part.

[0021] The first platform is located below the first turntable and is used to receive the injection molded parts falling from the first turntable;

[0022] Second linear guide;

[0023] A second slide table is slidably mounted on the second linear guide rail, and the first stage is mounted on the second slide table;

[0024] A limiting plate, which is disposed at one end of the second linear guide rail, is used to limit the sliding stroke of the second slide table, so that the first loading platform, which has slid into place, is directly opposite the gripping position of the transfer gripper assembly.

[0025] In one embodiment, the transfer gripper assembly includes:

[0026] Fourth linear guide;

[0027] A fourth slide table that is slidably mounted on the fourth linear guide rail;

[0028] The third linear guide rail is disposed on the fourth slide;

[0029] A third slide table that is slidably mounted on the third linear guide rail;

[0030] The second suction cup is disposed on the third slide.

[0031] In one embodiment, the first detection station includes:

[0032] The fifth and sixth linear guides;

[0033] A fifth slide table that is slidably mounted on the fifth linear guide rail;

[0034] A sixth slide table that is slidably mounted on the sixth linear guide rail;

[0035] The continuity detection blocks are respectively set on the fifth slide and the sixth slide, and the bottom surface of the continuity detection blocks is provided with a detection probe that matches the position of the product needle on the first end face of the injection molded part.

[0036] In one embodiment, the second detection station includes:

[0037] The first push rod is used to abut against the second side of the injection molded part for positioning;

[0038] A first horizontal linear slide module and a first side height detection block disposed thereon, wherein the first side height detection block is directly opposite the first side of the injection molded part;

[0039] The first vertical linear slide module and the first top surface height detection block installed on it are positioned directly opposite the top surface near the first side of the injection molded part.

[0040] In one embodiment, the third detection station includes:

[0041] The second turntable is used to support and rotate the injection molded parts horizontally.

[0042] The second push rod is used to abut against the first side of the rotated injection molded part for positioning;

[0043] The second horizontal linear slide module and the second side height detection block installed on it are directly opposite the second side of the injection molded part;

[0044] The second vertical linear slide module and the second top surface height detection block installed on it are positioned directly opposite the top surface near the second side of the injection molded part.

[0045] In one embodiment, the fourth inspection station includes a third horizontal linear slide module and a first CCD camera mounted thereon, wherein the first CCD camera is shooting vertically downward and directly opposite the first end face of the injection molded part.

[0046] In one embodiment, the fifth detection station includes:

[0047] Second platform;

[0048] A third turntable is used to drive the second stage to rotate horizontally;

[0049] The fourth horizontal linear slide module and the second CCD camera mounted on it, the second CCD camera shooting direction is horizontally facing the second stage and directly opposite the side of the injection molded part.

[0050] In one embodiment, the coding station includes:

[0051] The third stage is used to support the injection molded parts;

[0052] Third vertical linear slide module;

[0053] The coding machine is installed on the third vertical linear slide module;

[0054] The third push rod is used to abut against the third vertical linear slide module to adjust the horizontal position of the coding machine.

[0055] On the other hand, this application provides a method for inspecting injection molded parts using the above-mentioned inspection system, comprising the following steps:

[0056] Step 1: Place the injection molded part onto the first conveyor assembly using the feeder;

[0057] Step two: The injection molded part is transferred from the first transfer component to the second transfer component;

[0058] Step 3: The injection molded part is picked up by the first suction cup of the second conveying component and transferred to the first turntable; the injection molded part is gripped by the claws of the first turntable and flipped so that the first end face is facing up and it falls into the first loading platform; the first loading platform carrying the injection molded part is transferred to the gripping position of the transfer gripper component by the second slide.

[0059] Step four: The injection molded parts are sequentially transferred to the first inspection station, the second inspection station, the third inspection station, the fourth inspection station, the fifth inspection station and the coding station for corresponding inspection and operation through the transfer gripper assembly;

[0060] Step 5: At the first testing station, the continuity testing block is pressed down, and the continuity of the product needle on the first end face is tested using the testing probe at its bottom.

[0061] Step 6: At the second inspection station, after the injection molded part is positioned by the first push rod, the height of the first side and the height of the top surface near the first side are detected by the first side height detection block and the first top surface height detection block, respectively.

[0062] Step 7: At the third inspection station, after the injection molded part is rotated by the second turntable and positioned by the second push rod, the height of the second side and the height of the top surface near the second side are detected by the second side height detection block and the second top surface height detection block, respectively.

[0063] Step 8: At the fourth inspection station, the first end face is photographed by the first CCD camera to perform positional detection.

[0064] Step 9: At the fifth inspection station, place the injection molded part on the second stage, take an image of one side using the second CCD camera, rotate the injection molded part using the third turntable, and take an image of the other side to perform side position measurement.

[0065] Step 10: At the coding station, code the qualified injection molded parts.

[0066] Step 11: The qualified injection molded parts after coding are placed on the conveyor belt of the production line and packaged for output using the transfer gripper assembly.

[0067] The aforementioned inspection system and method for injection molded parts inspection avoid the problems of traditional manual inspection, which requires operators to perform spot checks at different workstations, resulting in long inspection times and high labor intensity. By replacing manual intervention with automated design, the inspection time is reduced, production efficiency is improved, and inconsistencies caused by personnel fatigue or different operating habits are completely avoided. In addition, manual spot checks in related technologies are limited by efficiency and fatigue, and can only check some items. Furthermore, it is difficult to quantify and judge complex morphological features such as position. This application can comprehensively inspect all key features of injection molded products, with high efficiency and high accuracy.

[0068] This application also has the following advantages:

[0069] This application enables the tracking of all test data for a product by marking mobile phone information on injection molded parts. This makes the production process traceable in terms of quality data, and the quality status of any batch of products can be quickly queried and analyzed. It provides strong data support for process improvement, quality problem tracing, and product life cycle management, which is incomparable to manual recording. Attached Figure Description

[0070] Figure 1 This is a schematic diagram of the injection molded part that needs to be tested in this application.

[0071] Figure 2 This is a schematic diagram of the overall structure of this application.

[0072] Figure 3 This is a schematic diagram of the structure of the first transmission component of this application.

[0073] Figure 4 This is a schematic diagram of the structure of the second transmission component of this application.

[0074] Figure 5 This is a schematic diagram of the transfer gripper assembly of this application.

[0075] Figure 6 This is a schematic diagram of the structure of the first testing station in this application.

[0076] Figure 7 This is a schematic diagram of the structure of the second testing station in this application.

[0077] Figure 8 This is a schematic diagram of the structure of the third testing station in this application.

[0078] Figure 9 This is a schematic diagram of the structure of the fourth testing station in this application.

[0079] Figure 10 This is a schematic diagram of the structure of the fifth testing station in this application.

[0080] Figure 11 This is a schematic diagram of the coding station structure in this application.

[0081] Among them: 1. Injection molded parts;

[0082] 101. First end face; 102. Second end face; 103. First side face; 104. Second side face;

[0083] 10. Rack;

[0084] 100. Feeder; 200. First conveyor assembly; 300. Second conveyor assembly; 400. Transfer gripper assembly; 500. First inspection station; 600. Second inspection station; 700. Third inspection station; 800. Fourth inspection station; 900. Fifth inspection station; 1000. Coding station; 1100. Conveyor belt for production line;

[0085] 210. Conveyor belt; 220. Enclosure panel; 230. Fan;

[0086] 310. First linear guide rail; 320. First slide table; 330. First suction cup; 340. First turntable; 350. First stage; 360. Second slide table; 370. Second linear guide rail; 380. Limiting plate;

[0087] 410. Second suction cup; 420. Third slide; 430. Third linear guide; 440. Fourth slide; 450. Fourth linear guide;

[0088] 510. Fifth slide; 520. Fifth linear guide; 530. Sixth slide; 540. Sixth linear guide; 550. Continuity detection block;

[0089] 610. First push rod; 620. First side height detection block; 630. First top height detection block; 640. First horizontal linear slide module; 650. First vertical linear slide module;

[0090] 710. Second push rod; 720. Second turntable; 730. Second side height detection block; 740. Second horizontal linear slide module; 750. Second top surface height detection block; 760. Second vertical linear slide module;

[0091] 810. First CCD camera; 820. Third horizontal linear slide module;

[0092] 910. Second CCD camera; 920. Fourth horizontal linear slide module; 930. Third turntable; 940. Second stage;

[0093] 1010, Third push rod; 1020, Third vertical linear slide module; 1030, Marking machine; 1040, Third loading platform. Detailed Implementation

[0094] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0095] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0096] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0097] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0098] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0099] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0100] See Figures 1 to 11 The diagram shows the overall layout of a testing system for testing injection molded parts according to an embodiment of this application.

[0101] One embodiment of this application provides an inspection system for inspecting injection molded parts, used for automated and comprehensive inspection of injection molded parts 1 embedded with iron product needles. The injection molded part 1 has a first end face 101 and a second end face 102 opposite each other in the vertical direction, and a first side face 103 and a second side face 104 opposite each other in the horizontal direction. Fifty-two iron product needles are disposed on the first end face 101, twenty-two iron product needles are disposed on the first side face 103, and thirty iron product needles are disposed on the second side face 104.

[0102] An inspection system for injection molded parts includes a frame 10, which provides a rigid support foundation for the entire system. On the frame 10, following the inspection process flow, are arranged sequentially the following components: a feeder 100, a first conveyor assembly 200, a second conveyor assembly 300, a transfer gripper assembly 400, a first inspection station 500, a second inspection station 600, a third inspection station 700, a fourth inspection station 800, a fifth inspection station 900, a coding station 1000, and a conveyor belt 1100.

[0103] In some embodiments, the feeder 100 (which may be in the form of a robotic arm) picks up the injection molded parts 1 one by one and places them into the feed port of the first conveying assembly 200.

[0104] In some embodiments, the first conveying assembly 200 mainly includes a conveyor belt 210, around which a surrounding plate 220 is arranged. In particular, a plurality of fans 230 are arranged linearly on at least one side of the surrounding plate 220. When these fans 230 are working, they can blow away dust adhering to the surface of the injection molded part 1 or between the product pins, playing a role in cleaning and cooling, and preparing for subsequent precision inspection. The conveyor belt 210 conveys the injection molded part 1 to its discharge position, which is precisely docked with the receiving end of the second conveying assembly 300.

[0105] In some embodiments, the second conveying component 300 is responsible for receiving the injection molded part 1 from the first conveying component 200 and positioning and adjusting its attitude; the second conveying component 300 includes a first linear guide rail 310, a first slide table 320, a first suction cup 330, a first turntable 340, a first stage 350, a second slide table 360, a second linear guide rail 370 and a limiting plate 380.

[0106] Specifically, the first slide table 320 is slidably mounted on the first linear guide rail 310. The first suction cup 330 is fixedly mounted on the first slide table 320, and its initial position is directly opposite the discharge position of the conveyor belt 210. When the injection molded part 1 is conveyed to the discharge position, the first slide table 320 drives the first suction cup 330 to move and pick up the injection molded part 1, and then moves it horizontally to directly above the first turntable 340;

[0107] Furthermore, movable grippers are provided on both sides of the first turntable 340. When the first suction cup 330 moves the injection molded part 1 above the first turntable 340, the grippers move to hold the injection molded part 1. Then, the first turntable 340 drives the grippers and the injection molded part 1 to rotate 180 degrees in the vertical direction. This action not only makes the first end face 101 rotate upward (for easy inspection at subsequent workstations), but also at this time the injection molded part 1 is located on the end face close to the first platform 350. After the rotation is completed, the grippers are released, and the injection molded part 1 falls onto the first platform 350 located directly below the first turntable 340 under gravity.

[0108] Furthermore, the first stage 350 is fixedly mounted on the second slide 360, which is slidably mounted on the second linear guide 370. The second slide 360 ​​drives the first stage 350 and the injection molded part 1 on it to slide along the second linear guide 370 until the second slide 360 ​​abuts against the limiting plate 380 fixed to one end of the second linear guide 370. This design ensures that after each sliding stop, the position of the injection molded part 1 on the first stage 350 is precisely aligned with the initial gripping position of the second suction cup 410 in the transfer gripper assembly 400, realizing precise positioning and transfer between workstations.

[0109] In some embodiments, the transfer gripper assembly 400 is used to transport the injection molded part 1 within the entire inspection system. There may be at least one such assembly. It is responsible for sequentially gripping and transferring the injection molded part 1 from the positioning station of the second transfer assembly 300 to the subsequent inspection stations and coding stations 1000.

[0110] Specifically, the component includes a fourth linear guide rail 450, a fourth slide table 440, a third linear guide rail 430, a third slide table 420, and a second suction cup 410. The fourth slide table 440 is slidably mounted on the fourth linear guide rail 450. The third linear guide rail 430 is fixedly mounted on the fourth slide table 440, and the third slide table 420 is slidably mounted on the third linear guide rail 430. The second suction cup 410 is fixedly mounted on the third slide table 420 and is used to pick up the injection molded part 1. By controlling the sliding of the fourth slide table 440 along the fourth linear guide rail 450, the position of the entire third linear guide rail 430 can be changed. By controlling the sliding of the third slide table 420 along the third linear guide rail 430, the horizontal position of the second suction cup 410 can be changed. The coordinated movement of the two linear guide rails allows the second suction cup 410 to achieve a large-scale, precise movement, thereby covering the range of motion from the gripping position to all workstations and efficiently completing the transfer task.

[0111] In some embodiments, the first detection station 500 is used to detect the conductivity of all iron product pins on the first end face 101 of the injection molded part 1, including a fifth linear guide rail 520, a fifth slide table 510, a sixth linear guide rail 540, a sixth slide table 530, and a conductivity detection block 550; wherein, the fifth slide table 510 is slidably disposed on the fifth linear guide rail 520, the sixth slide table 530 is slidably disposed on the sixth linear guide rail 540, and the two conductivity detection blocks 550 are respectively fixedly installed on the fifth slide table 510 and the sixth slide table 530;

[0112] Furthermore, the bottom surface of the continuity detection block 550 is provided with multiple detection probes that match the precise positions of the fifty-two product pins on the first end face 101. During operation, the two continuity detection blocks 550 move downward under the drive of their respective slides, so that all detection probes simultaneously contact the top of the corresponding product pins, and the continuity of the circuit is used to determine whether there are defects such as missing, bent or poor internal connection of the product pins.

[0113] In some embodiments, the second detection station 600 is used to detect the height of the first side surface 103 of the injection molded part 1 and the height of the top surface near the end of the first side surface 103. It includes a first push rod 610, a first horizontal linear slide module 640, a first side surface height detection block 620, a first vertical linear slide module 650, and a first top surface height detection block 630. The first push rod 610 actuates and abuts against the second side surface 104 of the injection molded part 1, thereby positioning the injection molded part 1. Subsequently, the first side surface height detection block 620, mounted on the first horizontal linear slide module 640, moves towards the first side surface 103 and measures its height using a contact sensor. Simultaneously, the first top surface height detection block 630, mounted on the first vertical linear slide module 650, moves downward to measure the height of the top surface near the end of the first side surface 103.

[0114] In some embodiments, the third inspection station 700 is used to inspect the height of the second side 104 of the injection molded part 1 and the height of the top surface near one end of the second side 104, including a second turntable 720, a second push rod 710, a second horizontal linear slide module 740, a second side height detection block 730, a second vertical linear slide module 760, and a second top surface height detection block 750. The second turntable 720 is used to support the injection molded part 1, which is placed on it by a transfer gripper. First, the second turntable 720 rotates 180 degrees horizontally, rotating the second side 104, which was originally facing one side, to a direction convenient for inspection; then, the second push rod 710 actuates, abutting against the first side 103 of the rotated injection molded part 1 for positioning. Subsequently, the second side height detection block 730, installed on the second horizontal linear slide module 740, moves toward the second side 104 to measure its height; the second top surface height detection block 750, installed on the second vertical linear slide module 760, moves downward to measure the top surface height near the end of the second side 104.

[0115] In some embodiments, the fourth inspection station 800 is used to perform visual inspection of the position of the product pins on the first end face 101 after it has been flipped upwards, including a third horizontal linear slide module 820 and a first CCD camera 810. The first CCD camera 810 is fixedly mounted on the third horizontal linear slide module 820, and its shooting direction is vertically downwards, directly facing the first end face 101 of the injection molded part 1 below. By driving the first CCD camera 810 to move in the horizontal plane through the third horizontal linear slide module 820, the entire first end face 101 can be scanned to obtain a clear image, and the position of all product pins can be analyzed using image processing algorithms to determine whether they meet the design tolerances.

[0116] In some embodiments, the fifth inspection station 900 is used to perform positional visual inspection on the side of the injection molded part 1, and includes a third turntable 930, a second stage 940, a fourth horizontal linear slide module 920, and a second CCD camera 910. The second stage 940 carries the injection molded part 1 and is driven to rotate horizontally by the third turntable 930. The second CCD camera 910 is fixedly mounted on the fourth horizontal linear slide module 920, and its shooting direction is horizontal, facing the side of the injection molded part 1.

[0117] When a side needs to be inspected, the third turntable 930 rotates to face the side towards the second CCD camera 910, and the camera takes a picture for inspection. After completion, the third turntable 930 drives the second stage 940 and the injection molded part 1 on it to rotate, turning the other side to be inspected towards the second CCD camera 910 for picture inspection. The fourth horizontal linear slide module 920 can be used to fine-tune the camera focus or for scanning.

[0118] In some embodiments, the coding station 1000 is used to laser-code or inkjet-code the injection molded part 1 that has been determined to be qualified by all inspection stations, giving it a unique identifier (such as a QR code), and includes a third stage 1040, a third vertical linear slide module 1020, a coding machine 1030, and a third push rod 1010. The injection molded part 1 is placed on the third stage 1040;

[0119] Furthermore, the coding machine 1030 is mounted on the third vertical linear slide module 1020, through which its vertical height can be adjusted. The third push rod 1010 is used to abut against the side of the third vertical linear slide module 1020, and by applying a horizontal force, the horizontal position of the coding machine 1030 component is finely adjusted to ensure accurate coding position.

[0120] Finally, the qualified injection molded part 1 is picked up by the second suction cup 410 of the transfer gripper assembly 400 and placed on the assembly line conveyor belt 1100, and transported to the next process for packaging and warehousing.

[0121] In some embodiments, waste bins are provided next to the first inspection station 500, the second inspection station 600, the third inspection station 700, the fourth inspection station 800, and the fifth inspection station 900. The transfer gripper assembly 400 throws the products that fail the inspection at each inspection station into the waste bins.

[0122] In practical applications, the workflow of this application is as follows:

[0123] During operation, the feeder 100 places the injection molded part 1 onto the conveyor belt 210 of the first conveyor assembly 200, and after cooling and cleaning, it is sent to the feed port of the second conveyor assembly 300.

[0124] The first suction cup 330 of the second conveying component 300 picks up the workpiece and transfers it to the first turntable 340. After being rotated 180 degrees by the gripper so that the first end face 101 faces upward, it falls into the first loading table 350. Then the first loading table 350 slides to the gripping position of the transfer gripper.

[0125] The second suction cup 410 of the transfer gripper assembly 400 picks up the workpiece and sequentially transfers it to:

[0126] The first testing station 500 performs product needle conductivity testing;

[0127] The second inspection station 600 performs the height inspection of the first side 103 and the top surface near the first side 103.

[0128] The third inspection station 700 performs the height inspection of the second side 104 and the top surface near the second side 104.

[0129] The fourth inspection station 800 performs visual position measurement on the first end face 101;

[0130] The fifth inspection station, 900, performs side visual position measurement.

[0131] The coding station 1000 codes qualified products.

[0132] Finally, the qualified products are placed on the conveyor belt 1100 for output.

[0133] In this application, all linear slide modules can be driven by screws or synchronous belts.

[0134] In summary, this application integrates automated components such as feeding, conveying, flipping and positioning, multi-station collaborative detection and coding output to achieve comprehensive detection of injection molded part 1 and its surface insert injection pins, replacing manual sampling inspection, effectively avoiding misjudgment, ensuring the consistency of detection standards, and significantly improving detection efficiency.

[0135] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0136] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A testing system for inspecting injection molded parts, characterized in that, include: The rack (10) provides the foundation for supporting the equipment; The following components are sequentially arranged on the frame (10): a feeder (100), a first conveyor assembly (200), a second conveyor assembly (300), a transfer gripper assembly (400), a first inspection station (500), a second inspection station (600), a third inspection station (700), a fourth inspection station (800), a fifth inspection station (900), a coding station (1000), and a production line conveyor belt (1100). The feeder (100) is configured to place the injection molded part (1) at the inlet of the first conveying assembly (200); The first conveying component (200) conveys the injection molded part (1) to the discharge position that docks with the second conveying component (300); The second transfer component (300) receives the injection molded part (1) from the first transfer component (200) and flips and positions the injection molded part (1); The transfer gripper assembly (400) grips the injection molded part (1) after it has been positioned by the second transfer assembly (300), and sequentially transfers it to the first inspection station (500), the second inspection station (600), the third inspection station (700), the fourth inspection station (800), the fifth inspection station (900) and the coding station (1000); The first inspection station (500) inspects the metal product pins on the first end face (101) of the injection molded part (1); the second inspection station (600) inspects the height of the first side face (103) of the injection molded part (1) and the height of the top surface near the end of the first side face (103); the third inspection station (700) inspects the height of the second side face (104) of the injection molded part (1) and the height of the top surface near the end of the second side face (104); the fourth inspection station (800) performs positional inspection on the first end face (101) of the injection molded part (1); and the fifth inspection station (900) performs positional inspection on the side face of the injection molded part (1). The coding station (1000) codes the qualified injection molded parts (1); The assembly line conveyor belt (1100) receives and transports qualified injection molded parts (1) after being coded.

2. The inspection system for injection molded parts according to claim 1, characterized in that, The first conveying assembly (200) includes a conveyor belt (210) with a surrounding plate (220) arranged around it, and a plurality of fans (230) are linearly arranged on at least one side of the surrounding plate (220).

3. The inspection system for injection molded parts inspection according to claim 1 or 2, characterized in that, The second transmission component (300) includes: First linear guide (310); A first slide (320) is slidably disposed on the first linear guide (310); A first suction cup (330) is disposed on the first slide (320), and the initial position of the first suction cup (330) is directly opposite the discharge position of the first conveying component (200); The first turntable (340) is located below the sliding position of the first suction cup (330), and the first turntable (340) has grippers on both sides for clamping and flipping the injection molded part (1). A first stage (350) is disposed below the first turntable (340) and is used to receive the injection molded part (1) falling from the first turntable (340); Second linear guide (370); A second slide (360) is slidably disposed on the second linear guide (370), and the first stage (350) is disposed on the second slide (360); A limiting plate (380) is disposed at one end of the second linear guide (370) to limit the sliding stroke of the second slide (360) so that the first loading platform (350) in the sliding position is directly opposite the gripping position of the transfer gripper assembly (400).

4. The inspection system for injection molded parts inspection according to claim 3, characterized in that, The transfer gripper assembly (400) includes: Fourth linear guide (450); A fourth slide table (440) is slidably disposed on the fourth linear guide (450); The third linear guide (430) is disposed on the fourth slide (440); A third slide (420) is slidably mounted on the third linear guide (430); The second suction cup (410) is disposed on the third slide (420).

5. The inspection system for injection molded parts according to claim 1, characterized in that, The first testing station (500) includes: The fifth linear guide (520) and the sixth linear guide (540); A fifth slide table (510) is slidably mounted on the fifth linear guide (520); A sixth slide table (530) is slidably mounted on the sixth linear guide (540); Conductive detection blocks (550) are respectively set on the fifth slide (510) and the sixth slide (530). The bottom surface of the conductive detection block (550) is provided with a detection probe that matches the position of the product needle on the first end face (101) of the injection molded part (1).

6. The inspection system for injection molded parts according to claim 1, characterized in that, The second inspection station (600) includes: The first push rod (610) is used to abut against the second side (104) of the injection molded part (1) for positioning; The first horizontal linear slide module (640) and the first side height detection block (620) disposed thereon, the first side height detection block (620) being directly opposite the first side (103) of the injection molded part (1); The first vertical linear slide module (650) and the first top surface height detection block (630) set thereon, the first top surface height detection block (630) is directly opposite the top surface of the first side (103) of the injection molded part (1).

7. The inspection system for injection molded parts according to claim 1, characterized in that, The third inspection station (700) includes: The second turntable (720) is used to support and horizontally rotate the injection molded part (1); The second push rod (710) is used to abut against the first side (103) of the rotated injection molded part (1) for positioning; The second horizontal linear slide module (740) and the second side height detection block (730) disposed thereon, the second side height detection block (730) being directly opposite the second side (104) of the injection molded part (1); The second vertical linear slide module (760) and the second top surface height detection block (750) provided thereon, the second top surface height detection block (750) is directly opposite the top surface of the second side (104) of the injection molded part (1).

8. The inspection system for injection molded parts according to claim 1, characterized in that, The fourth inspection station (800) includes a third horizontal linear slide module (820) and a first CCD camera (810) mounted thereon. The first CCD camera (810) is shooting vertically downward and directly opposite the first end face (101) of the injection molded part (1). The fifth inspection station (900) includes: Second stage (940); A third turntable (930) for driving the second stage (940) to rotate horizontally; The fourth horizontal linear slide module (920) and the second CCD camera (910) mounted thereon, the second CCD camera (910) shooting direction is horizontally facing the second stage (940) and directly opposite the side of the injection molded part (1).

9. The inspection system for injection molded parts according to claim 1, characterized in that, The coding station (1000) includes: The third stage (1040) is used to support the injection molded part (1); Third vertical linear slide module (1020); The coding machine (1030) is installed on the third vertical linear slide module (1020); The third push rod (1010) is used to abut against the third vertical linear slide module (1020) to adjust the horizontal position of the coding machine (1030).

10. A method for inspecting injection molded parts using the inspection system described in any one of claims 1-9, characterized in that, Includes the following steps: Step 1: The injection molded part (1) is placed on the first conveying assembly (200) by the feeder (100); Step 2: The injection molded part (1) is transferred to the second transfer assembly (300) via the first transfer assembly (200); Step 3: The injection molded part (1) is picked up by the first suction cup (330) of the second transfer assembly (300) and transferred to the first turntable (340); the injection molded part (1) is held by the grippers of the first turntable (340) and flipped so that the first end face (101) faces upward and falls into the first loading platform (350); the first loading platform (350) carrying the injection molded part (1) is transferred to the gripping position of the transfer gripper assembly (400) by the second slide (360); Step 4: The injection molded part (1) is sequentially transferred to the first inspection station (500), the second inspection station (600), the third inspection station (700), the fourth inspection station (800), the fifth inspection station (900) and the coding station (1000) by the transfer gripper assembly (400) for corresponding inspection and coding operations; Step 5: At the first testing station (500), the continuity testing block (550) is pressed down, and the continuity of the metal product needle on the first end face (101) is detected by the testing probe at the bottom of the continuity testing block (550). Step 6: At the second inspection station (600), after the injection molded part (1) is positioned by the first push rod (610), the height of the first side (103) and the height of the top surface near the first side (103) are detected by the first side height detection block (620) and the first top surface height detection block (630), respectively. Step 7: At the third inspection station (700), after rotating the injection molded part (1) by the second turntable (720) and positioning it by the second push rod (710), the height of the second side (104) and the height of the top surface near the second side (104) are detected by the second side height detection block (730) and the second top surface height detection block (750), respectively. Step 8: At the fourth inspection station (800), an image of the first end face (101) is captured by the first CCD camera (810) to perform positional detection. Step 9: At the fifth inspection station (900), the injection molded part (1) is placed on the second stage (940). After taking an image of one side through the second CCD camera (910), the injection molded part (1) is rotated through the third turntable (930) and an image of the other side is taken to perform side position measurement. Step 10: At the coding station (1000), the qualified injection molded parts (1) are coded; Step 11: The qualified injection molded part (1) after coding is placed on the conveyor belt (1100) of the production line and packaged for output by transferring the gripper assembly (400).

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