A runner plate defect detection apparatus

Abstract

The utility model relates to the field of flow channel plate manufacturing detection, concretely provides a kind of flow channel plate defect detection equipment, including rotary table, is erected on marble pedestal;Detection station is distributed along the rotary table circumference, and each group detection station includes multi-axis manipulator, visual detection component and station special detection mechanism;Central control system includes man-machine interface, PLC and controller;Safety protection system includes safety light curtain, leakage protection switch and emergency stop button, and the safety light curtain is set in press mounting and moving part area. Through multi-station collaborative detection, high-precision vision and linear laser fusion technology, and modular safety protection design, the problem of low traditional flow channel plate detection efficiency, high miss rate is solved, and the quality of flow channel plate large-scale production is improved.

Description

Technical Field

[0001] This utility model relates to the field of flow channel plate manufacturing and inspection, specifically to a flow channel plate defect detection device. Background Technology

[0002] In the manufacturing process of runner plates, defect detection is a crucial step in ensuring product quality. Traditional runner plate defect detection methods mainly rely on manual visual inspection and simple mechanical measuring tools, which have many limitations. First, manual inspection is inefficient and easily affected by subjective factors, leading to a high rate of missed detections. Second, mechanical measuring tools have limited accuracy and cannot meet the needs of high-precision inspection. Furthermore, as the manufacturing industry moves towards automation and intelligence, traditional inspection methods are no longer adequate for the requirements of modern production lines.

[0003] To address the shortcomings of existing technologies, this invention proposes a flow channel plate defect detection device. It aims to achieve efficient and accurate detection of flow channel plate defects through multi-station collaborative detection, high-precision vision and line laser fusion technology, and modular safety protection design. This device is particularly suitable for the quality control of large-scale production of PD20 type flow channel plates, featuring fast cycle time, strong compatibility, and low maintenance costs, effectively improving production efficiency and product quality. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a flow channel plate defect detection device.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A flow channel plate defect detection device, comprising:

[0007] A flow channel plate defect detection device, characterized in that it comprises:

[0008] The rotary table is mounted on a marble base;

[0009] Inspection stations are distributed around the circumference of the rotary table. Each inspection station includes a multi-axis robot, a vision inspection component, and a station-specific inspection mechanism.

[0010] The central control system includes a human-machine interface, PLC, and controller;

[0011] The safety protection system includes a safety light curtain, a leakage current protection switch, and an emergency stop button. The safety light curtain is installed in the area of ​​the pressing and moving parts.

[0012] As a further improvement of this utility model, the inspection station includes a hole surface defect inspection station, the structure of which includes:

[0013] A multi-axis robot for hole surface defect detection is provided. The base of the multi-axis robot is fixed on a support frame outside the rotary table. The vision inspection component for the hole surface defect detection station is installed at the end of the robot via an adjustable bracket. The dedicated inspection mechanism for the hole surface defect detection station includes two sets of cameras. One set is driven by the robot to move along a preset path along the hole end face and water jet slit. The other set is fixed on the top of the support frame and faces the center of the rotary table. The shooting angle of the cameras covers the detection area of ​​welding slag, scratches and foreign objects on the hole surface, and is connected to the central control system via a bus.

[0014] As a further improvement of this utility model, the inspection station also includes a hole internal defect inspection station. The special inspection mechanism for the hole internal defect inspection station includes an endoscope lens module, which is connected to the end of the multi-axis robot of the hole internal defect inspection station through a universal adjustment arm. The endoscope lens module has a built-in focusing mechanism. The multi-axis robot of the hole internal defect inspection station drives the endoscope lens module to insert into the hole, and performs multi-position scanning of the thread crawling material and foreign objects inside the hole through the focusing mechanism. The scanning data is transmitted to the central control system in real time.

[0015] As a further improvement of this utility model, the inspection station also includes a weld size inspection station. The special inspection mechanism for the weld size inspection station includes a line laser scanning module. The module is vertically installed on the side of the rotary table via a slide driven by a linear motor. The movement direction of the slide is parallel to the weld extension direction. The line laser scanning module performs multi-area scanning on the flatness of the manifold plate and the position of the five-hole assembly. The manifold plate area is scanned three times by a first line laser sensor, and the five-hole assembly area is scanned twice by a second line laser sensor.

[0016] As a further improvement of this utility model, the inspection station also includes a weld misalignment inspection station. The special inspection mechanism for the weld misalignment inspection station includes a lifting and rotating mechanism, with its lifting servo electric cylinder fixed below the rotary table and a hollow rotating platform installed on the top of the electric cylinder. The visual inspection component of the weld misalignment inspection station is connected to the end of the multi-axis robot of the weld misalignment inspection station through an L-shaped bracket, with its lens facing the bearing surface of the lifting and rotating mechanism. After the lifting servo electric cylinder lifts the flow channel plate, the rotating platform drives it to rotate to a preset angle, cooperating with the multi-axis robot of the weld misalignment inspection station to perform supplementary inspection of the bottom weld and installation misalignment.

[0017] As a further improvement of this utility model, the inspection station also includes a loading and unloading station, which is equipped with a lifting cylinder. The piston rod of the lifting cylinder penetrates vertically through the rotary table surface to lift the flow channel plate to the picking and placing height. A material rack is provided on the outside of the rotary table, and its positioning pin matches the mounting hole at the bottom of the flow channel plate. The lifting cylinder is isolated from the robot arm or manual operation area by a safety light curtain. The lifting cylinder is linked with a double-button start device.

[0018] As a further improvement of this utility model, it also includes a control cabinet, in which the central control system is integrated. The control cabinet is divided into strong and weak current zones, and the strong current lines and weak current signal lines are separated by partitions.

[0019] As a further improvement of this utility model, the safety protection system also includes a multi-axis manipulator drive motor and an emergency stop button connected by a hardware interlock relay, and the transmitter and receiver of the safety light curtain are respectively installed on the guardrails on both sides of the rotary table to form a closed detection area.

[0020] As a further improvement of this utility model, the marble base is rigidly connected to the rotary table by bolts, and its pad surface is provided with shock-absorbing pads and grounding terminals are provided around it.

[0021] The beneficial effects of this utility model are: This utility model solves the problems of low detection efficiency and high missed detection rate of traditional flow channel plates by multi-station collaborative detection, high-precision vision and line laser fusion technology, and modular safety protection design, thereby improving the quality of large-scale production of flow channel plates. It has the characteristics of fast cycle time, strong compatibility and low maintenance cost. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the rotary table structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the hole surface defect detection station structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the hole internal defect detection station structure of this utility model;

[0026] Figure 5 This is a schematic diagram of the endoscope structure in the endoscope lens module of this utility model;

[0027] Figure 6 This is a schematic diagram of the weld size inspection station structure of this utility model;

[0028] Figure 7 This is a schematic diagram of the line laser scanning module and slide structure of this utility model;

[0029] Figure 8 This is a schematic diagram of the weld misalignment detection station structure of this utility model;

[0030] Figure 9 This is a schematic diagram of the lifting and rotating mechanism of this utility model.

[0031] Figure captions: 1. Rotary table; 2. Inspection station; 21. Hole surface defect inspection station; 211. Multi-axis robot for hole surface defect inspection station; 212. Vision inspection component for hole surface defect inspection station; 22. Hole internal defect inspection station; 221. Multi-axis robot for hole internal defect inspection station; 222. Endoscope module; 23. Weld size inspection station; 231. Line laser scanning module; 232. Slide table; 233. Multi-axis robot arm for weld size inspection station; 24. Weld misalignment inspection station; 241. Lifting and rotating mechanism; 242. Vision inspection component for weld misalignment inspection station; 243. Multi-axis robot for weld misalignment inspection station; 3. Control cabinet. Detailed Implementation

[0032] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, and the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0033] like Figure 1 As shown, it includes:

[0034] A flow channel plate defect detection device, such as Figures 1 to 9 As shown, it includes:

[0035] The rotary table adopts a 6-station indexing plate structure, mounted on a marble base (1800mm×1800mm×250mm), and is rigidly connected by bolts. The base pad is equipped with shock-absorbing pads to improve stability, and grounding terminals are installed around the perimeter. Multiple inspection stations are distributed around the outer circumference of the rotary table, each station independently completing a specific inspection task to ensure that the production cycle does not exceed 33 seconds per unit.

[0036] Inspection stations are distributed circumferentially along the rotary table, including stations for detecting surface defects in holes, detecting internal defects in holes, detecting weld dimensions, detecting weld misalignment, and loading / unloading. Each station is equipped with a multi-axis robot (such as the Estun ER8-720MI), vision inspection components (such as Hikvision cameras and line laser sensors), and a dedicated inspection mechanism, communicating in real time with the central control system via a bus.

[0037] The central control system integrates a human-machine interface (touchscreen), PLC (such as Keyence KV-8000), and controller, supporting hierarchical access control (administrator and operator). It features automatic operation status monitoring, parameter setting, fault alarms, and production data statistics. The system reserves over 20% of its I / O interfaces, supporting remote debugging.

[0038] The safety protection system includes a safety light curtain (installed in the pressing and moving parts area), a leakage protection switch, an emergency stop button (connected to the robot drive motor via a hardware interlock relay), and protective railing warning signs to ensure that the equipment operating noise is below 80 decibels.

[0039] Furthermore, such as Figures 1 to 9 As shown, the inspection station includes a hole surface defect inspection station, the structure of which includes:

[0040] The inspection station 2 includes a hole surface defect inspection station 21, the structure of which includes:

[0041] A multi-axis robot 211 for hole surface defect detection station has its base fixed on a support frame on the outside of the rotary table 1. A vision inspection component 212 for the hole surface defect detection station is installed at the end of the robot via an adjustable bracket. The dedicated inspection mechanism for the hole surface defect detection station includes two sets of cameras. One set is driven by the robot to move along a preset path along the hole end face and water jet slit, while the other set is fixed on the top of the support frame and faces the center of the rotary table 1. The camera's shooting angle covers the detection area of ​​welding slag, scratches, and foreign objects on the hole surface and is connected to the central control system via a bus.

[0042] The multi-axis robotic arm base is fixed to the outer support frame of the rotary table, and two sets of camera components (provided by the client) are mounted at the end via adjustable brackets. One set of cameras is driven by the robotic arm to take pictures of the end face of the holes and the water-cut seams (a total of 13 locations) along a preset path, covering the detection of welding slag, scratches, and foreign objects on the high-gloss surface of 25 holes; the other set of cameras is fixed on the top of the support frame, facing the center of the rotary table, and is used for global shooting of the back-lit seams. The cameras transmit 22 images in real time to the vision processor (such as Hikvision VC4510) via a bus, and combine them with deep learning algorithms (THINKPAD J9 computer) to complete defect classification and judgment.

[0043] Furthermore, such as Figures 1 to 9 As shown, the inspection station 2 also includes a hole internal defect inspection station 22. The dedicated inspection mechanism of the hole internal defect inspection station 22 includes an endoscope lens module 222, which is connected to the end of the multi-axis robot 221 of the hole internal defect inspection station through a universal adjustment arm. The endoscope lens module 222 has a built-in focusing mechanism with an adjustable focal length, and is used to perform multi-position scanning of thread crawling and foreign objects in 18 front holes, 2 back holes and 2 side reference holes. The multi-axis robot 221 of the hole internal defect inspection station drives the endoscope lens module 222 to be inserted into the hole, and performs multi-position scanning of thread crawling and foreign objects in the hole through the focusing mechanism. The scanning data is transmitted to the central control system in real time.

[0044] Furthermore, such as Figures 1 to 9As shown, the inspection station 2 also includes a weld size inspection station 23. The weld size inspection station is equipped with a multi-axis robotic arm 233. The dedicated inspection mechanism of the weld size inspection station 23 includes a line laser scanning module 231. The module is vertically mounted on the side of the rotary table via a slide 232 driven by a linear motor. The movement direction of the slide 232 is parallel to the weld extension direction. The line laser scanning module 231 performs multi-area scanning on the flatness of the manifold plate and the position of the five-hole assembly. The manifold plate area is scanned three times by a first line laser sensor, and the five-hole assembly area is scanned twice by a second line laser sensor to ensure that the dimensional tolerance repeatability reaches 0.006mm.

[0045] Furthermore, such as Figures 1 to 9 As shown, the inspection station also includes a weld misalignment inspection station 24. The dedicated inspection mechanism for the weld misalignment inspection station 24 includes a lifting and rotating mechanism 241, whose lifting servo electric cylinder is fixed below the rotary table 1, and a hollow rotating platform is installed on top of the electric cylinder. The vision inspection component is connected to the end of the multi-axis robot 243 at the weld misalignment inspection station via an L-shaped bracket, with its lens facing the bearing surface of the lifting and rotating mechanism. After the lifting servo electric cylinder lifts the flow channel plate, the rotating platform drives it to rotate to a preset angle, cooperating with the multi-axis robot at the weld misalignment inspection station to perform supplementary inspections of the bottom weld and installation misalignments. The electric cylinder lifts the flow channel plate to a set height, the rotating platform drives it to rotate to a preset angle, and the robot performs supplementary inspections of the bottom weld and installation misalignments (such as five-hole misalignment and jumper joint misalignment), completing a total of 13 image acquisitions.

[0046] Furthermore, such as Figures 1 to 9 As shown, the inspection station 2 also includes a loading and unloading station, which is equipped with a lifting cylinder. The piston rod of the lifting cylinder penetrates vertically through the rotary table surface to lift the flow channel plate to the picking and placing height. A material rack is provided on the outside of the rotary table 1, and its positioning pin matches the mounting hole at the bottom of the flow channel plate. The lifting cylinder is isolated from the robot or manual operation area by a safety light curtain. The lifting cylinder is linked with a double-button start device.

[0047] A material rack is installed on the outside of the rotary table, with positioning pins matching the mounting holes of the flow channel plate. A lifting cylinder vertically penetrates the rotary table surface, lifting the flow channel plate to the loading / unloading height. The workstation and operating area are separated by a safety light curtain. A dual-button start device is linked to the lifting cylinder to ensure that loading and unloading operations are completed within 25 seconds.

[0048] Furthermore, such as Figures 1 to 9 As shown, it also includes a control cabinet 3, in which the central control system is integrated. The control cabinet 3 is divided into strong and weak current zones, and the strong current lines and weak current signal lines are separated by partitions.

[0049] Furthermore, such as Figures 1 to 9As shown, the safety protection system also includes a multi-axis manipulator drive motor connected to an emergency stop button via a hardware interlock relay, and the transmitter and receiver of the safety light curtain are respectively installed on the guardrails on both sides of the rotary table to form a closed detection area.

[0050] Furthermore, such as Figures 1 to 9 As shown, the marble base is rigidly connected to the rotary table by bolts, and its surface is provided with shock-absorbing pads and grounding terminals are provided around it.

[0051] The foregoing has illustrated and described the basic features, principles, and advantages of this utility model. It should be noted that this utility model is not limited to the above embodiments, but only to some embodiments. Any improvements and additions made without departing from the spirit and scope of this utility model are considered to be within the protection scope of this utility model.

Claims

1. A flow channel plate defect detection device, characterized in that, include: A rotary table (1) is mounted on a marble base; Inspection stations (2) are distributed around the rotary table (1). Each inspection station (2) includes a multi-axis robot, a vision inspection component and a station-specific inspection mechanism. The central control system includes a human-machine interface, PLC, and controller; The safety protection system includes a safety light curtain, a leakage current protection switch, and an emergency stop button. The safety light curtain is installed in the area of ​​the pressing and moving parts.

2. The flow channel plate defect detection device according to claim 1, characterized in that, The inspection station (2) includes a hole surface defect inspection station (21), the structure of which includes: A multi-axis robot (211) for hole surface defect detection station is fixed on a support frame on the outside of the rotary table (1). A vision inspection component (212) for hole surface defect detection station is installed at the end of the robot via an adjustable bracket. The special inspection mechanism for hole surface defect detection station includes two sets of cameras. One set is driven by the robot to move along a preset path along the end face of the hole and the water jet gap. The other set is fixed on the top of the support frame and faces the center of the rotary table (1). The shooting angle of the camera covers the detection area of ​​welding slag, scratches and foreign objects on the hole surface and is connected to the central control system via a bus.

3. The flow channel plate defect detection device according to claim 1, characterized in that, The inspection station (2) also includes a hole internal defect inspection station (22). The hole internal defect inspection station (22) has a dedicated inspection mechanism including an endoscope lens module (222), which is connected to the end of the multi-axis robot (221) of the hole internal defect inspection station through a universal adjustment arm. The endoscope lens module (222) has a built-in focusing mechanism. The multi-axis robot (221) of the hole internal defect inspection station drives the endoscope lens module (222) to be inserted into the hole. The focusing mechanism performs multi-position scanning of the thread crawling material and foreign objects inside the hole. The scanning data is transmitted to the central control system in real time.

4. The flow channel plate defect detection device according to claim 1, characterized in that, The inspection station (2) also includes a weld size inspection station (23). The weld size inspection station is equipped with a multi-axis robotic arm (233). The special inspection mechanism of the weld size inspection station (23) includes a line laser scanning module (231). The module is vertically installed on the side of the rotary table (1) by a slide (232) driven by a linear motor. The movement direction of the slide (232) is parallel to the extension direction of the weld. The line laser scanning module (231) performs multi-area scanning on the flatness of the manifold plate and the position of the five-hole assembly. The manifold plate area is scanned three times by the first line laser sensor, and the five-hole assembly area is scanned twice by the second line laser sensor.

5. The flow channel plate defect detection device according to claim 1, characterized in that, The inspection station (2) also includes a weld misalignment inspection station (24). The special inspection mechanism of the weld misalignment inspection station (24) includes a lifting and rotating mechanism (241), whose lifting servo electric cylinder is fixed below the rotary table (1), and the hollow rotating platform is installed on the top of the electric cylinder. The visual inspection component (242) of the weld misalignment inspection station is connected to the end of the multi-axis robot (243) of the weld misalignment inspection station through an L-shaped bracket, and its lens faces the bearing surface of the lifting and rotating mechanism (241). After the lifting servo electric cylinder lifts the flow channel plate, the rotating platform drives it to rotate to a preset angle, and cooperates with the multi-axis robot (243) of the weld misalignment inspection station to perform supplementary inspection on the bottom weld and installation misalignment.

6. The flow channel plate defect detection device according to claim 1, characterized in that, The inspection station (2) also includes a loading and unloading station, which is equipped with a lifting cylinder. The piston rod of the lifting cylinder penetrates vertically through the table surface of the rotary table (1) to lift the flow channel plate to the picking and placing height. A material rack is provided on the outside of the rotary table (1), and its positioning pin matches the mounting hole at the bottom of the flow channel plate. The lifting cylinder is isolated from the robot or manual operation area by a safety light curtain. The lifting cylinder is linked with a double-button start device.

7. The flow channel plate defect detection device according to claim 1, characterized in that, It also includes a control cabinet (3), in which the central control system is integrated. The control cabinet (3) is divided into strong and weak current zones, and the strong current lines and weak current signal lines are separated by partitions.

8. The flow channel plate defect detection device according to claim 1, characterized in that, The safety protection system also includes a multi-axis manipulator drive motor and an emergency stop button connected by a hardware interlock relay, and the transmitter and receiver of the safety light curtain are respectively installed on the guardrails on both sides of the rotary table (1) to form a closed detection area.

9. The flow channel plate defect detection device according to claim 1, characterized in that, The marble base is rigidly connected to the rotary table (1) by bolts, and its pad surface is provided with shock-absorbing pads and grounding terminals are provided around it.

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