A narrow gap weld multi-modal joint detection device

Abstract

The utility model discloses a narrow gap weld multimode combined detection device in the technical field of weld detection, which comprises: a multimode detection assembly, the multimode detection assembly comprises an installation plate and a visual camera, an eddy current probe and an ultrasonic probe arranged on the installation plate in sequence along a weld direction; a mechanical execution assembly for driving the multimode detection assembly to move along the weld direction; a marking assembly arranged on the multimode detection assembly for applying corresponding shape marks to the defect positions recognized by the visual camera, the eddy current probe and the ultrasonic probe respectively; wherein the marking assembly comprises a moving mold frame, a translation mechanism for driving the moving mold frame to move along the weld direction, and a spraying unit and a positioning unit arranged on the moving mold frame. The device adopts a differentiated marking assembly, and through one-to-one correspondence design of different shape marking holes and detection modes, the detection personnel can directly judge the defect detection source through the marking shape, and the subsequent repair and review efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of weld inspection technology, specifically to a multimodal joint inspection device for narrow gap welds. Background Technology

[0002] Because narrow-gap welds have narrow groove widths and large depths, traditional single-method inspection (such as ultrasonic testing) cannot fully cover surface, near-surface, and internal defects. Therefore, multimodal (visual, eddy current, ultrasonic, etc.) combined inspection technologies are gradually becoming mainstream. During the inspection process, the defect locations need to be marked.

[0003] However, the existing multimodal joint detection devices use outdated defect marking methods that cannot trace the detection mode. They typically use uniformly shaped markers (such as × or O) to mark all defects, making it impossible to distinguish whether the defects were identified by visual, eddy current, or ultrasonic detection. Repair personnel cannot intuitively determine the type and depth of defects and must retrieve the detection data or conduct a re-inspection, which seriously affects repair efficiency and quality traceability. At the same time, the marking process relies on manual or simple automation, resulting in low accuracy and easy omissions.

[0004] To address these issues, a multimodal joint inspection device for narrow gap welds is provided. Utility Model Content

[0005] The purpose of this invention is to provide a multimodal joint inspection device for narrow gap welds, which solves the problems of existing multimodal joint inspection devices where defect marking cannot be traced back to its source and the marking method is singular.

[0006] This utility model achieves the above objectives through the following technical solutions: A multi-modal joint inspection device for narrow gap welds includes: A multimodal detection assembly, comprising a mounting plate and a vision camera, an eddy current probe, and an ultrasonic probe arranged sequentially along the weld direction on the mounting plate; A mechanical actuator is used to drive the multimodal detection component to move along the weld direction; A marking component, disposed on the multimodal detection component, is used to apply corresponding shape markings to the defect locations identified by the visual camera, eddy current probe, and ultrasonic probe, respectively. The marking assembly includes a movable mold frame, a translation mechanism for driving the movable mold frame to move along the weld direction, and a spraying unit and a positioning unit disposed on the movable mold frame. The bottom of the movable mold frame is provided with a plurality of marking holes of different shapes, and each marking hole corresponds to a vision camera, an eddy current probe and an ultrasonic probe respectively. The positioning unit is used to drive the spraying unit to move above the corresponding marking hole to perform spraying marking.

[0007] As a further optimization of this utility model, the end of the mechanical actuation component is provided with a support plate, and a laser projector is provided on the support plate.

[0008] As a further optimization of this utility model, a partition is provided between the visual camera and the eddy current probe, as well as between the eddy current probe and the ultrasonic probe.

[0009] As a further optimization of this utility model, the translation mechanism is fixedly installed at the bottom of the mounting plate; the direction of the line connecting each of the marking holes is perpendicular to the weld direction.

[0010] As a further optimization of this utility model, the spraying unit includes a liquid storage cylinder, a micro pump fixedly disposed at the bottom of the liquid storage cylinder, and a spray gun fixedly disposed at the output end of the micro pump; the liquid storage cylinder passes through the mounting plate, and the mounting plate has a main strip-shaped through hole for guiding the liquid storage cylinder to move along the weld direction, and the side of the main strip-shaped through hole is connected to multiple branch strip-shaped through holes, the lengths of the multiple branch strip-shaped through holes being matched with the lateral positions of the marking holes corresponding to the vision camera, eddy current probe and ultrasonic probe, respectively.

[0011] As a further optimization of this utility model, the positioning unit includes fixed seats fixed at both ends of the top of the movable mold frame, a fixed rod fixed between the two fixed seats, and a movable seat slidably disposed on the fixed rod; a spring is sleeved on the fixed rod between the movable seat and one of the fixed seats, and the liquid storage cylinder is fixedly disposed on the movable seat.

[0012] As a further optimization of this utility model, the positioning unit also includes a magnetic block fixedly disposed on one side of the liquid storage cylinder; an electromagnet matching the magnetic block is fixedly disposed on the mounting plate at the end of each of the support-shaped through holes.

[0013] As a further optimization of this utility model, a second connector is fixedly provided on one side of the magnetic block, and a first connector is fixedly provided on one side of the electromagnet; the first connector and the second connector abut against each other to connect the micro pump circuit for automatic spraying.

[0014] The beneficial effects of this utility model are as follows: 1. This utility model adopts a differentiated marking component. Through the design of a one-to-one correspondence between the marking holes of different shapes and the detection modes, the inspection personnel can directly judge the source of defect detection by the marking shape, quickly distinguish the data of each detection mode, improve the efficiency of subsequent rework and review, and achieve visual differentiation for multiple defects in the same location to avoid confusion.

[0015] 2. This utility model, through the cooperation of electromagnet and magnetic block, combined with the guiding effect of main strip through hole and multiple branch strip through holes, enables the spraying unit to be accurately and efficiently positioned above the marking hole corresponding to each detection mode. It does not require complicated control methods, effectively reduces system cost and failure rate, has high operational reliability, and avoids mis-spraying and missed spraying. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 2 This is a three-dimensional schematic diagram of the overall structure of this utility model; Figure 3 This is a schematic diagram of the top surface structure of the multimodal detection component of this utility model; Figure 4 This is a schematic diagram of the bottom structure of the multimodal detection component of this utility model; Figure 5 This is a schematic diagram of the marking component structure of this utility model.

[0017] In the picture: 1. Multimodal detection assembly; 101. Mounting plate; 102. Vision camera; 103. Eddy current probe; 104. Ultrasonic probe; 105. Main strip through hole; 106. Support strip through hole; 107. Electromagnet; 108. First connecting piece; 109. Partition plate; 2. Mechanical actuation assembly; 201. Support plate; 202. Laser projector; 3. Marking assembly; 301. Moving mold frame; 301a. Marking hole; 302. Translation mechanism; 303. Spraying unit; 303a. Liquid storage tank; 303b. Micro pump; 303c. Spray gun; 304. Positioning unit; 304a. Fixed base; 304b. Fixed rod; 304c. Movable base; 304d. Spring; 304e. Magnetic block; 304f. Second connecting piece. Detailed Implementation

[0018] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0019] Example 1 To address the issues of untraceable defect marking and limited marking methods in existing multimodal joint detection devices, please refer to... Figures 1-4 This utility model provides a multi-modal joint inspection device for narrow gap welds, comprising: The multimodal detection assembly 1 includes a mounting plate 101 and a vision camera 102, an eddy current probe 103, and an ultrasonic probe 104 arranged sequentially along the weld direction on the mounting plate 101. A partition 109 is provided between the vision camera 102 and the eddy current probe 103, and between the eddy current probe 103 and the ultrasonic probe 104. The partition 109 is fixedly mounted on the mounting plate 101 to block coupling agent splash, electromagnetic interference, etc., and reduce mutual interference between the detection modes. A control component (not shown) is also integrated on the mounting plate 101. Mechanical actuator 2 is used to drive multimodal detection component 1 to move along the weld direction. The end of mechanical actuator 2 is provided with support plate 201, and laser projector 202 is provided on support plate 201. Laser projector 202 is used to project reference beam to ensure that multimodal detection component 1 runs accurately along the weld direction. The marking component 3 is disposed on the multimodal detection component 1 and is used to apply corresponding shape markings to the defect locations identified by the vision camera 102, the eddy current probe 103 and the ultrasonic probe 104 respectively.

[0020] The marking component 3 includes a movable mold frame 301, a translation mechanism 302 for driving the movable mold frame 301 to move along the weld direction, and a spraying unit 303 and a positioning unit 304 disposed on the movable mold frame 301. The translation mechanism 302 is fixedly disposed on the bottom of the mounting plate 101. The translation mechanism 302 can adopt a screw and nut transmission structure or other equivalent linear drive form. The bottom of the movable mold frame 301 is provided with a plurality of marking holes 301a of different shapes. Each marking hole 301a corresponds to the vision camera 102, the eddy current probe 103 and the ultrasonic probe 104 respectively. The line direction connecting each marking hole 301a is perpendicular to the weld direction to realize the lateral selection of the marking corresponding to different detection modes. The positioning unit 304 is used to drive the spraying unit 303 to move above the corresponding marking hole 301a to carry out spraying marking.

[0021] The spraying unit 303 includes a liquid storage cylinder 303a, a micro pump 303b fixedly disposed at the bottom of the liquid storage cylinder 303a, and a spray gun 303c fixedly disposed at the output end of the micro pump 303b. The liquid storage cylinder 303a passes through the mounting plate 101 and stores easily removable marking paint, such as washable ink. The mounting plate 101 has a main strip-shaped through hole 105 for guiding the liquid storage cylinder 303a to move along the weld direction. The side of the main strip-shaped through hole 105 is connected to multiple branch strip-shaped through holes 106. The lengths of the multiple branch strip-shaped through holes 106 are respectively matched with the lateral positions of the marking holes 301a corresponding to the vision camera 102, the eddy current probe 103, and the ultrasonic probe 104.

[0022] During device testing, the mechanical actuator 2 drives the multimodal detection component 1 to move along the straight weld seam. The vision camera 102 first acquires images of the weld seam surface and identifies surface defects (such as undercut and cracks). Then, the eddy current probe 103 detects near-surface defects (such as microcracks and inclusions). Finally, the ultrasonic probe 104 detects internal defects (such as incomplete penetration and porosity). When any detection mode detects a defect signal exceeding a preset threshold, the control system immediately sends a stop command to the mechanical actuator 2, causing the multimodal detection component 1 to be precisely located near the defect location and pause operation. Subsequently, the control system generates a corresponding [data / information] based on the source of the defect detection. Upon receiving the marking instruction, the translation mechanism 302 drives the moving mold 301 to move to the area corresponding to the defect location, such as the vision camera 102. At this time, the positioning unit 304 drives the spraying unit 303 to move above the marking hole 301a corresponding to the vision camera 102. The spraying unit 303 sprays a specific shape mark corresponding to the detection mode onto the workpiece surface through the marking hole 301a. For example, the vision camera 102 corresponds to a square mark, the eddy current probe 103 corresponds to a triangular mark, and the ultrasonic probe 104 corresponds to a circular mark. After the marking is completed, the marking component 3 is reset, and the mechanical execution component 2 resumes movement for subsequent detection.

[0023] Example 2 Based on Embodiment 1, in order to ensure that the spraying unit 303 can be accurately and efficiently positioned above the marking hole 301a corresponding to each detection mode, such as... Figure 3 , Figure 5 As shown, the positioning unit 304 includes fixed seats 304a fixedly disposed at both ends of the top of the movable mold frame 301, a fixed rod 304b fixedly disposed between the two fixed seats 304a, and a movable seat 304c slidably disposed on the fixed rod 304b; a spring 304d is sleeved on the fixed rod 304b between the movable seat 304c and one of the fixed seats 304a to provide a reset elastic force, and the liquid storage cylinder 303a is fixedly disposed on the movable seat 304c.

[0024] The positioning unit 304 also includes a magnetic block 304e fixedly disposed on one side of the liquid storage cylinder 303a; an electromagnet 107 matching the magnetic block 304e is fixedly disposed on the mounting plate 101 at the end of each strip-shaped through hole 106. The electromagnet 107 and the magnetic block 304e are magnetically attracted to each other, and are used to drive the movable seat 304c to move laterally along the fixed rod 304b to directly above the target marking hole 301a and lock the position.

[0025] To improve the spraying response speed and reliability and achieve automatic triggering of spraying action upon arrival, a second connector 304f is fixedly provided on one side of the magnetic block 304e, and a first connector 108 is fixedly provided on one side of the electromagnet 107; the first connector 108 and the second connector 304f abut against each other to connect the circuit of the micro pump 303b for automatic spraying.

[0026] When the control system determines that a certain mode of marking needs to be executed (such as ultrasonic probe 104 identifying defects), it sends an energizing signal to the electromagnet 107 at the corresponding position. The electromagnet 107 generates a magnetic field, and the translation mechanism 302 drives the moving mold frame 301 to move, thereby driving the liquid storage cylinder 303a to move along the main strip-shaped through hole 105. Since the electromagnet 107 generates an attractive force on the magnetic block 304e, when the liquid storage cylinder 303a moves to the corresponding support strip-shaped through hole 106, it immediately enters the support strip-shaped through hole 106. At this time, the liquid storage cylinder 303a drives the movable seat 304c to overcome the elastic force of the spring 304d and slide along the fixed rod 304b until it reaches the end of the support strip-shaped through hole 106. The magnetic block 304e is attracted to the electromagnet 107, and the spray gun 30... 3c is precisely aligned with the top of the target marking hole 301a to complete the positioning; at the instant that the electromagnet 107 and the magnetic block 304e are fully attracted, the first connector 108 and the second connector 304f fixed on it come into contact with each other to form an electrical connection, and connect the power supply circuit of the micro pump 303b. The micro pump 303b starts immediately and delivers the marking paint in the liquid storage cylinder 303a to the spray gun 303c, forming clear geometric marks on the surface of the workpiece through the marking hole 301a; after the spraying is completed, the control system disconnects the power supply of the electromagnet 107, the magnetic force disappears, and under the reset action of the spring 304d, the movable seat 304c drives the liquid storage cylinder 303a to move into the main strip through hole 105, and then resets to the initial position through the translation mechanism 302.

[0027] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A multi-modal joint inspection device for narrow gap welds, characterized in that, include: A multimodal detection assembly (1) includes a mounting plate (101) and a vision camera (102), an eddy current probe (103) and an ultrasonic probe (104) arranged sequentially along the weld direction on the mounting plate (101). Mechanical actuation component (2) is used to drive the multimodal detection component (1) to move along the weld direction; A marking component (3) is disposed on the multimodal detection component (1) and is used to apply corresponding shape markings to the defect locations identified by the vision camera (102), the eddy current probe (103) and the ultrasonic probe (104). The marking component (3) includes a movable mold frame (301), a translation mechanism (302) for driving the movable mold frame (301) to move along the weld direction, and a spraying unit (303) and a positioning unit (304) provided on the movable mold frame (301). The bottom of the movable mold frame (301) is provided with a plurality of marking holes (301a) of different shapes. Each marking hole (301a) corresponds to a vision camera (102), an eddy current probe (103) and an ultrasonic probe (104) respectively. The positioning unit (304) is used to drive the spraying unit (303) to move above the corresponding marking hole (301a) to carry out spraying marking.

2. The multi-modal joint inspection device for narrow gap welds according to claim 1, characterized in that, The mechanical actuator (2) has a support plate (201) at its end, and a laser projector (202) is provided on the support plate (201).

3. The multi-modal joint inspection device for narrow gap welds according to claim 1, characterized in that, A partition (109) is provided between the visual camera (102) and the eddy current probe (103) and between the eddy current probe (103) and the ultrasonic probe (104).

4. The multi-modal joint inspection device for narrow gap welds according to claim 1, characterized in that, The translation mechanism (302) is fixedly mounted on the bottom of the mounting plate (101); The direction of the line connecting each of the marked holes (301a) is perpendicular to the weld direction.

5. The multi-modal joint inspection device for narrow gap welds according to claim 1, characterized in that, The spraying unit (303) includes a liquid storage tank (303a), a micro pump (303b) fixedly disposed at the bottom of the liquid storage tank (303a), and a spray gun (303c) fixedly disposed at the output end of the micro pump (303b). The liquid storage cylinder (303a) penetrates the mounting plate (101). The mounting plate (101) has a main strip-shaped through hole (105) for guiding the liquid storage cylinder (303a) to move along the weld direction. The side of the main strip-shaped through hole (105) is connected to multiple branch strip-shaped through holes (106). The lengths of the multiple branch strip-shaped through holes (106) are respectively matched with the lateral positions of the marking holes (301a) corresponding to the vision camera (102), eddy current probe (103) and ultrasonic probe (104).

6. The multi-modal joint inspection device for narrow gap welds according to claim 5, characterized in that, The positioning unit (304) includes a fixed seat (304a) fixed at both ends of the top of the movable mold frame (301), a fixed rod (304b) fixed between the two fixed seats (304a), and a movable seat (304c) slidably disposed on the fixed rod (304b). A spring (304d) is fitted on the fixing rod (304b) between the movable seat (304c) and one of the fixed seats (304a), and the liquid storage cylinder (303a) is fixedly mounted on the movable seat (304c).

7. The multi-modal joint inspection device for narrow gap welds according to claim 6, characterized in that, The positioning unit (304) also includes a magnetic block (304e) fixedly disposed on one side of the liquid storage cylinder (303a). Each of the support-shaped through holes (106) has an electromagnet (107) fixed on the mounting plate (101) at the end of the mounting plate (101) that matches the magnetic block (304e).

8. The multi-modal joint inspection device for narrow gap welds according to claim 7, characterized in that, A second connector (304f) is fixedly provided on one side of the magnetic block (304e), and a first connector (108) is fixedly provided on one side of the electromagnet (107). The first connector (108) abuts against the second connector (304f) to activate the circuit of the micro pump (303b) for automatic spraying.

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