An internal inspection device for welded joints of pipe components in pressure vessels

Abstract

This utility model provides an internal inspection device for welded joints of pipe components in pressure vessels, relating to the field of pipe component inspection technology. It includes a frame, with a Keyence vision inspection and automatic detection assembly mounted on the top of the frame. An endoscope display screen is mounted on the outer wall of the Keyence vision inspection and automatic detection assembly, and a probe positioning fixture is mounted on the output end of the assembly. The automatic inspection equipment for pipe components uses the probe positioning fixture to internally photograph the cross-section of the welded joint, and a rotating disk rotates the main body of the pipe component to achieve circumferential inspection of the welded joint. The Keyence vision inspection and automatic detection assembly then automatically photographs the inspection images, and the product's conformity is determined based on the inspection criteria set on the assembly. This ensures timely detection of defective products, guarantees finished product quality, and the probe positioning fixture performs the function of positioning the cross-section of the welded surface of the pipe workpiece.

Description

Technical Field

[0001] This utility model relates to the field of pipe parts inspection technology, and in particular to an internal inspection device for welded joints of pipe parts used in pressure vessels. Background Technology

[0002] To ensure product quality, reduce defective products, and improve overall quality, the company is increasingly eager for automated processing and inspection. Manual labor is inefficient, and there are many unstable factors affecting product control and quality assurance. Therefore, the industrial development trend of replacing manual labor with fully automated equipment is irreversible. Current research shows that internal inspection of pipe parts is still in the manual inspection stage. Enterprises urgently need to improve production efficiency and product quality, and eliminate defective products. This requires automated inspection of welded joints in pipe parts, timely feedback of inspection data to guide processing and manufacturing, and improvement of the first-pass yield.

[0003] Currently, one existing technology for internal inspection devices at welded joints of pipe parts in pressure vessels typically involves manual inspection. However, manual inspection is susceptible to defects due to variations in the operator's method and level of diligence, making it difficult to guarantee product quality. Furthermore, manual inspection delays production time, resulting in lower capacity, increased company costs, and significant limitations, making it impractical. Utility Model Content

[0004] The purpose of this utility model is to solve the problems of existing technologies, which usually involve manual inspection. However, manual inspection is easily affected by the operator's operation method and diligence, resulting in undetected defects, which cannot guarantee product quality. Furthermore, manual inspection delays production time, leading to low production capacity, increased company costs, and significant limitations and poor practicality. Therefore, this utility model proposes an internal inspection device for welded joints of pipe parts in pressure vessels.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an internal inspection device for welded joints of pipe parts in pressure vessels, comprising a frame, a Keyence vision inspection and automatic detection assembly mounted on the top of the frame, an endoscope display screen mounted on the outer wall of the Keyence vision inspection and automatic detection assembly, a probe positioning fixture mounted on the output end of the Keyence vision inspection and automatic detection assembly, a servo motor mounted inside the frame, a rotating disk mounted on the output end of the servo motor, a limit sensor mounted on the top of the rotating disk, and a pipe part body mounted inside the limit sensor.

[0006] Preferably, a bracket is fixed to the top of the frame, and an eccentric shaft for the probe front end is mounted on the bracket.

[0007] Preferably, a fixing plate is fixed to the top of the frame, and one end of the Keyence vision inspection and automatic detection component is fixed to the fixing plate.

[0008] Preferably, the frame is fixed with support legs at all four corners of its bottom end.

[0009] Preferably, the bottom of the frame is equipped with universal self-locking wheels on one side of each of the four legs.

[0010] Preferably, a storage bin is installed at the top of the rack.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] In this invention, the automatic inspection equipment for tubular parts uses a probe positioning fixture to internally photograph the cross-section of the weld, and a rotating disk to rotate the main body of the tubular part to achieve circumferential inspection of the weld. Then, a Keyence vision inspection system combined with an automatic detection component automatically photographs the inspection images, and the product's conformity is determined based on the inspection criteria set on the Keyence vision inspection system combined with the automatic detection component. This ensures timely detection of defective products, guarantees finished product quality, and the probe positioning fixture completes the function of positioning the cross-section of the weld surface of the tubular workpiece. This mechanism primarily fulfills the dimensional accuracy function during probe and weld joint inspection, eliminating the need for manual intervention to ensure precision and reliability. A servo motor rotates a rotating disk, which in turn rotates the tubular part held at the top of the disk. Limit sensors control the automatic stop after one revolution, completing the circumferential inspection of the product. This proposed solution meets the urgent need for automated inspection of such parts. Furthermore, our company has repeatedly optimized and debugged the equipment to ensure accurate inspection. The entire inspection system can achieve automated inspection, offering greater flexibility and automation. It fills the current market gap for automated inspection solutions for such parts, helping companies upgrade their automated production processes. It can be widely applied in automated inspection devices for various types of tubular parts and has broad market prospects. Attached Figure Description

[0013] Figure 1 This utility model provides a right-side view of an internal inspection device for welded joints of tubular parts in pressure vessels.

[0014] Figure 2 A front view of an internal inspection device for welded joints of tubular parts in pressure vessels is provided for this utility model.

[0015] Figure 3 This utility model provides a left-side view of an internal inspection device for welded joints of tubular parts in pressure vessels.

[0016] Figure 4The present invention provides a rear view of an internal inspection device for welded joints of tubular parts in pressure vessels.

[0017] Figure 5 This utility model presents a perspective view of an internal inspection device for welded joints of pipe parts in pressure vessels.

[0018] Legend: 1. Frame; 2. Mounting plate; 3. Keyence vision inspection and automatic detection assembly; 4. Servo motor; 5. Rotary disk; 6. Limit sensor; 7. Tube parts body; 8. Support; 9. Probe positioning fixture; 10. Probe front eccentric shaft; 11. Support leg; 12. Universal self-locking wheel; 13. Storage bucket; 14. Endoscope display screen. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0021] Example 1, as Figure 1-5 As shown, this utility model provides an internal inspection device for welded joints of pipe parts in pressure vessels, including a frame 1. A Keyence vision inspection and automatic detection assembly 3 is installed at the top of the frame 1. An endoscope display screen 14 is installed on the outer wall of the Keyence vision inspection and automatic detection assembly 3. A probe positioning fixture 9 is installed at the output end of the Keyence vision inspection and automatic detection assembly 3. A servo motor 4 is installed inside the frame 1. A rotating disk 5 is installed at the output end of the servo motor 4. A limit sensor 6 is installed at the top of the rotating disk 5. The main body 7 of the pipe part is installed inside the limit sensor 6.

[0022] The overall effect of Embodiment 1 is that the automatic inspection equipment for tubular parts uses a probe positioning fixture 9 to internally photograph the cross-section of the weld, and a rotating disk 5 to rotate the main body 7 of the tubular part to achieve circumferential inspection of the weld. Then, Keyence vision inspection combined with the automatic detection component 3 automatically photographs the inspection image, and the product's qualification is determined based on the inspection criteria set on the Keyence vision inspection combined with the automatic detection component 3. This ensures timely detection of defective products, guarantees the final product quality, and the inspection probe positioning fixture 9 completes the function of positioning the cross-section of the weld surface of the tubular workpiece. This mechanism primarily fulfills the dimensional accuracy function during probe and weld inspection, ensuring precision and reliability without manual intervention. A servo motor 4 rotates, driving a rotating disk 5, which in turn rotates the tubular part body 7 held at the top of the disk. A limit sensor 6 controls the automatic stop after one revolution, completing the circumferential inspection of the product. This solution addresses the urgent need for automated inspection of such parts. Furthermore, our repeated optimization and debugging have ensured accurate inspection, enabling fully automated inspection with greater flexibility and automation. It fills a market gap for automated inspection solutions for such parts, helping companies upgrade their automated production processes. It can be widely applied in automated inspection devices for various types of tubular parts, possessing broad market prospects.

[0023] Example 2, as Figure 1-5 As shown, a bracket 8 is fixed at the top of the frame 1, and an eccentric shaft 10 for the front end of the probe is installed on the bracket 8. A fixing plate 2 is fixed at the top of the frame 1. One end of the Keyence Vision Inspection and Automatic Detection Component 3 is fixed to the fixing plate 2. Support legs 11 are fixed at the four corners of the bottom of the frame 1. Universal self-locking wheels 12 are installed on one side of the four support legs 11 at the bottom of the frame 1. A storage bucket 13 is installed at the top of the frame 1.

[0024] The overall effect of Embodiment 2 is that, through the setting of the storage bucket 13, the probe positioning fixture 9 can be placed inside the storage bucket 13 when not in use. The universal self-locking wheels 12 allow the device to be moved. Considering the accuracy of measurement, a detection probe positioning fixture 9 was designed specifically for the characteristics of tubular parts. This fixture can meet the requirements for fixed-point and fixed-surface detection of the tubular part body 7. By comparing and analyzing the circumferential detection data, the final detection data of the workpiece is obtained, thus improving the accuracy of the measurement data and ensuring the quality requirements of the product. Considering the comprehensiveness and accuracy of the circumferential detection of the tubular part body 7, we designed a servo motor 4 and a rotating disk 5 to drive the rotation of the tubular part body 7. In the structural design, the endoscope display screen 14 is integrated with the Keyence vision inspection automatic detection component 3, working in conjunction with the servo motor 4 and the rotating disk 5 for detection. The product's qualification is determined based on the transmitted image. We link the inspection judgment result with a marker pen; when the inspection is qualified, the marker pen automatically pops out for the employee to mark the qualified point; otherwise, the marker pen cannot be removed.

[0025] Working Principle: In operation, this automatic inspection device for tubular parts uses a probe positioning fixture 9 to internally photograph the cross-section of the weld joint. A rotating disk 5 rotates the main body 7 of the tubular part to perform a circumferential inspection of the weld joint. Then, Keyence vision inspection combined with the automatic detection component 3 automatically photographs the inspection image. The product's conformity is determined based on the inspection criteria set on the Keyence vision inspection combined with the automatic detection component 3. This ensures timely detection of defective products, guaranteeing final product quality. The probe positioning fixture 9 performs the function of positioning the cross-section of the weld surface of the tubular workpiece. This mechanism primarily fulfills the dimensional accuracy function during probe and weld inspection, ensuring precision and reliability without manual intervention. A servo motor 4 rotates, driving a rotating disk 5, which in turn rotates the tubular part body 7 held at the top of the disk. A limit sensor 6 controls the automatic stop after one revolution, completing the circumferential inspection of the product. This solution addresses the urgent need for automated inspection of such parts. Furthermore, our repeated optimization and debugging have ensured accurate inspection, enabling fully automated inspection with greater flexibility and automation. It fills a market gap for automated inspection solutions for such parts, helping companies upgrade their automated production processes. It can be widely applied in automated inspection devices for various types of tubular parts, possessing broad market prospects.

[0026] The wiring diagrams for the Keyence visual inspection system with automatic detection component 3, servo motor 4, limit sensor 6, probe positioning fixture 9, probe front eccentric shaft 10, and endoscope display screen 14 in this utility model are common knowledge in the field. Their working principles are known technologies, and the appropriate model is selected according to actual use. Therefore, the control methods and wiring layouts of the Keyence visual inspection system with automatic detection component 3, servo motor 4, limit sensor 6, probe positioning fixture 9, probe front eccentric shaft 10, and endoscope display screen 14 will not be explained in detail.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An internal inspection device for welded joints of pipe parts in pressure vessels, comprising a frame (1), characterized in that: The top of the frame (1) is equipped with a Keyence vision inspection and automatic detection assembly (3). An endoscope display screen (14) is installed on the outer wall of the Keyence vision inspection and automatic detection assembly (3). A probe positioning fixture (9) is installed at the output end of the Keyence vision inspection and automatic detection assembly (3). A servo motor (4) is installed inside the frame (1). A rotary disk (5) is installed at the output end of the servo motor (4). A limit sensor (6) is installed at the top of the rotary disk (5). A tubular part body (7) is installed inside the limit sensor (6).

2. The internal inspection device for welded joints of pipe parts in pressure vessels according to claim 1, characterized in that: The top of the frame (1) is fixed with a bracket (8), and the probe front end eccentric shaft (10) is installed on the bracket (8).

3. The internal inspection device for welded joints of pipe parts in pressure vessels according to claim 1, characterized in that: The top of the frame (1) is fixed with a fixing plate (2), and one end of the Keyence visual inspection and automatic detection assembly (3) is fixed to the fixing plate (2).

4. The internal inspection device for welded joints of pipe parts in pressure vessels according to claim 1, characterized in that: The frame (1) is fixed with legs (11) at the four corners of its bottom end.

5. The internal inspection device for welded joints of pipe parts in pressure vessels according to claim 1, characterized in that: The bottom of the frame (1) is equipped with universal self-locking wheels (12) on one side of the four legs (11).

6. The internal inspection device for welded joints of pipe parts in pressure vessels according to claim 1, characterized in that: A storage bin (13) is installed at the top of the rack (1).

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