Pipe weld visual inspection positioning structure

Abstract

The utility model discloses a pipe weld visual inspection positioning structure, including the bottom plate and the fixed frame, the fixed frame upper end fixedly connected with the glimmer detector, the bottom plate upper end both sides all are established with the first recess, the first recess is rotatably connected with the bidirectional screw rod, the two sides of bidirectional screw rod all are screw -threaded connection with the lower clamping frame of mutual far away, the lower clamping frame upside is established with the draw -in groove, the draw -in groove is fixedly connected with the slide bar, the slide bar is sleeved with the upper clamping frame, the upper clamping frame and the lower clamping frame relative one side all are established with V type groove, the slide bar upside is screw -threaded connection with the screw sleeve, and the screw sleeve is opposite with the upper clamping frame upper end and is in abutment, the lower clamping frame and the upper clamping frame relative one side all are established with V type recess, the utility model discloses through with the pipe of having the weld between two movable upper clamping frame and lower clamping frame, then the weld position is adjusted to the fixed frame, then through the glimmer detector and monitors, and the strong light source provides the light source to be examined in the pipeline, when the fixed frame appears the glimmer signal, then can prove that the pipe weld has the problem.

Description

Technical Field

[0001] This utility model relates to the field of mold processing technology, specifically to a visual inspection and positioning structure for pipe weld seams. Background Technology

[0002] Pipe fittings are a general term for cylindrical structures. They are usually made of metal or non-metal materials. Some metal pipe fittings require welding two pipe fittings together during processing to form a weld. In order to ensure the sealing effect of the welded pipe fitting, the weld usually needs to be inspected.

[0003] According to the Chinese Patent Publication No. CN220305134U, "Visual Inspection and Positioning Structure for Pipe Welds," the main components include a frame, a moving part, a fixing part, a first cylinder, a motor, a clamping part, a contacting part, a sensor, a high-exposure device, and a photographing device. The housing of the first cylinder is connected to the frame via a first moving mechanism, and the piston rod of the first cylinder is connected to the moving part. The motor is located above the first cylinder, and its housing is connected to the moving part. The output shaft of the motor passes through the moving part and is connected to the clamping part. The fixing part is connected to the frame via a second moving mechanism. The contacting part is rotatably connected to the fixing part. The sensor is connected to the frame via a first bracket, and the sensor is located between the moving part and the fixing part. The high-exposure device is connected to the frame via a second bracket. The photographing device is connected to the frame via a third bracket. Both ends of the pipe are connected to the clamping part and the contacting part, respectively.

[0004] Common pipe weld visual inspections can be performed manually, or, as described in the aforementioned patent, by placing the welded pipe fitting between a clamping member and abutment member, a first cylinder drives a motor, clamping member, and moving member to clamp the welded pipe fitting between the clamping member and abutment member. The motor then drives the clamping member to rotate, causing the welded pipe fitting to rotate as well. Simultaneously, a high-exposure device emits light onto the welded pipe fitting, separating the weld color from the oil stains on the fitting itself. When the photographing device takes a picture of the welded pipe fitting, the motor stops. If the sensor does not detect the weld in the picture, it sends a command to the motor to continue operating. The photographing continues after the welded pipe fitting has rotated a certain angle until the sensor detects the weld in the picture, at which point the motor stops, and the weld stops at the designated position. A robotic arm then places the welded pipe fitting into a stamping mold. This mechanized confirmation of the weld position reduces the labor required by workers and solves the problem of high labor intensity associated with manual weld confirmation in existing technologies.

[0005] However, the method described in the aforementioned patent for visual inspection and positioning of pipe welds has certain limitations in practical use due to the size and shape of the pipes. It cannot limit and clamp the pipes according to their diameter and shape, which makes it impossible for the imaging equipment to accurately capture the weld image, thus affecting the accuracy of the inspection results. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a visual inspection and positioning structure for pipe welds, which improves the ability of the visual inspection and positioning structure to limit the positioning of pipes of different diameters and shapes, while also enhancing inspection accuracy.

[0007] The technical solution adopted by this utility model to solve the technical problem is: a visual inspection and positioning structure for pipe welds, including a base plate and a fixed frame. A low-light detector is fixedly connected to the upper end of the fixed frame. A first groove is opened on both sides of the upper end of the base plate. A bidirectional screw is rotatably connected in the first groove. A lower clamping frame is threadedly connected to the two mutually distant sides of the bidirectional screw. A slot is opened on the upper side of the lower clamping frame. A slide rod is fixedly connected in the slot. An upper clamping frame is sleeved on the slide rod. A V-shaped groove is opened on the side of the upper clamping frame opposite to the lower clamping frame. A rotating sleeve is threadedly connected to the upper side of the slide rod. The rotating sleeve abuts against the upper end of the upper clamping frame. A V-shaped recess is opened on the side of the lower clamping frame opposite to the upper clamping frame. A strip-shaped airbag contacts the V-shaped recess. An inflation valve is fixedly connected to one side of the strip-shaped airbag. An abutment plate is provided on the two mutually distant sides of the lower clamping frames. A slider is provided on the side of the abutment plate near the fixed frame. A strong light source is fixedly connected to the slider. A reflective strip is fixedly connected to the base plate inside the fixed frame.

[0008] As a preferred technical solution of this utility model, the upper clamping frame and the lower clamping frame are both fixedly connected to the V-shaped recess with limiting bands. The limiting bands abut against the strip-shaped airbag. By setting the limiting bands, the strip-shaped airbag can be limited in conjunction with the V-shaped recess.

[0009] As a preferred technical solution of this utility model, a baffle is fixedly connected to one side of each of the two upper clamping frames. When the lower clamping frame contacts the fixed frame, the baffle contacts the fixed frame. By setting the baffle, the light leakage caused by the gap between the upper and lower clamping frames and the fixed frame can be reduced.

[0010] As a preferred technical solution of this utility model, an auxiliary rod is inserted into the lower clamping frame. The auxiliary rod is fixedly connected in the first groove. By setting the auxiliary rod, it is convenient to cooperate with the first groove to limit the position of the abutment plate.

[0011] As a preferred technical solution of this utility model, two abutment plates are sleeved on the auxiliary rod. Each of the two abutment plates has a V-shaped abutment groove on its opposite side. The abutment plate has a second groove in the V-shaped abutment groove, and the slider is located in the second groove. By setting the abutment plate, the V-shaped abutment groove, the second groove, and the slider, the position of the strong light source can be easily adjusted, and the strong light source can be placed inside the pipe to be inspected.

[0012] This utility model has the following advantages:

[0013] (1) By placing the pipe fitting with weld between two relatively movable upper and lower clamping frames, adjusting the position of the weld to the fixed frame, and then monitoring it with a low-light detector, a strong light source provides the light source to be inspected in the pipe. When a low-light signal appears in the fixed frame, it can be proven that there is a problem with the weld of the pipe fitting.

[0014] (2) By setting up baffles on opposite sides of the two upper clamping frames, and in conjunction with the strip airbag in the V-shaped recess, the gap between the upper and lower clamping frames can be further sealed, and the gap between the fixed frame and the upper and lower clamping frames can also be sealed. Then the abutment plate and slider can seal the two ends of the pipe to be inspected, which can reduce the influence of external ambient light on the test results. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of a preferred embodiment of the visual inspection and positioning structure for pipe welds of this utility model;

[0016] Figure 2 This is a three-dimensional structural diagram of the lower clamping frame of the visual inspection and positioning structure for pipe welds according to a preferred embodiment of this utility model.

[0017] Figure 3 This is a side sectional view of the bottom plate of the visual inspection and positioning structure for pipe weld seams according to a preferred embodiment of the present invention.

[0018] Explanation of reference numerals in the attached drawings: 1. Base plate; 2. Fixing frame; 3. Low-light detector; 4. First groove; 5. Bidirectional screw; 6. Lower clamping frame; 7. V-groove; 8. Slot; 9. Slide rod; 10. Upper clamping frame; 11. Rotary sleeve; 12. V-shaped recess; 13. Strip-shaped airbag; 14. Inflation valve; 15. Limiting band; 16. Baffle; 17. Auxiliary rod; 18. Abutment plate; 19. V-shaped abutment groove; 20. Second groove; 21. Slider; 22. High-intensity light source; 23. Reflective strip. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Please refer to the following: Figure 1-3The visual inspection and positioning structure for pipe welds shown includes a base plate 1 and a fixed frame 2. A display screen is fixedly connected to one side of the fixed frame 2. The display screen is connected in series with a low-light detector 3 via wires. The low-light detector 3 and the display screen are powered by an external power supply. The low-light detector 3 is fixedly connected to the upper end of the fixed frame 2. The low-light detector 3 uses optical principles to magnify and display weak light and images. It acquires images through optical photography, and then processes them by magnification, increasing contrast, and increasing brightness before transmitting the image data to the display screen on one side of the fixed frame 2, facilitating observation. The upper end of the base plate 1 has first grooves 4 on both sides. A bidirectional screw 5 is rotatably connected in the first groove 4. A drive motor is installed on one side of the bidirectional screw 5 and is fixedly connected to one side of the base plate 1. The drive motor drives the bidirectional screw 5 to rotate, which moves the two sets of upper clamping frames 10 and lower clamping frames 6 relative to each other until they abut against the fixed frame 2. This creates a closed, dark environment for the fixed frame 2, reducing the impact of ambient light on the inspection accuracy. The double-ended screw 5 has a lower clamping frame 6 threadedly connected to both sides that are far apart from each other. A slot 8 is provided on the upper side of the lower clamping frame 6, and a slide rod 9 is fixedly connected within the slot 8. An upper clamping frame 10 is sleeved on the slide rod 9. A V-groove 7 is provided on the opposite side of the upper clamping frame 10 and the lower clamping frame 6. The V-groove 7 allows for clamping of the pipe fitting to be inspected. A screw sleeve 11 is threadedly connected to the upper side of the slide rod 9, providing a limit to the upper clamping frame 10. The screw sleeve 11 abuts against the upper end of the upper clamping frame 10. The lower clamping frame 6 and the upper clamping frame 10... V-shaped recesses 12 are provided on opposite sides. The V-shaped recesses 12 are used to limit the strip-shaped airbag 13. The inflation valve 14 is an integral structure, including valve core seat, valve core rod, valve core spring, valve core lock and matching rubber tube structure. As the core of inflation and deflation control, the inflation valve 14 is usually made of stainless steel or aluminum alloy. It achieves unidirectional gas flow through a one-way valve structure to prevent air leakage. The valve core seat is a metal or plastic component fixed in the tire groove to ensure that the valve core is firmly installed and maintains a seal.The valve stem (valves cap) is a cover that protects the valve stem. Made of plastic or metal, it prevents dust and moisture from entering, extending the valve stem's lifespan. The valve stem spring, a flexible component located within the valve stem, ensures the valve cap fits tightly against the valve stem, preventing air leakage. The valve stem lock rotary button is used to lock the valve cap, facilitating quick opening and closing during inflation and deflation. Some models are equipped with a high-elasticity rubber hose (such as a 35cm long leather hose), primarily used to connect the air pump to the valve, assisting in inflating the strip-shaped airbag 13. A strip-shaped airbag 13 contacts the V-shaped recess 12. An inflation valve 14 is fixedly connected to one side of the strip-shaped airbag 13. Abutment plates 18 are provided on the opposite sides of the two lower clamping frames 6. The abutment plates 18 are used to abut the two ends of the pipe fitting to be inspected, sealing the port from contact with the ambient light. A slider 21 is provided on the side of the abutment plate 18 near the fixed frame 2. A strong light source 22 is fixedly connected to the slider 21. A reflective strip 23 is fixedly connected to the bottom plate 1 inside the fixed frame 2. The reflective strip 23 is used to scatter the light source on the bottom side of the pipe fitting to be inspected, thereby facilitating inspection.

[0021] The upper clamping frame 10 and the lower clamping frame 6 are both fixedly connected to the limiting band 15 at the V-shaped recess 12. The limiting band 15 is made of Velcro and abuts against the strip-shaped airbag 13. By setting the limiting band 15 on the V-shaped recess 12, it is easy to limit and disassemble.

[0022] Each of the two upper clamping frames 10 has a baffle 16 fixedly connected to one side of the opposite side. When the lower clamping frame 6 contacts the fixed frame 2, the baffle 16 contacts the fixed frame 2. By setting the baffle 16, the gap between the upper clamping frame 10 and the fixed frame 2 can be sealed, which can reduce the amount of ambient light entering the fixed frame 2 from the gap between the upper clamping frame 10 and the fixed frame 2.

[0023] An auxiliary rod 17 is inserted into the lower clamping frame 6. The auxiliary rod 17 is movably inserted into the abutment plate 18. The auxiliary rod 17 is fixedly connected in the first groove 4. By setting the auxiliary rod 17, the abutment plate 18 can be moved easily in the first groove 4.

[0024] The auxiliary rod 17 is fitted with two abutment plates 18. Each abutment plate 18 has a V-shaped abutment groove 19 on one side opposite to the other. The abutment plate 18 has a second groove 20 inside the V-shaped abutment groove 19, and the slider 21 is located inside the second groove 20. By setting the V-shaped abutment groove 19, support can be provided at both ends of the pipe to be inspected. At the same time, by setting the second groove 20 and the slider 21, the strong light source 22 can move up and down inside the V-shaped abutment groove 19, which can adapt to pipes of different diameters.

[0025] Working principle: First, the pipe to be inspected is inserted from one side of the fixed frame 2. Then, according to the length of the pipe to be inspected, the rotation of the bidirectional screw 5 is adjusted so that the two sets of upper clamping frames 10 and lower clamping frames 6 move relative to each other and provide clamping for the pipe to be inspected. The position of the weld seam of the pipe to be inspected is adjusted to the corresponding micro-light detector 3. Then, the abutment plate 18 is used to provide abutment for the end of the pipe to be inspected. Then, the strong light source 22 is turned on so that the inside of the pipe to be inspected is covered with light. At this time, the lower clamping frame 6 and the baffle 16 abut against the fixed frame 2, so that the fixed frame 2 is a closed environment. Under the action of the strip airbag 13, the gap between the upper clamping frame 10 and the lower clamping frame 6 can be further reduced, reducing the influence of the external ambient light on the environment inside the fixed frame 2. At this time, the micro-light detector 3 detects the position of the weld seam of the pipe to be inspected inside the fixed frame 2, and the reflective strip 23 provides light reflection, which can detect whether there are holes in the weld seam.

[0026] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

[0027] All other parts of this utility model that are not described in detail belong to the prior art, and therefore will not be described in detail here.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A visual inspection and positioning structure for pipe welds, comprising a base plate (1) and a fixing frame (2), wherein a low-light detector (3) is fixedly connected to the upper end of the fixing frame (2), characterized in that, The base plate (1) has first grooves (4) on both sides of its upper end. A bidirectional screw (5) is rotatably connected in the first groove (4). A lower clamping frame (6) is threaded to both sides of the bidirectional screw (5) that are far apart from each other. A slot (8) is provided on the upper side of the lower clamping frame (6). A slide rod (9) is fixedly connected in the slot (8). An upper clamping frame (10) is sleeved on the slide rod (9). A V-groove (7) is provided on the side of the upper clamping frame (10) that is opposite to the lower clamping frame (6). A rotating sleeve (11) is threaded to the upper side of the slide rod (9). The rotating sleeve (11) is connected to the upper clamping frame (6). 10) The upper end abuts, and the lower clamping frame (6) and the upper clamping frame (10) are respectively provided with V-shaped recesses (12) on the opposite side. The V-shaped recesses (12) are in contact with strip-shaped airbags (13). An inflation valve (14) is fixedly connected to one side of the strip-shaped airbags (13). The two lower clamping frames (6) are respectively provided with abutting plates (18) on the opposite side. The abutting plate (18) is provided with a slider (21) on the side close to the fixed frame (2). A strong light source (22) is fixedly connected to the slider (21). The bottom plate (1) is located inside the fixed frame (2) and a reflective strip (23) is fixedly connected.

2. The visual inspection and positioning structure for pipe fitting welds as described in claim 1, characterized in that, The upper clamping frame (10) and the lower clamping frame (6) are both fixedly connected to a limiting band (15) at the V-shaped recess (12), and the limiting band (15) abuts against the strip-shaped airbag (13).

3. The visual inspection and positioning structure for pipe fitting welds as described in claim 2, characterized in that, Each of the two upper clamping frames (10) is fixedly connected to a baffle (16) on one side opposite to the lower clamping frame (6). When the lower clamping frame (6) contacts the fixed frame (2), the baffle (16) contacts the fixed frame (2).

4. The visual inspection and positioning structure for pipe fitting welds as described in claim 3, characterized in that, An auxiliary rod (17) is inserted into the lower clamping frame (6), and the auxiliary rod (17) is fixedly connected in the first groove (4).

5. The visual inspection and positioning structure for pipe fitting welds as described in claim 4, characterized in that, Two abutment plates (18) are sleeved on the auxiliary rod (17). Each of the two abutment plates (18) has a V-shaped abutment groove (19) on its opposite side. The abutment plate (18) has a second groove (20) in the V-shaped abutment groove (19), and the slider (21) is located in the second groove (20).

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