A laser scanning type groove cleanliness detection device for use before pipe alignment

Abstract

A laser scanning type groove cleanliness detection device for before pipe alignment, which relates to the technical field of pipe alignment, includes: a scanning and cleaning mechanism, a quick support mechanism; the scanning and cleaning mechanism includes: a central axis, a central ring, a rotating frame, a worm gear ring, a worm, a stepping motor I, a stepping motor III; the central ring is fixedly installed on the central axis, the rotating frame is rotatably installed in the circular groove on the central ring, the worm gear ring is rotatably installed in the circular groove on the side of the rotating frame, the worm gear on the worm gear ring meshes with the worm, both ends of the worm are rotatably installed on the extension brackets on the rotating frame, and one end of the worm is also connected to the motor shaft of the stepping motor I; when the present invention is in use, it can clean while performing infrared scanning, and the scanning and cleaning continuously rotate around the groove until the scanning data indicates that the groove is clean, and the positions of the cleaning component and the scanning component can be adjusted synchronously, so as to adapt to pipes of different diameters.

Description

Technical Field

[0001] The present invention relates to the technical field of pipe alignment, and particularly to a laser scanning type groove cleanliness detection device for use before pipe alignment. Background Art

[0002] In pipeline engineering, groove cleanliness is one of the key factors affecting welding quality. If there are impurities such as oil stains, rust, and scale on the groove surface, it will not only reduce the mechanical properties of the weld, but may also cause welding defects such as pores and cracks, seriously affecting the safety and reliability of the pipeline system. Traditional groove cleanliness detection methods mainly rely on manual visual inspection or contact measurement tools, which have limitations such as low efficiency, poor accuracy, and being easily interfered by human factors. With the development of industrial automation and intelligent manufacturing technologies, laser scanning technology has gradually shown application potential in the field of groove cleanliness detection due to its non-contact, high-precision, and high-efficiency characteristics.

[0003] Traditional detection methods (such as visual inspection and vernier caliper measurement) are difficult to quantify the microscopic cleanliness of the groove surface and have poor adaptability to grooves with complex shapes or in narrow spaces. Contact measurement tools may scratch the groove surface, affecting the subsequent welding quality. Summary of the Invention

[0004] In view of the above technical problems, the present invention discloses a laser scanning type groove cleanliness detection device for use before pipe alignment, which can effectively solve the problems in the background art. When in use, the present invention can perform cleaning while performing infrared scanning, and the scanning and cleaning continuously rotate around the groove until the scanning data indicates that the groove is clean. Moreover, the positions of the cleaning component and the scanning component can be adjusted synchronously to adapt to pipes of different diameters. When in use, the present invention can quickly perform positioning. After the support mechanism of the device extends into the pipe to a certain position, rotate the knob. Through a series of extrusion transmissions, the top block extrudes the inclined surface slider outwards, so that the support rod extends, and the rubber head outside the support rod closely adheres to the inner wall of the pipe, thereby forming eight support points for quick support positioning to achieve a stable detection environment.

[0005] A laser scanning type groove cleanliness detection device for pipe alignment before butt welding, comprising: a scanning and cleaning mechanism, a quick support mechanism; the scanning and cleaning mechanism includes: a central shaft, a central ring, a rotating frame, a worm gear ring, a worm, a stepping motor I, a stepping motor III; the central ring is fixedly installed on the central shaft, the rotating frame is rotatably installed in the circular groove on the central ring, the worm gear ring is rotatably installed in the circular groove on the side of the rotating frame, the worm gear on the worm gear ring meshes with the worm, both ends of the worm are rotatably installed on the extension brackets on the rotating frame, one end of the worm is also connected to the motor shaft of the stepping motor I, and the stepping motor I is fixedly installed on the extension brackets on the rotating frame; the stepping motor III is fixedly installed on the extension brackets on the central ring, and the motor gear of the stepping motor III meshes with the teeth on the rotating frame.

[0006] Preferably, the scanning and cleaning mechanism further includes: a connecting rod, an upper telescopic frame, an infrared scanner, a lower telescopic frame; there are two connecting rods, the inner end of each connecting rod is rotatably connected to the shaft on the worm gear ring, the outer end of the upper connecting rod is rotatably connected to the shaft on the upper telescopic frame, and the outer end of the lower connecting rod is rotatably connected to the shaft on the lower telescopic frame; both the upper telescopic frame and the lower telescopic frame are slidably installed in the sleeve on the rotating frame, and an infrared scanner is fixedly installed on the upper telescopic frame.

[0007] Preferably, the scanning and cleaning mechanism further includes: a brush wheel, a stepping motor II; the shaft of the brush wheel is rotatably installed on the lower telescopic frame, the shaft of the brush wheel is connected to the motor shaft of the stepping motor II, and the stepping motor II is installed on the lower telescopic frame.

[0008] Preferably, the quick support mechanism includes: a support frame, a support rod, an inclined plane slider, a short shaft and a driving component; the support frame is fixedly installed on the central shaft, the support rod is provided with a notch, and the notch is movably connected to the shaft of the triangular brackets at the four corners of the support frame, the circular hole at the inner end of the support rod is rotatably connected to the short shaft, the short shaft is fixedly installed on the inclined plane slider, and the extension rod on the inclined plane slider is slidably installed in the circular hole protruding from the support frame, and a spring is provided on the extension rod of the inclined plane slider.

[0009] Preferably, the driving component includes: a top block, a short rod, a snap ring, a long rod, a top ring, a knob; the top block is fixedly connected to the short rod, the inclined plane on the top block contacts the inclined plane on the inclined plane slider, the short rod is slidably connected to the circular hole protruding from the support frame, the short rod is also fixedly connected to the snap ring, the snap ring is slidably installed on the central shaft, the lower telescopic frame is fixedly connected to one end of the long rod, the other end of the long rod is fixedly connected to the top ring, the top ring is slidably installed on the central shaft, and the knob is threadedly connected to the outer end of the central shaft, and the inner end face of the knob contacts the top ring.

[0010] Preferably, a rubber head is provided at the outer end of the support rod.

[0011] Preferably, the top block is made of nickel alloy material.

[0012] The beneficial effects of the present invention compared with the prior art are as follows: 1. When the present invention is in use, it can perform cleaning while performing infrared scanning, and the scanning and cleaning continuously rotate around the groove until the scanning data indicates that the groove is clean. Moreover, the positions of the cleaning component and the scanning component can be adjusted synchronously to adapt to pipes of different diameters.

[0013] 2. When the present invention is in use, it can quickly perform positioning. After the support mechanism of the device extends into the pipe to a certain position, rotate the knob. Through a series of extrusion transmissions, the top block extrudes the inclined plane slider outward, so that the support rod extends, and the rubber head outside the support rod closely adheres to the inner wall of the pipe, thereby forming eight support points for quick support and positioning to achieve a stable detection environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the overall structure of the present invention installed in a pipe.

[0015] Figure 2 It is an isometric view of the overall structure of the present invention.

[0016] Figure 3 It is a side view of the overall structure of the present invention.

[0017] Figure 4 It is a first perspective view of the scanning and cleaning mechanism of the present invention.

[0018] Figure 5 It is a second perspective view of the scanning and cleaning mechanism of the present invention.

[0019] Figure 6 It is a structural diagram of the rotating frame of the present invention.

[0020] Figure 7 It is a structural diagram of the central ring of the present invention.

[0021] Figure 8 It is a structural diagram of the worm gear ring of the present invention.

[0022] Figure 9 It is a structural diagram of the quick support mechanism of the present invention.

[0023] Figure 10 It is a structural diagram of the drive component of the present invention.

[0024] Figure 11 It is a structural diagram of the knob of the present invention.

[0025] Reference numerals in the drawings: 1, central axis; 2, central ring; 3, rotating frame; 4, worm gear ring; 5, worm; 6, stepper motor I; 7, connecting rod; 8, upper telescopic frame; 9, infrared scanner; 10, lower telescopic frame; 11, brush wheel; 12, stepper motor II; 13, stepper motor III; 14, support frame; 15, support rod; 16, inclined plane slider; 17, short shaft; 18, top block; 19, short rod; 20, snap ring; 21, long rod; 22, top ring; 23, knob. Specific embodiments

[0026] The technical solution of the present invention will be further specifically described below through examples in combination with the drawings. Many specific details are set forth in the following description in order to fully understand the invention patent. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0027] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the invention product is usually placed during use. It is only for the convenience of describing the invention patent and is a simplified description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the invention patent. In addition, for the convenience of description, spatial relative terms can be used in the text, such as "below", "beneath", "under", "above", "over", etc., to describe the relationship of one element or feature relative to another element or feature as shown in the drawings. The spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation shown in the drawings. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatial relative descriptive terms used in the text can be similarly interpreted accordingly.

[0028] As shown in the embodiment Figures 1-11 A laser scanning type groove cleanliness detection device for before pipe alignment includes: a scanning and cleaning mechanism, a quick support mechanism;

[0029] In an optional embodiment of the embodiment of the present invention, as Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8As shown in the figure, the scanning and cleaning mechanism includes: a central shaft 1, a central ring 2, a rotating frame 3, a worm gear ring 4, a worm 5, a stepping motor I 6, and a stepping motor III 13; the central ring 2 is fixedly installed on the central shaft 1, the rotating frame 3 is rotatably installed in the circular groove of the central ring 2, the worm gear ring 4 is rotatably installed in the circular groove on the side of the rotating frame 3, the worm gear on the worm gear ring 4 meshes with the worm 5, both ends of the worm 5 are rotatably installed on the extending brackets of the rotating frame 3, and one end of the worm 5 is also connected to the motor shaft of the stepping motor I 6, and the stepping motor I 6 is fixedly installed on the extending bracket of the rotating frame 3; the stepping motor III 13 is fixedly installed on the extending bracket of the central ring 2, and the motor gear of the stepping motor III 13 meshes with the teeth on the rotating frame 3.

[0030] In an alternative embodiment of the present invention, as Figure 4 shown, the scanning and cleaning mechanism further includes: a connecting rod 7, an upper telescopic frame 8, an infrared scanner 9, and a lower telescopic frame 10; there are two connecting rods 7, the inner end of each connecting rod 7 is rotatably connected to the shaft on the worm gear ring 4, the outer end of the upper connecting rod 7 is rotatably connected to the shaft on the upper telescopic frame 8, and the outer end of the lower connecting rod 7 is rotatably connected to the shaft on the lower telescopic frame 10; both the upper telescopic frame 8 and the lower telescopic frame 10 are slidably installed in the sleeve on the rotating frame 3, and the infrared scanner 9 is fixedly installed on the upper telescopic frame 8.

[0031] In an alternative embodiment of the present invention, as Figure 4 shown, the scanning and cleaning mechanism further includes: a brush wheel 11 and a stepping motor II 12; the shaft of the brush wheel 11 is rotatably installed on the lower telescopic frame 10, the shaft of the brush wheel 11 is connected to the motor shaft of the stepping motor II 12, and the stepping motor II 12 is installed on the lower telescopic frame 10.

[0032] In an alternative embodiment of the present invention, as Figure 9 shown, the quick support mechanism includes: a support frame 14, a support rod 15, an inclined plane slider 16, a short shaft 17, and a driving component; the support frame 14 is fixedly installed on the central shaft 1, the support rod 15 is provided with a notch, the notch is movably connected to the shaft of the triangular brackets at the four corners of the support frame 14, the round hole at the inner end of the support rod 15 is rotatably connected to the short shaft 17, the short shaft 17 is fixedly installed on the inclined plane slider 16, the extending rod on the inclined plane slider 16 is slidably installed in the raised round hole on the support frame 14, and a spring is provided on the extending rod of the inclined plane slider 16.

[0033] In an alternative embodiment of the present invention, as Figure 10 、 Figure 11As shown in the figure, the driving component includes: a top block 18, a short rod 19, a snap ring 20, a long rod 21, a top ring 22, and a knob 23; the top block 18 is fixedly connected to the short rod 19, the inclined surface on the top block 18 contacts the inclined surface on the inclined surface slider 16, the short rod 19 is slidably connected to the raised round hole on the support frame 14, the short rod 19 is also fixedly connected to the snap ring 20, the snap ring 20 is slidably mounted on the central shaft 1, the lower telescopic frame 10 is fixedly connected to one end of the long rod 21, the other end of the long rod 21 is fixedly connected to the top ring 22, the top ring 22 is slidably mounted on the central shaft 1, the knob 23 is threadedly connected to the outer end of the central shaft 1, and the inner end surface of the knob 23 contacts the top ring 22.

[0034] In an alternative embodiment of the embodiment of the present invention, as Figure 9 shown, a rubber head is provided at the outer end of the support rod 15.

[0035] In an alternative embodiment of the embodiment of the present invention, as Figure 10 shown, the top block 18 is made of nickel alloy material.

[0036] Working principle: When the present invention is in use, first insert the support mechanism end of the device into the pipeline. When the scanning component and the cleaning component reach the groove, stop. Then rotate the knob 23. The knob 23 rotates inward, squeezing the top ring 22 to slide inward, thereby squeezing the top block 18 through the snap ring 20. The top block 18 squeezes the inclined surface slider 16 to both sides, so that the support rod 15 extends outwards until the support rod 15 abuts against the inner wall of the pipeline. At this time, the whole device is stable on the pipeline;

[0037] Subsequently, adjust the scanning and cleaning position. The stepping motor I 6 is started, driving the worm 5 to rotate, thereby driving the worm gear ring 4 to rotate. The worm gear ring 4 drives the upper telescopic frame 8 and the lower telescopic frame 10 to expand and contract through the connecting rod 7, so that the infrared scanner 9 and the brush wheel 11 reach the appropriate position of the pipeline groove. Then the stepping motor III 13 is started, driving the rotating frame 3 to rotate, so that the infrared scanner 9 and the brush wheel 11 rotate, achieving the purpose of scanning and cleaning at the same time until it is cleaned. After cleaning, release the fixing device. All the springs in the figure play a role in resetting.

[0038] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laser scanning groove cleanliness detection device before pipe alignment, characterized in that Including: A scanning and cleaning mechanism, a quick support mechanism; The described scanning and cleaning mechanism includes: a central shaft (1), a central ring (2), a rotating frame (3), a worm gear ring (4), a worm (5), a stepping motor I (6), a stepping motor III (13); the central ring (2) is fixedly installed on the central shaft (1), the rotating frame (3) is rotatably installed in the circular groove of the central ring (2), the worm gear ring (4) is rotatably installed in the circular groove on the side of the rotating frame (3), the worm gear on the worm gear ring (4) meshes with the worm (5), both ends of the worm (5) are rotatably installed on the extended brackets of the rotating frame (3), one end of the worm (5) is also connected to the motor shaft of the stepping motor I (6), and the stepping motor I (6) is fixedly installed on the extended bracket of the rotating frame (3); the stepping motor III (13) is fixedly installed on the extended bracket of the central ring (2), and the motor gear of the stepping motor III (13) meshes with the teeth on the rotating frame (3); The described quick support mechanism includes: a support frame (14), a support rod (15), an inclined plane slider (16), a short shaft (17), and a driving component; the support frame (14) is fixedly installed on the central shaft (1), the support rod (15) is provided with a notch, and the notch is movably connected to the shafts of the triangular brackets at the four corners of the support frame (14), the circular hole at the inner end of the support rod (15) is rotatably connected to the short shaft (17), the short shaft (17) is fixedly installed on the inclined plane slider (16), and the extended rod on the inclined plane slider (16) is slidably installed in the circular hole protruding from the support frame (14), and a spring is provided on the extended rod of the inclined plane slider (16); The described driving component includes: a top block (18), a short rod (19), a retaining ring (20), a long rod (21), a top ring (22), a knob (23); the top block (18) is fixedly connected to the short rod (19), the inclined plane on the top block (18) contacts the inclined plane on the inclined plane slider (16), the short rod (19) is slidably connected to the circular hole protruding from the support frame (14), the short rod (19) is also fixedly connected to the retaining ring (20), the retaining ring (20) is slidably installed on the central shaft (1), the lower telescopic frame (10) is fixedly connected to one end of the long rod (21), the other end of the long rod (21) is fixedly connected to the top ring (22), the top ring (22) is slidably installed on the central shaft (1), and the knob (23) is threadedly connected to the outer end of the central shaft (1), and the inner end face of the knob (23) contacts the top ring (22).

2. The laser scanning type groove cleanliness detection device for pipeline butt welding according to claim 1, characterized in that, The described scanning and cleaning mechanism further includes: a connecting rod (7), an upper telescopic frame (8), an infrared scanner (9), a lower telescopic frame (10); there are two connecting rods (7), the inner end of each connecting rod (7) is rotatably connected to the shaft on the worm gear ring (4), the outer end of the upper connecting rod (7) is rotatably connected to the shaft on the upper telescopic frame (8), and the outer end of the lower connecting rod (7) is rotatably connected to the shaft on the lower telescopic frame (10); both the upper telescopic frame (8) and the lower telescopic frame (10) are slidably installed in the sleeve on the rotating frame (3), and the infrared scanner (9) is fixedly installed on the upper telescopic frame (8).

3. The laser scanning type groove cleanliness detection device for pipeline butt welding according to claim 2, wherein, The described scanning and cleaning mechanism further includes: a brush wheel (11) and a stepper motor II (12); the shaft of the brush wheel (11) is rotatably installed on the lower telescopic frame (10), the shaft of the brush wheel (11) is connected to the motor shaft of the stepper motor II (12), and the stepper motor II (12) is installed on the lower telescopic frame (10).

4. A laser scanning groove cleanliness detection device for pipeline butt welding before according to claim 1, characterized in that, The outer end of the described support rod (15) is provided with a rubber head.

5. A laser scanning type groove cleanliness detection device for pipeline butt welding according to claim 1, characterized in that, The described top block (18) is made of nickel alloy material.

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