Pipeline welding seam detection system based on full focusing technology

Abstract

The invention discloses a pipeline welding seam detection system based on a full focusing technology, and relates to the technical field of welding seams, the pipeline welding seam detection system comprises a fixing frame, supporting legs are symmetrically clamped at the bottom end of the fixing frame at equal intervals, a clamping and rotating mechanism is arranged at one side of the top end of the fixing frame, and the clamping and rotating mechanism comprises a base plate; the device is scientific and reasonable in structure and safe and convenient to use, a clamping and rotating mechanism is arranged, a tensioning spring, a pulling gasket, a cross rod and a clamping wheel slide along a cross shaft sleeve, the clamping and rotating mechanism is arranged, the clamping and rotating mechanism is arranged, the clamping and rotating mechanism is arranged, the clamping and rotating efficiency is improved, and the clamping and rotating efficiency is improved. The position of the clamping wheel is adjusted according to needs, products of different sizes are clamped and positioned, the clamping wheel on one rotating ring is matched with the clamping wheel on the other rotating ring, the products are clamped in different directions, the stability of the products is improved, and horizontal detection is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of welds, and in particular to a pipeline weld detection system based on full focusing technology. Background Art

[0002] Weld defect detection refers to the quality inspection of welding results, the purpose of which is to ensure the integrity, reliability, safety and practicality of the welded structure. For example, a method, system and device for ultrasonic plane wave full-focus detection of pipe seat fillet welds at the pipe end of the pipe is disclosed, with application number (CN 202311349972.7). This patent can automatically calculate the probe position and weld cross-sectional profile based on the imaging results; However, the detection method of this patent is relatively single and has poor adaptability. It is also inconvenient to conduct comprehensive weld inspection of the product from multiple directions, which is prone to omissions and reduces the accuracy of the inspection. Therefore, in order to avoid the above technical problems, we need to provide a pipeline weld inspection system based on full focusing technology to overcome the above defects in the prior art. Summary of the invention

[0003] The present invention provides a pipeline weld inspection system based on full focusing technology, which can effectively solve the problems that the inspection method proposed in the above background technology is relatively single, has poor adaptability, is inconvenient to conduct comprehensive weld inspection of products from multiple directions, is prone to omissions, and reduces the accuracy of inspection.

[0004] To achieve the above object, the present invention provides the following technical solution: a pipeline weld inspection system based on total focusing technology, comprising a fixed frame, the bottom end of the fixed frame is symmetrically clamped with legs, a clamping and rotating mechanism is arranged at one side of the top end of the fixed frame, and the clamping and rotating mechanism includes a pad; A pad is installed on one side of the top of the fixing frame, the top of the pad is clamped with a limit frame, and a rotating ring is rotatably connected between two adjacent limit frames, a cross sleeve is equidistantly movably connected to the outside of the rotating ring, a cross rod is movably connected inside the cross sleeve, and a clamping wheel is installed at one end of the cross rod at a position corresponding to the inner side of the rotating ring; A gasket is clamped at the other end of the cross rod, an adjusting ring is sleeved on the outer side of the cross sleeve through a threaded sleeve, and a tensioning spring is clamped between the adjusting ring and the gasket; A dual-axis motor is installed at the bottom end of the fixed frame, and a cross bar is clamped at one end of the dual-axis motor. A driving gear is symmetrically sleeved at the outer side of the cross bar corresponding to the bottom position of the pad. One end of the limit frame located on both sides of the pad corresponds to the top position of the driving gear and is rotatably connected to a driven gear, and a gear ring is sleeved on the outer side of the rotating ring.

[0005] According to the above technical solution, a rubber sleeve is sleeved on the outer side of the clamping wheel, the cross rods on the two rotating rings are staggered, and the inner diameters and outer diameters of the two rotating rings are equidistant.

[0006] According to the above technical solution, the outer diameter of the gasket is equal to the outer diameter of the adjustment ring, the outer side of the adjustment ring is evenly provided with anti-slip grooves, and the inner diameter of the tension spring is larger than the outer diameter of the cross sleeve.

[0007] According to the above technical solution, a slot is opened at the bottom end of the fixed frame corresponding to the top position of the dual-axis motor, a fixed block is clamped at the bottom end of the fixed frame corresponding to the outer position of the cross bar, and the inner wall of the fixed block is rotatably connected to the outer side of the cross bar, and the driving gear, driven gear and gear ring are meshed with each other.

[0008] According to the above technical solution, the top of the fixing frame is symmetrically provided with a conveying and adjusting mechanism on both sides, and the conveying and adjusting mechanism includes a vertical frame; Vertical frames are symmetrically connected to both sides of the top of the fixed frame, and the top and bottom of the vertical frames are movably connected to concave plates, and the adjacent ends of the two concave plates are rotatably connected to conveying rollers, and the opposite ends of the two conveying rollers are symmetrically connected to electric telescopic rods, and a rotating motor is installed at one end of one of the concave plates; One end of the two concave plates are rotatably connected to a turntable, and one end of the concave plate located on the upper side is rotatably connected to a transmission plate at a position corresponding to the top of the turntable, one end of the turntable located on the lower side is rotatably connected to a traction rod, one end of the transmission plate is rotatably connected to a sleeve at a position corresponding to the outer side of the traction rod, and a positioning pin is threadedly connected to the outer side of the sleeve, and a transmission gear is fixedly sleeved on the outer side of the turntable located on the upper side and the outer side of the transmission plate.

[0009] According to the above technical solution, both ends of the vertical frame are provided with sliding grooves, and sliding blocks are clamped at the positions inside the sliding grooves at both ends of the concave plate, and the electric telescopic rod and the rotating motor are powered by an external power supply.

[0010] According to the above technical solution, one end of the traction rod passes through the sleeve, and one end of the positioning pin passes through the sleeve and fits tightly with one end of the traction rod. Anti-slip grooves are provided on the outside of the positioning pin and the traction rod, and the two transmission gears are meshed with each other.

[0011] According to the above technical solution, the top ends of the two vertical frames are provided with an extended support and detection mechanism, and the extended support and detection mechanism includes a horizontal frame; The tops of the two vertical frames are connected to the transverse frame by bolts, the central position of the transverse frame is rotatably connected with a bidirectional screw, the outer side of the bidirectional screw corresponds to the position inside the transverse frame and is symmetrically sleeved with a counterweight by threads, the opposite ends of the two counterweights are symmetrically clamped with limit rods, the other end of the limit rod is clamped with a splicing plate, both ends of the splicing plate are clamped with a fixing cylinder, the inner wall of the fixing cylinder is connected with a lifting rod by threads, and the bottom ends of the two lifting rods on the same side are rotatably connected with a supporting plate; Vertical plates are clamped at positions on one side of the vertical frame at both ends of the horizontal frame, and fixing rings are clamped at the bottom ends of the two vertical plates. Push rods are threadedly connected to both ends of the fixing rings, and full-focus detection probes are rotatably connected to adjacent ends of the two push rods, and protrusions are symmetrically clamped on the outside of the full-focus detection probe, and an anti-deflection rod is clamped at one end of the protrusion.

[0012] According to the above technical solution, the threads at the two ends of the outer side of the bidirectional screw rotate in opposite directions, and the outer side of the bidirectional screw is connected to the inner wall of the counterweight block through threads. Grooves are provided at both ends of the counterweight block, and a limiting plate is clamped at the inner wall of the horizontal frame at the position corresponding to the groove.

[0013] According to the above technical solution, the full-focus detection probe is powered by an external power supply, the outer side of the anti-deflection rod is movably connected to the outer side of the fixed ring, and a knob is clamped at one end of the push rod.

[0014] Compared with the prior art, the present invention has the following beneficial effects: the present invention has a scientific and reasonable structure and is safe and convenient to use: 1. A clamping and rotating mechanism is set up. Through the tension spring, pulling gasket, cross rod and clamping wheel sliding along the cross sleeve, the position of the clamping wheel is adjusted according to the needs to clamp and position products of different sizes. In addition, it cooperates with the clamping wheel on another rotating ring to clamp the product from different directions, improve the stability of the product, facilitate the horizontal movement of the product, and perform horizontal detection; By rotating the adjusting ring, the distance between the adjusting ring and the gasket is changed. The elastic force of the tensioning spring is adjusted as needed to adjust the clamping force, increase adaptability, and prevent excessive pressure from causing damage to the product. Power is transmitted through the cooperation of a dual-axis motor, a crossbar, a driving gear, a driven gear and a gear ring, pushing the two rotating rings to rotate, forcing the rotating rings to rotate with the product through the clamping wheels, and performing annular detection on the welds on the product, facilitating the realization of a dual weld detection method, thereby improving convenience and functionality.

[0015] 2. A conveying and adjustment mechanism is set up. The electric telescopic rod pushes the two concave plates inside the vertical frame to slide, changes the distance between the two concave plates, clamps and fixes products of different sizes, and improves adaptability. Then, the conveying roller inside one concave plate is driven to rotate by the rotating motor, and the power is transmitted through the cooperation of the turntable, traction rod, sleeve and transmission plate, pulling the conveying roller inside the other concave plate to rotate synchronously in the opposite direction, pushing the product to move at a uniform speed, which is convenient for conveying the product; In addition, when adjusting the two concave plates, the traction rod slides along the inside of the sleeve to ensure the adjustment effect, and then the position of the traction rod and the sleeve is fixed through the cooperation of the positioning pin, which facilitates the transmission of power.

[0016] 3. An extended support and detection mechanism is set up to detect the welds on the product through the full-focus detection probe, which improves convenience. In addition, the push rod is rotated to push the full-focus detection probe to move, and the distance between the two full-focus detection probes is adjusted through the limit of the anti-deflection rod to change the accuracy of the full-focus detection probe, further increasing the accuracy of the detection; Rotate the bidirectional screw to push the two counterweights to move synchronously and oppositely inside the horizontal frame, and through the cooperation of the limit rod, push the movement of the splicing plate and the fixed tube. Then rotate the lifting rod to push the pallet up and down, and change the height of the pallet as needed to facilitate the lifting of the product, ensure the stability of the product during transportation, and prevent tipping.

[0017] In summary, the clamping and rotating mechanism, the conveying and adjusting mechanism, and the extended support and detection mechanism cooperate to facilitate the clamping and conveying of products of different sizes, ensure the horizontal detection and temperature detection, and can push the product to rotate, which is convenient for circular detection of the product, improves adaptability, facilitates detection of products in different ways, and increases functionality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0019] In the attached picture: Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the installation structure of the limit frame of the present invention; Figure 3 It is a structural schematic diagram of the clamping and rotating mechanism of the present invention; Figure 4 It is a schematic diagram of the installation structure of the cross sleeve of the present invention; Figure 5 It is a structural schematic diagram of the conveying and regulating mechanism of the present invention; Figure 6 The present invention Figure 5 Schematic diagram of the structure of the middle A area; Figure 7 It is a structural schematic diagram of the extended support and detection mechanism of the present invention; Figure 8 It is a schematic diagram of the installation structure of the push rod of the present invention.

[0020] Numbers in the figure: 1, fixed frame; 2, supporting legs; 3. Clamping and rotating mechanism; 301. Pad; 302. Limiting frame; 303. Rotating ring; 304. Cross sleeve; 305. Cross rod; 306. Clamping wheel; 307. Gasket; 308. Adjusting ring; 309. Tensioning spring; 310. Dual-axis motor; 311. Cross rod; 312. Driving gear; 313. Driven gear; 314. Gear ring; 4. Conveying and adjusting mechanism; 401. Vertical frame; 402. Concave plate; 403. Conveying roller; 404. Electric telescopic rod; 405. Transmission gear; 406. Rotating motor; 407. Turntable; 408. Drawbar; 409. Sleeve; 410. Positioning pin; 411. Transmission plate; 5. Extended support and detection mechanism; 501. Horizontal frame; 502. Bidirectional screw; 503. Counterweight; 504. Limit rod; 505. Splicing plate; 506. Fixed cylinder; 507. Lifting rod; 508. Support plate; 509. Vertical plate; 510. Fixed ring; 511. Push rod; 512. Full-focus detection probe; 513. Bump; 514. Anti-deflection rod. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0022] Example: Figure 1-8 As shown, the present invention provides a technical solution, a pipeline weld detection system based on total focusing technology, including a fixed frame 1, the bottom end of the fixed frame 1 is equidistantly and symmetrically clamped with a leg 2, a clamping and rotating mechanism 3 is arranged at one side of the top of the fixed frame 1, and the clamping and rotating mechanism 3 includes a pad 301, a limit frame 302, a rotating ring 303, a cross sleeve 304, a cross rod 305, a clamping wheel 306, a gasket 307, an adjusting ring 308, a tensioning spring 309, a dual-axis motor 310, a cross rod 311, a driving gear 312, a driven gear 313 and a gear ring 314; A pad 301 is installed on one side of the top of the fixing frame 1, and a limiting frame 302 is clamped on the top of the pad 301, and a rotating ring 303 is rotatably connected between two adjacent limiting frames 302, and a cross shaft sleeve 304 is equidistantly connected to the outside of the rotating ring 303, and a cross shaft sleeve 304 is movably connected inside the cross shaft sleeve 304, and a clamping wheel 306 is installed at one end of the cross shaft 305 at a position corresponding to the inside of the rotating ring 303. In order to facilitate the positioning of the product, a rubber sleeve is sleeved on the outside of the clamping wheel 306. The cross rods 305 on the two rotating rings 303 are staggered, and the inner diameters and outer diameters of the two rotating rings 303 are equidistant; A gasket 307 is clamped at the other end of the cross rod 305, an adjusting ring 308 is sleeved on the outside of the cross sleeve 304 through a thread, and a tension spring 309 is clamped between the adjusting ring 308 and the gasket 307. In order to facilitate the adjustment of the elastic force, the outer diameter of the gasket 307 is equal to the outer diameter of the adjusting ring 308, and the outer side of the adjusting ring 308 is evenly provided with anti-slip grooves, and the inner diameter of the tension spring 309 is larger than the outer diameter of the cross sleeve 304; A dual-axis motor 310 is installed at the bottom of the fixed frame 1, and a cross bar 311 is clamped at one end of the dual-axis motor 310. A driving gear 312 is symmetrically sleeved at the outer side of the cross bar 311 corresponding to the bottom position of the pad 301. One end of the limit frame 302 located on both sides of the pad 301 is rotatably connected to the driven gear 313 at the top position of the driving gear 312, and a gear ring 314 is sleeved on the outer side of the rotating ring 303. In order to facilitate the transmission of power, a notch is opened at the bottom end of the fixed frame 1 corresponding to the top position of the dual-axis motor 310, and a fixed block is clamped at the bottom end of the fixed frame 1 corresponding to the outer position of the cross bar 311, and the inner wall of the fixed block is rotatably connected to the outer side of the cross bar 311, and the driving gear 312, the driven gear 313 and the gear ring 314 are meshed with each other. The top of the fixed frame 1 is symmetrically provided with a conveying and adjusting mechanism 4, which includes a vertical frame 401, a concave plate 402, a conveying roller 403, an electric telescopic rod 404, a transmission gear 405, a rotating motor 406, a turntable 407, a traction rod 408, a sleeve 409 and a positioning pin 410; Vertical frames 401 are symmetrically connected to both sides of the top of the fixed frame 1, and the top and bottom of the vertical frame 401 are movably connected to concave plates 402, and the adjacent ends of the two concave plates 402 are rotatably connected to conveying rollers 403, and the opposite ends of the two conveying rollers 403 are symmetrically connected to electric telescopic rods 404, and a rotating motor 406 is installed at one end of a concave plate 402. In order to facilitate the clamping of the product, sliding grooves are opened at both ends of the vertical frame 401, and sliders are connected at the corresponding positions inside the sliding grooves at both ends of the concave plate 402. The electric telescopic rod 404 and the rotating motor 406 are powered by an external power supply; One end of the two concave plates 402 is rotatably connected to a turntable 407, and one end of the concave plate 402 located on the top is rotatably connected to a transmission disk 411 at a position corresponding to the top of the turntable 407, and one end of the turntable 407 located on the bottom is rotatably connected to a traction rod 408, and one end of the transmission disk 411 is rotatably connected to a sleeve 409 at a position corresponding to the outer side of the traction rod 408, and a positioning pin 410 is threadedly connected to the outer side of the sleeve 409, and a transmission gear 405 is fixedly sleeved on the outer side of the turntable 407 located on the top and the transmission disk 411. In order to facilitate the movement of the product to be pushed and tested, one end of the traction rod 408 passes through the sleeve 409, and one end of the positioning pin 410 passes through the sleeve 409 and fits tightly with one end of the traction rod 408. The outer sides of the positioning pin 410 and the traction rod 408 are provided with anti-slip grooves, and the two transmission gears 405 are meshed with each other; The top of the two vertical frames 401 are both provided with an extended support and detection mechanism 5, which includes a horizontal frame 501, a bidirectional screw 502, a counterweight 503, a limit rod 504, a splicing plate 505, a fixing tube 506, a lifting rod 507, a supporting plate 508, a vertical plate 509, a fixing ring 510, a push rod 511, a full-focus detection probe 512, a bump 513 and an anti-deflection rod 514; The tops of the two vertical frames 401 are connected to the horizontal frame 501 by bolts, and a bidirectional screw 502 is rotatably connected at the center position inside the horizontal frame 501. A counterweight 503 is symmetrically sleeved at the outer side of the bidirectional screw 502 corresponding to the inner position of the horizontal frame 501 through threads. The opposite ends of the two counterweights 503 are symmetrically clamped with limit rods 504, and the other ends of the limit rods 504 are clamped with a splicing plate 505. Both ends of the splicing plate 505 are clamped with fixed cylinders 506, and the inner wall of the fixed cylinder 506 is connected with a lifting rod 507 through threads. The bottom ends of the two lifting rods 507 on the same side are rotatably connected to a supporting plate 508. In order to facilitate the support of the tested products, the threads at the two ends of the outer side of the bidirectional screw 502 rotate in opposite directions, and the outer side of the bidirectional screw 502 is connected to the inner wall of the counterweight 503 through threads. Grooves are provided at both ends of the counterweight 503, and the inner wall of the horizontal frame 501 corresponds to the groove and is clamped with a limit plate; Vertical plates 509 are clamped at the positions on one side of the vertical frame 401 corresponding to the two ends of the horizontal frame 501, and fixing rings 510 are clamped at the bottom ends of the two vertical plates 509. Push rods 511 are threadedly connected to both ends of the fixing rings 510. The adjacent ends of the two push rods 511 are rotatably connected to full-focus detection probes 512, and protrusions 513 are symmetrically clamped on the outside of the full-focus detection probe 512, and an anti-deflection rod 514 is clamped at one end of the protrusion 513. In order to facilitate the adjustment of the position of the full-focus detection probe 512, the full-focus detection probe 512 is powered by an external power supply, the outer side of the anti-deflection rod 514 is movably connected to the outer side of the fixing ring 510, and a knob is clamped at one end of the push rod 511.

[0023] The working principle and use process of the present invention are as follows: first, the product to be inspected is passed through the vertical frame 401 and the rotating ring 303, and then the gasket 307, the cross rod 305 and the clamping wheel 306 are pulled to slide along the cross shaft sleeve 304 through the telescopic characteristics of the tension spring 309. The position of the clamping wheel 306 is adjusted as needed to facilitate the clamping and positioning of the product, and the clamping wheel 306 on another rotating ring 303 is coordinated and staggered to facilitate the clamping of the product from different directions, thereby further improving the stability of the product. In addition, the adjusting ring 308 is rotated and moved along the outer side of the cross sleeve 304, so as to change the distance between the adjusting ring 308 and the gasket 307, so as to facilitate the adjustment of the elastic force of the tensioning spring 309 as needed, adjust the clamping force, increase the adaptability, and prevent the excessive pressure from causing damage to the product; Next, the electric telescopic rod 404 is started to push the two concave plates 402 inside the vertical frame 401 to slide, thereby changing the distance between the two concave plates 402, so as to facilitate the clamping and fixing of products of different sizes. Then, the rotary motor 406 is started to drive the conveying roller 403 inside one concave plate 402 to rotate. At the same time, the turntable 407, the traction rod 408, the sleeve 409 and the transmission disc 411 cooperate to form a transmission assembly, which further transmits power and pulls the conveying roller 403 inside the other concave plate 402 to rotate synchronously in the opposite direction, pushing the products to move at a uniform speed, so as to facilitate the conveying of the products. Next, the product passes through the interior of the fixing ring 510 at a uniform speed, and the weld on the product is inspected by the full-focus detection probe 512 at the same time, which improves convenience. In addition, the rotating push rod 511 pushes the full-focus detection probe 512 to move, and the anti-deflection rod 514 is used to limit the distance between the two full-focus detection probes 512, and the accuracy of the full-focus detection probe 512 is adjusted, which further increases the accuracy of the detection; In addition, when conveying a product with a long length, the bidirectional screw 502 is rotated to push the two counterweights 503 to move synchronously and oppositely inside the horizontal frame 501, and through the cooperation of the limit rod 504, the splicing plate 505 and the fixed cylinder 506 are pushed to move, and then the lifting rod 507 is rotated to push the supporting plate 508 up and down, and the height of the supporting plate 508 is changed as needed, which is convenient for lifting the product, ensuring the stability of the product during transportation and preventing it from tipping over; Finally, when an annular detection is required, the electric telescopic rod 404 is controlled to retract to release the clamping of the product, and then the dual-axis motor 310 is started, and the driving gear 312 is driven to rotate through the cooperation of the cross bar 311, and the power is further transmitted through the cooperation of the driven gear 313 and the gear ring 314, pushing the two rotating rings 303 to rotate, forcing the rotating rings 303 to rotate with the product through the clamping wheel 306, so as to facilitate the full-focus detection probe 512 to perform annular detection on the weld on the product.

[0024] Finally, it should be noted that the above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A pipeline weld inspection system based on total focusing technology, comprising a fixing frame (1), characterized in that: The bottom end of the fixing frame (1) is symmetrically and equidistantly clamped with supporting legs (2), and a clamping and rotating mechanism (3) is provided at one side of the top end of the fixing frame (1), and the clamping and rotating mechanism (3) comprises a pad (301); A backing plate (301) is installed on one side of the top of the fixing frame (1), the top of the backing plate (301) is clamped with a limiting frame (302), and a rotating ring (303) is rotatably connected between two adjacent limiting frames (302), a cross shaft sleeve (304) is movably connected to the outside of the rotating ring (303) at equal intervals, a cross shaft sleeve (304) is movably connected to the inside of the cross shaft sleeve (304), and a clamping wheel (306) is installed at one end of the cross shaft sleeve (305) at a position corresponding to the inside of the rotating ring (303); A gasket (307) is clamped on the other end of the cross rod (305), an adjustment ring (308) is sleeved on the outside of the cross shaft sleeve (304) via a threaded sleeve, and a tensioning spring (309) is clamped between the adjustment ring (308) and the gasket (307); A dual-axis motor (310) is mounted at the bottom end of the fixed frame (1), a cross bar (311) is clamped at one end of the dual-axis motor (310), a driving gear (312) is symmetrically sleeved at an outer side of the cross bar (311) corresponding to a bottom position of the pad (301), a driven gear (313) is rotatably connected at one end of the limiting frame (302) located on both sides of the pad (301) corresponding to a top position of the driving gear (312), and a gear ring (314) is sleeved at the outer side of the rotating ring (303).

2. According to claim 1, a pipeline weld detection system based on total focusing technology is characterized in that: A rubber sleeve is sleeved on the outside of the clamping wheel (306), the cross rods (305) on the two rotating rings (303) are staggered, and the inner diameters and outer diameters of the two rotating rings (303) are equidistant.

3. According to claim 1, a pipeline weld detection system based on total focusing technology is characterized in that: The outer diameter of the gasket (307) is equal to the outer diameter of the adjustment ring (308), the outer side of the adjustment ring (308) is evenly provided with anti-slip grooves, and the inner diameter of the tension spring (309) is greater than the outer diameter of the cross shaft sleeve (304).

4. According to claim 1, a pipeline weld detection system based on total focusing technology is characterized in that: A notch is provided at the bottom end of the fixing frame (1) at a position corresponding to the top of the dual-axis motor (310); a fixing block is clamped at the bottom end of the fixing frame (1) at a position corresponding to the outside of the cross bar (311); the inner wall of the fixing block is rotatably connected to the outside of the cross bar (311); and the driving gear (312), the driven gear (313) and the gear ring (314) are meshed with each other.

5. The pipeline weld detection system based on total focusing technology according to claim 2 is characterized in that: A conveying and adjusting mechanism (4) is symmetrically arranged on both sides of the top of the fixing frame (1), and the conveying and adjusting mechanism (4) comprises a vertical frame (401); Vertical frames (401) are symmetrically connected to both sides of the top of the fixed frame (1), and the top and bottom of the vertical frame (401) are movably connected to concave plates (402), and the adjacent ends of the two concave plates (402) are rotatably connected to conveying rollers (403), and the opposite ends of the two conveying rollers (403) are symmetrically connected to electric telescopic rods (404), and one end of one of the concave plates (402) is installed with a rotating motor (406); One end of each of the two concave plates (402) is rotatably connected to a rotating disk (407), and one end of the concave plate (402) located at the top is rotatably connected to a transmission disk (411) at a position corresponding to the top of the rotating disk (407), one end of the rotating disk (407) located at the bottom is rotatably connected to a traction rod (408), one end of the transmission disk (411) is rotatably connected to a sleeve (409) at a position corresponding to the outside of the traction rod (408), and a positioning pin (410) is threadedly connected to the outside of the sleeve (409), and a transmission gear (405) is fixedly sleeved on the outside of the rotating disk (407) located at the top and the outside of the transmission disk (411).

6. The pipeline weld inspection system based on total focusing technology according to claim 5 is characterized in that: Both ends of the vertical frame (401) are provided with sliding grooves, and both ends of the concave plate (402) are provided with sliding blocks at positions corresponding to the inside of the sliding grooves. The electric telescopic rod (404) and the rotating motor (406) are powered by an external power supply.

7. The pipeline weld inspection system based on total focusing technology according to claim 5 is characterized in that: One end of the traction rod (408) passes through the sleeve (409), and one end of the positioning pin (410) passes through the sleeve (409) and fits tightly with one end of the traction rod (408). Anti-slip grooves are provided on the outside of the positioning pin (410) and the traction rod (408), and the two transmission gears (405) mesh with each other.

8. The pipeline weld inspection system based on total focusing technology according to claim 7 is characterized in that: The tops of the two vertical frames (401) are each provided with an extended support and detection mechanism (5), and the extended support and detection mechanism (5) comprises a horizontal frame (501); The tops of the two vertical frames (401) are connected to the horizontal frames (501) by bolts, the central position of the horizontal frames (501) is rotatably connected to a bidirectional screw rod (502), the outer side of the bidirectional screw rod (502) is symmetrically sleeved with a counterweight block (503) at a position corresponding to the inside of the horizontal frame (501) by threads, the two counterweight blocks (503) are symmetrically clamped with a limit rod (504) at opposite ends, the other end of the limit rod (504) is clamped with a splicing plate (505), both ends of the splicing plate (505) are clamped with a fixing tube (506), the inner wall of the fixing tube (506) is connected to a lifting rod (507) by threads, and the bottom ends of the two lifting rods (507) located on the same side are rotatably connected to a supporting plate (508); Vertical plates (509) are clamped at positions on one side of the vertical frame (401) at both ends of the horizontal frame (501), and fixing rings (510) are clamped at the bottom ends of the two vertical plates (509). Push rods (511) are threadedly connected to both ends of the fixing ring (510), and full-focus detection probes (512) are rotatably connected to adjacent ends of the two push rods (511). Lugs (513) are symmetrically clamped on the outside of the full-focus detection probes (512), and an anti-deflection rod (514) is clamped at one end of the lugs (513).

9. The pipeline weld inspection system based on total focusing technology according to claim 8 is characterized in that: The threads at the two ends of the outer side of the bidirectional screw (502) rotate in opposite directions, and the outer side of the bidirectional screw (502) is connected to the inner wall of the counterweight (503) through threads. Grooves are provided at both ends of the counterweight (503), and a limit plate is clamped on the inner wall of the transverse frame (501) at the position corresponding to the groove.

10. The pipeline weld inspection system based on total focusing technology according to claim 8, characterized in that: The full-focus detection probe (512) is powered by an external power supply, the outer side of the anti-deflection rod (514) is movably connected to the outer side of the fixing ring (510), and a knob is clamped on one end of the push rod (511).

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