Automatic detection device for welding seam of spiral welding pipe

Abstract

The utility model discloses an automatic detection device for a welding seam of a spiral welding pipe, and relates to the field of automatic detection devices for welding seams of welding pipes. The device comprises a mounting rack, the mounting rack is internally provided with a detection mechanism and a correction assembly, and the device is provided with the correction assembly, a replacement suite, a bottom frame, an annular frame, an annular groove and a sheet type pressure sensor, and through the combined design of the mounting rack, the detection mechanism, the correction assembly and the replacement suite, the detection accuracy is improved. Comprehensive and automatic detection of the welding seam of the spiral welding pipe is achieved, the design of an annular frame and a sheet type pressure sensor in the correction assembly and the combined design of a sleeve, a piston piece, a first abutting rod, a second abutting rod and a spring form an accurate pressure sensing mechanism, the pressure condition of the surface of the spiral welding pipe can be fed back in real time, and the detection accuracy is improved. Therefore, interference factors such as reinforcing layers, incomplete penetration, lining plates and weld beading can be detected, and detection data of the detection mechanism can be corrected.

Description

TECHNICAL FIELD

[0001] The utility model relates to the automatic detection device field of pipe weld, concretely is the automatic detection device of spiral weld pipe weld. BACKGROUND

[0002] The spiral weld pipe weld automatic detection device is a nondestructive testing equipment integrated with advanced sensing technology, image processing technology, artificial intelligence algorithm and mechanical automation technology, which is based on the working principle of ultrasonic flaw detection technology, drives the ultrasonic probe to automatically walk along the weld of the spiral weld pipe through a mechanical system, emits and receives ultrasonic signals reflected from the weld, and automatically identifies defects in the weld, such as cracks, slag inclusion and incomplete fusion, through analysis and processing of these signals, so as to realize accurate and efficient detection of the weld of the spiral weld pipe and ensure that the weld quality meets relevant standards and requirements.

[0003] The current spiral weld pipe weld automatic detection device may cause misjudgment or missed detection due to the influence of interference echoes such as reinforcement, incomplete penetration, backing plate and welding tumor during weld detection, which may cause qualified welds to be incorrectly judged as unqualified, thereby increasing unnecessary rework and cost, and manual judgment is required. Missed detection may allow defective welds to pass the detection and cause quality problems in subsequent use, and even cause safety accidents. UTILITY MODEL CONTENTS

[0004] Therefore, the utility model discloses a spiral weld pipe weld automatic detection device to solve the technical problems that qualified welds are incorrectly judged as unqualified due to the influence of interference echoes such as reinforcement, incomplete penetration, backing plate and welding tumor during weld detection, thereby increasing unnecessary rework and cost, and missed detection may allow defective welds to pass the detection and cause quality problems in subsequent use, and even cause safety accidents.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a spiral weld pipe weld automatic detection device, comprising a mounting frame, a detection mechanism and a correction assembly are installed in the mounting frame, a replacement kit is installed on the correction assembly, and the replacement kit and the correction assembly are provided in sets;

[0006] The correction assembly comprises a base frame, an annular frame is installed on the top of the base frame, an annular groove is formed in the inner side of the annular frame, a thin-plate pressure sensor is bonded in the annular groove, a slot is formed in one end of the annular frame, and the slot is inserted with the replacement kit;

[0007] The replacement kit comprises an insertion plate, a screw hole is formed in the bottom front end of the insertion plate, a sleeve is formed in the middle of the bottom of the insertion plate, a through hole is formed in the top of the insertion plate, and the through hole is formed at the axis of the sleeve, a spring groove is formed in the inside of the sleeve, and a piston sheet is arranged in the spring groove, a first abutting rod is arranged at the bottom of the piston sheet, the first abutting rod abuts against the spiral welded pipe, a second abutting rod is arranged at the top of the piston sheet, the second abutting rod penetrates through the through hole and abuts against the sheet type pressure sensor, a spring is arranged outside the second abutting rod, and the two ends of the spring abut against the sleeve and the piston sheet respectively.

[0008] By adopting the above technical scheme, high flexibility and adaptability are provided, so that the device can be adjusted and optimized according to different weld characteristics and detection requirements, thereby improving the accuracy and efficiency of detection.

[0009] Further, the insertion slot is provided with a plurality of insertion slots, and the plurality of insertion slots are arranged at equal intervals in a ring array, and the number of the replacement kits is the same as the number of the insertion slots.

[0010] By adopting the above technical scheme, a plurality of insertion slots are arranged at equal intervals on the ring-shaped frame, allowing a plurality of replacement kits to be installed. This multi-slot design allows the device to use multiple kits simultaneously or alternately to adapt to different weld shapes, positions and sizes, further enhancing the versatility and practicality of the device.

[0011] Further, a screw is screwed in the screw hole, and the screw is used to fix the replacement kit in the insertion slot.

[0012] By adopting the above technical scheme, the replacement kit is fixed in the insertion slot by the screw, ensuring the stability and reliability of the kit. This fixing method is simple and easy to implement, and can effectively prevent the kit from loosening or shifting during detection, thereby ensuring the stability and consistency of detection.

[0013] Further, the detection mechanism comprises a gas cylinder, the gas cylinder is arranged above the inside of the mounting frame, and a first mounting seat is arranged at the bottom output end of the gas cylinder.

[0014] By adopting the above technical scheme, the detection mechanism comprises a gas cylinder, and the position of the first mounting seat can be adjusted. This gas cylinder driven design allows the detection mechanism to quickly and accurately adjust its position to adapt to spiral welded pipes of different diameters, improving the flexibility and efficiency of detection.

[0015] Further, a second mounting seat is arranged below the inside of the mounting frame, and a lead screw groove is formed in the first mounting seat and the second mounting seat.

[0016] By adopting the technical scheme, the screw rod slot is arranged on the first mounting seat and the second mounting seat, and space is provided for the installation and movement of the screw rod.

[0017] Further, the first screw rod and the second screw rod are arranged in the screw rod slot, and the threads of the first screw rod and the second screw rod are arranged in a mirror image structure.

[0018] By adopting the technical scheme, the screw rod designed in the mirror image structure makes the movement of the transmission seat more stable and accurate, and the movement speed and direction can be adjusted as needed.

[0019] Further, the first mounting seat and the second mounting seat are provided with a motor on one side, and the output end of the motor is connected with the first screw rod.

[0020] By adopting the technical scheme, the motor drives the first screw rod to rotate, and the automatic movement of the detection mechanism is realized. The automatic design reduces the intervention of manual operation, improves the detection efficiency, and reduces the error and risk caused by human factors.

[0021] Further, the first screw rod and the second screw rod are arranged in the screw rod slot, and the threads of the first screw rod and the second screw rod are arranged in a mirror image structure.

[0022] By adopting the technical scheme, the mounting plate can be fine-tuned within a certain range to adapt to the slight fluctuation and unevenness of the weld, and the stable contact between the detection sensor and the weld is maintained, and the accuracy and reliability of the detection are improved.

[0023] Further, the first screw rod and the second screw rod are arranged in the screw rod slot, and the threads of the first screw rod and the second screw rod are arranged in a mirror image structure.

[0024] By adopting the technical scheme, the sound wave sensor can flexibly adjust its angle and position to adapt to the curvature change of the weld and different detection requirements, and the comprehensive and accurate detection of the weld is realized.

[0025] Further, one of the universal ball wheels is provided with a photoelectric sensor on one side.

[0026] By adopting the technical scheme, the design provides high flexibility and adaptability, so that the device can be adjusted and optimized according to different weld characteristics and detection requirements, and a stable support platform is provided for the detection mechanism to effectively abut the spiral welded pipe.

[0027] In summary, the utility model mainly has the following beneficial effects:

[0028] The utility model discloses a rectification assembly, replacement kit, chassis, ring frame, annular groove, thin slice pressure sensor are set up, and through the combination design of mounting bracket, detection mechanism, rectification assembly and replacement kit, realize the comprehensive, automatic detection of the spiral weld pipe weld, wherein the ring frame and thin slice pressure sensor design in rectification assembly can accurately perceive the pressure change of weld surface, provide accurate data for defect detection, and the combination design of sleeve, piston sheet, first abutment rod, second abutment rod and spring forms an accurate pressure sensing mechanism, can real-time feedback the pressure condition of spiral weld pipe surface, so that the interference factor such as reinforcing layer, incomplete penetration, backing plate, welding tumor can be detected, and the detection data of detection mechanism is corrected, the data deviation of detection mechanism detected is corrected through pressure data, in addition, through the replacement kit of quick dismounting and replacement, can efficiently replace the damaged or incompatible component, improve the practicality of rectification assembly;

[0029] The utility model discloses a detection mechanism, first mounting seat, second mounting seat, motor, screw groove are set up, wherein through the distance between first mounting seat and second mounting seat can be adjusted through the cylinder, thereby adapting to the spiral weld pipe of different diameters, and through photoelectric sensor can monitor pipe diameter, simultaneously through universal ball wheel, can effectively butt against spiral weld pipe, reduced because pipe diameter mismatch and triggered equipment forced contact or collision, reduced the wear and tear and damage risk of equipment parts, prolonged the service life of equipment, and the operator does not need to have rich professional knowledge or experience, can through simple operation adjustment equipment to adapt to the weld pipe of different pipe diameter, greatly simplified the operation process, reduced the operation difficulty. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0031] Figure 2 It is the three-dimensional structure schematic diagram of the utility model from the view;

[0032] Figure 3 It is the rectification assembly partial three-dimensional structure schematic diagram of the utility model;

[0033] Figure 4 It is the replacement kit partial three-dimensional structure schematic diagram of the utility model.

[0034] In the diagram: 1. Mounting bracket; 2. Detection mechanism; 201. Cylinder; 202. First mounting base; 203. Second mounting base; 204. Motor; 205. Screw groove; 206. First screw; 207. Second screw; 208. Bracket; 209. Damping rod; 210. Mounting plate; 211. Universal ball wheel; 212. Acoustic sensor; 213. Photoelectric sensor; 3. Correction assembly; 301. Base frame; 302. Ring frame; 303. Ring groove; 304. Thin-film pressure sensor; 305. Slot; 4. Replacement kit; 401. Insert plate; 402. Screw hole; 403. Sleeve; 404. Spring groove; 405. Piston plate; 406. First abutment rod; 407. Spring; 408. Second abutment rod; 409. Through hole; 5. Spiral welded pipe. Detailed Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. Example 1:

[0036] Automatic inspection device for spiral welded pipe weld seams, such as Figures 1-4 As shown, the assembly includes a mounting frame 1, within which a detection mechanism 2 and a correction component 3 are installed. A replacement kit 4 is mounted on the correction component 3, and the replacement kit 4 is part of the correction component 3 assembly. The correction component 3 includes a base frame 301, with an annular frame 302 mounted on its top. An annular groove 303 is formed on the inner side of the annular frame 302, within which a thin-film pressure sensor 304 is bonded. A slot 305 is formed at one end of the annular frame 302, and the slot 305 is inserted into the replacement kit 4. The replacement kit 4 includes an insert plate 401, with a screw hole 402 at the bottom front end, a sleeve 403 in the middle of the bottom of the insert plate 401, and a through hole 409 at the top of the insert plate 401. A through hole 409 is formed at the axis of the sleeve 403. A spring groove 404 is formed inside the sleeve 403, and a piston plate 405 is disposed within the spring groove 404. A first abutting rod 406 is disposed at the bottom of the piston plate 405, abutting against the spiral welded pipe 5. A second abutting rod 408 is disposed at the top of the piston plate 405, passing through the through hole 409 and abutting against the thin-film pressure sensor 304. A spring 407 is disposed on the outside of the second abutting rod 408, with both ends of the spring 407 abutting against the sleeve 403 and the piston plate 405 respectively. The mounting bracket 1 integrates the detection mechanism 2 and the correction assembly 3, enabling comprehensive detection and adjustment of the spiral welded pipe weld seam. The replaceable kit 4 on the correction assembly 3 allows the device to be quickly replaced and adapted to different weld seam characteristics, improving the flexibility and accuracy of the detection.

[0037] Referring to Figure 1 , Figure 2 , Figure 3 , Figure 4 , the plurality of slots 305 are arranged in a ring array at equal intervals, the number of replacement kits 4 is the same as the number of slots 305, and the design of the ring array of slots 305 arranged at equal intervals allows the replacement kits 4 to be evenly distributed on the correction assembly 3, ensuring that the welds at different positions can be effectively abutted and detected during detection, improving the comprehensiveness and consistency of detection.

[0038] Referring to Figure 1 , Figure 2 , Figure 3 , Figure 4 , the screw hole 402 is screwed with a bolt, and the bolt is used to fix the replacement kit 4 in the slot 305. Through the cooperation of the screw hole 402 and the bolt, the stable fixation of the replacement kit 4 in the slot 305 is realized. This fixing method is simple and reliable, which ensures that the replacement kit 4 will not loosen or displace during detection, ensuring the stability and accuracy of detection. Example two:

[0039] Referring to Figure 1 , Figure 2 , Figure 3 , Figure 4 , the detection mechanism 2 includes a cylinder 201, which is arranged above the inside of the mounting frame 1. The bottom output end of the cylinder 201 is provided with a first mounting seat 202. The introduction of the cylinder 201 allows the detection mechanism 2 to be adjusted up and down according to the diameter and position of the spiral welded pipe. The first mounting seat 202 as the output end of the cylinder 201 provides stable support for the installation of the detection sensor, ensuring the accuracy and reliability of detection.

[0040] Referring to Figure 1 , Figure 2 , Figure 3 , Figure 4 , the inside of the mounting frame 1 is provided with a second mounting seat 203 below, and the first mounting seat 202 and the second mounting seat 203 are both provided with a lead screw groove 205. The second mounting seat 203 is arranged together with the first mounting seat 202 to form a support structure of the detection mechanism. The lead screw groove 205 provides space for the installation and movement of the lead screw, allowing the detection mechanism to move smoothly along the axial direction of the spiral welded pipe, achieving comprehensive detection of the weld.

[0041] Referring to Figure 1 , Figure 2 , Figure 3 , Figure 4, the first screw rod 206 and the second screw rod 207 are provided in the screw rod groove 205, the threads of the first screw rod 206 and the second screw rod 207 are provided in a mirror structure, the first screw rod 206 and the second screw rod 207 are connected, and the mirror structure of the first screw rod 206 and the second screw rod 207 is designed so that the transmission seat can be kept stable and accurate during movement. This structure not only improves the detection accuracy, but also enhances the stability and durability of the device.

[0042] Referring to Figure 1 , Figure 2 , Figure 3 , Figure 4 , one side of the first mounting seat 202 and the second mounting seat 203 is provided with a motor 204, the output end of the motor 204 is connected with the first screw rod 206, and the introduction of the motor 204 realizes the automatic movement of the detection mechanism. The first screw rod 206 is driven to rotate by the motor 204, so that the transmission seat can move stably along the screw rod groove 205, improving the detection efficiency and accuracy.

[0043] Referring to Figure 1 , Figure 2 , Figure 3 , Figure 4 , the first screw rod 206 and the second screw rod 207 are respectively screwed with two transmission seats, and the transmission seat is provided with a support 208, the top of the support 208 is rotatably connected with a mounting plate 210 through a damping rod 209, and the design of the damping rod 209 enables the mounting plate 210 to be fine-tuned within a certain range to adapt to the slight fluctuations and unevenness of the weld. This design not only improves the flexibility of detection, but also ensures stable contact between the detection sensor and the weld, improving the accuracy of detection.

[0044] Referring to Figure 1 , Figure 2 , Figure 3 , Figure 4 , the mounting plate 210 is provided with two universal ball wheels 211, and a sound wave sensor 212 is installed between the two universal ball wheels 211, the introduction of the universal ball wheel 211 enables the sound wave sensor 212 to flexibly adjust its angle and position to adapt to the curvature change of the weld and different detection requirements. This design not only improves the comprehensiveness of detection, but also enhances the adaptability and practicality of the device.

[0045] Referring to Figure 1 , Figure 2 , Figure 3 , Figure 4 Figure 1 Figure 2 Figure 3 Figure 4 Figure 1 Figure 2 Figure 3 Figure 4 Figure 1 Figure 2 Figure 3 Figure 4One side of one of the universal ball wheels 211 is provided with a photoelectric sensor 213, and the photoelectric sensor 213 provides accurate weld position positioning function for the detection mechanism.

[0046] The implementation principle of the embodiment is that: first, the cylinder 201 is started, the distance between the first mounting seat 202 and the second mounting seat 203 is adjusted to adapt to the diameter of the spiral welded pipe, the motor 204 is started, and the first lead screw 206 and the second lead screw 207 are driven to rotate. Since the threads of the first lead screw 206 and the second lead screw 207 are mirror image structures, the two transmission seats will move in opposite directions, thereby driving the bracket 208 and the mounting plate 210 to move along the axial direction of the spiral welded pipe. In the moving process, the acoustic sensor 212 and the photoelectric sensor 213 will collect the data of the weld of the spiral welded pipe in real time. The acoustic sensor 212 detects defects in the weld, such as cracks and slag, by using the reflection characteristics of ultrasonic waves; the photoelectric sensor 213 is used for auxiliary positioning of the weld position, and the design of the universal ball wheel 211 enables the mounting plate 210 to flexibly adjust the angle to adapt to the curvature change of the spiral welded pipe, so that the acoustic sensor 212 and the photoelectric sensor 213 always maintain appropriate contact with the surface of the weld pipe;

[0047] After the spiral welded pipe 5 is detected by the detection mechanism 2, the spiral welded pipe 5 passes through the annular frame 302, and the surface thereof is in contact with the first abutting rod 406 of the replacement set 4. If the spiral welded pipe 5 has a reinforcing layer, incomplete penetration, a backing plate, and a weld tumor, the first abutting rod 406 will be subjected to pressure, and the pressure is transmitted to the second abutting rod 408 through the piston sheet 405. The second abutting rod 408 is in contact with the sheet type pressure sensor 304, and converts the pressure signal into an electric signal. At this time, the control system can judge the state of the outer surface of the spiral welded pipe according to the size of the electric signal, so as to correct the data error of the detection mechanism 2.

[0048] Although the embodiments of the utility model have been shown and described, the specific embodiments are only an explanation of the utility model, and are not a limitation of the utility model. The specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner, and those skilled in the art can make modifications, replacements and variations of the embodiments without creative contribution after reading the specification without departing from the principles and purposes of the utility model. However, as long as it is within the scope of the claims of the utility model, it is protected by the patent law.

Claims

1. An automatic inspection device for spiral welded pipe weld seams, characterized in that: Includes a mounting frame (1), in which a detection mechanism (2) and a correction component (3) are installed, and a replacement kit (4) is installed on the correction component (3), and the replacement kit (4) is set together with the correction component (3); The correction assembly (3) includes a base frame (301), an annular frame (302) is mounted on the top of the base frame (301), an annular groove (303) is provided on the inner side of the annular frame (302), a thin-film pressure sensor (304) is adhered in the annular groove (303), and a slot (305) is provided at one end of the annular frame (302), the slot (305) is inserted into the replacement kit (4); The replacement kit (4) includes a insert plate (401), a screw hole (402) at the bottom front end of the insert plate (401), a sleeve (403) at the bottom center of the insert plate (401), a through hole (409) at the top of the insert plate (401), and the through hole (409) is located at the axis of the sleeve (403). A spring groove (404) is provided inside the sleeve (403), and a piston plate (405) is provided in the spring groove (404). The bottom of the piston plate (405) is provided with a first abutting rod (406), which abuts against the spiral welded pipe (5). The top of the piston plate (405) is provided with a second abutting rod (408), which passes through the through hole (409) and abuts against the thin-film pressure sensor (304). A spring (407) is provided on the outside of the second abutting rod (408), and the two ends of the spring (407) abut against the sleeve (403) and the piston plate (405) respectively.

2. The automatic detection device for spiral welded pipe weld seams according to claim 1, characterized in that: The slots (305) are provided in multiple ways, and the multiple slots (305) are arranged in a circular array at equal intervals. The number of replacement kits (4) is the same as the number of slots (305).

3. The automatic detection device for spiral welded pipe weld seams according to claim 1, characterized in that: A bolt is screwed into the screw hole (402), and the bolt is used to fix the replacement kit (4) into the slot (305).

4. The automatic detection device for spiral welded pipe weld seams according to claim 1, characterized in that: The detection mechanism (2) includes a cylinder (201), which is located inside the mounting bracket (1) and has a first mounting seat (202) at its bottom output end.

5. The automatic detection device for spiral welded pipe weld seams according to claim 4, characterized in that: The mounting bracket (1) has a second mounting seat (203) located at the bottom inside. Both the first mounting seat (202) and the second mounting seat (203) have screw grooves (205).

6. The automatic detection device for spiral welded pipe weld seams according to claim 5, characterized in that: The lead screw groove (205) is provided with a first lead screw (206) and a second lead screw (207). The threads of the first lead screw (206) and the second lead screw (207) are arranged in a mirror structure, and the first lead screw (206) and the second lead screw (207) are connected to each other.

7. The automatic detection device for spiral welded pipe weld seams according to claim 4, characterized in that: A motor (204) is provided on one side of the first mounting base (202) and the second mounting base (203), and the output end of the motor (204) is connected to the first lead screw (206).

8. The automatic detection device for spiral welded pipe weld seams according to claim 7, characterized in that: Two transmission seats are screwed onto the first lead screw (206) and the second lead screw (207), and a bracket (208) is installed on the transmission seat. The top of the bracket (208) is rotatably connected to the mounting plate (210) through the damping rod (209).

9. The automatic detection device for spiral welded pipe weld seams according to claim 8, characterized in that: Two omnidirectional ball wheels (211) are installed on the mounting plate (210), and an acoustic wave sensor (212) is installed between the two omnidirectional ball wheels (211).

10. The automatic detection device for spiral welded pipe weld seams according to claim 9, characterized in that: A photoelectric sensor (213) is provided on one side of one of the omnidirectional ball wheels (211).

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