A high-frequency welded pipe size parameter on-line visual detection device

Abstract

The present application relates to pipe parameter detection equipment technical field, the present application discloses a kind of high-frequency welded pipe size parameter online visual detection device, including guide structure, detection structure and adapter structure, the detection structure is detachably arranged on guide structure, the adapter structure is detachably arranged on guide structure, the adapter structure can bear multiple guide structure and detection structure.This device can complete visual imaging and size acquisition simultaneously in workpiece conveying process, compared with traditional offline sampling measurement, can improve detection coverage, timely find size deviation, reduce the generation probability of batch unqualified product;At the same time, the thickness, width data of plate base material can be converted to obtain the wall thickness, diameter and other parameters of high-frequency welded pipe after forming, realize the integrated monitoring of base material and finished product size, improve the quality control efficiency of production link to a certain extent.

Description

Technical Field

[0001] This invention relates to the field of pipe parameter testing equipment, specifically to an online visual inspection device for the dimensional parameters of high-frequency welded pipes. Background Technology

[0002] High-frequency welded pipes, as core products in the pipe processing field, are widely used in industries such as oil and gas transportation, municipal engineering, machinery manufacturing, and steel structures. The accuracy of key parameters such as outer diameter, wall thickness, ovality, and cross-sectional dimensions directly determines the quality and safety of the pipes. In continuous and high-speed production lines for high-frequency welded pipes, traditional dimensional inspection methods often rely on single offline sampling measurements, which cannot achieve real-time monitoring of the entire production process. This can easily lead to problems such as dimensional deviations, batch non-conformities, and missed defects, seriously affecting production efficiency and product qualification rates. Furthermore, the equipment is mostly an independent single structure, which cannot achieve multi-unit combination and arrangement, making it difficult to meet the needs of multi-station, assembly line continuous inspection. Summary of the Invention

[0003] The purpose of this invention is to provide an online visual inspection device for the dimensional parameters of high-frequency welded pipes, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an online visual inspection device for the dimensional parameters of high-frequency welded pipes, comprising a conveying structure, a detection structure, and a transfer structure. The conveying structure is fixed to the production equipment, serving to assist in conveying workpieces and supporting the detection structure. The detection structure is detachably mounted on the conveying structure and is used to detect material dimensional data through imaging. The transfer structure is detachably mounted on the conveying structure and can support multiple conveying structures and detection structures, realizing ground support and arrangement of the conveying structures.

[0005] Preferably, the guiding structure includes a clamping unit and a guiding unit. The guiding unit is detachably mounted on the clamping unit. The clamping unit is used to be directly installed on existing production equipment. The guiding unit is used to provide power, assist in conveying and feeding materials, and can fit plates and pipes of different widths.

[0006] Preferably, the clamping unit includes a first clamp, a second clamp, a pair of limiting rods, and a pair of clamping bolts; one end of the first clamp is concave and the other end is straight; the second clamp is L-shaped, one end of the second clamp is movably disposed on the first clamp, and the second clamp and the first clamp form an I-shaped structure after docking; one end of each pair of limiting rods is symmetrically disposed at one end of the second clamp, and the other end of each limiting rod movably passes through the middle of the first clamp; one end of each pair of clamping bolts is screwed into the middle of the first clamp, and the clamping bolts pass through the first clamp; the pair of clamping bolts are screwed into one end of the second clamp.

[0007] Preferably, the guiding unit includes a shaft, a shaft frame, a pair of guide rollers, an adjusting rod, a pair of fastening bolts, a first motor, a pair of first pulleys, and a first transmission belt; one end of the shaft is detachably screwed into the middle of the first clamp and located between a pair of limiting rods; one end of the shaft frame is fixedly screwed onto the other end of the shaft, and a first bearing is embedded in the middle of the other end of the shaft frame; one end of each pair of guide rollers is tapered, and the other end is a round tube; each pair of guide rollers has a through hole in the middle; the pair of guide rollers are symmetrically arranged, and the other end of one of the guide rollers passes through the middle of the first bearing; both ends of the adjusting rod are respectively inserted into the through holes in the middle of the guide rollers; the pair of fastening bolts are respectively screwed onto the side wall of the other end of the guide rollers and tightened against the adjusting rod; the first motor is fixedly mounted on one end of the shaft frame; the pair of first pulleys are respectively fixedly mounted on the other end of one of the guide rollers and the drive end of the first motor; and the first transmission belt is movably fitted between the first pulleys.

[0008] Preferably, the detection structure includes a flipping unit and a detection unit; the flipping unit is movably mounted on a shaft, and the detection unit is fixedly mounted on the flipping unit, wherein the flipping unit is used to fit the size detection of different materials and parts, and drives the detection unit to change direction, and the detection unit is used to realize the size detection of materials through vision.

[0009] Preferably, the flipping unit includes a support platform, a locking bolt, a wheel axle, a washer wheel, a base, a second motor, a pair of second pulleys, and a second transmission belt. The support platform is a convex frustum structure with a through opening in the middle. A second bearing is embedded in the through opening. The support platform is mounted on the middle of the shaft through the second bearing and can rotate through the second bearing. The locking bolt is screwed into the side wall of the support platform and presses against the side wall of the shaft. The locking bolt is located below the second bearing. One end of the wheel axle is screwed into the side wall of the shaft and is located below the support platform. The washer wheel is movably mounted on the other end of the wheel axle and fits against the lower wall of the support platform. The washer wheel can rotate. The base is detachably mounted on a first clamp. The second motor is fixedly mounted on the base. A pair of second pulleys are respectively fixedly mounted on the drive end of the second motor and one end of the support platform. The second transmission belt is movably mounted between the second pulleys.

[0010] Preferably, the detection unit includes a first telescopic arm, a second telescopic arm, a positioning bolt, a third motor, an electric slide rail, and a detection camera body; one end of the first telescopic arm is fixedly mounted on the side wall of the support platform, one end of the second telescopic arm is movably fitted onto the other end of the first telescopic arm, the positioning bolt is screwed onto the upper wall of one end of the second telescopic arm and is tightened against the first telescopic arm for fixation, the third motor is mounted on the lower wall of the other end of the second telescopic arm and the drive end of the third motor movably passes through the other end of the second telescopic arm, one end of the electric slide rail is fixedly mounted on the drive end of the third motor, and the detection camera body is fixedly mounted on the electric slide rail and moves up and down via the electric slide rail.

[0011] Preferably, the adapter structure includes a base plate, a bracket, a mounting base, a pair of fourth bolts, a pair of fifth bolts, and a crossbar; the bracket is a T-shaped rod, one end of which is fixedly mounted on the middle of the upper wall of the base plate; the mounting base is L-shaped, and one side wall of the mounting base has a mounting groove that fits with the bracket; one end of the mounting base is fitted onto the bracket through the mounting groove; a transfer groove is formed through one side wall of the mounting base; the pair of fourth bolts are respectively screwed onto the rear side wall of one end of the mounting base, and the fourth bolts are tightened against the bracket; the pair of fifth bolts are respectively screwed onto the front side wall of one end of the mounting base, and the fifth bolts can pass through the transfer groove; the crossbar movably passes through the transfer groove of the mounting base, and the crossbar is fixed by the fifth bolts.

[0012] Preferably, the other end of the mounting base can be inserted into and fixed within one end of the first clamp, for supporting the guiding structure and the detection structure on the ground via the adapter structure.

[0013] Preferably, each end of the crossbeam can be fitted with a mounting base and is used to support multiple guide structures.

[0014] The present invention proposes an online visual inspection device for the dimensional parameters of high-frequency welded pipes, the advantages of which are as follows: 1. This device can simultaneously complete visual imaging and size acquisition during the workpiece conveying process. Compared with traditional offline sampling measurement, it can improve the detection coverage, detect size deviations in time, and reduce the probability of batch non-conforming products. At the same time, it can calculate the wall thickness, diameter and other parameters of the high-frequency welded pipe after forming by converting the thickness and width data of the substrate material, realize the integrated monitoring of the substrate and finished product size, and improve the quality control efficiency of the production process to a certain extent.

[0015] 2. The spacing between the guide rollers of the conveying unit can be flexibly adjusted by the adjustment rod, which can adapt to plates and pipes of different widths and thicknesses; the detection unit has the ability to adjust the length of the telescopic arm, adjust the electric lifting and circumferential angle, and, together with the orientation adjustment function of the flipping unit, can adjust the best imaging posture for different sized workpieces and different detection parts. It supports both the detection of the planar dimensions of plates and the detection of the cross-section of pipe openings, and has a wide range of applicable scenarios.

[0016] 3. The clamping unit can be directly clamped and fixed to the corresponding part of the existing production equipment without the need for major structural modifications to the original production line. The installation difficulty and cost are relatively low. With the help of the transfer structure, it can achieve an independent ground support layout. It can also connect multiple sets of guide units through the cross frame, which is convenient for building a multi-station continuous conveying and testing layout. It can be flexibly configured according to the actual space and capacity requirements of the production line.

[0017] 4. The guiding unit adopts an active roller drive structure to assist workpiece feeding, which can maintain stable conveying in accordance with the rhythm of the production line; the flipping unit forms a double rotation support through bearings and pads, with small shaking during rotation, which helps maintain the imaging clarity of the detection camera, reduces detection errors caused by equipment vibration, and ensures the consistency of dimensional detection data. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the first assembly structure of the present invention; Figure 2 This is a schematic diagram of the second assembly structure of the present invention; Figure 3 This is a schematic diagram of the disassembled guide structure of the present invention; Figure 4 This is a schematic diagram of the assembly structure of the guiding structure of the present invention; Figure 5 This is a schematic diagram of the disassembled detection structure of the present invention; Figure 6 This is a schematic diagram of the assembly structure of the detection structure of the present invention; Figure 7 This is a schematic diagram of the disassembled structure of the adapter structure of the present invention; Figure 8 for Figure 3 A magnified view of section A in the image.

[0019] In the diagram: 1. Guiding structure; 11. Clamping unit; 111. First clamp; 112. Second clamp; 113. Limiting rod; 114. Clamping bolt; 12. Guiding unit; 121. Shaft; 122. Shaft bracket; 123. Guide roller; 124. Adjusting rod; 125. Fastening bolt; 126. First motor; 127. Pulley; 128. First transmission belt; 2. Detection structure; 21. Tilting unit; 211. Bearing platform; 212. Locking bolt; 213. Axle; 214. Pad wheel; 215. Base. 216. Second motor, 217. Second pulley, 218. Second transmission belt, 22. Detection unit, 221. First telescopic arm, 222. Second telescopic arm, 223. Positioning bolt, 224. Third motor, 225. Electric slide rail, 226. Detection camera body, 3. Adapter structure, 31. Base plate, 32. Hanger, 33. Mounting seat, 34. Fourth bolt, 35. Fifth bolt, 36. Crossbar, 4. First bearing, 5. Second bearing, 6. Insertion hole, 7. Mounting slot, 8. Adapter slot. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figures 1-8 This invention provides a technical solution: an online visual inspection device for the dimensional parameters of high-frequency welded pipes, comprising a conveying structure 1, a detection structure 2, and a transfer structure 3. The conveying structure 1 is fixed on the production equipment to assist in conveying the workpiece and to support the detection structure 2. The detection structure 2 is detachably mounted on the conveying structure 1 and is used to detect the material dimensional data through imaging. The transfer structure 3 is detachably mounted on the conveying structure 1 and can support multiple conveying structures 1 and detection structures 2, realizing ground support and the arrangement of the conveying structures 1.

[0022] As a preferred embodiment, the guiding structure 1 further includes a clamping unit 11 and a guiding unit 12. The guiding unit 12 is detachably mounted on the clamping unit 11. The clamping unit 11 is used to be directly installed on existing production equipment, and the guiding unit 12 is used to provide power, assist in conveying and feeding materials, and can fit plates and pipes of different widths.

[0023] As a preferred embodiment, the clamping unit 11 further includes a first clamping seat 111, a second clamping seat 112, a pair of limiting rods 113, and a pair of clamping bolts 114. One end of the first clamping seat 111 is concave, and the other end is L-shaped. The second clamping seat 112 is L-shaped, with one end movably mounted on the first clamping seat 111, forming an I-shaped structure after docking. One end of each pair of limiting rods 113 is symmetrically positioned at one end of the second clamping seat 112, and the other end of each limiting rod 113 movably passes through the middle of the first clamping seat 111. One end of each pair of clamping bolts 114 is screwed into the middle of the first clamping seat 111, and the clamping bolts 114 pass through the first clamping seat 111. The pair of clamping bolts 114 are screwed into one end of each of the second clamping seats 112. When the clamping unit 11 is in operation… The concave end of the first clamp 111 is fitted with the L-shaped second clamp 112, so that the two symmetrically arranged limiting rods 113 on the second clamp 112 can be moved into the middle of the first clamp 111, realizing the guidance and radial limiting between the first clamp 111 and the second clamp 112, preventing them from shifting or twisting. By screwing on a pair of clamping bolts 114 that pass through the first clamp 111 and are threaded to the second clamp 112, the second clamp 112 can be driven to move closer to or away from the first clamp 111 along the direction of the limiting rods 113, so that the I-shaped structure formed by the docking of the first clamp 111 and the second clamp 112 is clamped in the corresponding part of the existing production equipment, completing the rapid fixing and positioning of the entire clamping unit 11. By unscrewing the clamping bolts 114 in the opposite direction, the clamping state can be released, realizing the disassembly and position adjustment of the clamping unit 11.

[0024] More specifically, the clamping unit 11 adopts an I-shaped clamping body formed by the docking of the first clamping seat 111 and the second clamping seat 112. With the guidance and limiting of the double limiting rods 113 and the synchronous clamping transmission of the double clamping bolts 114, it can ensure smooth movement without swaying during the clamping and adjustment process. After clamping and fixing, the overall structure has good torsional resistance and load-bearing stability, which can provide a stable installation foundation for the subsequent guide structure 1 and detection structure 2. At the same time, the clamping unit 11 can be directly clamped and fixed to the frame of the existing production equipment without the need for structural modifications such as drilling and welding to the original production line. The assembly and disassembly operations are simple, and it is convenient to flexibly adjust the installation position and number of devices according to the detection conditions.

[0025] As a preferred embodiment, the guiding unit 12 further includes a shaft 121, a shaft bracket 122, a pair of guide rollers 123, an adjusting rod 124, a pair of fastening bolts 125, a first motor 126, a pair of first pulleys 127, and a first transmission belt 128; one end of the shaft 121 is detachably screwed into the middle of the first clamp 111 and is located between a pair of limiting rods 113; one end of the shaft bracket 122 is fixedly screwed onto the other end of the shaft 121, and a first bearing 4 is embedded in the middle of the other end of the shaft bracket 122; both of the pair of guide rollers 123 have a conical structure, and their other ends have a round tube structure; the pair of guide rollers 126... 3. Insertion holes 6 are provided through the middle of each of the three parts. A pair of guide rollers 123 are symmetrically arranged, and the other end of one of the guide rollers 123 passes through the middle of the first bearing 4. The two ends of the adjusting rod 124 are respectively inserted into the insertion holes 6 in the middle of the guide roller 123. A pair of fastening bolts 125 are respectively screwed to the side wall of the other end of the guide roller 123 and tightened against the adjusting rod 124 for fixation. The first motor 126 is fixedly mounted on one end of the shaft frame 122. A pair of first pulleys 127 are respectively fixedly mounted on the other end of one of the guide rollers 123 and the drive end of the first motor 126. The first transmission belt 128 is movably fitted between the first pulleys 127. One end of the shaft 121 is detachably screwed into the middle of the first clamping seat 111 and positioned between a pair of limiting rods 113, achieving a stable connection with the clamping unit 11. The shaft bracket 122 is fixed to the end of the shaft 121, and the distal end of which is fitted with a first bearing 4 to provide rotational support for the guide roller 123. The pair of guide rollers 123 are symmetrically arranged, with one end being a conical structure and the other end being a round tube structure, and each has an insertion hole 6 in the middle. The two ends of the adjusting rod 124 are respectively inserted into the insertion holes 6 of the two guide rollers 123. By tightening the fastening bolts 125 on the side wall of the guide roller 123, the adjusting rod 124 can be fixed relative to the guide roller 123. The distance between the two tapered guide rollers 123 is then adjusted to accommodate plates or pipes of different widths and thicknesses. One of the guide rollers 123 passes through the first bearing 4. The first motor 126 is fixed to the shaft frame 122. The motor drive end and the end of the guide roller 123 are respectively equipped with the first pulley 127. The first transmission belt 128 is sleeved between the two first pulleys 127. After the first motor 126 is started, it drives the guide roller 123 to rotate through the transmission action of the first pulley 127 and the first transmission belt 128. The plate or pipe is driven forward by the friction of the tapered guide roller 123, thus completing the auxiliary feeding action.

[0026] More specifically, the guiding unit 12 can flexibly adjust the spacing of the guide rollers 123 through the cooperation of the adjusting rod 124 and the fastening bolt 125, adapting to various specifications of sheet and pipe workpieces and having good versatility; the guide rollers 123 are driven by belt drive to actively feed, which can match the rhythm of the production line to maintain the stability of workpiece conveying, reduce the movement and deviation of workpieces during the conveying process, and help ensure the imaging clarity and data consistency of subsequent visual inspection; at the same time, the whole is detachably connected to the clamping unit 11 through the shaft 121, making disassembly and maintenance simple, and the assembly position can be flexibly adjusted according to the production line layout.

[0027] As a preferred embodiment, the detection structure 2 further includes a flipping unit 21 and a detection unit 22. The flipping unit 21 is movably mounted on the shaft 121, and the detection unit 22 is fixedly mounted on the flipping unit 21. The flipping unit 21 is used to fit the size detection of different materials and parts, and drives the detection unit 22 to turn its direction. The detection unit 22 is used to realize the size detection of materials through vision.

[0028] As a preferred embodiment, the flipping unit 21 further includes a support platform 211, a locking bolt 212, axle 213, a washer 214, a base 215, a second motor 216, a pair of second pulleys 217, and a second transmission belt 218. The support platform 211 has a convex frustum structure with a through-hole in the middle. A second bearing 5 is embedded in the through-hole. The support platform 211 is fitted onto the middle of the shaft 121 through the second bearing 5, and the support platform 211 can rotate through the second bearing 5. The locking bolt 212 is screwed into the side wall of the support platform 211, and the locking bolt 212 is pressed against the side wall of the shaft 121. The locking bolt 212 is located below the second bearing 5. One end of the axle 213 is screwed onto the side wall of the shaft 121 and is located below the support platform 211. The washer 214 is movably mounted on the other end of the axle 213 and is in contact with the lower wall of the support platform 211. The washer 214 can rotate. The base 215 is detachably mounted on the first clamp 111. The second motor 216 is fixedly mounted on the base 215. A pair of second pulleys 217 are respectively fixedly mounted on the drive end of the second motor 216 and one end of the support platform 211. The second transmission belt 218 is movably fitted between the second pulleys 217. A frustum-shaped support platform 211 is movably mounted on the middle of a shaft 121 via a second bearing 5 within a central sleeve, allowing free rotation around the shaft 121. A locking bolt 212 is screwed onto the side wall of the support platform 211 and located below the second bearing 5, used to tighten and press against the side wall of the shaft 121, achieving positioning and locking of the support platform 211 after rotation. One end of a wheel axle 213 is fixed to the side wall of the shaft 121 and located below the support platform 211, while the other end of the wheel axle 213 is movably fitted with a washer 214. The upper surface of the washer 214 is in contact with the lower wall of the support platform 211 and rolls synchronously with the rotation of the support platform 211, providing support for the support platform 211. The base 215 is detachably mounted on the first clamp 111. The second motor 216 is fixed to the base 215. The second pulley 217 is installed on the drive end of the second motor 216 and one end of the support platform 211, respectively. The second transmission belt 218 is sleeved between the two second pulleys 217. After the second motor 216 is started, it drives the support platform 211 to rotate around the shaft 121 through the second pulley 217 and the second transmission belt 218, which drives the detection unit 22 to rotate synchronously to the required detection angle. After the angle is determined, tightening the locking bolt 212 can lock the position and complete the detection posture adjustment.

[0029] More specifically, the flipping unit 21 achieves circumferential angle adjustment of the detection unit 22 through bearings and belt drive. The adjustment process is smooth and stable, and can adapt to the imaging angle requirements of different workpieces and different detection parts. The auxiliary support structure of the pad wheel 214 can reduce the amount of shaking during the rotation of the bearing platform 211, improve the posture adjustment accuracy and running stability, and at the same time, with the locking bolt 212, the angle can be reliably locked to avoid angle deviation during the detection process. The whole is detachably connected to the clamping unit 11 through the base 215, which is convenient for assembly and maintenance, and the flipping function can be flexibly configured according to actual detection needs.

[0030] As a preferred embodiment, the detection unit 22 further includes a first telescopic arm 221, a second telescopic arm 222, a positioning bolt 223, a third motor 224, an electric slide rail 225, and a detection camera body 226. One end of the first telescopic arm 221 is fixedly mounted on the side wall of the support platform 211. One end of the second telescopic arm 222 is movably fitted onto the other end of the first telescopic arm 221. The positioning bolt 223 is screwed onto the upper wall of one end of the second telescopic arm 222 and is tightened against the first telescopic arm 221 for fixation. The third motor 224 is located on the lower wall of the other end of the second telescopic arm 222, and the drive end of the third motor 224 movably passes through the other end of the second telescopic arm 222. One end of the electric slide rail 225 is fixedly mounted on the drive end of the third motor 224. The detection camera body 226 is fixedly mounted on the electric slide rail 225 and moves up and down via the electric slide rail 225. The first telescopic arm 221 is fixedly mounted on the support platform 211. 1. The side wall rotates synchronously with the support platform 211; one end of the second telescopic arm 222 is movably sleeved on the outside of the first telescopic arm 221. By tightening the positioning bolt 223, the positioning bolt 223 is pressed against the outer wall of the first telescopic arm 221, thereby fixing and positioning the length between the first telescopic arm 221 and the second telescopic arm 222. Loosening the positioning bolt 223 allows adjustment of the overall arm length to adapt to different detection distances; the third motor 224 is installed on the lower wall of the other end of the second telescopic arm 222. Its drive end passes through the second telescopic arm 222 and is fixedly connected to one end of the electric slide rail 225, which can drive the electric slide rail 225 to perform circumferential angle adjustment; the detection camera body 226 is installed on the electric slide rail 225 and can move vertically up and down along the electric slide rail 225, thereby realizing multi-dimensional fine adjustment of the height, shooting angle and detection distance of the detection camera body 226, and finally completing the clear imaging and dimensional parameter detection of the plate or pipe.

[0031] More specifically, the detection unit 22, through its telescopic arm structure, circumferential rotation drive, and electric slide rail 225, can achieve multi-dimensional fine adjustment of detection distance, shooting angle, and imaging height, adapting to the imaging needs of different workpiece specifications and different detection parts, and has strong versatility; it can precisely adjust the detection camera body 226 to the optimal imaging position, which helps to improve the clarity of visual acquisition and the accuracy of size detection; at the same time, the overall posture can be adjusted synchronously with the flipping unit 21, further expanding the detection orientation and meeting the diverse detection conditions required in online detection.

[0032] As a preferred embodiment, the transition structure 3 further includes a base plate 31, a bracket 32, a mounting base 33, a pair of fourth bolts 34, a pair of fifth bolts 35, and a crossbeam 36. The bracket 32 ​​is a T-shaped rod, with one end fixed to the middle of the upper wall of the base plate 31. The mounting base 33 is L-shaped, and one side wall of the mounting base 33 has a mounting groove 7 that fits with the bracket 32. One end of the mounting base 33 is fitted onto the bracket 32 ​​through the mounting groove 7. A transition groove 8 is formed through one side wall of the mounting base 33. A pair of fourth bolts 34 are screwed onto the rear side wall of one end of the mounting base 33, and the fourth bolts 34 are tightened against the bracket 32. A pair of fifth bolts 35 are screwed onto the front side wall of one end of the mounting base 33, and the fifth bolts 35 can pass through the transition groove 8. The crossbeam 36 movably passes through the transition groove 8 of the mounting base 33, and the crossbeam 36 is fixed by the fifth bolts 35. The base plate 31 serves as a ground support. The basic structure consists of a T-shaped bracket 32 ​​vertically fixed to the middle of the upper wall of the base plate 31; an L-shaped mounting base 33 is movably fitted onto the outside of the bracket 32 ​​through a mounting groove 7 opened on the side wall. By tightening a pair of fourth bolts 34, the fourth bolts 34 are pressed against the surface of the bracket 32, achieving height positioning and locking of the mounting base 33 on the bracket 32; one end of the mounting base 33 has a through-hole transition groove 8, and a crossbeam 36 is movably inserted into the transition groove 8. By tightening a pair of fifth bolts 35, the fifth bolts 35 are pressed against the crossbeam 36, achieving a tight connection and position locking between the crossbeam 36 and the mounting base 33; the other end of the L-shaped mounting base 33 can be inserted and fixed into the first clamp 111 of the guide structure 1, thereby supporting the guide structure 1 and the detection structure 2 as a whole on the ground. At the same time, multiple mounting bases 33 and the guide structure 1 can be connected in series through the crossbeam 36 to form a multi-station continuous conveying and detection layout.

[0033] More specifically, the transfer structure 3 forms an independent ground support system through the base plate 31 and the hanging frame 32, which allows the testing device to be set up independently from the original production equipment and adapt to production line scenarios without suitable clamping points; the height-adjustable mounting base 33 and the series-extendable crossbeam 36 structure design can flexibly adapt to the conveying height requirements of different specifications of workpieces, and can also flexibly configure the number of workstations according to production capacity and testing requirements, and quickly build a multi-workstation continuous testing layout; the whole adopts the assembly method of plug-in and bolt locking, which is simple to assemble and disassemble, and facilitates the rapid on-site construction and adjustment of the testing line, effectively improving the device's scenario adaptability and layout flexibility.

[0034] As a preferred option, the other end of the mounting base 33 can be inserted into one end of the first clamp 111 for fixation, and is used to support the guide structure 1 and the detection structure 2 on the ground through the adapter structure 3; a mounting base 33 can be installed at each end of the crossbeam 36, and is used to support multiple guide structures 1.

[0035] Its detailed connection method is a well-known technology in this field. The following mainly introduces the working principle and process, and the specific work is as follows.

[0036] The solution consists of a guide structure 1, a detection structure 2, and a transfer structure 3. It can be directly clamped and installed on existing production equipment, or supported on the ground through the transfer structure 3 to form a detection production line. It can transport and detect the dimensions of plates of different widths and thicknesses, and obtain key dimensions such as wall thickness, circumference, and diameter of high-frequency welded pipes after forming by converting plate parameters, thus realizing online visual inspection. Installation and Fixing Stage: During installation, the device is quickly fixed to the production equipment through the clamping unit 11: the first clamp 111 and the second clamp 112 are connected to form an I-shaped structure, and the limiting rod 113 passes through the first clamp 111 and the second clamp 112 to guide and prevent deviation; tighten the clamping bolts 114 to clamp the first clamp 111 and the second clamp 112 in the corresponding position of the production equipment to complete the overall fixation; If a ground support layout is adopted, the mounting base 33 of the transition structure 3 is inserted into the first clamp 111, the base plate 31 serves as the support foundation, the T-shaped bracket 32 ​​and the L-shaped mounting base 33 are locked and positioned by the fourth bolt 34, the cross frame 36 passes through the transition groove 8 of the mounting base 33 and is fixed by the fifth bolt 35, which can simultaneously support multiple sets of guide structures 1 to form a continuous conveying and detection layout; Material conveying stage: Material conveying is completed by the guiding unit 12: The shaft 121 is detachably connected to the middle of the first clamp 111, the shaft frame 122 is fixed to the end of the shaft 121, and the first bearing 4 is installed in the shaft frame 122 to provide rotational support for the guide roller 123; a pair of tapered guide rollers 123 cooperate with the adjusting rod 124 through the middle insertion hole 6. Loosening the fastening bolt 125 can adjust the distance between the two guide rollers 123 to adapt to plates of different widths and thicknesses, and tightening the fastening bolt 125 can complete the positioning; When the first motor 126 starts, it drives the guide roller 123 to rotate through the first pulley 127 and the first transmission belt 128. The plate is smoothly conveyed forward by the friction of the tapered guide roller 123, providing continuous and stable material feeding for subsequent testing. During the inspection, the posture is adjusted, and the inspection posture is adjusted in multiple directions by the flipping unit 21: the support platform 211 is mounted on the shaft 121 through the second bearing 5 in the middle, and can rotate freely around the shaft 121; the wheel axle 213 and the pad wheel 214 are in contact with the lower wall of the support platform 211, providing rotational support and preventing axial movement; the base 215 is fixed to the first clamp 111. After the second motor 216 is started, it drives the support platform 211 to rotate through the second pulley 217 and the second transmission belt 218, driving the inspection unit 22 to adjust to the optimal inspection angle and position; after the angle is determined, the locking bolt 212 is tightened to tighten the shaft 121, realizing the positioning and locking of the support platform 211; if the thickness and width of the substrate material are to be inspected, the inspection unit 22 does not need to be driven to flip by the second motor 216 in the flipping unit 21, but can directly adjust the inspection camera body 226 to correspond with the substrate, and then tighten the support platform 211 by the locking bolt 212; Visual inspection execution: Dimensional inspection is completed by inspection unit 22: the first telescopic arm 221 is fixed to the side wall of the support platform 211, and the second telescopic arm 222 is movably sleeved on the outside of the first telescopic arm 221 and locked by positioning bolts 223 to realize the adjustment of the inspection arm length to adapt to different inspection distances and inspection parts; the third motor 224 drives the electric slide rail 225 to rotate axially to adjust the shooting direction of the inspection camera body 226; the inspection camera body 226 is installed on the electric slide rail 225 and can be raised and lowered vertically along the slide rail to realize fine adjustment of the inspection position; The main body of the detection camera 226 images the side wall and top wall of the conveyed plate, directly obtaining the plate thickness and width data; since the plate is bent and welded into a tube, its thickness is equal to the tube wall thickness and its width is equal to the tube cross-sectional perimeter. The diameter parameter of the tube after forming can be calculated by using the perimeter formula perimeter = π × diameter, realizing integrated detection from plate parameters to tube size; If the finished pipe is to be inspected, after installation, a guide structure 1 and a detection structure 2 can be set at the outlet of the pipe end. The detection unit 22 is driven to move axially a certain distance by the flipping unit 21, and the position of the second telescopic arm 222 on the first telescopic arm 221 is adjusted so that the detection camera body 226 can be flipped by the third motor 224 so that it can correspond to the pipe opening to realize imaging detection. During the pipe transportation, the detection data is flipped and reset to prevent the pipe from being blocked from moving out. When continuous testing and extended operation are required, the device can be inserted into the transition grooves 8 at both ends of the crossbeam 36 of the transition structure 3 and fixed by the fifth bolt 35. This allows multiple sets of guiding structures 1 to be connected in series to form a continuous auxiliary conveying production line. The conveying height can be adjusted on the bracket 32 ​​by the mounting base 33 and then tightened by the fourth bolt 34. At the same time, only the detection structure 2 needs to be configured at the end to complete the online testing of the entire production line. The entire process does not require machine shutdown or offline sampling, and can realize real-time, continuous, and high-precision testing of dimensional parameters during the production of high-frequency welded pipes.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An online visual inspection device for the dimensional parameters of high-frequency welded pipes, characterized in that, It includes a conveying structure (1), a detection structure (2), and a transfer structure (3). The conveying structure (1) is used to fix itself on the production equipment and plays the role of assisting in conveying the workpiece and supporting the detection structure (2). The detection structure (2) is detachably mounted on the conveying structure (1) and is used to detect the material size data through imaging. The transfer structure (3) is detachably mounted on the conveying structure (1) and can support multiple conveying structures (1) and detection structures (2), realizing ground support and the arrangement of the conveying structures (1).

2. The online visual inspection device for the dimensional parameters of high-frequency welded pipes according to claim 1, characterized in that, The conveying structure (1) includes a clamping unit (11) and a conveying unit (12). The conveying unit (12) is detachably mounted on the clamping unit (11). The clamping unit (11) is used to be directly installed on existing production equipment. The conveying unit (12) is used to provide power, assist in conveying and feeding materials, and can fit plates and pipes of different widths.

3. The online visual inspection device for the dimensional parameters of high-frequency welded pipes according to claim 2, characterized in that, The clamping unit (11) includes a first clamp (111), a second clamp (112), a pair of limiting rods (113), and a pair of clamping bolts (114). The first clamp (111) has a concave end and a straight end. The second clamp (112) is L-shaped. One end of the second clamp (112) is movably disposed on the first clamp (111), and the second clamp (112) and the first clamp (111) are connected to form an I-shaped structure. One end of a pair of limiting rods (113) is symmetrically disposed on one end of the second clamp (112), and the other end of the limiting rods (113) movably passes through the middle of the first clamp (111). One end of a pair of clamping bolts (114) is screwed into the middle of the first clamp (111), and the clamping bolts (114) pass through the first clamp (111). The pair of clamping bolts (114) are screwed into one end of the second clamp (112).

4. The online visual inspection device for the dimensional parameters of high-frequency welded pipes according to claim 3, characterized in that, The guiding unit (12) includes a shaft (121), a shaft frame (122), a pair of guide rollers (123), an adjusting rod (124), a pair of fastening bolts (125), a first motor (126), a pair of first pulleys (127), and a first transmission belt (128). One end of the shaft (121) is detachably screwed into the middle of the first clamp (111) and located between a pair of limiting rods (113). One end of the shaft bracket (122) is fixedly screwed onto the other end of the shaft (121), and a first bearing (4) is embedded in the middle of the other end of the shaft bracket (122). One end of each pair of guide rollers (123) is tapered, and the other end is a round tube. An insertion hole (6) is provided through the middle of each pair of guide rollers (123). The pair of guide rollers (123) are symmetrically arranged, and the other end of one of the guide rollers (123) passes through the first shaft. In the middle of the bearing (4), the two ends of the adjusting rod (124) are respectively inserted into the insertion hole (6) in the middle of the guide roller (123). A pair of fastening bolts (125) are respectively screwed onto the side wall of the other end of the guide roller (123) and tightened against the adjusting rod (124) for fixation. The first motor (126) is fixedly mounted on one end of the shaft frame (122). A pair of first pulleys (127) are respectively fixedly mounted on the other end of one of the guide rollers (123) and the drive end of the first motor (126). The first transmission belt (128) is movably fitted between the first pulleys (127).

5. The online visual inspection device for the dimensional parameters of high-frequency welded pipes according to claim 4, characterized in that, The detection structure (2) includes a flipping unit (21) and a detection unit (22); The flipping unit (21) is movably mounted on the shaft (121), and the detection unit (22) is fixedly mounted on the flipping unit (21). The flipping unit (21) is used to fit the size detection of different materials and parts, and drives the detection unit (22) to turn its direction. The detection unit (22) is used to realize the size detection of materials through vision.

6. The online visual inspection device for the dimensional parameters of high-frequency welded pipes according to claim 5, characterized in that, The flipping unit (21) includes a support platform (211), a locking bolt (212), a wheel axle (213), a pad wheel (214), a base (215), a second motor (216), a pair of second pulleys (217), and a second transmission belt (218). The support platform (211) is a convex frustum structure with a through-hole in the middle. A second bearing (5) is embedded in the through-hole. The support platform (211) is fitted onto the middle of the shaft (121) through the second bearing (5), and the support platform (211) can rotate through the second bearing (5). The locking bolt (212) is screwed into the side wall of the support platform (211), and the locking bolt (212) is pressed against the side wall of the shaft (121). The locking bolt (212) is located below the second bearing (5). One end of the axle (213) is screwed into the side wall of the shaft (121) and is located below the second bearing (5). Below the support platform (211), the pad wheel (214) is movably mounted on the other end of the axle (213), and the pad wheel (214) is attached to the lower wall of the support platform (211). The pad wheel (214) can rotate. The base (215) is detachably mounted on the first clamp (111). The second motor (216) is fixedly mounted on the base (215). A pair of second pulleys (217) are respectively fixedly mounted on the drive end of the second motor (216) and one end of the support platform (211). The second transmission belt (218) is movably fitted between the second pulleys (217).

7. The online visual inspection device for the dimensional parameters of high-frequency welded pipes according to claim 6, characterized in that, The detection unit (22) includes a first telescopic arm (221), a second telescopic arm (222), a positioning bolt (223), a third motor (224), an electric slide rail (225), and a detection camera body (226). One end of the first telescopic arm (221) is fixedly mounted on the side wall of the support platform (211). One end of the second telescopic arm (222) is movably mounted on the other end of the first telescopic arm (221). The positioning bolt (223) is screwed onto the upper wall of one end of the second telescopic arm (222), and the positioning bolt (223) is tightened against the first telescopic arm (221) for fixation. The third motor (224) is mounted on the lower wall of the other end of the second telescopic arm (222), and the driving end of the third motor (224) moves through the other end of the second telescopic arm (222). One end of the electric slide rail (225) is fixedly mounted on the driving end of the third motor (224). The detection camera body (226) is fixedly mounted on the electric slide rail (225) and moves up and down through the electric slide rail (225).

8. The online visual inspection device for the dimensional parameters of high-frequency welded pipes according to claim 7, characterized in that, The adapter structure (3) includes a base plate (31), a bracket (32), a mounting base (33), a pair of fourth bolts (34), a pair of fifth bolts (35), and a crossbar (36). The bracket (32) is a T-shaped rod. One end of the bracket (32) is fixedly set in the middle of the upper wall of the base plate (31). The mounting base (33) is L-shaped, and one side wall of the mounting base (33) is provided with a mounting groove (7) that fits with the bracket (32). One end of the mounting base (33) is fitted onto the bracket (32) through the mounting groove (7). One side wall of the mounting base (33) is provided with a transition groove (8). A pair of fourth bolts (34) are respectively screwed onto the rear side wall of one end of the mounting base (33), and the fourth bolts (34) are tightened against the bracket (32). A pair of fifth bolts (35) are respectively screwed onto the front side wall of one end of the mounting base (33), and the fifth bolts (35) can pass through the transition groove (8). The crossbar (36) moves through the transition groove (8) of the mounting base (33), and the crossbar (36) is fixed by the fifth bolts (35).

9. The online visual inspection device for the dimensional parameters of high-frequency welded pipes according to claim 8, characterized in that, The other end of the mounting base (33) can be inserted into one end of the first clamp (111) for fixing, and is used to support the guide structure (1) and the detection structure (2) on the ground through the adapter structure (3).

10. The online visual inspection device for the dimensional parameters of high-frequency welded pipes according to claim 9, characterized in that, The crossbar (36) can be equipped with a mounting base (33) at each end and is used to support multiple guide structures (1).

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