A stainless steel crimping detection device based on B-ultrasound imaging technology and a control method thereof

Abstract

The application discloses a stainless steel crimping detection device and control method based on B-ultrasonic imaging technology, which comprises a ring pressure cylinder head, a plurality of pressure heads which can be radially telescopic and are used for ring pressure connection of stainless steel pipes, an ultrasonic probe which is movably arranged on the ring pressure cylinder head along the radial direction of the ring pressure cylinder head, and a marking device which is arranged on the sidewall of the ultrasonic probe and / or the ring pressure cylinder head, is electrically connected with the ultrasonic probe and is used for marking the ring pressure connected stainless steel pipe when the ultrasonic probe detects a crack. When the ultrasonic probe detects a crack in the ring pressure connected part of the stainless steel pipe, the marking device can be started to color mark the position of the outer wall of the stainless steel pipe, so that the specific position of the crack in the stainless steel pipe can be known in real time and accurately, time and labor are saved, and the detection efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the field of stainless steel pipe processing, and more specifically, relates to a stainless steel crimping detection device and control method based on B-mode imaging technology. Background Technology

[0002] Ultrasound medicine is a discipline that combines acoustics, medicine, optics, and electronics. It encompasses the study of acoustic techniques above audible frequencies in the medical field. This includes ultrasound diagnostics, ultrasound therapy, and biomedical ultrasound engineering. Therefore, ultrasound medicine is characterized by its integration of medicine, science, and engineering, covering a wide range of areas and possessing high value in the prevention, diagnosis, and treatment of diseases.

[0003] Ring-pressure connection involves placing a cylindrical wide-band sealing ring on the pipe fitting, inserting it into the socket of another ring-pressure pipe fitting, and applying pressure from the outside along the circumference of the socket using a special tool. This causes the socket and the pipe to deform and compress the sealing section of the socket, achieving a tight and sealed connection.

[0004] Existing ring pressing devices are basically divided into caliper type or chuck type, both of which use multiple pairs of pressure heads to press towards the center to ring-press two stainless steel tubes together. After the ring pressing process is completed, technicians need to check the dimensions of the crimp using specialized calipers.

[0005] However, when performing ring compression connections, the two stainless steel pipes will deform to some extent at the ring joint due to the compression process. If the deformation is too large or there are material problems, cracks may appear at the joint. Current inspection methods mainly rely on manual sampling, using a handheld ultrasonic testing device to manually inspect the connected stainless steel pipes. This method is labor-intensive and inefficient.

[0006] In view of this, the present invention is proposed. Summary of the Invention

[0007] The technical problem to be solved by this invention is to overcome the shortcomings of the prior art. The purpose is to provide a stainless steel crimping detection device based on B-mode imaging technology. By setting an ultrasonic probe and a marking device on the ring crimping cylinder head, when the ultrasonic probe detects cracks in the ring crimping connection of the stainless steel pipe, if a crack is found, the marking device can be activated to mark the outer wall position of the stainless steel pipe at that location with color. This allows for real-time and accurate determination of the specific location of the crack in the stainless steel pipe, saving time and effort and improving detection efficiency.

[0008] Another object of the present invention is to provide a control method.

[0009] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is: a stainless steel crimping detection device based on B-mode imaging technology, comprising: a ring-crushing cylinder head having multiple pressure heads that can extend and retract radially for ring-crushing stainless steel pipes; and further comprising:

[0010] An ultrasonic probe is movably mounted on the ring-forming cylinder head along the radial direction of the ring-forming cylinder head.

[0011] A marking device, installed on the side wall of the ultrasonic probe and / or the ring-pressed cylinder head, is electrically connected to the ultrasonic probe and is used to mark the stainless steel pipe with ring-pressed connection when the ultrasonic probe detects cracks.

[0012] Furthermore, it also includes a bearing, with the outer ring of the bearing embedded on the end face of the ring-pressure cylinder head, and the inner ring of the bearing connected to the ultrasonic probe.

[0013] Furthermore, a drive device is provided on the side wall of the ring-pressure cylinder head for driving the inner ring of the bearing to rotate;

[0014] The drive unit includes,

[0015] The drive wheel is rotatably mounted on the end face of the ring-pressure cylinder head and makes frictional contact with the side wall of the inner ring of the bearing.

[0016] The first drive motor has its drive shaft connected to the axle of the drive wheel, and is used to drive the drive wheel to rotate.

[0017] Furthermore, it also includes a retaining ring, which is embedded in the inner ring of the bearing, and an ultrasonic probe and / or marking device are disposed on the retaining ring.

[0018] Furthermore, a first telescopic rod is provided on the end face of the fixed ring, which can be arranged along the end face perpendicular to the fixed ring. A connecting plate is provided at one end of the first telescopic rod, and the ultrasonic probe and / or marking device are arranged on the connecting plate.

[0019] Furthermore, the end face of the ring-pressed cylinder head is provided with multiple protrusions spaced around it, and the upper end of the connecting plate is provided with a protruding rod, the rotation path of which coincides with the line connecting the multiple protrusions.

[0020] Furthermore, a lifting device is provided on the connecting plate. The driving end of the lifting device is connected to the ultrasonic probe and / or marking device, and is used to drive the ultrasonic probe and / or marking device to move up and down.

[0021] Furthermore, the lifting device includes a second drive motor, a screw, a threaded sleeve, a guide post, and a guide sleeve. The second drive motor is mounted on the connecting plate, and its drive shaft passes through the connecting plate and is connected to the screw. The screw is threadedly connected to the threaded sleeve, and the threaded sleeve is connected to a fixing plate.

[0022] A guide post and a guide sleeve are provided between the connecting plate and the fixed plate, and the driving ultrasonic probe and / or marking device are set on the fixed plate.

[0023] Furthermore, the marking device includes,

[0024] A labeling solution tank, mounted on a fixed plate, is used to store labeling solution;

[0025] An electromagnetic control valve is installed at the outlet of the labeling solution tank to control the inflow and outflow of the labeling solution in the tank.

[0026] The outlet pipe is connected to the valve port of the solenoid control valve.

[0027] The present invention also provides a control method, including any of the stainless steel crimping detection devices described above, comprising the following steps:

[0028] Identify the compression point of the stainless steel tube in the compression connection and move it to a position opposite to the ultrasonic probe;

[0029] Check whether there are cracks in the ring-pressed part of the stainless steel pipe. If so, mark the crack location corresponding to the crack in the stainless steel pipe; if not, continue the crack detection.

[0030] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

[0031] (1) By setting an ultrasonic probe and a marking device on the ring-pressing cylinder head, when the ultrasonic probe detects cracks in the ring-pressing connection of the stainless steel pipe, if a crack is found, the marking device can be activated to mark the outer wall position of the stainless steel pipe at that location with color. This allows for real-time and accurate determination of the specific location of the crack in the stainless steel pipe, enabling real-time marking of cracks during the crack detection process, saving time and effort, and improving detection efficiency.

[0032] (2) This invention, by setting a bearing on the end face of the ring-forming cylinder head and connecting the ultrasonic probe to the inner ring of the bearing, allows the ultrasonic probe to rotate around the center of the ring-forming cylinder head. After the two stainless steel tubes are ring-formed, when inspecting the ring-forming connection, the ultrasonic probe can rotate around the outer side of the stainless steel tube once to perform a rapid and comprehensive inspection of the ring-forming connection. This frees up the inspectors' hands and solves the problem of high labor intensity and poor inspection efficiency caused by manual inspection using a handheld ultrasonic testing instrument.

[0033] (3) The present invention embeds a fixed ring in the inner ring of the bearing, and provides a first telescopic rod on its end face. A connecting plate is provided at one end of the first telescopic rod, and an ultrasonic probe and / or marking device is provided on the connecting plate. The ultrasonic probe as a whole can move horizontally along the axis of the ring pressing cylinder head, so as to make horizontal fine-tuning actions according to the actual position of the ring pressing connection part.

[0034] (4) In this invention, multiple protrusions are arranged around the end face of the ring-pressing cylinder head at intervals, and a protruding rod is arranged at the upper end of the connecting plate. The rotation path of the protruding rod coincides with the line connecting the multiple protrusions. When the fixed ring drives the connecting plate to rotate around the center of the ring-pressing cylinder head, the rod head of the protruding rod will continuously contact each protrusion in sequence, and automatically cause the telescopic spring to be repeatedly stretched and rebounded to reset. When the ultrasonic probe detects the ring-pressed connection of the stainless steel pipe, the ultrasonic probe will not only move around the outer wall of the stainless steel pipe, but also move back and forth along the axial direction of the ring-pressing cylinder head, thereby expanding the coverage of the ring-pressed connection of the stainless steel pipe. This allows for a more comprehensive and accurate detection of cracks in the stainless steel pipe after ring-pressing.

[0035] (5) The present invention has a lifting device on the connecting plate. The driving end of the lifting device is connected to the ultrasonic probe and / or the marking device. It can adaptably and strictly control the distance between the ultrasonic probe and the marking device and the outer wall of the stainless steel pipe. The ultrasonic probe can more accurately detect cracks in the ring-pressed connection of the stainless steel pipe and mark the cracks in time.

[0036] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0037] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0038] Figure 1 This is a front view of the detection device in an embodiment of the present invention;

[0039] Figure 2 This is a rear view of the detection device in an embodiment of the present invention;

[0040] Figure 3 This is a schematic diagram of the ring-pressure cylinder head in an embodiment of the present invention;

[0041] Figure 4 for Figure 3 Enlarged structural diagram at point A;

[0042] Figure 5 This is a schematic diagram of the ring-pressure cylinder head in an embodiment of the present invention;

[0043] Figure 6 for Figure 5 Enlarged structural diagram at point B;

[0044] Figure 7 This is a flowchart of an embodiment of the present invention.

[0045] Description of main components in the diagram:

[0046] 1. Hydraulic oil tank; 2. Control system; 3. Fixing ring; 4. Bearing; 5. Fixing plate; 6. Drive wheel; 7. Ultrasonic probe; 8. Ring pressing cylinder head; 81. Press head; 9. Lifting device; 901. Second drive motor; 902. Screw; 903. Threaded sleeve; 904. Guide post; 905. Guide sleeve; 10. Second telescopic rod; 11. Marking device; 1101. Marking liquid tank; 1102. Electromagnetic control valve; 1103. Liquid outlet pipe; 1104. Liquid storage ring; 12. Buffer plate; 13. Protruding head; 14. First telescopic rod; 15. Motor fixing block; 16. First drive motor; 17. Protruding rod; 18. Position sensor; 19. Connecting plate; 20. Third drive motor.

[0047] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0049] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0050] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0051] like Figures 1 to 6 As shown, the stainless steel crimping detection device based on B-ultrasound imaging technology of the present invention includes a ring-crushing cylinder head 8, which has multiple pressure heads 81 that can extend and retract radially, for ring-crushing connection of stainless steel pipes.

[0052] The stainless steel ring pressing mechanism involved in this invention includes a hydraulic system, which at least includes a hydraulic oil tank 1, a hydraulic solenoid valve, and a third drive motor 20. The hydraulic solenoid valve is located at the oil pipe interface connected to the ring pressing cylinder head 8 to control the opening of the oil pipe. A hydraulic pump is installed in the hydraulic oil tank 1, and the hydraulic pump is driven by the drive shaft of the third drive motor 20 to draw hydraulic oil from the hydraulic oil tank 1. To protect the hydraulic pump, a check valve is installed between the outlet and the hydraulic pump. A glass level gauge is also installed on the side wall of the hydraulic oil tank 1, allowing direct observation of the hydraulic oil level inside the hydraulic oil tank 1 through a viewing window. An air filter is also installed on the top of the hydraulic oil tank 1, allowing it to be connected to the outside atmosphere to prevent pressure build-up caused by thermal expansion and contraction; it also filters impurities in the atmosphere to ensure the cleanliness of the hydraulic oil in the hydraulic oil tank 1. In addition, the ring pressing cylinder head 8 is provided with a plurality of paired pressing heads 81, which are continuously pressurized by the control of the third drive motor 20, the hydraulic oil tank 1 and the hydraulic solenoid valve, so that the pressing heads 81 can move along the radial direction of the ring pressing cylinder head 8, thereby enabling the ring pressing connection operation of two stainless steel pipes provided in the ring pressing cylinder head 8.

[0053] However, after the ring-crimping connection is completed, it is necessary to inspect the ring-crimped area of ​​the stainless steel pipe for crack defects. Traditionally, this is done manually using a handheld ultrasonic testing machine, which is labor-intensive and inefficient.

[0054] To overcome the aforementioned shortcomings, the present invention makes the following improvements:

[0055] It also includes,

[0056] The ultrasonic probe 7 is movably mounted on the ring-forming cylinder head 8 along the radial direction of the ring-forming cylinder head 8;

[0057] The marking device 11 is disposed on the side wall of the ultrasonic probe 7 and / or the ring-pressed cylinder head 8, and is electrically connected to the ultrasonic probe 7. It is used to mark the stainless steel pipe with ring-pressed connection when the ultrasonic probe 7 detects cracks.

[0058] In this invention, an ultrasonic probe 7 is provided on the ring-forming cylinder head 8, which can move closer to or further away from the center of the ring-forming cylinder head 8. When inspecting the ring-forming portion of stainless steel pipes of different diameters, it is necessary to adjust the ultrasonic probe 7 to be close to and pressed against the outer wall of the stainless steel pipe, so as to more accurately detect cracks in the ring-forming connection.

[0059] A marking device 11 is installed on the side wall of the ring-forming cylinder head 8. The marking device 11 can be a paint marking and is electrically connected to the ultrasonic probe 7. When the ultrasonic probe 7 detects cracks in the ring-forming connection of the stainless steel pipe, if a crack is found, the marking device 11 can be activated to mark the location on the outer wall of the stainless steel pipe at that point, thus providing real-time and accurate information about the specific location of the crack. This helps operators to promptly assess the quality of the stainless steel pipe or perform repair work. Alternatively, the marking device 11 can also be integrated into the side wall of the ultrasonic probe 7, allowing for timely marking when the ultrasonic probe 7 detects a crack in the stainless steel pipe.

[0060] By combining the ultrasonic probe 7 with the marking device 11, cracks can be marked in real time during the crack detection process of stainless steel pipes. This saves time and effort and improves detection efficiency.

[0061] Furthermore, it also includes a bearing 4, the outer ring of which is embedded on the end face of the ring pressure cylinder head 8, and the inner ring of which is connected to the ultrasonic probe 7.

[0062] In this invention, a mounting groove is provided on the front or rear face of the ring-pressed cylinder head 8, and the outer ring of the bearing 4 is embedded in the mounting groove. The outer ring of the bearing 4 and the mounting groove are rigidly fitted, allowing the inner ring of the bearing 4 to rotate relative to the outer ring. Connecting the ultrasonic probe 7 to the inner ring of the bearing 4 allows the ultrasonic probe 7 to rotate around the center of the ring-pressed cylinder head 8. After the two stainless steel tubes are ring-pressed together, when inspecting the ring-pressed connection, rotating the ultrasonic probe 7 around the outer side of the stainless steel tube allows for rapid and comprehensive inspection of the ring-pressed connection from all angles. This frees up the inspectors' hands and solves the problem of high labor intensity and low inspection efficiency caused by manual inspection using a handheld ultrasonic testing instrument.

[0063] Furthermore, a drive device is provided on the side wall of the ring-pressure cylinder head 8 for driving the inner ring of the bearing 4 to rotate;

[0064] The drive unit includes,

[0065] The drive wheel 6 is rotatably mounted on the end face of the ring pressure cylinder head 8 and makes frictional contact with the side wall of the inner ring of the bearing 4;

[0066] The first drive motor 16 has its drive shaft connected to the axle of the drive wheel 6 and is used to drive the drive wheel 6 to rotate.

[0067] In this invention, the axle of the drive wheel 6 in the drive device is inserted into the end face of the ring-forming cylinder head 8, forming a rotatable connection with the end face of the ring-forming cylinder head 8. The outer wall of the drive wheel 6 can contact the inner ring of the bearing 4, achieving a frictional drive effect. Specifically, a motor fixing block 15 is provided on the side wall of the ring-forming cylinder head 8, and a first drive motor 16 is fixedly installed on it. The drive shaft of the first drive motor 16 passes through the side wall of the motor fixing block 15 and is fixedly connected to the axle of the drive wheel 6, so that the driving force of the first drive motor 16 can drive the drive wheel 6 to rotate. Then, due to the friction between the drive wheel 6 and the inner ring of the bearing 4, the inner ring of the bearing 4 drives the ultrasonic probe 7 installed on it to rotate, thereby rotating around the stainless steel tube inserted in the ring-forming cylinder head 8, thus performing rapid and comprehensive crack detection on the entire ring-forming connection. Compared with the traditional manual inspection using a handheld ultrasonic detector, this reduces the labor intensity of the inspection and improves the inspection efficiency.

[0068] Furthermore, it also includes a retaining ring 3, which is embedded in the inner ring of the bearing 4, and an ultrasonic probe 7 and / or a marking device 11 are disposed on the retaining ring 3.

[0069] In this invention, to ensure the secure and convenient connection between the bearing 4 and the ultrasonic probe 7, the ultrasonic probe 7 and the marking device 11 can be mounted on a fixing ring 3 whose outer diameter matches the inner ring of the bearing 4. The fixing ring 3 is keyed to the inner ring of the bearing 4 and locked with screws, allowing for the assembly and disassembly of the ultrasonic probe 7 and the marking device 11 within the ring-pressing cylinder head 8. During maintenance and cleaning, the ultrasonic probe 7 and the marking device 11 can be quickly disassembled.

[0070] Furthermore, a first telescopic rod 14 is provided on the end face of the fixed ring 3, which can be arranged along the end face perpendicular to the fixed ring 3. A connecting plate 19 is provided on one end of the first telescopic rod 14, and the ultrasonic probe 7 and / or marking device 11 are arranged on the connecting plate 19.

[0071] In this invention, a first telescopic rod 14 is provided on the end face of the fixed ring 3 away from the bearing 4. The first telescopic rod 14 is horizontally arranged and perpendicular to the end face of the fixed ring 3. Specifically, the first telescopic rod 14 includes a sleeve, a sleeve, and a telescopic spring. The sleeve is slidably disposed in the sleeve, and the telescopic spring is sleeved on the outside of the sleeve and the sleeve, with both ends of the telescopic spring fixedly connected to the side walls of the fixed ring 3 and the connecting plate 19, respectively. The end face of the sleeve is connected to the fixed ring 3, and the free end of the sleeve is connected to the connecting plate 19, on which the ultrasonic probe 7 and the marking device 11 are disposed. The ultrasonic probe 7 can then move horizontally along the axis of the ring pressing cylinder head 8, allowing for horizontal fine-tuning based on the actual position of the ring pressing connection. An elastic locking structure, such as a spring limit block perpendicular to the direction of movement of the sleeve, can be provided on the inner ring of the sleeve to lock after the sleeve moves relative to the sleeve, ensuring locking after adjustment.

[0072] Furthermore, the end face of the ring-pressure cylinder head 8 is provided with a plurality of protrusions 13 spaced around it, and the upper end of the connecting plate 19 is provided with a protruding rod 17, the rotation path of the protruding rod 17 coincides with the line connecting the plurality of protrusions 13.

[0073] In this invention, multiple protrusions 13 are evenly spaced around the end face of the ring-forming cylinder head 8, with the front end of each protrusion 13 being hemispherical. A vertically positioned fixing rod is provided at the upper end of the connecting plate 19, and a protruding rod 17 extending horizontally towards the protrusions 13 is provided on one side of the fixing rod, with the rod head of the protruding rod 17 also being hemispherical. When the fixing ring 3 drives the connecting plate 19 to rotate around the center of the ring-forming cylinder head 8, the rod head of the protruding rod 17 will continuously contact each of the protrusions 13 in sequence, automatically causing the telescopic spring to be repeatedly stretched and rebounded. Therefore, when the ultrasonic probe 7 detects the ring-forming connection of the stainless steel pipe, the ultrasonic probe 7 not only moves around the outer wall of the stainless steel pipe but also reciprocates along the axial direction of the ring-forming cylinder head 8, thereby expanding the coverage area of ​​the ring-forming connection of the stainless steel pipe. This allows for a more comprehensive and accurate detection of cracks in the stainless steel pipe after ring-forming.

[0074] Furthermore, as the protruding rod 17 continuously contacts each of the protruding heads 13, the marking device 11 also sways laterally. Since the marking method in this invention uses a sprayed marking liquid, it is not limited to paint marking. When the sprayed marking liquid is not used for a long time, it may become viscous or solidify. Therefore, during the continuous contact between the protruding rod 17 and the protruding heads 13, the marking liquid remains in a state of constant movement, allowing it to flow smoothly and ensuring the normal operation of the marking process.

[0075] Furthermore, a lifting device 9 is provided on the connecting plate 19. The driving end of the lifting device 9 is connected to the ultrasonic probe 7 and / or the marking device 11, and is used to drive the ultrasonic probe 7 and / or the marking device 11 to move up and down.

[0076] In this invention, a lifting device 9 is provided on the connecting plate 19 to drive the ultrasonic probe 7 and the marking device 11 up and down. Since the diameters of the stainless steel pipes in the ring-pressed connection are different, in order to make the ultrasonic probe 7 more accurate in detecting cracks in the ring-pressed connection of the stainless steel pipe and marking the cracks in time, it is necessary to adaptably and strictly control the distance between the ultrasonic probe 7 and the outer wall of the stainless steel pipe. At the same time, the distance between the marking device 11 and the stainless steel pipe also needs to be controlled.

[0077] Furthermore, the lifting device 9 includes a second drive motor 901, a screw 902, a threaded sleeve 903, a guide post 904, and a guide sleeve 905. The second drive motor 901 is mounted on the connecting plate 19, and its drive shaft passes through the connecting plate 19 and is connected to the screw 902. The screw 902 is threadedly connected to the threaded sleeve 903, and the threaded sleeve 903 is connected to the fixing plate 5. The guide post 904 and the guide sleeve 905 are arranged between the connecting plate 19 and the fixing plate 5. The driving ultrasonic probe 7 and / or the marking device 11 are mounted on the fixing plate 5.

[0078] In this invention, the lifting device 9 can be connected to the screw 902 via the drive end of the second drive motor 901 mounted on the connecting plate 19. Through the threaded connection between the screw 902 and the threaded sleeve 903, and in conjunction with the limiting and directional movement of the guide post 904 and the guide sleeve 905, the ultrasonic probe 7 and the marking device 11 mounted on the fixed plate 5 can move stably up and down. This allows the distance between the ultrasonic probe 7 and the marking device 11 and the stainless steel pipe to be adjusted according to the pipe diameter, thereby ensuring accurate detection of the circumferential connection of the stainless steel pipe and timely marking when cracks appear.

[0079] Furthermore, the marking device 11 includes,

[0080] The labeling solution tank 1101 is mounted on the fixed plate 5 and is used to store the labeling solution;

[0081] The electromagnetic control valve 1102 is located at the outlet of the labeling liquid tank 1101 and is used to control the entry and exit of the labeling liquid in the labeling liquid tank 1101.

[0082] The outlet pipe 1103 is connected to the valve port of the solenoid control valve 1102.

[0083] In this invention, the marking device 11 includes at least a marking liquid tank 1101 mounted on a fixed plate 5. The top of the marking liquid tank 1101 has a dispensing port for replenishing the marking liquid. Additionally, a transparent observation port is provided on the side wall of the marking liquid tank 1101, allowing real-time monitoring of the marking liquid level. This prevents the operation of crack detection from continuing even when the marking liquid is insufficient, thus avoiding the inability to provide timely and accurate feedback to operators regarding the crack detection status of the circumferential connection of the stainless steel pipe.

[0084] An outlet is provided at the bottom of the marking liquid tank 1101. An electromagnetic control valve 1102 is provided at the outlet, and an outlet pipe 1103 is provided at the valve port. The outlet pipe 1103 extends vertically downward. When the ultrasonic probe 7 detects a crack in the ring-compression connection of the stainless steel pipe, the electromagnetic control valve 1102 controls the dripping of the marking liquid from the outlet pipe 1103.

[0085] More specifically, a buffer plate 12 is provided below the fixed plate 5, and a second telescopic rod 10 is provided between the buffer plate 12 and the fixed plate 5. The specific components of the second telescopic rod 10 are exactly the same as those of the first telescopic rod 14. The ultrasonic probe 7 and the marking device 11 are placed on the buffer plate 12. This arrangement allows for buffering when the ultrasonic probe 7 and the marking device 11 are adjusted to contact the stainless steel tube via the lifting device 9, preventing rigid contact between the outlet pipe 1103 of the ultrasonic probe 7 and the marking device 11 and the stainless steel tube, which could damage the ultrasonic probe 7 and the outlet pipe 1103.

[0086] In addition, the connecting plate 19 is symmetrically provided with a protruding plate about the axis of the ring-pressing cylinder head 8. A position sensor 18 is provided on the protruding plate. After the stainless steel tube after ring pressing is moved to the rear side of the ring-pressing cylinder head 8, the stainless steel tube can be moved to the rear side manually or by a robot until its ring pressing position is opposite to the position sensor 18. The robot can then be reminded or controlled to stop the conveying operation in time. This ensures that the ultrasonic probe 7 can accurately correspond to the ring pressing part (position) of the stainless steel tube after moving radially along the ring pressing cylinder head 8, thus ensuring the effectiveness of crack detection.

[0087] Furthermore, a liquid storage ring 1104 is connected to the outlet of the liquid outlet pipe 1103, and the interior of the liquid storage ring 1104 is hollow. The liquid storage ring 1104 is coaxially arranged with the ultrasonic probe 7, and the liquid storage ring 1104 is connected to the liquid outlet pipe 1103. Multiple drip ports are provided below the liquid storage ring 1104. When marking with the marking liquid, the liquid storage ring 1104 will spray the marking liquid around the ultrasonic probe 7 on a concentric circle larger than its outer diameter. The marking liquid forms a circle on the outer wall of the stainless steel pipe, which allows for more accurate positioning of cracks in the stainless steel pipe.

[0088] Reference Figure 7 The present invention also provides a control method having the stainless steel crimping detection device described in any of the above embodiments, comprising the following steps:

[0089] Identify the ring-clamping section of the stainless steel tube in the ring-clamping connection and move it to a position opposite to the ultrasonic probe 7;

[0090] Check whether cracks appear in the extruded part of the stainless steel pipe. If so, mark the location of the crack in the stainless steel pipe. If not, continue the crack detection.

[0091] In this invention, the compression points of two stainless steel pipes are predetermined, and the two stainless steel pipes that need to be ring-pressed are temporarily connected. A rubber ring is fitted on the outer wall of the pipe with a relatively smaller diameter. Then, the ring-pressing part of the stainless steel pipe is inserted into the ring-pressing cylinder head 8 by manual or mechanical means. The pressure head 81 in the ring-pressing cylinder head 8 gradually moves towards the center to realize the ring-pressing operation of the two stainless steel pipes. Then, the ring-pressing part of the stainless steel pipe is withdrawn to the position corresponding to the ultrasonic probe 7.

[0092] By moving the ultrasonic probe 7 to the outer wall of the stainless steel pipe and bringing it into contact, the ultrasonic probe 7 rotates around the center of the ring-pressed cylinder head 8, thereby performing a full rotation of crack detection at the ring-pressed connection. When a crack is detected, the detection device also includes a control system 2, which is electrically connected to the marking device 11 via the ultrasonic probe 7 and communicates with it through the control system 2. The electromagnetic control valve 1102 then controls the liquid outlet pipe 1103 to drip liquid onto the outer wall of the stainless steel pipe to mark the crack, thus providing operators with information such as where the crack is located in the stainless steel pipe.

[0093] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A stainless steel crimping inspection device based on B-mode imaging technology, comprising: a ring-crushing cylinder head having multiple radially retractable pressure heads for ring-crushing stainless steel pipes; characterized in that: It also includes, An ultrasonic probe is movably mounted on the ring-forming cylinder head along the radial direction of the ring-forming cylinder head. A marking device is installed on the side wall of the ring-pressed cylinder head and is electrically connected to the ultrasonic probe. It is used to mark the stainless steel pipe of the ring-pressed connection when the ultrasonic probe detects cracks. It also includes a bearing, with the outer ring of the bearing embedded in the end face of the ring-pressing cylinder head and the inner ring of the bearing connected to the ultrasonic probe; the side wall of the ring-pressing cylinder head is provided with a driving device for driving the inner ring of the bearing to rotate. The driving device includes a drive wheel, which is rotatably mounted on the end face of the ring-pressing cylinder head and in frictional contact with the side wall of the inner ring of the bearing; a first drive motor, whose drive shaft is connected to the axle of the drive wheel for driving the drive wheel to rotate; a motor fixing block is provided on the side wall of the ring-pressing cylinder head, and the first drive motor is fixedly mounted thereon; the drive shaft of the first drive motor passes through the side wall of the motor fixing block and is fixedly connected to the axle of the drive wheel, so that the driving force of the first drive motor drives the drive wheel to rotate; It also includes a retaining ring, which is embedded in the inner ring of the bearing, and an ultrasonic probe and a marking device are set on the retaining ring; a first telescopic rod is set on the end face of the retaining ring, the first telescopic rod is set horizontally, and can be set along the end face perpendicular to the retaining ring, and a connecting plate is set on one end of the first telescopic rod, and the ultrasonic probe and the marking device are set on the connecting plate; the connecting plate is symmetrically set with a protruding plate about the axis of the ring pressing cylinder head, and a position sensor is set on the protruding plate; The end face of the ring-pressing cylinder head is provided with multiple protrusions at intervals. The upper end of the connecting plate is provided with a protruding rod, and the rotation path of the protruding rod coincides with the line connecting the multiple protrusions. Multiple protrusions are arranged at equal intervals around the end face of the ring-pressing cylinder head, and the front end of the protrusions is hemispherical. The upper end of the connecting plate is provided with a vertically arranged fixing rod. One side of the fixing rod is provided with a protruding rod extending horizontally towards the protrusions. The rod head is also hemispherical. When the fixing ring drives the connecting plate to rotate around the center of the ring-pressing cylinder head, the rod head will continuously contact each protrusion in sequence, and automatically cause the telescopic spring to be repeatedly stretched and rebounded to reset. Therefore, when the ultrasonic probe detects the ring-pressing connection of the stainless steel pipe, the ultrasonic probe will not only move around the outer wall of the stainless steel pipe, but also move back and forth along the axial direction of the ring-pressing cylinder head.

2. The stainless steel crimping detection device based on B-mode imaging technology according to claim 1, characterized in that: The connecting plate is equipped with a lifting device, the drive end of which is connected to the ultrasonic probe and / or marking device to drive the ultrasonic probe and / or marking device to move up and down.

3. The stainless steel crimping detection device based on B-mode imaging technology according to claim 2, characterized in that: The lifting device includes a second drive motor, a screw, a threaded sleeve, a guide column, and a guide sleeve. The second drive motor is mounted on a connecting plate, and its drive shaft passes through the connecting plate and is connected to the screw. The screw is threadedly connected to the threaded sleeve, and the threaded sleeve is connected to a fixing plate. A guide post and a guide sleeve are provided between the connecting plate and the fixed plate, and the driving ultrasonic probe and / or marking device are set on the fixed plate.

4. The stainless steel crimping detection device based on B-mode imaging technology according to claim 3, characterized in that: A buffer plate is installed below the fixed plate, and a second telescopic rod is installed between the buffer plate and the fixed plate; The ultrasonic probe and marking device are mounted on the buffer plate.

5. The stainless steel crimping detection device based on B-mode imaging technology according to claim 4, characterized in that: The marking device includes, A labeling solution tank, mounted on a fixed plate, is used to store labeling solution; An electromagnetic control valve is installed at the outlet of the labeling solution tank to control the inflow and outflow of the labeling solution in the tank. The outlet pipe is connected to the valve port of the solenoid control valve.

6. A control method, characterized in that: The stainless steel crimping testing device as described in any one of claims 1-5 includes the following steps: Identify the compression point of the stainless steel tube in the compression connection and move it to a position opposite to the ultrasonic probe; Check whether there are cracks in the ring-pressed part of the stainless steel pipe. If so, mark the crack location corresponding to the crack in the stainless steel pipe; if not, continue the crack detection.

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