Pipe fitting leakage point detection device

Abstract

The invention belongs to the technical field of pipe fitting processing, and particularly relates to a pipe fitting leakage point detection device, which comprises flaw detection equipment, inner water blowing equipment and pressure test equipment, the pressure test equipment comprises a pressure test rack, the pressure test rack is provided with two groups of pressure test adjusting assemblies, the two groups of pressure test adjusting assemblies are oppositely arranged, and the pressure test adjusting assemblies are arranged on the pressure test rack. The pressure test adjusting assembly comprises a pressure test base plate, the pressure test base plate is movably installed on the pressure test rack, the pressure test base plate is provided with a pressure head installation frame, a rotation limiting mechanism, a quick insertion mechanism and a rotation driving mechanism, the pressure head installation frame is rotatably installed on the pressure test base plate, and the rotation limiting mechanism is rotatably installed on the pressure test base plate. A plurality of pressure head mounting plates are arranged on the pressure head mounting frame in the circumferential direction, and a plurality of pressure test heads are arranged on the pressure head mounting plates. According to the invention, the pressure head mounting rack can be rotated according to the size of the pipe fitting so as to select the pressure test head adaptive to the size of the pipe fitting, the pressure test head does not need to be manually replaced, and the adaptability of equipment and the working efficiency of pressure test are improved.

Description

Technical Field

[0001] The present invention relates to a pipe fitting leak point detection device, belonging to the technical field of pipe fitting processing. Background Art

[0002] In the field of pipe processing, the processing of heat exchange pipes involves a tooth rolling process. Whether the heat exchange pipes after tooth rolling are qualified needs to be determined through leak point detection. In the prior art, generally, a flaw detector detection device and a pressure test device are used to realize the leak point detection of pipe fittings. Due to the dimensional differences of pipe fittings with different specifications, the common flaw detector detection device and pressure test device can only be adapted to one specification of pipe fittings. For the pressure test operation of pipe fittings with different specifications, the corresponding specification of pressure test head needs to be manually replaced, and since the center heights of pipe fittings with different specifications are also different, therefore, the installation height of the pressure test head also needs to be adjusted, and the operation is rather cumbersome and time-consuming, which is not conducive to improving production efficiency and realizing automated production. In addition, before the pressure test, the residual moisture inside the pipe fittings needs to be removed to avoid the influence of the residual moisture on the pressure test operation, and generally, an internal water blowing device is used to remove the water inside the pipe. The existing internal water blowing device is provided with multiple stations adapted to different specifications of pipe fittings. However, since the air blowing devices at each station will work simultaneously after the internal water blowing device is started regardless of whether all stations are fully equipped with pipe fittings, the capacity of compressed air required by the device is large, and the compressor is in a working state for a long time, consuming a large amount of energy. Summary of the Invention

[0003] Aiming at the defects of the prior art, the present invention provides a pipe fitting leak point detection device.

[0004] The technical solution for the present invention to solve the above technical problems is as follows: A pipe fitting leak point detection device includes a flaw detection device, an internal water blowing device, and a pressure test device. A first transfer component is provided between the flaw detection device and the internal water blowing device, and a second transfer component is provided between the internal water blowing device and the pressure test device. The pressure test device includes a pressure test frame, and two groups of pressure test adjustment components are provided on the pressure test frame. The two groups of pressure test adjustment components are arranged oppositely. The pressure test adjustment component includes a pressure test substrate, the pressure test substrate is movably installed on the pressure test frame, a pressure head mounting frame, a rotation limiting mechanism, a quick insertion mechanism, and a rotation driving mechanism are provided on the pressure test substrate. The pressure head mounting frame is rotatably installed on the pressure test substrate, a plurality of pressure head mounting plates are circumferentially provided on the pressure head mounting frame, a plurality of pressure test heads are provided on the pressure head mounting plates, the rotation limiting mechanism is used to limit the rotation of the pressure head mounting frame, the quick insertion mechanism is used to limit the pressure head mounting plate and supply air to the pressure test head, and the rotation driving mechanism is used to provide the power for the rotation of the pressure head mounting plate.

[0005] The beneficial effects of the present invention are as follows: The present invention installs multiple pressure test heads through a pressure head mounting frame, and the pressure head mounting frame is rotatably installed on the pressure test machine frame. Therefore, the pressure head mounting frame can be rotated according to the size of the pipe fitting to select a pressure test head suitable for the size of the pipe fitting, enabling the pressure test equipment of the present invention to be adapted to the pressure test operations of various sizes of pipe fittings, and eliminating the need for manual replacement of the pressure test head, thereby improving the adaptability of the equipment and the working efficiency of the pressure test.

[0006] Based on the above technical solutions, the present invention can further be improved as follows: Furthermore, the rotation drive mechanism includes a rotating shaft, a rotating shaft support seat, a rotating drive disk, and a rotating power cylinder. There are two symmetrically arranged rotating shaft support seats, and the two rotating shaft support seats are installed on the pressure test substrate. The two ends of the rotating shaft are rotatably installed on the rotating shaft support seats. The pressure head mounting frame is installed on the rotating shaft. The rotating drive disk is installed at the end of the rotating shaft. The rotating power cylinder is installed on the pressure test substrate, and the piston rod of the rotating power cylinder is connected to the rotating drive disk through a rotating pin mechanism.

[0007] The beneficial effect of adopting the above further technical solution is that the rotating power cylinder drives the rotating drive disk to rotate through the rotating pin mechanism. The rotating drive disk drives the rotating shaft to rotate on the rotating shaft support seat, and the rotating shaft further drives the pressure head mounting frame to rotate, realizing the selection of pressure test heads of different specifications.

[0008] Furthermore, the rotating pin mechanism includes a drive seat, a plugging drive cylinder, and a drive pin. The drive seat is movably installed on the pressure test substrate. The piston rod of the rotating power cylinder is connected to the drive seat. The plugging drive cylinder is installed on the drive seat. The end of the piston rod of the plugging drive cylinder is connected to the drive pin. Multiple drive pin holes corresponding to the drive pin are provided on the rotating drive disk.

[0009] The beneficial effects of adopting the above further technical solution are as follows: The reciprocating movement of the driving seat on the pressure test substrate is driven by the telescopic movement of the piston rod of the rotary power cylinder, and the driving pin is driven to insert into the corresponding driving pin hole by the telescopic movement of the piston rod of the plug-in driving cylinder, so as to realize the driving of the rotary driving disc. Specifically, when the piston rod of the rotary power cylinder extends, it drives the driving seat to move to one side of the rotary driving disc. The piston rod of the plug-in driving cylinder extends, driving the driving pin to insert into the driving pin hole. Then the piston rod of the rotary power cylinder retracts, driving the driving seat to move in the reverse direction, thereby driving the plug-in driving cylinder and the driving pin to move. The driving pin drives the rotary driving disc to rotate a fixed angle. By adjusting the stroke of the piston rod of the rotary power cylinder, it can be ensured that the distance of each movement of the driving pin is certain, so that the driving pin drives the rotary driving disc to rotate a certain angle each time, making the angle of rotation of the rotary driving disc driving the rotary shaft fixed, so as to ensure that the pressure test head can be in an accurate position after each rotation. The rotary pin mechanism ensures the stable connection between the rotary power cylinder and the rotary driving disc, making the selection process of the pressure test head smoother and more reliable, and improving the operation stability and pressure test accuracy of the equipment.

[0010] Further, the quick insertion mechanism includes a quick plug, a quick socket, a moving seat, a tensioning power cylinder and a quick insertion power cylinder. The moving seat is movably installed on the pressure test substrate. The quick plug and the tensioning power cylinder are installed on the moving seat. The end of the piston rod of the tensioning power cylinder is connected to the quick plug. The quick socket is installed on the pressure head mounting frame. The number of the quick sockets is set corresponding to the number of the pressure head mounting plates. An air passage 1 is arranged inside the piston rod of the tensioning power cylinder, and the air passage 1 is communicated with the quick plug. An air passage 2 is arranged inside the pressure head mounting plate, and the air passage 2 is respectively communicated with the quick socket and the pressure test head installed on the pressure head mounting plate. The quick insertion power cylinder is installed on the pressure test substrate, and the piston rod of the quick insertion power cylinder is connected to the moving seat.

[0011] The beneficial effects of adopting the above further technical solutions are as follows: The telescopic movement of the piston rod of the quick-insert power cylinder drives the reciprocating movement of the moving seat on the pressure test base plate. When the piston rod of the quick-insert power cylinder extends, it drives the moving seat to move towards the direction of the indenter mounting bracket. At this time, the piston rod of the tensioning power cylinder extends, pushing the quick plug into the corresponding quick socket to limit the indenter mounting plate. At the same time, the quick plug is connected to the quick socket, and the tensioning power cylinder is connected to the gas supply device. The gas enters the second gas path through the first gas path, and then supplies gas to the pressure test head installed on the indenter mounting plate. When the piston rod of the quick-insert power cylinder retracts, it drives the moving seat to move towards the direction of the indenter mounting bracket. At the same time, the piston rod of the tensioning power cylinder retracts, pulling the quick plug away from the quick socket to release the limit on the indenter mounting plate. At the same time, the connection between the first gas path and the second gas path is disconnected, and the pressure test head on the indenter mounting plate stops supplying gas. The design of the quick-insert mechanism makes the gas supply and limit operation of the pressure test head faster and more convenient, improving the operation efficiency and automation level of the equipment.

[0012] Further, a stop mechanism is also provided on the pressure test frame. The stop mechanism includes a stop power cylinder. The end of the piston rod of the stop power cylinder passes through the pressure test base plate. The end of the piston rod of the stop power cylinder is connected to a stop pin. A plurality of stop limit holes are provided at the bottom of the moving seat.

[0013] The beneficial effects of adopting the above further technical solutions are as follows: The telescopic movement of the piston rod of the stop power cylinder drives the movement of the stop pin. When it is necessary to limit the indenter mounting plate, the piston rod of the stop power cylinder extends, driving the stop pin to insert into the corresponding stop limit hole to limit the moving seat, thereby realizing stable limitation of the indenter mounting plate and preventing the indenter mounting plate from shaking or moving during the pressure test, affecting the pressure test accuracy and safety. When it is necessary to release the limit on the indenter mounting plate, the piston rod of the stop power cylinder retracts, driving the stop pin to move out of the stop limit hole. At this time, the moving seat can move freely on the pressure test base plate, facilitating the replacement or adjustment of the pressure test head. The design of the stop mechanism further improves the operation stability and pressure test accuracy of the equipment, and is also beneficial to improving the automation level and operation convenience of the equipment.

[0014] Further, the rotation limit mechanism includes a rotation positioning disk and a rotation limit power cylinder. The rotation positioning disk is installed at the end of the rotation shaft. The end of the piston rod of the rotation limit power cylinder is provided with a rotation limit pin. A plurality of rotation positioning holes are circumferentially provided on the rotation positioning disk.

[0015] The beneficial effects of adopting the above further technical solution are as follows: The telescopic movement of the piston rod of the rotation limit power cylinder drives the rotation limit pin to move. When the indenter mounting bracket rotates to the target position, the piston rod of the rotation limit power cylinder extends, driving the rotation limit pin to insert into the corresponding rotation positioning hole to limit the rotation shaft, thereby realizing stable limiting of the indenter mounting bracket, ensuring that the pressure test head is in the correct position, and facilitating subsequent pressure test operations; when it is necessary to adjust the position of the pressure test head, the piston rod of the rotation limit power cylinder retracts, driving the rotation limit pin to move out of the rotation positioning hole. At this time, the rotation shaft can rotate freely on the rotation shaft support seat, thus facilitating the selection or adjustment of the pressure test head; the design of the rotation limit mechanism makes the rotation of the indenter mounting bracket more stable and reliable, improving the operation stability and pressure test accuracy of the equipment.

[0016] Further, a position-changing component is also provided on the pressure test frame. The position-changing component is arranged between the two pressure test adjusting components. The position-changing component includes a position-changing mounting plate. A pipe support plate and a pipe position-changing plate are provided on the position-changing mounting plate. The pipe support plate is installed on the pressure test frame. A plurality of V-shaped groove positions are provided on the pipe support plate. The V-shaped groove positions correspond to the pressure test heads. The pipe position-changing plate is installed on the pressure test frame in a liftable manner. Sawteeth are provided on the pipe position-changing plate. The convex parts of the sawteeth correspond to the concave parts of the V-shaped groove positions; a blanking inclined plate is provided on the position-changing mounting plate; at least two groups of the position-changing components are provided.

[0017] The beneficial effects of adopting the above further technical solution are as follows: The pipe support plate is used to support the pipe fittings. The pipe fittings are supported in the V-shaped groove positions of the pipe support plate. The pipe position-changing plate is driven to lift by a position-changing lifting cylinder. The position-changing lifting cylinder is installed on the pressure test frame. The telescopic movement of the piston rod of the position-changing lifting cylinder drives the pipe position-changing plate to lift. When the piston rod of the position-changing lifting cylinder extends and drives the pipe position-changing plate to rise, the pipe fittings on the pipe support plate are lifted by the pipe position-changing plate and leave the V-shaped groove position of the pipe support plate where they are located. When the pipe position-changing plate lifts the pipe fittings until they reach the highest point of the V-shaped groove position, due to the pipe fittings losing the blockage of the inner wall of the V-shaped groove position, under the action of the sawtooth slope on the pipe position-changing plate, the pipe fittings slide above the next V-shaped groove position. At this time, the piston rod of the position-changing lifting cylinder contracts, driving the pipe position-changing plate to descend, causing the pipe fittings to fall into the next V-shaped groove position of the pipe support plate, thereby realizing the position-changing operation of the pipe fittings in different groove positions on the pipe support plate. The design of the V-shaped groove positions enables the pipe fittings to be stably placed on the pipe support plate, avoiding shaking or moving during the pressure test, which affects the pressure test accuracy and safety; at least two groups of the position-changing components are provided, which can provide stable support for the pipe fittings and the pipe fittings can be more stable during the position-changing process. The blanking inclined plate is arranged at one end of the position-changing mounting plate away from the second material-transferring component. The end of the blanking inclined plate is inclined downward, facilitating the blanking operation of the pipe fittings after the pressure test.

[0018] Furthermore, the internal water blowing device includes an internal water blowing machine frame, on which a plurality of arc-shaped groove plates are provided. The two ends of the arc-shaped groove plates are installed on the internal water blowing machine frame through chains. An air blowing assembly is provided at the end of the internal water blowing machine frame. The air blowing assembly includes an alignment mounting plate, a water blowing alignment cylinder, and a plurality of air blowing heads provided on the alignment mounting plate. The alignment mounting plate is movably installed on the internal water blowing machine frame and is driven by the water blowing alignment cylinder. The plurality of air blowing heads are respectively connected to a gas supply device through a third air path, and a solenoid valve is provided on the third air path.

[0019] The beneficial effects of adopting the above further technical solutions are as follows: The arc-shaped groove plates are used to place pipe fittings. The pipe fittings move on the arc-shaped groove plates as the chains move. When there are pipe fittings on the arc-shaped groove plates, the air blowing assembly is activated, and the air blowing heads perform air blowing operations on the interiors of the pipe fittings to remove the residual moisture inside the pipe fittings. The design of the alignment mounting plate enables the air blowing heads to accurately align the pipe fittings, ensuring the accuracy and effectiveness of the air blowing operations. The setting of the solenoid valve can control the opening and closing of the air blowing heads, and can supply air only to the air blowing heads at the workstations with pipe fittings, thereby achieving precise control of the air blowing operations and avoiding unnecessary energy waste. The design of the internal water blowing device makes the removal of moisture inside the pipe fittings more efficient and automated, which is beneficial to improving the production efficiency and product quality of pipe fitting processing.

[0020] Furthermore, the flaw detection device includes a flaw detection machine frame, an external water blowing assembly, and a flaw detection assembly. The external water blowing assembly and the flaw detection assembly are respectively provided on the flaw detection machine frame. A pipe conveying mechanism is also provided on the flaw detection machine frame, and the pipe conveying mechanism sequentially passes through the external water blowing assembly and the flaw detection assembly. The flaw detection assembly includes a flaw detection moving plate, which is movably installed on the flaw detection machine frame. The moving direction of the flaw detection moving plate is perpendicular to the conveying direction of the pipe conveying mechanism. A plurality of flaw detection mechanisms are provided on the flaw detection moving plate. Pressing pipe assemblies are respectively provided at the rear end of the external water blowing assembly and at the front and rear ends of the flaw detection assembly. The pressing pipe assembly includes a pressing pipe power cylinder, and a pressing pipe roller is rotatably provided at the end of the piston rod of the pressing pipe power cylinder.

[0021] The beneficial effects of adopting the above further technical solutions are as follows: The pipe fitting is placed on the pipe conveying mechanism, and the pipe conveying mechanism drives the pipe fitting to pass through the external water blowing assembly and the flaw detection assembly in sequence. The external water blowing assembly performs a water blowing operation on the outside of the pipe fitting to remove the moisture on the outside of the pipe fitting, avoiding interference of the moisture with the subsequent flaw detection operation. The flaw detection moving plate of the flaw detection assembly moves on the flaw detection machine frame, so that the corresponding flaw detection mechanism can be selected according to the size of the pipe fitting, and the flaw detection mechanism on the flaw detection moving plate is used to perform flaw detection on the pipe fitting to detect whether there are defects or damages on the pipe fitting. By setting the pipe pressing assembly, when the pipe fitting passes through the external water blowing assembly and the flaw detection assembly, the piston rod of the pipe pressing power cylinder extends, driving the pipe pressing roller to press the pipe fitting, ensuring the stability of the pipe fitting during the external water blowing and flaw detection processes, and avoiding affecting the flaw detection accuracy and safety due to the shaking or movement of the pipe fitting; the pipe pressing roller is rotatably arranged at the end of the piston rod of the pipe pressing power cylinder, which can reduce the frictional resistance between the pipe pressing roller and the pipe fitting, making the pipe fitting more smooth during the conveying process.

[0022] Further, the first material transfer assembly is arranged on the flaw detection machine frame. The first material transfer assembly includes a jacking mechanism, a turning and blocking mechanism, and a guide plate. The jacking mechanism includes a jacking plate and a jacking power cylinder. The jacking power cylinder is installed on the flaw detection machine frame, and the end of the piston rod of the jacking power cylinder is connected to the jacking plate. A slope facing the internal water blowing device is provided on the upper surface of the jacking plate. A plurality of the guide plates are provided, and the plurality of guide plates are installed on the flaw detection machine frame. The guide plate is provided with an inclined surface inclined downward towards the internal water blowing device, and the height of the guide plate is greater than the height of the feeding end of the internal water blowing device; the turning and blocking mechanism includes a turning shaft, a turning plate, and a turning power cylinder. The turning power cylinder is installed on the flaw detection machine frame, the turning shaft is rotatably installed on the flaw detection machine frame, the turning plate is fixedly installed on the turning shaft, the end of the piston rod of the turning power cylinder is connected to the turning shaft through a connecting plate, one end of the connecting plate is fixedly connected to the turning shaft, and the other end of the connecting plate is hinged to the end of the piston rod of the turning power cylinder. An aggregate groove is provided on the side surface of the flaw detection machine frame, and the aggregate groove is arranged below the guide plate.

[0023] The beneficial effects of adopting the above further technical solution are as follows: After the pipe fittings are inspected by the flaw detection equipment, they are conveyed to the internal water blowing equipment by the first material transfer assembly. Specifically, as the piston rod of the lifting power cylinder extends, the lifting plate is driven to rise. The pipe fittings are lifted by the lifting plate and slide down along the slope on it to the guide plate. At this time, the piston rod of the turning material power cylinder retracts, and drives the turning material rotating shaft to rotate in the direction towards the internal water blowing equipment through the connecting plate. The turning material rotating plate rotates with the turning material rotating shaft, and the turning material rotating plate tilts downward towards the internal water blowing equipment. The pipe fittings slide down along the inclined surface of the guide plate to the turning material rotating plate and then slide from the turning material rotating plate into the arc-shaped groove plate of the internal water blowing equipment. The height design of the guide plate enables the pipe fittings to slide smoothly into the internal water blowing equipment, and at the same time avoids collision or damage of the pipe fittings during the sliding process. The aggregate chute is arranged on the side of the flaw detection machine frame and is located below the guide plate, and is used to collect the pipe fittings that fail the flaw detection. Specifically, when the flaw detection equipment determines that the pipe fittings are unqualified, before or at the same time as the piston rod of the lifting power cylinder extends to drive the lifting plate to rise and the pipe fittings are lifted by the lifting plate, the piston rod of the turning material power cylinder extends, and drives the turning material rotating shaft to rotate in the direction towards the flaw detection equipment through the connecting plate. The turning material rotating plate rotates with the turning material rotating shaft until the turning material rotating plate is in an upright state. After the pipe fittings slide down along the slope on the lifting plate to the guide plate, they are blocked by the turning material rotating plate and thus slide into the aggregate chute, realizing the automatic collection of waste pipes and avoiding the waste pipes from entering the subsequent detection procedures.

[0024] Furthermore, the second material transfer assembly is arranged on the pressure testing machine frame. The second material transfer assembly includes a buffer rack, an alignment mechanism and a feeding mechanism. The buffer rack is installed on the pressure testing machine frame. A plurality of storage plates are arranged at the top of the buffer rack. A baffle plate is arranged at one end of the storage plate close to the pressure testing machine frame. A blanking plate is connected to the top of the baffle plate. The feeding mechanism includes a feeding lifting cylinder. The feeding lifting cylinder is installed on one side of the pressure testing machine frame. There are a plurality of the feeding lifting cylinders. The end parts of the piston rods of the plurality of feeding lifting cylinders are connected with a lifting connecting rod. A plurality of pushing plates are arranged on the lifting connecting rod. An inclined surface is arranged on the top surface of the pushing plate; An upper feeding inclined plate is arranged at one end of the transposition mounting plate close to the second material transfer assembly; The alignment mechanism includes two relatively arranged pressure testing alignment cylinders. The pressure testing alignment cylinders are arranged outside the two ends of the lifting connecting rod. The end parts of the piston rods of the pressure testing alignment cylinders are connected with alignment top plates.

[0025] The beneficial effects of adopting the above further technical solution are as follows: After the pipe fitting completes the internal blow - water operation, it is conveyed to the pressure - testing equipment by the second transfer component. After the pipe fitting completes the internal blow - water operation on the internal blow - water equipment, the pipe fitting is driven to one side of the internal blow - water equipment through the chain and the arc - shaped groove plate. When the chain continues to rotate and the arc - shaped groove plate starts to rotate downward under the drive of the chain, the pipe fitting drops from the arc - shaped groove plate and lands on the storage plate of the buffer rack. The pipe fitting is blocked by the baffle plate. The design of the storage plate and the baffle plate enables the pipe fitting to be placed stably, avoiding the pipe fitting from dropping during the transfer process, and the pipe fitting can wait for the instruction of the pressure - testing equipment on the storage plate; When it is necessary to convey the pipe fitting, the piston rod of the feeding lifting cylinder extends, driving the lifting connecting rod and the material - pushing plate to rise, driving the pipe fitting to rise until the pipe fitting rises to the top of the baffle plate. The inclined - surface design of the material - pushing plate enables the pipe fitting to slide along the inclined surface to the blanking plate on the top of the baffle plate after being lifted, and then slide along the blanking plate to the feeding inclined plate. The pipe fitting slides from the feeding inclined plate to the pipe support plate, thus realizing the conveying operation of the pipe fitting. The feeding inclined plate is arranged at one end of the transposition mounting plate close to the second transfer component, enabling the pipe fitting to slide smoothly onto the pipe support plate of the transposition component, and at the same time avoiding the pipe fitting from colliding or being damaged during the sliding process. When the pipe fitting is temporarily stored on the storage plate, the piston rods of the two pressure - testing alignment cylinders of the alignment mechanism extend, driving the alignment top plate to move, thereby performing an alignment operation on the pipe fitting, ensuring the accurate positions of both ends of the pipe fitting, and avoiding the pipe fitting from being skewed, which may affect the subsequent pressure - testing operation. The design of the second transfer component realizes the automatic transfer of the pipe fitting from the internal blow - water equipment to the pressure - testing equipment, improves the operation efficiency and automation degree of the equipment, and is also conducive to ensuring the stability and safety of the pipe fitting during the transfer process.

[0026] After the pipe fitting completes the pressure - testing operation, it is conveyed to the second transfer component for subsequent transfer and processing. The buffer rack is used to temporarily store the pipe fittings. Multiple slots for placing the pipe fittings are provided on the storage plate. The design of the baffle plate prevents the pipe fittings from sliding off the storage plate. When it is necessary to transfer the pipe fitting, the piston rod of the feeding lifting cylinder extends, driving the lifting connecting rod and the material - pushing plate to rise. The inclined - surface design of the material - pushing plate enables the pipe fitting to slide along the inclined surface to the feeding inclined plate on the transposition mounting plate after being lifted, thus realizing the automatic transfer of the pipe fitting from the buffer rack to the pressure - testing component. The feeding inclined plate is arranged at one end of the transposition mounting plate close to the second transfer component. The pipe fitting slides along the feeding inclined plate onto the transposition mounting plate, facilitating the subsequent transposition operation. At the same time, by setting the alignment mechanism, before the pipe fitting is lifted and slides onto the feeding inclined plate, the piston rod of the pressure - testing alignment cylinder extends, driving the alignment top plate to perform an alignment operation on the pipe fitting, ensuring that the pipe fitting can slide accurately and stably onto the feeding inclined plate, and avoiding the pipe fitting from shifting or colliding during the sliding process, which may affect the accuracy and safety of the subsequent pressure - testing operation.

[0027] The design of the first material transfer component and the second material transfer component realizes the automatic transfer of pipe fittings from the flaw detection equipment to the internal blow water equipment, the automatic collection of waste pipes, and the automatic and efficient transfer of pipe fittings from the internal blow water equipment to the pressure testing equipment. At the same time, it ensures the stability and accuracy of the pipe fittings during the transfer process, which is beneficial to improving the operation efficiency of the equipment and the pressure testing accuracy. It is also beneficial to ensure the stability and safety of the pipe fittings during the transfer process. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a three-dimensional structure schematic diagram of the present invention; Figure 2 is a side view of the present invention; Figure 3 is a top view of the present invention; Figure 4 is a three-dimensional structure schematic diagram of the pressure testing equipment of the present invention; Figure 5 is Figure 4 an enlarged view of part A of Figure 6 is Figure 4 an enlarged view of part C of Figure 7 is the front view of the pressure testing equipment; Figure 8 is the rear view of the pressure testing equipment; Figure 9 is the top view of the pressure testing equipment; Figure 10 is a three-dimensional structure schematic diagram of the flaw detection equipment; Figure 11 is Figure 10 an enlarged view of part B of Figure 12 is Figure 10 an enlarged view of part D of Figure 13 is the side view of the flaw detection equipment; Figure 14 is a three-dimensional structure schematic diagram of the internal blow water equipment of the present invention; Figure 15 is Figure 14 an enlarged view of part E of Figure 16 is the top view of the internal blow water equipment of the present invention.

[0029] The reference numerals are recorded as follows: 100, flaw detection equipment; 101, flaw detection machine frame; 102, external water blowing assembly; 103, pipe conveying mechanism; 1031, conveying roller; 104, flaw detection moving plate; 105, flaw detection guide rail; 106, flaw detection mechanism; 107, pipe pressing power cylinder; 108, pipe pressing roller; 109, installation support plate; 110, shaft seat plate; 111, feeding guiding inclined plate; 200, internal water blowing equipment; 201, internal water blowing machine frame; 202, arc groove plate; 203, chain; 204, alignment installation plate; 205, air blowing head; 206, water blowing alignment cylinder; 300, pressure testing equipment; 301, pressure testing machine frame; 302, pressure testing base plate; 303, pressure head mounting frame; 304, mounting frame body; 305, pressure head mounting plate; 306, frame end plate; 307, connecting plate; 308, reinforcing plate; 309, pressure testing head; 310, rotating shaft; 311, rotating shaft support seat; 312, rotating drive disc; 3121, drive pin hole; 313, quick plug; 314, quick socket; 315, moving seat; 316, tensioning power cylinder; 317, quick plug power cylinder; 318, five-way high-pressure valve; 319, high-pressure solenoid valve; 320, stop power cylinder; 321, rotating positioning disc; 3211, rotating positioning hole; 323, rotating limit pin; 324, pipe support plate; 325, pipe transposition plate; 326, drive seat; 327, plug-in driving cylinder; 328, driving pin; 329, transposition installation plate; 330, blanking inclined plate; 331, feeding inclined plate; 400, first material transfer assembly; 401, lifting power cylinder; 402, lifting plate; 403, material guiding plate; 404, turning shaft; 405, turning plate; 406, turning power cylinder; 407, connecting plate; 408, aggregate chute; 500, second material transfer assembly; 501, buffer rack; 502, storage plate; 503, baffle; 504, feeding lifting cylinder; 505, lifting connecting rod; 506, blanking plate; 507, ejector plate; 508, pressure testing alignment cylinder; 509, alignment top plate. Detailed implementation manners

[0030] The principles and features of the present invention will be described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0031] Refer to Figures 1-16 , a pipe fitting leak point detection device, including a flaw detection device 100, an internal water blowing device 200 and a pressure testing device 300. A first material transfer assembly 400 is provided between the flaw detection device 100 and the internal water blowing device 200, and a second material transfer assembly 500 is provided between the internal water blowing device 200 and the pressure testing device 300.

[0032] Specifically, in this embodiment, refer to Figures 4-9, the pressure test equipment 300 includes a pressure test frame 301, on which there are two groups of pressure test adjustment components arranged oppositely. The pressure test adjustment component includes a pressure test substrate 302, which is movably installed on the pressure test frame 301; the movement of the pressure test substrate 302 on the pressure test frame 301 is realized by a substrate guide rail and a substrate moving power cylinder. The substrate guide rail and the substrate moving power cylinder are installed on the pressure test frame 301. The pressure test substrate 302 is slidably arranged on the substrate guide rail, and the piston rod end of the substrate moving power cylinder is connected to the pressure test substrate 302. Since the pressure test substrate 302 is movably installed on the pressure test frame 301, the components of the pressure test adjustment component can move on the pressure test frame 301. In addition to being able to conveniently align with the pipe fitting port for pressing and testing, the movement stroke of the pressure test substrate 302 of one group of the pressure test adjustment components can be set larger, that is, the length of the substrate guide rail can be set longer, so that the distance between the two groups of pressure test adjustment components can be adjusted, enabling the pressure test equipment 300 of the present invention to be adapted to the pressure test of pipe fittings with different length dimensions. The pressure test substrate 302 is provided with a pressure head mounting frame 303, a rotation limiting mechanism, a quick insertion mechanism and a rotation driving mechanism. The pressure head mounting frame 303 is rotatably installed on the pressure test substrate 302. Specifically, the pressure head mounting frame 303 includes a mounting frame body 304 and a plurality of pressure head mounting plates 305 arranged circumferentially along the mounting frame body 304. The mounting frame body 304 includes two frame end plates 306. Radially arranged a plurality of connecting plates 307 on the frame end plates 306. The two ends of the pressure head mounting plate 305 are respectively connected to the connecting plates 307. In order to improve the strength of the mounting frame body 304, a reinforcing plate 308 is also provided between two opposite connecting plates 307. The pressure head mounting plate 305 is provided with a plurality of pressure test heads 309. In order to improve the processing efficiency, the pressure head mounting plate 305 is provided with a plurality of pressure test heads 309. The plurality of pressure test heads 309 on each pressure head mounting plate 305 are arranged side by side at intervals, reserving the position for the pressure test pipe fitting. Different specifications of pressure test heads 309 are set on different pressure head mounting plates 305, so as to meet the pressure test requirements of pipe fittings with different sizes. By rotating the pressure head mounting frame 303 to select different specifications of pressure test heads 309 for pressure testing, the installation position of the pressure test head 309 on the pressure head mounting plate 305 can be set differently according to the specification of the pressure test head 309, so that the height of the pressure test head 309 can be adapted to the size of the pipe fitting.

[0033] The rotation drive mechanism is used to provide the power for the rotation of the indenter mounting plate 305. Specifically, in this embodiment, the rotation drive mechanism includes a rotating shaft 310, a rotating shaft support seat 311, a rotation drive disk 312, and a rotation power cylinder. There are two symmetrically arranged rotating shaft support seats 311, and the two rotating shaft support seats 311 are installed on the pressure test substrate 302. The two ends of the rotating shaft 310 are rotatably installed on the rotating shaft support seats 311. The indenter mounting frame 303 is installed on the rotating shaft 310. The rotation drive disk 312 is installed at the end of the rotating shaft 310. The rotation power cylinder is installed on the pressure test substrate 302, and the piston rod of the rotation power cylinder is connected to the rotation drive disk 312 through a rotation pin mechanism.

[0034] The rotation pin mechanism includes a drive seat 326, a plugging drive cylinder 327, and a drive pin 328. The drive seat 326 is movably installed on the pressure test substrate 302. The piston rod of the rotation power cylinder is connected to the drive seat 326. The plugging drive cylinder 327 is installed on the drive seat 326. The end of the piston rod of the plugging drive cylinder 327 is connected to the drive pin 328. A plurality of drive pin holes 3121 corresponding to the drive pin 328 are provided on the rotation drive disk 312. The specific structure of the rotation power cylinder of the present invention is not limited as long as it can drive the drive seat 326 to move on the pressure test substrate 302. In this embodiment, the rotation power cylinder is a cylinder. By the telescopic movement of the piston rod of the rotation power cylinder, the drive seat is driven to reciprocate on the pressure test substrate 302, and by the telescopic movement of the piston rod of the plugging drive cylinder 327, the drive pin 328 is driven to insert into the corresponding drive pin hole 3121, so as to realize the drive of the rotation drive disk 312. Specifically, when the piston rod of the rotation power cylinder extends, the drive seat 326 is driven to move to one side of the rotation drive disk 312, the piston rod of the plugging drive cylinder 327 extends, and the drive pin 328 is driven to insert into the drive pin hole 3121. Then the piston rod of the rotation power cylinder retracts, driving the drive seat 326 to move in the reverse direction, thereby driving the plugging drive cylinder 327 and the drive pin 328 to move. The drive pin 328 drives the rotation drive disk 312 to rotate a fixed angle. By adjusting the stroke of the piston rod of the rotation power cylinder, it can be ensured that the distance of each movement of the drive pin 328 is certain, so that the drive pin 328 drives the rotation drive disk 312 to rotate a certain angle each time, making the angle of rotation of the rotation drive disk 312 driving the rotating shaft 310 fixed, so as to ensure that the pressure test head 309 can be in an accurate position after each rotation. The rotation pin mechanism ensures the stable connection between the rotation power cylinder and the rotation drive disk 312, makes the selection process of the pressure test head 309 more stable and reliable, and improves the operation stability and pressure test accuracy of the equipment.

[0035] The quick-insert mechanism is used to limit the pressure head mounting plate 305 and supply air to the pressure test head 309. Specifically, the quick-insert mechanism includes a quick plug 313, a quick socket 314, a moving seat 315, a tensioning power cylinder 316, and a quick-insert power cylinder 317. The moving seat 315 is movably installed on the pressure test base plate 302. Specifically, quick-insert guide rails are provided on the pressure test base plate 302, and the moving seat 315 is slidably installed on the quick-insert guide rails. The quick plug 313 and the tensioning power cylinder 316 are installed on the moving seat 315. The end of the piston rod of the tensioning power cylinder 316 is connected to the quick plug 313. The quick socket 314 is installed on the pressure head mounting frame 303. Specifically, the quick socket 314 is installed on the connection end plate. The number of quick sockets 314 is set corresponding to the number of pressure head mounting plates 305. A plurality of air passages I are provided on the piston rod of the tensioning power cylinder 316, and the air passages I are communicated with the quick plug 313. A plurality of plug holes are correspondingly provided on the quick plug 313. A plurality of air passages II are provided in the pressure head mounting plate 305, and the plurality of air passages II are respectively communicated with the quick socket 314 and the pressure test head 309 installed on the pressure head mounting plate 305. A plurality of socket holes are provided on the quick socket 314. The tensioning power cylinder 316 is connected to the air supply device through a five-way high-pressure valve 318 and a high-pressure solenoid valve 319. The effect of supplying air to a single pressure test head 309 is achieved through the five-way high-pressure valve 318 and the high-pressure solenoid valve 319, so that the pressure test device 300 of the present invention can be adapted to the operation of single pipe fitting pressure test or multiple pipe fittings pressure test at the same time. The quick-insert power cylinder 317 is installed on the pressure test base plate 302, and the piston rod of the quick-insert power cylinder 317 is connected to the moving seat 315. The moving seat 315 is driven to move by the telescopic movement of the piston rod of the quick-insert power cylinder 317, so as to realize the quick insertion of the quick plug 313 and the quick socket 314.

[0036] A stop mechanism is further provided on the pressure test frame 301. The stop mechanism includes a stop power cylinder 320. The end of the piston rod of the stop power cylinder 320 passes through the pressure test base plate 302. The end of the piston rod of the stop power cylinder 320 is connected to a stop pin (not shown in the figure). A plurality of stop limit holes are provided at the bottom of the moving seat 315. The position of the moving seat 315 is stopped by inserting the stop pin of the stop mechanism into the stop limit holes at the bottom of the moving seat 315, so as to improve the stability of the present invention.

[0037] The rotation limiting mechanism is used to limit the rotation of the indenter mounting bracket 303. Specifically, the rotation limiting mechanism includes a rotation positioning disk 321 and a rotation limiting power cylinder. The rotation positioning disk 321 is installed at the end of the rotating shaft 310. A plurality of rotation positioning holes 3211 are provided in the circumferential direction of the rotation positioning disk 321. The rotation positioning holes 3211 are provided in plurality along the circumferential direction on the outer side surface of the rotation positioning disk 321. The rotation positioning holes 3211 are arranged corresponding to the positions of a plurality of indenter mounting plates 305 on the indenter mounting bracket 303. A rotation limiting pin 323 is provided at the end of the piston rod of the rotation limiting power cylinder. By inserting the rotation limiting pin 323 into the rotation positioning hole 3211 on the rotation positioning disk 321, the locking of the rotation positioning disk 321 is realized, the rotation of the rotation positioning disk 321 is limited, and thus the position of the pressure test head 309 is locked.

[0038] A position changing assembly is further provided on the pressure test machine frame 301. The position changing assembly is arranged between the two pressure test adjusting assemblies. The position changing assembly includes a position changing mounting plate 329. The position changing mounting plate 329 is movably installed on the pressure test machine frame 301, so that the positions of the components of the position changing assembly on the pressure test machine frame 301 can be adjusted. A pipe support plate 324 and a pipe position changing plate 325 are provided on the position changing mounting plate 329. The pipe support plate 324 is installed on the pressure test machine frame 301. A plurality of V-shaped groove positions are provided on the pipe support plate 324. The V-shaped groove positions are arranged corresponding to the pressure test head 309. The pipe is supported by the pipe support plate 324, and the V-shaped groove positions can provide stable support for the pipe. The pipe position changing plate 325 is installed on the pressure test machine frame 301 in a liftable manner. Specifically, a position changing cylinder is provided on the pressure test machine frame 301. The end of the piston rod of the position changing cylinder is connected to the pipe position changing plate 325. Sawteeth are provided on the pipe position changing plate 325. The convex parts of the sawteeth are arranged corresponding to the concave parts of the V-shaped groove positions. By the elongation of the piston rod of the position changing cylinder, the pipe position changing plate 325 is driven to rise, so that the height of the sawteeth on the pipe position changing plate 325 gradually exceeds the height of the V-shaped groove positions, and thus the pipe on the V-shaped groove positions is lifted. After the pipe is lifted away from the V-shaped groove positions, under the action of the slope of the sawteeth, the pipe slides to the next V-shaped groove position, realizing the effect of changing the position of the pipe. A blanking inclined plate 330 is provided on the position changing mounting plate 329. One end height of the blanking inclined plate 330 is flush with the end of the pipe support plate 324. The other end of the blanking inclined plate 330 is inclined downward towards the outside of the pressure test machine frame 301, so as to convey the pipe that has completed the pressure test for discharging. At least two groups of the position changing assemblies are provided. In this embodiment, four groups of the position changing assemblies are provided, so as to provide stable support for the pipe and ensure the stability of the pipe during the position changing process.

[0039] See Figures 14-16The inner water blowing device 200 includes an inner water blowing frame 201, on which a plurality of arc-shaped slot plates 202 are arranged, and both ends of the arc-shaped slot plates 202 are mounted on the inner water blowing frame 201 through chains 203, and the chain 203 is driven by a motor, and the motor drives the chain 203 to rotate, thereby driving the arc-shaped slot plates 202 on the chain 203 to move, so as to realize the movement of the pipe fittings in the inner water blowing device 200, and an air blowing component is arranged at the end of the inner water blowing frame 201, and the air blowing component includes an alignment mounting plate 204, a water blowing alignment cylinder 206, and a plurality of air blowing heads 205 arranged on the alignment mounting plate 204, and the alignment mounting plate 204 is movably mounted on the inner water blowing frame 201. The water blowing alignment cylinder 206 is installed on the inner water blowing frame 201, and the piston rod end of the water blowing alignment cylinder 206 is connected to the alignment mounting plate 204. The alignment mounting plate 204 is driven to move by the water blowing alignment cylinder 206, thereby driving the blowing head 205 to move, so as to achieve blowing at the port of the pipe fitting. The multiple blowing heads 205 are respectively connected to the air supply equipment through the air circuit three, and the air circuit three is a pipeline connecting the blowing head 205 and the air supply equipment; the air circuit three is provided with an electromagnetic valve, and the air supply to each blowing head 205 is opened and closed by the multiple electromagnetic valves, so as to avoid the blowing work of multiple blowing stations as long as the air supply equipment is started, reduce the waste of compressed air, and also reduce the energy consumption of the compressor.

[0040] See also Figures 10-13, the flaw detection device 100 includes a flaw detection frame 101, an external water blowing assembly 102 and a flaw detection assembly. The external water blowing assembly 102 and the flaw detection assembly are respectively arranged on the flaw detection frame 101. A pipe conveying mechanism 103 is further arranged on the flaw detection frame 101. The pipe conveying mechanism 103 sequentially passes through the external water blowing assembly 102 and the flaw detection assembly. The flaw detection assembly includes a flaw detection moving plate 104. The flaw detection moving plate 104 is movably installed on the flaw detection frame 101. Specifically, a flaw detection guide rail 105 is arranged on the flaw detection frame 101. The flaw detection moving plate 104 is slidably installed on the flaw detection guide rail 105. The moving direction of the flaw detection moving plate 104 is perpendicular to the conveying direction of the pipe conveying mechanism 103. A plurality of flaw detection mechanisms 106 are arranged on the flaw detection moving plate 104 to adapt to the flaw detection operations of pipe fittings with different pipe diameters. The pipe conveying mechanism 103 includes a conveying motor and a plurality of conveying rollers 1031. The conveying motor is in transmission connection with the conveying rollers 1031. The middle part of the conveying roller 1031 is designed in a V shape. The pipe fitting is conveyed in the middle part of the conveying roller 1031. The V-shaped design in the middle part of the conveying roller 1031 can provide more stable support for the pipe fitting and prevent the pipe fitting from moving around. A plurality of feeding guiding inclined plates 111 are arranged at the feeding end of the flaw detection frame 101. The plurality of feeding guiding inclined plates 111 are arranged in parallel. The feeding guiding inclined plates 111 are inclined downward towards the flaw detection frame 101 to provide a guiding effect on the feeding process of the pipe fitting on the flaw detection frame 101.

[0041] Pressure pipe assemblies are respectively arranged at the rear end of the external water blowing assembly 102 and the front and rear ends of the flaw detection assembly. The pressure pipe assembly includes a pressure pipe power cylinder 107. A pressure pipe roller 108 is rotatably arranged at the end of the piston rod of the pressure pipe power cylinder 107. A pressure pipe rolling groove is arranged along the circumference of the pressure pipe roller 108. The radian of the pressure pipe rolling groove is adapted to the radian of the pipe fitting, which is convenient for pressing the pipe fitting. The pipe fitting on the pipe conveying mechanism 103 is pressed by the pressure pipe assembly without affecting the pipe fitting conveying, thereby improving the stability of the pipe fitting conveying and ensuring the effects of external water blowing and flaw detection.

[0042] The first material transfer assembly 400 is arranged on the flaw detection frame 101. The first material transfer assembly 400 includes a lifting mechanism, a material turning and blocking mechanism, and a guide plate 403. The lifting mechanism includes a lifting plate 402 and a lifting power cylinder 401. The lifting power cylinder 401 is installed on the flaw detection frame 101. The end of the piston rod of the lifting power cylinder 401 is connected to the lifting plate 402. A slope facing the internal water blowing device 200 is provided on the upper surface of the lifting plate 402. A plurality of guide plates 403 are provided. The plurality of guide plates 403 are installed on the flaw detection frame 101. The guide plate 403 is provided with an inclined surface that slopes downward toward the internal water blowing device 200. The height of the guide plate 403 is greater than the height of the feed end of the internal water blowing device 200. The material turning and blocking mechanism includes a material turning rotating shaft 404, a material turning plate 405, and a material turning power cylinder 406. The material turning power cylinder 406 is installed on the flaw detection frame 101. The material turning rotating shaft 404 is rotatably installed on the flaw detection frame 101. Specifically, a plurality of mounting support plates 109 are provided on the flaw detection frame 101. A shaft seat plate 110 is provided at the top of the mounting support plate 109. The material turning rotating shaft 404 is rotatably installed on the shaft seat plate 110. The material turning plate 405 is fixedly installed on the material turning rotating shaft 404. The end of the piston rod of the material turning power cylinder 406 is connected to the material turning rotating shaft 404 through a connecting plate 407. One end of the connecting plate 407 is fixedly connected to the material turning rotating shaft 404. The other end of the connecting plate 407 is hinged to the end of the piston rod of the material turning power cylinder 406. An aggregate groove 408 is provided on the side of the flaw detection frame 101. The aggregate groove 408 is provided below the guide plate 403. The material turning rotating shaft 404 and the material turning plate 405 are provided on the side of the aggregate groove 408 away from the flaw detection frame 101. When the flaw detection mechanism 106 detects that the pipe fitting is damaged and does not meet the use requirements and cannot be subjected to subsequent detection, it is determined that the pipe fitting is a waste product. At this time, the piston rod of the material turning power cylinder 406 extends, driving the connecting plate 407 to rotate. The connecting plate 407 drives the material turning rotating shaft 404 to rotate toward the flaw detection frame 101, thereby driving a plurality of material turning plates 405 on the material turning rotating shaft 404 to rotate until the material turning plates 405 are in an upright state to block the waste material, so that the waste material enters the aggregate groove 408 under the guiding action of the guide plate 403 for collection and storage, waiting for subsequent processing;When the flaw detection mechanism 106 detects that the pipe fitting has no flaw and subsequent pressure test operations can be carried out, it is determined that the pipe fitting is a normal material. At this time, the piston rod of the turnover power cylinder 406 retracts, driving the connecting plate 407 to rotate away from the flaw detection machine frame 101. The connecting plate 407 drives the turnover rotating shaft 404 to rotate, thereby driving a plurality of turnover plates 405 on the turnover rotating shaft 404 to rotate to be inclined with the top surface facing the inner water blowing device 200, so that the pipe fitting slides onto the turnover plate 405 under the guiding action of the guide plate 403 and slides towards the inner water blowing device 200 under the guiding action of the turnover plate 405, so that the pipe fitting can enter the inner water blowing device 200 for subsequent detection.;

[0043] The second transfer assembly 500 is arranged on the pressure test machine frame 301. The second transfer assembly 500 includes a buffer rack 501, an alignment mechanism and a feeding mechanism. The buffer rack 501 is installed on the pressure test machine frame 301. A plurality of storage plates 502 are arranged at the top of the buffer rack 501. A baffle plate 503 is arranged at one end of the storage plate 502 close to the pressure test machine frame 301. A blanking plate 506 is connected to the top of the baffle plate 503. The end of the blanking plate 506 is arranged to be inclined downward towards the pressure test machine frame 301. The feeding mechanism includes a feeding lifting cylinder 504. The feeding lifting cylinder 504 is installed on one side of the pressure test machine frame 301. A plurality of feeding lifting cylinders 504 are provided. The piston rod ends of the plurality of feeding lifting cylinders 504 are connected with a lifting connecting rod 505. A plurality of ejector plates 507 corresponding to the storage plates 502 are arranged on the lifting connecting rod 505. An inclined surface inclined downward towards the pressure test machine frame 301 is arranged on the top surface of the ejector plate 507; One end of the transposition mounting plate 329 close to the second transfer assembly 500 is provided with a feeding inclined plate 331. The end of the feeding inclined plate 331 is arranged to be inclined towards the pipe support plate 324. One end of the feeding inclined plate 331 is lower in height than the blanking plate 506, and the other end of the feeding inclined plate 331 is flush with the end of the pipe support plate 324 in height; The alignment mechanism includes two relatively arranged pressure test alignment cylinders 508. The pressure test alignment cylinders 508 are arranged outside the two ends of the lifting connecting rod 505. The piston rod ends of the pressure test alignment cylinders 508 are connected with alignment top plates 509.

[0044] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A pipe fitting leak point detection device, including a flaw detection device (100), characterized in that, It further includes an internal water blowing device (200) and a pressure testing device (300). A first material transfer assembly (400) is provided between the flaw detection device (100) and the internal water blowing device (200), and a second material transfer assembly (500) is provided between the internal water blowing device (200) and the pressure testing device (300). The pressure testing device (300) includes a pressure testing frame (301). Two groups of pressure testing adjustment assemblies are provided on the pressure testing frame (301), and the two groups of pressure testing adjustment assemblies are arranged oppositely. The pressure testing adjustment assembly includes a pressure testing base plate (302), the pressure testing base plate (302) is movably installed on the pressure testing frame (301), a pressure head mounting frame (303), a rotation limiting mechanism, a quick plugging mechanism and a rotation driving mechanism are provided on the pressure testing base plate (302). The pressure head mounting frame (303) is rotatably installed on the pressure testing base plate (302). A plurality of pressure head mounting plates (305) are circumferentially provided on the pressure head mounting frame (303), and a plurality of pressure testing heads (309) are provided on the pressure head mounting plates (305). The rotation limiting mechanism is used to limit the rotation of the pressure head mounting frame (303), the quick plugging mechanism is used to limit the pressure head mounting plate (305) and supply air to the pressure testing head (309), and the rotation driving mechanism is used to provide the power for the rotation of the pressure head mounting plate (305).

2. The pipe fitting leakage point detection device according to claim 1, characterized in that, The rotation driving mechanism includes a rotation shaft (310), a rotation shaft support seat (311), a rotation driving disc (312) and a rotation power cylinder. Two rotation shaft support seats (311) are symmetrically provided. The two rotation shaft support seats (311) are installed on the pressure testing base plate (302). The two ends of the rotation shaft (310) are rotatably installed on the rotation shaft support seats (311). The pressure head mounting frame (303) is installed on the rotation shaft (310). The rotation driving disc (312) is installed at the end of the rotation shaft (310). The rotation power cylinder is installed on the pressure testing base plate (302), and the piston rod of the rotation power cylinder is connected to the rotation driving disc (312) through a rotation pin mechanism.

3. The pipe fitting leak point detection device according to claim 2, wherein The rotation pin mechanism includes a driving seat (326), a plugging driving cylinder (327) and a driving pin (328). The driving seat (326) is movably installed on the pressure testing base plate (302). The piston rod of the rotation power cylinder is connected to the driving seat (326). The plugging driving cylinder (327) is installed on the driving seat (326). The end of the piston rod of the plugging driving cylinder (327) is connected to the driving pin (328). A plurality of driving pin holes (3121) corresponding to the driving pin (328) are provided on the rotation driving disc (312).

4. The pipe fitting leakage point detection device according to claim 3, wherein, The quick-insert mechanism includes a quick plug (313), a quick socket (314), a moving seat (315), a tensioning power cylinder (316), and a quick-insert power cylinder (317). The moving seat (315) is movably installed on the pressure test base plate (302). The quick plug (313) and the tensioning power cylinder (316) are installed on the moving seat (315). The end of the piston rod of the tensioning power cylinder (316) is connected to the quick plug (313). The quick socket (314) is installed on the pressure head mounting frame (303). The number of the quick sockets (314) is set corresponding to the number of the pressure head mounting plates (305). An air passage 1 is arranged inside the piston rod of the tensioning power cylinder (316), and the air passage 1 is communicated with the quick plug (313). An air passage 2 is arranged inside the pressure head mounting plate (305), and the air passage 2 is respectively communicated with the quick socket (314) and the pressure test head (309) installed on the pressure head mounting plate (305). The quick-insert power cylinder (317) is installed on the pressure test base plate (302), and the piston rod of the quick-insert power cylinder (317) is connected to the moving seat (315).

5. The pipe fitting leak point detection device according to claim 4, characterized in that, The rotation limit mechanism includes a rotation positioning disc (321) and a rotation limit power cylinder. The rotation positioning disc (321) is installed at the end of the rotation shaft (310). The end of the piston rod of the rotation limit power cylinder is provided with a rotation limit pin (323). A plurality of rotation positioning holes (3211) are circumferentially arranged on the rotation positioning disc (321).

6. The pipe fitting leak point detection device according to claim 1, characterized in that, A position-changing assembly is further arranged on the pressure test machine frame (301). The position-changing assembly is arranged between two of the pressure test adjusting assemblies. The position-changing assembly includes a position-changing mounting plate (329). A pipe support plate (324) and a pipe position-changing plate (325) are arranged on the position-changing mounting plate (329). The pipe support plate (324) is installed on the pressure test machine frame (301). A plurality of V-shaped groove positions are arranged on the pipe support plate (324), and the V-shaped groove positions are set corresponding to the pressure test heads (309). The pipe position-changing plate (325) is liftably installed on the pressure test machine frame (301). Sawteeth are arranged on the pipe position-changing plate (325), and the convex parts of the sawteeth are set corresponding to the concave parts of the V-shaped groove positions. A blanking inclined plate (330) is arranged on the position-changing mounting plate (329). At least two groups of the position-changing assemblies are provided.

7. The pipe fitting leak point detection device according to any one of claims 1-6, characterized in that, The internal water blowing device (200) includes an internal water blowing machine frame (201). A plurality of arc-shaped groove plates (202) are provided on the internal water blowing machine frame (201). Both ends of the arc-shaped groove plates (202) are installed on the internal water blowing machine frame (201) through chains (203). A blowing component is provided at the end of the internal water blowing machine frame (201). The blowing component includes an alignment mounting plate (204), a water blowing alignment cylinder (206), and a plurality of blowing heads (205) provided on the alignment mounting plate (204). The alignment mounting plate (204) is movably installed on the internal water blowing machine frame (201) and is driven by the water blowing alignment cylinder (206). The plurality of blowing heads (205) are respectively connected to a gas supply device through a third gas path, and a solenoid valve is provided on the third gas path.

8. The pipe fitting leak point detection device according to claim 7, characterized in that, The flaw detection device (100) includes a flaw detection machine frame (101), an external water blowing component (102), and a flaw detection component. The external water blowing component (102) and the flaw detection component are respectively provided on the flaw detection machine frame (101). A pipe conveying mechanism (103) is further provided on the flaw detection machine frame (101). The pipe conveying mechanism (103) sequentially passes through the external water blowing component (102) and the flaw detection component. The flaw detection component includes a flaw detection moving plate (104). The flaw detection moving plate (104) is movably installed on the flaw detection machine frame (101). The moving direction of the flaw detection moving plate (104) is perpendicular to the conveying direction of the pipe conveying mechanism (103). A plurality of flaw detection mechanisms (106) are provided on the flaw detection moving plate (104). Pressing pipe components are respectively provided at the rear end of the external water blowing component (102) and at the front and rear ends of the flaw detection component. The pressing pipe component includes a pressing pipe power cylinder (107), and a pressing pipe roller (108) is rotatably provided at the end of the piston rod of the pressing pipe power cylinder (107).

9. The pipe fitting leak point detection device according to claim 8, wherein, The first material transfer assembly (400) is arranged on the flaw detection machine frame (101). The first material transfer assembly (400) includes a jacking mechanism, a material turning and blocking mechanism, and a material guide plate (403). The jacking mechanism includes a jacking plate (402) and a jacking power cylinder (401). The jacking power cylinder (401) is installed on the flaw detection machine frame (101). The piston rod end of the jacking power cylinder (401) is connected to the jacking plate (402). A slope facing the internal water blowing device (200) is provided on the upper surface of the jacking plate (402). A plurality of material guide plates (403) are provided. The plurality of material guide plates (403) are installed on the flaw detection machine frame (101). The material guide plate (403) is provided with an inclined surface that slopes downward toward the internal water blowing device (200). The height of the material guide plate (403) is greater than the height of the feed end of the internal water blowing device (200). The material turning and blocking mechanism includes a material turning rotating shaft (404), a material turning rotating plate (405), and a material turning power cylinder (406). The material turning power cylinder (406) is installed on the flaw detection machine frame (101). The material turning rotating shaft (404) is rotatably installed on the flaw detection machine frame (101). The material turning rotating plate (405) is fixedly installed on the material turning rotating shaft (404). The piston rod end of the material turning power cylinder (406) is connected to the material turning rotating shaft (404) through a connecting plate (407). One end of the connecting plate (407) is fixedly connected to the material turning rotating shaft (404), and the other end of the connecting plate (407) is hinged to the piston rod end of the material turning power cylinder (406). An aggregate chute (408) is provided on the side of the flaw detection machine frame (101). The aggregate chute (408) is arranged below the material guide plate (403).

10. The pipe fitting leak point detection device according to claim 6, characterized in that, The second material transfer assembly (500) is arranged on the pressure testing machine frame (301). The second material transfer assembly (500) includes a buffer rack (501), an alignment mechanism and a feeding mechanism. The buffer rack (501) is installed on the pressure testing machine frame (301). A plurality of material storage plates (502) are provided at the top of the buffer rack (501). A baffle plate (503) is provided at one end of the material storage plate (502) close to the pressure testing machine frame (301). A blanking plate (506) is connected to the top of the baffle plate (503). The feeding mechanism includes a feeding lifting cylinder (504). The feeding lifting cylinder (504) is installed on one side of the pressure testing machine frame (301). A plurality of feeding lifting cylinders (504) are provided. The piston rod ends of the plurality of feeding lifting cylinders (504) are connected with a lifting connecting rod (505). A plurality of ejector plates (507) are provided on the lifting connecting rod (505). An inclined surface is provided on the top surface of the ejector plate (507). An upper feeding inclined plate (331) is provided at one end of the transposition mounting plate (329) close to the second material transfer assembly (500). The alignment mechanism includes two relatively arranged pressure testing alignment cylinders (508). The pressure testing alignment cylinders (508) are arranged outside the two ends of the lifting connecting rod (505). The piston rod ends of the pressure testing alignment cylinders (508) are connected with alignment top plates (509).

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