A conveying device and use method of a fully automatic fin tube immersion pressure testing machine

Abstract

The invention relates to the technical field of fin tube water immersion pressure testers, and discloses a conveying device and a use method of a fully automatic fin tube water immersion pressure tester, comprising a feeding mechanism, a discharging mechanism, a product conveying mechanism, a water testing and detecting mechanism and a discharging mechanism, so as to realize the orderly arrangement of tubes, and at the same time, the water testing and detecting mechanism is used to seal and limit the tubes, so as to improve the safety of the tubes during pressure testing; the tubes are clamped and limited by the cooperation of a limit seat and a clamper, and the sealing head realizes the sealing of the tubes, and the tube ends can be received in an annular sealing groove, and cooperate with a sealing ring group to realize secondary sealing of the tube ends, so as to greatly improve the sealing effect of the tube ends, prevent the poor air tightness caused by the damage of the sealing gasket, and then prevent the misjudgment of the air tightness detection, so as to greatly improve the accuracy of the air tightness detection of the fin tubes.

Description

Technical Field

[0001] The invention relates to the technical field of fin tube water immersion pressure testing machines, and in particular to a conveying device and a use method of a full-automatic fin tube water immersion pressure testing machine. Background Art

[0002] In the production process of fin tubes, air tightness detection is a key step in the fin tube processing process to avoid leakage of the fin tubes. In most cases, the two ends of the tubes are blocked, air is ventilated into the tubes, and then the tubes are immersed in water to observe whether bubbles appear. In the prior art, only one tube can be tested at a time, resulting in low detection efficiency and inability to achieve batch detection.

[0003] A fin tube air tightness testing device with application number CN202322305612.9 closes both ends of the pipe fitting through a movable pressure test head and a fixed pressure test head, and then ventilates the pipe fitting through the fixed pressure test head. The pipe fitting is immersed below the water surface of a water tank to observe whether bubbles appear, and the air tightness of the fin tube can be judged. Therefore, the air tightness of multiple fin tubes can be tested at the same time, and batch testing of the air tightness of fin tubes can be realized to improve the testing efficiency.

[0004] In actual use, when testing the air tightness of the fin tube, it is necessary to provide an inflation head at both ends of the fin tube so that the air pressure can fill the gas into the interior of the fin tube through the inflation head, thereby testing the air tightness of the fin tube. When inflating the interior of the fin tube, it is necessary to seal the two ends of the fin tube. The existing seal is generally to seal the fin tube with a sealing gasket. The sealing gasket is in contact and friction with the fin tube for a long time, which can easily lead to a reduction in the sealing quality of the sealing gasket. Therefore, in the actual air tightness test, it is easy to have an erroneous air tightness judgment due to the failure of the sealing gasket.

[0005] Therefore, the present invention solves the above-mentioned problem through a conveying device and a use method of a fully automatic fin tube immersion pressure testing machine. Summary of the invention

[0006] The object of the present invention is to provide a conveying device and a use method of a fully automatic fin tube immersion pressure testing machine to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a conveying device of a fully automatic fin tube immersion pressure testing machine, comprising a fixed frame, a feeding mechanism is matched and installed on the fixed frame, a discharging mechanism corresponding to the feeding mechanism is matched and installed on the fixed frame, a product handling mechanism is fixedly installed on the top of the fixed frame, a water testing detection mechanism is fixedly arranged in the fixed frame, a discharging mechanism corresponding to the product handling mechanism is equipped on one side of the water testing detection mechanism, and a control console is arranged on one side of the fixed frame;

[0008] The water testing mechanism includes a supporting frame arranged side by side, a water testing trough is fixedly arranged on the top of the supporting frame, a fixing frame is fixedly arranged on both the left and right ends of the water testing trough, a telescopic hydraulic cylinder is installed on the top of the fixing frame, a lifting frame is fixedly installed on the output ends of two groups of telescopic hydraulic cylinders, mounting frames are arranged on the left and right ends of the lifting frame, a plurality of tightening cylinders are installed on the top of each group of mounting frames, a sealing head is fixedly installed on the output end of each group of tightening cylinders, a bracket is fixedly installed on the bottom of the lifting frame, and a limit seat corresponding to the sealing head is arranged on the top of the bracket.

[0009] Preferably, the feeding mechanism includes a feeding frame, the feeding frame is equipped with an automatic lifting mechanism, a storage bin matching the automatic lifting mechanism is arranged on the top of the feeding frame, a feeding guide mechanism is equipped on one side of the output end of the storage bin, and a feeding jacking mechanism matching the feeding guide mechanism is fixedly installed on the feeding frame.

[0010] Preferably, the discharging mechanism comprises a discharging frame, a plurality of sets of hosting seats are arranged on the top of the discharging frame, a servo motor is fixed to the end of the discharging frame, and the servo motor drives the hosting seats to move.

[0011] Preferably, the discharging mechanism comprises a telescopic mechanism, the bottom of the telescopic mechanism is equipped with a flip mechanism, the left end of the telescopic mechanism is equipped with a discharging and guiding mechanism, and the bottom of the discharging and guiding mechanism is equipped with a discharging and lifting mechanism.

[0012] Preferably, the limit seat is an arc-shaped seat, and the limit seat has a built-in clamp. The clamp includes a storage groove opened inside the limit seat, arc-shaped channels passing through the top of the limit seat are opened on both sides of the storage groove, and a guide groove passing upward is opened in the middle of the top of the storage groove.

[0013] Preferably, the clamp also includes a slide plate slidably assembled inside the storage groove, a pressure-bearing piece is provided at the bottom of the slide plate, a pushing piece integrally formed with the pressure-bearing piece is installed in the arc channel, a guide plate slidably assembled in the guide groove is fixed on the top of the slide plate, an arc plate is fixedly assembled on the guide plate passing through the guide groove, a clamping plate is slidably assembled in the arc channel, and the bottom end of the clamping plate is fixed to the top of the pushing piece.

[0014] Preferably, a pressure-bearing groove is provided at the bottom of the bracket, a pressure-bearing plate is slidably mounted in the pressure-bearing groove, and a pressure-bearing air bag is mounted between the pressure-bearing plate and the pressure-bearing groove.

[0015] Preferably, a limiting ring is fixed inside the sealing head, an air inflation channel is opened inside the sealing head, an annular sealing groove is arranged on the outer side of the limiting ring, a sealing ring group is integrally formed on the outer side of the inner wall of the annular sealing groove, and an air storage tank matching the sealing ring group is opened inside the sealing head.

[0016] Preferably, the pressure-bearing air bag is connected to the pressure-bearing member through an air duct, the pressure-bearing member and the pushing member are both air bags, the pressure-bearing member and the pushing member are connected, the pressure-bearing member is connected to the air storage tank through an air supply pipe, and a gas pressure valve is fixedly installed on the air supply pipe.

[0017] The present invention provides a method for using the conveying device of the fully automatic fin tube immersion pressure testing machine as described above, and the specific steps of the method for using are:

[0018] S1: The pipes are placed in the storage bin in the feeding mechanism. The automatic lifting mechanism slowly lifts the storage bin. Under the action of gravity, the pipes slowly roll down and spread out. Then, they are lifted twice by the feeding lifting mechanism. The pipes are sent to the feeding and guiding mechanism one by one to prepare for the next step of discharging.

[0019] S2: Driven by the servo motor in the discharge mechanism, the tubes are placed on the hosting seat at equal intervals to achieve orderly arrangement of the tubes. Then the manipulator in the product handling mechanism grabs one row of tubes from the hosting seat at a time, and then puts them into the water testing mechanism, and then returns to grab the next row of tubes;

[0020] S3: The manipulator puts the pipe on the limit seat in the water test mechanism, and uses the deadweight of the pipe to apply pressure to the clamp, so that the clamp can achieve self-clamping and limiting of the pipe. Then, the left and right sets of tightening cylinders drive the sealing head to seal the end of the pipe. In this way, the pipe is restricted on the lifting frame, and the telescopic hydraulic cylinder drives the lifting frame to move downward, so that the pipe is immersed in the water test tank. High-pressure gas is filled into the pipe through the sealing head for pressure testing and leak detection. After maintaining the pressure for a certain period of time, the telescopic hydraulic cylinder is reset to drive the lifting frame to move upward. Then, the two sets of tightening cylinders drive the sealing head to reset, and the pipe is unlocked.

[0021] S4: The telescopic mechanism in the discharging mechanism extends the telescopic lever to the bottom of the pipe after the pressure test, and the turning mechanism turns the pipe onto the storage rack. Then the discharging lifting mechanism pushes the pipes one by one onto the discharging guide mechanism, and the pipes are transferred to the next process through the guide wheel.

[0022] Technical effects and advantages of the present invention:

[0023] 1. The present invention utilizes a feeding mechanism to realize the orderly transmission of pipes, and a discharging mechanism can place the pipes at equal intervals to realize the orderly arrangement of the pipes. Then, the manipulator in the product handling mechanism grabs a row of pipes from the discharging mechanism at a time, and then puts them into the water testing mechanism for pressure testing, and then returns to grab the next row of pipes. The discharging mechanism moves to transmit the pipes after the pressure test to the next process, which can realize the orderly arrangement and placement of the pipes. At the same time, the water testing mechanism is used to seal and limit the pipes, thereby improving the safety of the pipes during pressure testing.

[0024] 2. In the present invention, after the tube is clamped and limited by the limit seat and the clamp, the tightening cylinder drives the sealing head to be sealed on the end of the tube to achieve sealing. That is, the end of the tube is sleeved on the outer wall of the limit ring. When gas is introduced into the tube through the inflation channel, the gas pressure can act on the limit ring, so that the limit ring is squeezed on the inner wall of the end of the tube. The limit ring can achieve initial sealing, and the end of the tube can be received in the annular sealing groove, and the sealing ring group can be used to achieve secondary sealing of the end of the tube, which greatly improves the sealing effect of the end of the tube and prevents poor air tightness due to damage of the sealing gasket, which in turn causes misjudgment of air tightness detection.

[0025] 3. In the process of the lifting frame of the present invention moving down to the water testing tank, the pressure plate continuously squeezes the pressure air bag, so that the gas in the pressure air bag will be introduced into the pushing member through the air guide tube, causing the pushing member to expand and push the arc plate to extend out of the arc channel, and then the side wall of the pipe is tightened and limited by the arc plate. When the gas pressure inside the pushing member reaches the threshold of the gas pressure valve, the gas in the pressure air bag will be introduced into the gas storage tank by the pushing member through the air pipe, which can cause the sealing ring group to expand and tightly squeeze on the outer wall of the pipe end, thereby improving the sealing performance of the pipe end. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is an exploded schematic diagram of the overall structure of the present invention;

[0028] Figure 3 It is a right view of the overall structure of the present invention;

[0029] Figure 4 This is a front view of the feeding mechanism structure of the present invention;

[0030] Figure 5 It is a schematic diagram of the overall structure of the feeding mechanism of the present invention;

[0031] Figure 6 It is a schematic diagram of the overall structure of the discharging mechanism of the present invention;

[0032] Figure 7 It is a top view of the structure of the discharging mechanism of the present invention;

[0033] Figure 8 It is a schematic diagram of the overall structure of the discharging mechanism of the present invention;

[0034] Fig. 9 It is a right view of the discharging mechanism structure of the present invention;

[0035] Fig.10 This is a schematic diagram of the structure of the locking hinge screw of the present invention;

[0036] Fig.11 This is a schematic structural diagram of a first embodiment of a water testing mechanism of the present invention;

[0037] Fig.12 This is a schematic structural diagram of the water testing mechanism of the second embodiment of the present invention from a first viewing angle;

[0038] Fig.13 This is a schematic structural diagram of the second embodiment of the water testing mechanism of the present invention from a second viewing angle;

[0039] Fig.14 This is a schematic diagram of the sealing head structure of the present invention;

[0040] Fig.15 This is a schematic diagram of the assembly structure of the clamp, bracket and limit seat of the present invention;

[0041] Fig.16 This is a schematic diagram of the assembly structure of the clamp and the limit seat of the present invention;

[0042] Fig.17 It is a schematic diagram of the structure of the clamp of the present invention.

[0043] In the figure: 10, fixed frame; 20, feeding mechanism; 21, feeding frame; 22, storage bin; 23, automatic lifting mechanism; 24, feeding lifting mechanism; 25, feeding guide mechanism; 30, discharge mechanism; 31, discharge frame; 32, servo motor; 33, hosting seat; 40, product handling mechanism; 50, water testing mechanism; 51, support frame; 52, water testing tank; 53, fixed frame; 54, telescopic hydraulic cylinder; 55, lifting frame; 56, mounting frame; 57, tightening cylinder; 58, sealing head; 581, limit ring; 582, air blowing channel; 583 , annular sealing groove; 584, sealing ring assembly; 585, air storage tank; 59, bracket; 510, limit seat; 511, clamp; 512, pressure plate; 513, pressure groove; 514, pressure air bag; 515, storage groove; 516, arc channel; 517, guide groove; 518, pressure member; 519, pushing member; 520, guide plate; 521, arc plate; 522, clamping plate; 523, slide plate; 60, discharging mechanism; 61, telescopic mechanism; 62, flipping mechanism; 63, discharging lifting mechanism; 64, discharging guiding mechanism; 70, control console. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Example 1

[0045] This embodiment provides Figures 1 to 10 The conveying device of a fully automatic fin tube immersion pressure testing machine shown in the figure includes a fixed frame 10, on which a feeding mechanism 20 is matched and equipped, and a discharging mechanism 30 corresponding to the feeding mechanism 20 is matched and installed on the fixed frame 10, a product handling mechanism 40 is fixedly equipped on the top of the fixed frame 10, a water testing and detection mechanism 50 is fixedly arranged in the fixed frame 10, and a discharging mechanism 60 corresponding to the product handling mechanism 40 is equipped on one side of the water testing and detection mechanism 50, and a control console 70 is provided on one side of the fixed frame 10. In actual use, the control console 70 can realize integrated control for the entire pressure testing machine, the feeding mechanism 20 can realize orderly transmission of the tubes, and the discharging mechanism 30 can make the tubes be placed at equal intervals to realize orderly arrangement of the tubes, and then the manipulator in the product handling mechanism 40 grabs a row of tubes from the discharging mechanism 30 at a time, and then puts them into the water testing and detection mechanism 50 for pressure testing, and then returns to grab the next row of tubes, and the discharging mechanism 60 acts to transmit the tubes after the pressure test to the next process.

[0046] See also Figure 4 and Figure 5 The feeding mechanism 20 includes a feeding frame 21, on which an automatic lifting mechanism 23 is equipped. A storage bin 22 matching the automatic lifting mechanism 23 is arranged on the top of the feeding frame 21, and a feeding guide mechanism 25 is equipped on one side of the output end of the storage bin 22. A feeding jacking mechanism 24 matching the feeding guide mechanism 25 is fixedly installed on the feeding frame 21. The pipe is placed in the storage bin 22 in the feeding mechanism 20, and the automatic lifting mechanism 23 slowly lifts the storage bin 22. Under the action of gravity, the pipe slowly rolls downward and spreads out, and then is lifted twice by the feeding jacking mechanism 24. The pipes are sent to the feeding guide mechanism 25 one by one to be transmitted, so as to prepare for the next step of discharging.

[0047] See also Figure 6 and Figure 7 The discharging mechanism 30 includes a discharging frame 31, and a plurality of groups of hosting seats 33 are arranged on the top of the discharging frame 31. A servo motor 32 is fixed to the end of the discharging frame 31, and the servo motor 32 drives the hosting seats 33 to move. Driven by the servo motor 32 in the discharging mechanism 30, the tubes are placed on the hosting seats 33 at equal intervals to achieve orderly arrangement of the tubes. Then, the manipulator in the product handling mechanism 40 grabs one row of tubes from the hosting seats 33 at a time, and then puts them into the water testing mechanism 50, and then returns to grab the next row of tubes.

[0048] See also Fig.10 The water testing mechanism 50 includes a supporting frame 51 arranged side by side, a testing water tank 52 is fixedly arranged on the top of the supporting frame 51, a fixing frame 53 is fixedly arranged on both the left and right ends of the testing water tank 52, a telescopic hydraulic cylinder 54 is installed on the top of the fixing frame 53, a lifting frame 55 is fixedly installed on the output end of the two sets of telescopic hydraulic cylinders 54, and a mounting frame 56 is arranged on the left and right ends of the lifting frame 55, and a plurality of groups of tightening cylinders 57 are installed on the top of each group of mounting frames 56, and a sealing head 58 is fixedly installed on the output end of each group of tightening cylinders 57, and a bracket 59 is fixedly installed on the bottom of the lifting frame 55, and a limit seat 510 corresponding to the sealing head 58 is arranged on the top of the bracket 59, and the manipulator puts the pipe on the test On the limit seat 510 in the water detection mechanism 50, the deadweight of the pipe is used to apply pressure to the clamp 511, so that the clamp 511 realizes the self-clamping and limiting of the pipe, and then the left and right two groups of tightening cylinders 57 are actuated to drive the sealing head 58 to seal the end of the pipe, so that the pipe is restricted on the lifting frame 55, and the telescopic hydraulic cylinder 54 is actuated to drive the lifting frame 55 to move downward, so that the pipe is immersed in the water testing tank 52, and high-pressure gas is filled into the pipe through the sealing head 58 to perform pressure testing and leak detection. After maintaining the pressure for a certain period of time, the telescopic hydraulic cylinder 54 is reset, driving the lifting frame 55 to move upward, and then the two groups of tightening cylinders 57 are actuated to drive the sealing head 58 to reset, thereby completing the unlocking of the pipe.

[0049] See also Figure 8 and Fig. 9 The discharging mechanism 60 includes a telescopic mechanism 61, a turning mechanism 62 is equipped at the bottom of the telescopic mechanism 61, a discharging guide mechanism 64 is equipped at the left end of the telescopic mechanism 61, and a discharging lifting mechanism 63 is equipped below the discharging guide mechanism 64. The telescopic mechanism 61 is actuated to extend the telescopic lever to the bottom of the pipe after the pressure test, and the turning mechanism 62 is actuated to turn the pipe onto the storage rack, and then the discharging lifting mechanism 63 is actuated to push the pipes one by one onto the discharging guide mechanism 64, and the pipes are transmitted to the next process through the guide wheel. Example 2

[0050] This embodiment discloses Figures 1 to 17 The conveying device of a fully automatic fin tube immersion pressure testing machine shown in the figure includes the technical features disclosed in Example 1, and the limit seat 510 is an arc-shaped seat, and the limit seat 510 has a built-in clamp 511. The clamp 511 includes a storage groove 515 opened inside the limit seat 510, and arc-shaped channels 516 that pass through the top of the limit seat 510 are opened on both sides of the storage groove 515, and a guide groove 517 that passes through upward is opened in the middle of the top of the storage groove 515.

[0051] See also Fig.17 The clamp 511 also includes a slide plate 523 slidably assembled inside the storage groove 515, a pressure piece 518 is arranged at the bottom of the slide plate 523, a pushing piece 519 integrally formed with the pressure piece 518 is installed in the arc channel 516, a guide plate 520 slidably assembled in the guide groove 517 is fixed on the top of the slide plate 523, the guide plate 520 passes through the guide groove 517 and is fixedly assembled with an arc plate 521, a clamping plate 522 is slidably assembled in the arc channel 516, and the bottom end of the clamping plate 522 is fixed to the top of the pushing piece 519.

[0052] In actual use, when the tube is placed on the limit seat 510, it will first generate an extrusion force on the arc plate 521, and then drive the arc plate 521 together with the guide plate 520 and the slide plate 523 to move downward, and squeeze the pressure piece 518. In this way, the internal gas of the pressure piece 518 will flow into the pushing piece 519, causing the pushing piece 519 to expand, and then the pushing piece 519 will push the clamping plate 522 out of the arc channel 516 in the arc channel 516, so that the arc plate 521 can position the tube, and the limit seat 510 can support the tube. When the two sets of clamping plates 522 extend out of the arc channel 516, they can automatically clamp and press on the outer wall of the tube, and can achieve an automatic clamping and limiting effect.

[0053] See also Fig.16A pressure groove 513 is provided at the bottom of the bracket 59, and a pressure plate 512 is slidably installed in the pressure groove 513. A pressure air bag 514 is installed between the pressure plate 512 and the pressure groove 513. When the telescopic hydraulic cylinder 54 drives the lifting frame 55 to move down to the inside of the water testing tank 52, the pressure plate 512 will first contact the bottom of the water testing tank 52, and then as the lifting frame 55 continues to move downward, the pressure plate 512 will shrink into the pressure groove 513 and will continue to squeeze the pressure air bag 514.

[0054] See also Fig.14 A limit ring 581 is fixed in the sealing head 58, an air blowing channel 582 is provided in the sealing head 58, an annular sealing groove 583 is provided on the outer side of the limit ring 581, a sealing ring group 584 is integrally formed on the outer side of the inner wall of the annular sealing groove 583, and an air storage groove 585 matching the sealing ring group 584 is provided in the sealing head 58. After the pipe passes through the limit seat 510 and the clamp 511, the tightening cylinder 57 drives the sealing head 58 to be encapsulated in the end of the pipe to achieve sealing treatment, that is, the end of the pipe is sleeved on the limit seat 510 and the clamp 511. On the outer wall of the ring 581, when gas is introduced into the interior of the tube through the inflation channel 582, the gas pressure can act on the limit ring 581, so that the limit ring 581 is squeezed on the inner wall of the tube end, and a preliminary seal can be achieved through the limit ring 581. The tube end can be received in the annular sealing groove 583, and the sealing ring group 584 is cooperated to achieve secondary sealing of the tube end, which greatly improves the sealing effect of the tube end and prevents poor air tightness due to damage of the sealing gasket, thereby causing misjudgment of the air tightness detection.

[0055] The pressure air bag 514 is connected to the pressure piece 518 through an air duct. The pressure piece 518 and the pushing piece 519 are both air bags. The pressure piece 518 and the pushing piece 519 are connected. The pressure piece 518 is connected to the air storage tank 585 through an air supply pipe, and a gas pressure valve is fixedly installed on the air supply pipe.

[0056] When the lifting frame 55 moves down to the water testing tank 52, the pressure plate 512 continuously squeezes the pressure air bag 514, so that the gas in the pressure air bag 514 will be introduced into the pusher 519 through the air guide tube, causing the pusher 519 to expand and push the arc plate 521 to extend out from the arc channel 516, and then the side wall of the pipe is tightened and limited by the arc plate 521. When the gas pressure inside the pusher 519 reaches the threshold of the gas pressure valve, the gas in the pressure air bag 514 will be introduced into the gas storage tank 585 by the pusher 519 through the air pipe, which can cause the sealing ring group 584 to expand and tightly squeeze on the outer wall of the pipe end, thereby improving the sealing performance of the pipe end.

[0057] After the tube is packaged, the lifting frame 55 and the tube are immersed in the water test tank 52. After gas is input into the tube, a pressure test is performed to detect the sealing performance of the tube.

[0058] After the air tightness test of the pipe is completed, the telescopic hydraulic cylinder 54 is reset to drive the lifting frame 55 to move out of the water testing tank 52. During the upward movement of the lifting frame 55, the pressure air bag 514 is gradually reset, so that the gas in the gas storage tank 585 will flow back to the pressure air bag 514 through the gas transmission pipe, thereby relieving the squeezing force of the sealing ring group 584 on the end of the pipe. When the lifting frame 55 is reset, the gas in the pushing member 519 will also flow back to the pressure air bag 514 through the air guide pipe, so that the squeezing force of the clamping plate 522 on the outer wall of the pipe by the pushing member 519 will also decrease with the reflux of the gas. After the tightening cylinder 57 drives the sealing head 58 to reset, the manipulator on the product handling mechanism 40 takes the pressure-tested pipe out of the limit seat 510 and transports it to the discharging mechanism 60 for conveying operation.

[0059] It is worth mentioning that in the process of removing the pressure-tested pipe from the limit seat 510 by the manipulator, the dead weight of the pipe causes the pressure-bearing member 518 to be compressed, and the clamping plate 522 will continue to apply pressure on the outer wall of the pipe through the push of the pushing member 519. At this time, the manipulator drives the pipe upward and continuously squeezes the two sets of clamping plates 522, causing the clamping plates 522 to squeeze the pushing member 519 and retract into the arc-shaped channel 516, so that the pipe can be removed from the limit seat 510. Subsequently, the pressure-bearing member 518 is reset, and the arc plate 521 is reset by the slide plate 523 and the guide plate 520. At the same time, the clamping plate 522 will also retract into the arc-shaped channel 516 due to the reset of the pressure-bearing member 518, so as to facilitate the next step of the pressure test clamping operation. Example 3

[0060] This embodiment discloses a method for using the conveying device of the fully automatic fin tube immersion pressure testing machine as described in Example 2. The specific steps of the method are as follows:

[0061] S1: The pipes are placed in the storage bin 22 in the feeding mechanism 20, and the automatic lifting mechanism 23 slowly lifts the storage bin 22. Under the action of gravity, the pipes slowly roll down and spread out, and then are lifted twice by the feeding lifting mechanism 24. The pipes are sent to the feeding and guiding mechanism 25 one by one to transfer the pipes, preparing for the next step of discharging;

[0062] S2: Driven by the servo motor 32 in the discharging mechanism 30, the tubes are placed on the hosting seat 33 at equal intervals to achieve orderly arrangement of the tubes. Then, the manipulator in the product handling mechanism 40 grabs a row of tubes from the hosting seat 33 at a time, and then puts them into the water testing mechanism 50, and then returns to grab the next row of tubes.

[0063] S3: The manipulator puts the pipe on the limit seat 510 in the water testing mechanism 50, and uses the deadweight of the pipe to apply pressure to the clamp 511, so that the clamp 511 can realize the self-clamping limit of the pipe. Then, the left and right two sets of tightening cylinders 57 are actuated to drive the sealing head 58 to seal the end of the pipe. In this way, the pipe is restricted on the lifting frame 55, and the telescopic hydraulic cylinder 54 is actuated to drive the lifting frame 55 to move downward, so that the pipe is immersed in the water testing tank 52. High-pressure gas is filled into the pipe through the sealing head 58 to perform pressure test and leak detection. After maintaining the pressure for a certain period of time, the telescopic hydraulic cylinder 54 is reset to drive the lifting frame 55 to move upward. Then, the two sets of tightening cylinders 57 are actuated to drive the sealing head 58 to reset, and the pipe is unlocked.

[0064] S4: The telescopic mechanism 61 in the discharge mechanism 60 is actuated to extend the telescopic lever to the bottom of the pipe after the pressure test, and the turning mechanism 62 is actuated to turn the pipe onto the storage rack. Then, the discharge lifting mechanism 63 is actuated to push the pipes one by one onto the discharge guiding mechanism 64, and the pipes are transferred to the next process through the guide wheel.

[0065] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A conveying device for a fully automatic fin tube immersion pressure testing machine, comprising a fixed frame (10), characterized in that: The fixed frame (10) is equipped with a loading mechanism (20), the fixed frame (10) is equipped with a discharging mechanism (30) corresponding to the loading mechanism (20), the top of the fixed frame (10) is fixedly equipped with a product conveying mechanism (40), a water testing mechanism (50) is fixedly arranged inside the fixed frame (10), a discharging mechanism (60) corresponding to the product conveying mechanism (40) is equipped on one side of the water testing mechanism (50), and a control console (70) is provided on one side of the fixed frame (10); The water testing mechanism (50) comprises a supporting frame (51) arranged side by side, a water testing trough (52) being fixedly arranged on the top of the supporting frame (51), a fixing frame (53) being fixedly arranged on both the left and right ends of the water testing trough (52), a telescopic hydraulic cylinder (54) being installed on the top of the fixing frame (53), a lifting frame (55) being fixedly installed on the output ends of the two sets of telescopic hydraulic cylinders (54), a mounting frame (56) being arranged on both the left and right ends of the lifting frame (55), a plurality of sets of tightening cylinders (57) being installed on the top of each set of the mounting frames (56), a sealing head (58) being fixedly installed on the output end of each set of tightening cylinders (57), a bracket (59) being fixedly installed on the bottom of the lifting frame (55), a limit seat (510) corresponding to the sealing head (58) being arranged on the top of the bracket (59); The limiting seat (510) is an arc-shaped seat, and the limiting seat (510) has a built-in clamp (511). The clamp (511) comprises a receiving groove (515) provided inside the limiting seat (510), arc-shaped channels (516) penetrating the top of the limiting seat (510) are provided on both sides of the receiving groove (515), and a guide groove (517) penetrating upwards is provided in the middle of the top of the receiving groove (515); The clamp (511) further comprises a slide plate (523) slidably mounted inside the storage groove (515), a pressure-bearing member (518) is arranged at the bottom of the slide plate (523), a pushing member (519) integrally formed with the pressure-bearing member (518) is installed in the arc-shaped channel (516), a guide plate (520) slidably mounted in the guide groove (517) is fixed on the top of the slide plate (523), the guide plate (520) passes through the guide groove (517) and is fixedly mounted with an arc-shaped plate (521), a clamping plate (522) is slidably mounted in the arc-shaped channel (516), and the bottom end of the clamping plate (522) is fixed to the top of the pushing member (519); A pressure-bearing groove (513) is provided at the bottom of the bracket (59), a pressure-bearing plate (512) is slidably mounted in the pressure-bearing groove (513), and a pressure-bearing air bag (514) is mounted between the pressure-bearing plate (512) and the pressure-bearing groove (513); A limit ring (581) is fixed in the sealing head (58), an air blowing passage (582) is provided in the sealing head (58), an annular sealing groove (583) is provided on the outer side of the limit ring (581), a sealing ring group (584) is integrally formed on the outer side of the inner side wall of the annular sealing groove (583), and an air storage groove (585) matching the sealing ring group (584) is provided in the sealing head (58); The pressure-bearing air bag (514) is connected to the pressure-bearing member (518) via an air guide tube; the pressure-bearing member (518) and the pushing member (519) are both air bags; the pressure-bearing member (518) and the pushing member (519) are connected; the pressure-bearing member (518) is connected to the gas storage tank (585) via an air supply pipe, and a gas pressure valve is fixedly mounted on the air supply pipe.

2. The conveying device of the fully automatic fin tube immersion pressure testing machine according to claim 1 is characterized in that: The feeding mechanism (20) comprises a feeding frame (21), the feeding frame (21) is equipped with an automatic lifting mechanism (23), a material storage bin (22) matching the automatic lifting mechanism (23) is arranged on the top of the feeding frame (21), a feeding guide mechanism (25) is equipped on one side of the output end of the material storage bin (22), and a feeding lifting mechanism (24) matching the feeding guide mechanism (25) is fixedly installed on the feeding frame (21).

3. The conveying device of the fully automatic fin tube immersion pressure testing machine according to claim 2 is characterized in that: The discharging mechanism (30) comprises a discharging frame (31), a plurality of sets of tube holders (33) are arranged on the top of the discharging frame (31), a servo motor (32) is fixed to the end of the discharging frame (31), and the servo motor (32) drives the tube holders (33) to move.

4. The conveying device of the fully automatic fin tube immersion pressure testing machine according to claim 3 is characterized in that: The discharging mechanism (60) comprises a telescopic mechanism (61), the bottom of the telescopic mechanism (61) is equipped with a turning mechanism (62), the left end of the telescopic mechanism (61) is equipped with a discharging guide mechanism (64), and the bottom of the discharging guide mechanism (64) is equipped with a discharging lifting mechanism (63).

5. A method for using the conveying device of the fully automatic fin tube immersion pressure testing machine as claimed in claim 4, characterized in that: The specific steps of use are: S1: The pipes are placed in the storage bin (22) in the feeding mechanism (20), and the automatic lifting mechanism (23) slowly lifts the storage bin (22). Under the action of gravity, the pipes slowly roll downward and spread out, and then are lifted twice by the feeding lifting mechanism (24). The pipes are sent one by one to the feeding guide mechanism (25) to be transported, so as to prepare for the next step of discharging. S2: Under the drive of the servo motor (32) in the material discharging mechanism (30), the tubes are placed on the tube holder (33) at equal intervals to achieve orderly arrangement of the tubes. Then, the manipulator in the product handling mechanism (40) grabs one row of tubes from the tube holder (33) at a time, and then puts them into the water testing mechanism (50), and then returns to grab the next row of tubes. S3: The manipulator places the pipe on the limit seat (510) in the water testing mechanism (50), and uses the deadweight of the pipe to apply pressure to the clamp (511), so that the clamp (511) can achieve self-clamping and limiting of the pipe. Then, the left and right sets of tightening cylinders (57) are actuated to drive the sealing head (58) to seal the end of the pipe, so that the pipe is restricted on the lifting frame (55). The telescopic hydraulic cylinder (54) is actuated to drive the lifting frame (55) to move downward, so that the pipe is immersed in the water testing tank (52). High-pressure gas is filled into the pipe through the sealing head (58) to perform pressure testing and leak detection. After maintaining the pressure for a certain period of time, the telescopic hydraulic cylinder (54) is reset to drive the lifting frame (55) to move upward. Then, the two sets of tightening cylinders (57) are actuated to drive the sealing head (58) to reset, thereby completing the unlocking of the pipe. S4: The telescopic mechanism (61) in the discharge mechanism (60) is actuated to extend the telescopic lever to the bottom of the pipe after the pressure test, and the turning mechanism (62) is actuated to turn the pipe onto the storage rack. Subsequently, the discharge lifting mechanism (63) is actuated to push the pipes one by one onto the discharge guide mechanism (64), and the pipes are transferred to the next process via the guide wheel.

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