IV-type hydrogen storage bottle liner weld endoscopic and ultrasonic defect inspection machine

Abstract

The utility model relates to the technical field of IV-type hydrogen storage cylinder inner container detection, in particular to an IV-type hydrogen storage cylinder inner container weld endoscopic and ultrasonic defect inspection machine which comprises a complete machine frame, a tailstock jacking assembly, a defect inspection assembly and a weld endoscopic assembly. The tailstock jacking assembly comprises a conical jacking block which can move in the horizontal direction and can rotate, the welding seam endoscopic assembly comprises an endoscope which can move in the horizontal direction, a servo rotary table which can rotate and a servo rotary table rotation driving device, the conical jacking block and the servo rotary table are concentric, and the conical jacking block and the servo rotary table clamp the two ends of an inner container correspondingly; the defect inspection assembly comprises an ultrasonic probe set which can move in the horizontal direction and is used for conducting ultrasonic inspection from the outside of the inner container, and an endoscope penetrates through the center of the servo rotary table to enter the inner container to conduct endoscopic inspection. According to the IV-type hydrogen storage cylinder liner weld endoscopic and ultrasonic defect inspection machine, through an automatic and intelligent detection means, the detection efficiency and accuracy are improved, and the influence of human factors on the detection result is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of IV type hydrogen storage bottle inner container detection, specifically relates to a kind of IV type hydrogen storage bottle inner container weld endoscopy and ultrasonic defect inspection machine. BACKGROUND

[0002] As the core component of hydrogen storage cylinder, the quality of IV type hydrogen storage bottle injection inner container is directly related to the safety and efficiency of hydrogen storage. Figure 6 As shown in the figure, the inner container is usually welded by two parts of head 7 and barrel 8 formed by injection molding, and one or two circles of weld 9 are formed at the weld after welding. To ensure the quality of the weld, the weld needs to be strictly detected after cutting to ensure that the defect value of the weld is within the standard range. At the same time, the uniformity of the wall thickness of the inner container and the thickness tolerance range are also important indicators to measure the quality of the inner container, which need to be strictly controlled within the standard range.

[0003] However, the automatic weld endoscopy inspection and wall thickness defect inspection equipment for hydrogen storage bottle inner container in the current market is still in a basic blank state. The traditional weld endoscopy inspection mainly relies on manual holding of endoscope to enter the inner container, and the weld quality is checked by rotating the observation screen. This way not only is inefficient, but also it is difficult to ensure that the entire weld circle can be fully checked. At the same time, the shaking and other factors in the process of manual operation will also affect the judgment result of the artificial, resulting in the accuracy of the detection result being questionable.

[0004] For the inspection of wall thickness defects, it is currently mainly relied on manual operation with manual roller. This way also has problems such as unstable detection process and detection result easily affected by human factors. Therefore, there is an urgent need for a device that can automatically, accurately and comprehensively inspect the weld and wall thickness defects of IV type hydrogen storage bottle inner container.

[0005] In view of the above background, the utility model provides a kind of IV type hydrogen storage bottle inner container weld endoscopy and ultrasonic defect inspection machine, which aims to improve the detection efficiency and accuracy through automatic and intelligent detection means, reduce the influence of human factors on the detection result, and meet the high standard requirements of hydrogen storage bottle inner container quality detection. UTILITY MODEL CONTENTS

[0006] To solve the above problems, the utility model provides a kind of IV type hydrogen storage bottle inner container weld endoscopy and ultrasonic defect inspection machine, which improves the detection efficiency and accuracy through automatic and intelligent detection means, reduces the influence of human factors on the detection result, and has wide applicability, stability and reliability.

[0007] The technical scheme of the utility model is as follows:

[0008] The application discloses a type IV hydrogen storage bottle liner welding seam endoscope and ultrasonic defect inspection machine, which comprises a whole machine frame, a tail seat pressing assembly, a defect inspection assembly and a welding seam endoscope assembly, wherein the tail seat pressing assembly, the defect inspection assembly and the welding seam endoscope assembly are installed on the whole machine frame; the tail seat pressing assembly comprises a conical pressing block capable of moving horizontally and rotating; the welding seam endoscope assembly comprises an endoscope capable of moving horizontally, a servo turntable capable of rotating and a servo turntable rotating driving device; the conical pressing block is concentric with the servo turntable; the conical pressing block and the servo turntable clamp two ends of the liner respectively; the defect inspection assembly comprises an ultrasonic probe group capable of moving horizontally and used for ultrasonic inspection from the outside of the liner; the endoscope passes through the center of the servo turntable and enters the liner to perform endoscopic examination.

[0009] The bottom of the whole machine frame is provided with adjustable height feet.

[0010] The type IV hydrogen storage bottle liner welding seam endoscope and ultrasonic defect inspection machine further comprises a machine body shell which is fixedly installed on the whole machine frame and covers the tail seat pressing assembly, the defect inspection assembly and the welding seam endoscope assembly.

[0011] An electric control cabinet is installed on the whole machine frame.

[0012] The tail seat pressing assembly comprises a tail seat, a pressing cylinder, a guide assembly, a conical pressing block and a crossed roller bearing; the tail seat is movably installed on the whole machine frame; the cylinder body of the pressing cylinder is fixed on the tail seat; the telescopic rod end of the pressing cylinder is fixedly connected with one end of the guide assembly; the other end of the guide assembly is provided with the crossed roller bearing; the rotating part of the crossed roller bearing is fixedly connected with the conical pressing block.

[0013] The tail seat is fixedly connected with the sliding block of a pressing assembly ball screw assembly; the fixed end of the ball screw assembly is installed on a pressing assembly cross beam; the pressing assembly cross beam is provided with a pressing assembly servo motor for driving the ball screw assembly; the pressing assembly cross beam is fixedly connected with the whole machine frame through a pressing assembly support leg.

[0014] The defect inspection assembly comprises an inspection assembly support cross beam, a water collecting groove, a nozzle, an ultrasonic probe group and a laser scale; the inspection assembly support cross beam is liftably installed on the whole machine frame; the water collecting groove is fixed on the inspection assembly support cross beam; the inspection assembly support cross beam is provided with an inspection assembly linear module driven by an inspection assembly second servo motor; a bending piece is fixedly installed on the sliding block of the inspection assembly linear module; the nozzle, the ultrasonic probe group and the laser scale are fixed on the bending piece.

[0015] The inspection assembly mounting support I and the inspection assembly mounting support II are fixedly installed on the whole machine rack and are arranged in parallel with each other, the inspection assembly linear guide rails and the inspection assembly sliders are respectively installed on the inner sides of the inspection assembly mounting support I and the inspection assembly mounting support II, the two ends of the inspection assembly support crossbeam are fixedly connected with the inspection assembly sliders on the two sides respectively, the inspection assembly ball screw assemblies are respectively installed on the inspection assembly mounting support I and the inspection assembly mounting support II, the sliders of the inspection assembly ball screw assemblies are fixedly connected with the inspection assembly sliders, the inspection assembly first servo motor and the double-output-shaft speed reducer for driving the inspection assembly ball screw assemblies are fixedly installed on the whole machine rack, and the two output shafts of the double-output-shaft speed reducer are connected with the inspection assembly ball screw assemblies through transmission shafts respectively.

[0016] The welding seam endoscopic assembly comprises a servo turntable, an endoscope and a motor mounting plate, the servo turntable and a driving endoscope third servo motor of the servo turntable are installed on the mounting support I, the motor mounting plate is movably installed on the whole machine rack in a horizontal direction, and the endoscope is fixedly installed on the motor mounting plate through a probe head extension rod.

[0017] Two endoscope assembly supporting legs are fixedly installed on the whole machine rack, an endoscope assembly supporting beam is fixed between the two endoscope assembly supporting legs, an endoscope assembly linear guide rail assembly is installed on the endoscope assembly supporting beam, the motor mounting plate is fixedly installed on the slider of the endoscope assembly linear guide rail assembly, a rack is installed on the endoscope assembly supporting beam, an endoscope assembly first servo motor is installed on the motor mounting plate, a gear cooperating with the rack is fixedly connected to the output shaft of the endoscope assembly first servo motor, and the motor mounting plate is driven to slide along the guide rail of the endoscope assembly linear guide rail assembly through cooperation of the gear and the rack.

[0018] The utility model discloses the beneficial effect lies in:

[0019] 1、 the utility model discloses a kind of Ⅳ hydrogen storage bottle inner container welding seam endoscopic and ultrasonic flaw detection machine, the Ⅳ hydrogen storage bottle inner container welding seam endoscopic and ultrasonic flaw detection machine accurately control the walking position of endoscope and ultrasonic probe by PLC internal program, realize the automation of welding seam endoscopic inspection and wall thickness defect ultrasonic inspection, greatly improve detection efficiency, reduce the tedious and error of manual operation;The servo drive system of equipment itself can automatically rotate endoscope and ultrasonic probe, ensure comprehensive inspection to welding seam and wall thickness, avoid shaking and missing problem when manually holding operation.

[0020] 2. The utility model discloses a kind of Ⅳ-type hydrogen storage bottle inner container welding seam endoscopy and ultrasonic defect inspection machine, the Ⅳ-type hydrogen storage bottle inner container welding seam endoscopy and ultrasonic defect inspection machine reduce the influence of artificial factor to detection result by automatic detection means, improve the accuracy and reliability of detection;Equipment is equipped with laser scale and ultrasonic probe and other high-precision detection tools, can accurately measure welding defect and wall thickness uniformity, ensure that inner container quality meets high standard requirement.

[0021] 3, the utility model discloses a kind of Ⅳ-type hydrogen storage bottle inner container welding seam endoscopy and ultrasonic defect inspection machine, the Ⅳ-type hydrogen storage bottle inner container welding seam endoscopy and ultrasonic defect inspection machine by design various servo adjusting mechanism and stroke, the applicable range of equipment is promoted to Ⅳ-type hydrogen storage bottle inner container of diameter 200mm-400mm, length 800-2500mm;Greatly improve the flexible coverage of product, so that same equipment can be applicable to the bottle body detection needs of different sizes;Widespread applicability reduces the cost expenditure of customer end for the product equipment of different size bottle body needs, improves the economy and practicality of equipment.

[0022] 4, the utility model discloses a kind of Ⅳ-type hydrogen storage bottle inner container welding seam endoscopy and ultrasonic defect inspection machine, the Ⅳ-type hydrogen storage bottle inner container welding seam endoscopy and ultrasonic defect inspection machine adopt advanced mechanical structure and servo drive system, ensure the stability and reliability of detection process, avoid the problems that unstable operation and detection result can be susceptible to human factors in traditional manual detection mode;Equipment is also equipped with adjustable height foot and machine body shell and other accessories, further improve the stability and service life of equipment. BRIEF DESCRIPTION OF DRAWINGS

[0023] The solutions and advantages of the present application will become apparent to those of ordinary skill in the art, by reading the following detailed description of the preferred embodiments, in conjunction with the accompanying drawings. The drawings are merely schematic and are not drawn to scale. It is understood that the present application is not limited to the disclosed embodiments.

[0024] In the drawings:

[0025] Figure 1 It is a front face axonometric three-dimensional structure schematic view of the utility model embodiment a kind of Ⅳ-type hydrogen storage bottle inner container welding seam endoscopy and ultrasonic defect inspection machine without containing electric cabinet and equipment shell;

[0026] Figure 2 It is a three-dimensional structure schematic view of the utility model embodiment a kind of Ⅳ-type hydrogen storage bottle inner container welding seam endoscopy and ultrasonic defect inspection machine containing electric cabinet and equipment shell;

[0027] Figure 3 It is a three-dimensional structure schematic view of the utility model embodiment a kind of Ⅳ-type hydrogen storage bottle inner container welding seam endoscopy and ultrasonic defect inspection machine tailstock jacking assembly;

[0028] Figure 4 The three-dimensional structure of the defect inspection assembly of the IV type hydrogen storage bottle inner container welding seam endoscopy and ultrasonic defect inspection machine is shown in the figure.

[0029] Figure 5 The three-dimensional structure of the defect inspection assembly of the IV type hydrogen storage bottle inner container welding seam endoscopy and ultrasonic defect inspection machine is shown in the figure.

[0030] Figure 6 The schematic diagram of the IV type hydrogen storage bottle inner container and its welding seam in the background art is shown in the figure.

[0031] The components represented by the reference signs in the figure are:

[0032] The utility model discloses: 1, whole machine frame, 2, tailstock tight assembly, 3, defect inspection assembly, 4, welding seam endoscopy assembly, 5, machine body shell, 6, electric control cabinet, 7, head, 8, barrel, 9, welding seam.

[0033] 2-1, tight assembly support leg, 2-2, tight assembly crossbeam, 2-3, tight assembly servo motor, 2-4, tight assembly ball screw assembly, 2-5, tailstock, 2-6, tight cylinder, 2-7, guide assembly, 2-8, conical top block, 2-9, crossed roller bearing, 2-10 tight assembly linear guide rail.

[0034] 3-1, inspection assembly mounting support I, 3-2, inspection assembly mounting support II, 3-3, inspection assembly first servo motor, 3-4, double-output shaft speed reducer, 3-5, transmission shaft, 3-6, inspection assembly ball screw assembly, 3-7, inspection assembly linear guide rail, 3-8, inspection assembly slider, 3-9, inspection assembly support crossbeam, 3-10, water receiving groove, 3-11, inspection assembly linear module, 3-12, bending piece, 3-13, nozzle, 3-14, ultrasonic probe group, 3-15, laser ruler, 3-16, inspection assembly second servo motor.

[0035] 4-1, endoscopy assembly support leg, 4-2, endoscopy assembly support beam, 4-3, endoscopy assembly first servo motor, 4-4, rack, 4-5, endoscopy assembly linear guide rail assembly, 4-6, endoscopy assembly second servo motor, 4-7, probe head extension rod, 4-8, endoscopy assembly third servo motor, 4-9, servo turntable, 4-10, endoscope, 4-11, motor mounting plate. DETAILED DESCRIPTION EMBODIMENT

[0036] As Figures 1 to 5As shown in the figure, the type IV hydrogen storage bottle liner weld seam endoscopic and ultrasonic flaw detection machine comprises a whole machine frame 1, a tail seat pressing assembly 2, a flaw detection assembly 3, a weld seam endoscopic assembly 4, a machine body shell 5 and an electric control cabinet 6.

[0037] The flaw detection assembly 3 is fixedly installed on the left front side of the upper length direction of the whole machine frame 1, and the water tank 3-10 and the flaw detection ultrasonic device have up-down lifting function. The tail seat pressing assembly 2 is fixedly installed on the whole machine frame 1 and located at the rear side of the flaw detection assembly 3. The pressing device can automatically move through the ball screw and guide rail, and the center of the pressing device is located on the center of the water tank width direction. The weld seam endoscopic assembly 4 is fixedly installed on the right side of the whole machine frame 1, and the center of the endoscopic inspection endoscope is coaxial with the center of the pressing device in the tail seat pressing assembly 2. The electric control cabinet 6 is fixedly installed on the right side of the weld seam endoscopic assembly 4 of the whole machine frame 1. The bottom of the whole machine frame 1 is provided with adjustable height foot for adjusting the level of the equipment. The machine body shell 5 is fixedly installed on the circumference of the whole machine frame 1 to cover the internal structure.

[0038] As shown in the figure, Figure 3 The tail seat pressing assembly 2 is further provided with two sets of pressing assembly supporting legs 2-1. The pressing assembly supporting legs 2-1 are fixedly connected with the upper pressing assembly cross beam 2-2 through bolts. Two sets of pressing assembly linear guides 2-10 and pressing assembly ball screw assemblies 2-4 are fixedly installed on the front position of the pressing assembly cross beam 2-2. A driving pressing assembly servo motor 2-3 is fixedly installed on the end of the pressing assembly ball screw assembly 2-4. A tail seat 2-5 is installed on the slider of the pressing assembly linear guide 2-10.

[0039] A pressing cylinder 2-6 and a guide assembly 2-7 are respectively installed on the end of the tail seat 2-5. A cross roller bearing 2-9 is installed on the end of the guide assembly 2-7. A conical pressing block 2-8 is fixedly installed on the rotatable part of the cross roller bearing 2-9.

[0040] As shown in the figure, Figure 1 and Figure 4 The whole machine frame 1 is fixedly provided with a checking assembly mounting support I 3-1 and a checking assembly mounting support II 3-2. The checking assembly linear guide 3-7 and the checking assembly ball screw assembly 3-6 are respectively installed on the inner side of the checking assembly mounting support I 3-1 and the checking assembly mounting support II 3-2. The checking assembly ball screw assembly 3-6 is connected with the transmission shaft 3-5 through a shaft coupling and a reverser, and the two ends of the transmission shaft 3-5 are connected with a double-output shaft speed reducer 3-4. Finally, the checking assembly first servo motor 3-3 drives. The double-output shaft speed reducer 3-4 is fixedly installed on the upper surface of the whole machine frame 1.

[0041] The inspection assembly support beam 3-9 is installed on the inspection assembly slider 3-8 of the inspection assembly linear guide rail 3-7 inside the inspection assembly mounting support I 3-1 and the inspection assembly mounting support II 3-2, and can move up and down along the Z direction of the inspection assembly linear guide rail 3-7.

[0042] The water collecting groove 3-1 and the inspection assembly linear module 3-11 driven by the inspection assembly second servo motor 3-16 are respectively installed in front of and behind the width direction of the inspection assembly support beam 3-9.

[0043] The bending piece 3-12 is installed on the moving part of the inspection assembly linear module 3-11, and the laser scale 3-15, the ultrasonic probe group 3-14 and the nozzle 3-13 are sequentially installed from the end to the connecting end of the bending piece 3-12.

[0044] As shown in Figure 5 The welding seam endoscopic assembly 4 is also provided with two groups of endoscopic assembly support legs 4-1, the endoscopic assembly support legs 4-1 are fixedly installed above the endoscopic assembly support beam 4-2, the endoscopic assembly support beam 4-2 is fixedly installed on the side of the rack 4-4 and two groups of endoscopic assembly linear guide rail assemblies 4-5, the motor mounting plate 4-11 is provided on the slider of the endoscopic assembly linear guide rail assembly 4-5, and the endoscopic assembly first servo motor 4-3 is fixedly installed on the motor mounting plate 4-11 to drive the gear to cooperate with the rack 4-4 to walk.

[0045] The endoscopic assembly second servo motor 4-6 is provided on the upper side of the motor mounting plate 4-11, the probe head extension rod 4-7 connected with the cam mechanism is installed on the output end of the endoscopic assembly second servo motor 4-6, and the probe head extension rod 4-7 can be adjusted in the Z direction under the movement of the cam mechanism driven by the endoscopic assembly second servo motor 4-6.

[0046] The endoscope 4-10 is fixedly installed on the front end of the probe head extension rod 4-7, the endoscope 4-10 passes through the center of the servo turntable 4-9 installed above the inspection assembly mounting support I 3-1, and the endoscopic assembly third servo motor 4-8 for driving the rotation of the servo turntable 4-9 is fixedly installed on the rear end of the servo turntable 4-9. Embodiment

[0047] As shown in Figure 1 and Figure 2 The IV type hydrogen storage bottle liner welding seam endoscopic and ultrasonic defect inspection machine comprises a whole machine frame 1, a tail seat clamping assembly 2, a defect inspection assembly 3, a welding seam endoscopic assembly 4, a machine body shell 5 and an electric control cabinet 6.

[0048] The defect inspection assembly 3 is fixedly installed on the left front side of the upper length direction of the whole machine rack 1, and the water tank and the defect inspection ultrasonic device are provided with up-down lifting function. The tail seat clamping assembly 2 is fixedly installed on the whole machine rack 1 and located at the rear side of the defect inspection assembly 3. The clamping device is automatically movable through the ball screw and the guide rail, and the center of the clamping device is located on the center of the water tank width direction. The weld seam endoscope assembly 4 is fixedly installed on the right side of the whole machine rack 1, and the center of the endoscope for endoscope inspection is coaxial with the center of the clamping device in the tail seat clamping assembly 2. The electric control cabinet 6 is fixedly installed on the whole machine rack 1 on the right side of the weld seam endoscope assembly 4. The bottom of the whole machine rack 1 is provided with adjustable height feet for adjusting the level of the equipment. The body shell 5 is fixedly installed on the whole machine rack 1 to cover the internal structure. The formula for different specifications of products is set in the equipment control system. One formula corresponds to the position parameter information of each product in the equipment. Each product only needs to set the parameter once, and the next time the production is directly called by the number.

[0049] The equipment covers the product coverage through various adjustment mechanisms and stroke design to 200-400mm in diameter and 800-2500mm in product length, greatly improves the flexible coverage of the product, and to a certain extent, reduces the cost of the customer for different size bottle body demand product equipment.

[0050] As shown in Figure 3 The tail seat clamping assembly 2 includes a clamping assembly support leg 2-1, a clamping assembly cross beam 2-2, a clamping assembly servo motor 2-3, a clamping assembly ball screw assembly 2-4, a tail seat 2-5, a clamping cylinder 2-6, a guide assembly 2-7, a conical clamping block 2-8 and a cross roller bearing 2-9. The clamping assembly support leg 2-1 is fixedly connected with the clamping assembly cross beam 2-2 above by bolts. Two groups of clamping assembly linear guides 2-10 and clamping assembly ball screw assemblies 2-4 are fixedly installed at the front position of the clamping assembly cross beam 2-2 to adapt to different lengths of the inner container. A driving clamping assembly servo motor 2-3 is fixedly installed at the end of the clamping assembly ball screw assembly 2-4. The sliding block of the clamping assembly linear guide 2-10 is provided with the tail seat 2-5. The end of the tail seat 2-5 is provided with the clamping cylinder 2-6 and the guide assembly 2-7 respectively. The cross roller bearing 2-9 is installed at the end of the guide assembly 2-7. The rotating part of the cross roller bearing 2-9 rotates when the inner container is driven to rotate. The rotatable part of the cross roller bearing 2-9 is fixedly installed with the conical clamping block 2-8 to clamp the inner container bottle opening position, and the material is non-metal to avoid damage to the inner container bottle opening.

[0051] As shown in Figure 4As shown, the defect inspection assembly 3 comprises inspection assembly mounting support I 3-1, inspection assembly mounting support II 3-2, inspection assembly first servo motor 3-3, double-output shaft speed reducer 3-4, transmission shaft 3-5, inspection assembly ball screw assembly 3-6, inspection assembly linear guide rail 3-7, inspection assembly slider 3-8, inspection assembly support cross beam 3-9, water receiving groove 3-10, inspection assembly linear module 3-11, bending piece 3-12, nozzle 3-13, ultrasonic probe group 3-14, laser scale 3-15 and inspection assembly second servo motor 3-16, the inspection assembly linear guide rail 3-7 and the inspection assembly ball screw assembly 3-6 are respectively mounted on the inner sides of the inspection assembly mounting support I 3-1 and the inspection assembly mounting support II 3-2, the transmission shaft 3-5 is connected with the inspection assembly ball screw assembly 3-6 through a shaft coupling and a reversing device, and the two ends of the transmission shaft 3-5 are connected with the double-output shaft speed reducer 3-4, which is finally driven by the inspection assembly first servo motor 3-3 to realize the lifting action of the whole assembly to adapt to the detection requirements of inner containers of different diameters, the double-output shaft speed reducer 3-4 is fixedly installed on the upper surface of the whole machine frame 1, the inspection assembly support cross beam 3-9 is installed on the inspection assembly slider 3-8 of the inspection assembly linear guide rail 3-7 on the inner sides of the inspection assembly mounting support I 3-1 and the inspection assembly mounting support II 3-2, and can move up and down along the Z direction of the inspection assembly linear guide rail 3-7, the water receiving groove 3-1 and the inspection assembly linear module 3-11 driven by the inspection assembly second servo motor 3-16 are respectively installed on the front and rear of the width direction of the inspection assembly support cross beam 3-9, the bending piece 3-12 is installed on the moving part of the inspection assembly linear module 3-11, the laser scale 3-15, the ultrasonic probe group 3-14 and the nozzle 3-13 are sequentially installed on the bending piece 3-12 from the end to the connecting end, the ultrasonic probe group 3-14 and the nozzle 3-13 driven by the inspection assembly linear module 3-11 can move horizontally and transversely, and stop at any place of the linear segment of the inner container to spray water medium and perform ultrasonic defect detection.

[0052] As Figure 5As shown, the welding seam endoscope assembly 4 includes an endoscope assembly leg 4-1, an endoscope assembly support beam 4-2, an endoscope assembly first servo motor 4-3, a rack 4-4, an endoscope assembly linear guide rail assembly 4-5, an endoscope assembly second servo motor 4-6, a probe extension rod 4-7, an endoscope assembly third servo motor 4-8, a servo turntable 4-9, an endoscope 4-10, and a motor mounting plate 4-11. The endoscope assembly leg 4-1 is fixedly installed above the endoscope assembly support beam 4-2, and the endoscope assembly support beam 4-2 is fixedly installed on the side of the rack 4-4 and two groups of endoscope assembly linear guide rail assemblies 4-5. The motor mounting plate 4-11 is arranged on the slider of the endoscope assembly linear guide rail assembly 4-5, and the endoscope assembly first servo motor 4-3 is fixedly installed on the motor mounting plate 4-11 to drive the gear to move on the rack 4-4. The endoscope assembly second servo motor 4-6 is arranged on the upper side of the motor mounting plate 4-11, and the probe extension rod 4-7 connected with the cam mechanism is installed on the output end of the endoscope assembly second servo motor 4-6. The probe extension rod 4-7 can be adjusted in the Z direction under the movement of the cam mechanism driven by the endoscope assembly second servo motor 4-6. The endoscope 4-10 is fixedly installed on the front end of the probe extension rod 4-7, and the endoscope 4-10 passes through the center of the servo turntable 4-9 installed above the inspection assembly mounting support I 3-1. The servo turntable 4-9 is fixedly installed at the rear end of the endoscope assembly third servo motor 4-8 for driving the rotation of the servo turntable 4-9. When the endoscope assembly third servo motor 4-8 works, the self-made part installed at the front end of the servo turntable 4-9 is in contact with the inner container to make it rotate freely, so that the endoscope 4-10 can observe the conditions of any position on the inner container welding seam cross section.

[0053] The working process of the type IV hydrogen storage bottle inner container welding seam endoscope and ultrasonic defect inspection machine mainly includes the following steps:

[0054] Preparation and positioning: place the hydrogen storage bottle inner container to be detected in the designated position of the equipment. At this time, the tail seat clamping assembly starts to work, and through the internal clamping cylinder and conical clamping block (which can be rotated by cross roller bearings), the inner container bottle opening position is clamped and fixed. At the same time, the automatic movement function of the clamping device ensures that the clamping center is on the center of the water tank width direction to adapt to different lengths of the inner container.

[0055] Parameter setting and calling: in the equipment control system, according to the specifications of the inner container to be detected, select or input the corresponding formula. Each formula corresponds to a set of position parameter information of the equipment for each product, which ensures the accuracy and efficiency of the detection operation. If the parameters of the same specification product have been set before, the number can be directly called to save time.

[0056] Welding endoscopic detection: the welding endoscopic assembly starts to work. The first servo motor of the endoscopic assembly drives the gear to move on the rack, realizing the displacement of the endoscope in the horizontal direction. At the same time, the second servo motor of the endoscopic assembly adjusts the length of the probe extension rod through the cam mechanism, realizing the adjustment of the endoscope in the vertical direction. The servo turntable and the third servo motor of the endoscopic assembly work together, so that the endoscope can observe any position of the inner container welding seam section.

[0057] Ultrasonic defect inspection: the defect inspection assembly starts to work. The first servo motor of the inspection assembly drives the inspection assembly ball screw assembly through the double-output shaft reducer and transmission shaft, realizing the lifting action of the entire assembly to adapt to the detection needs of inner containers of different diameters. The second servo motor of the inspection assembly drives the inspection assembly linear module, driving the ultrasonic probe group and the nozzle to move horizontally and laterally. The ultrasonic probe group performs ultrasonic defect detection on any position of the inner container linear section, while the nozzle sprays water medium as a coupling agent for ultrasonic detection.

[0058] Detection and feedback: during the detection process, the ultrasonic probe group and the endoscope feed back the real-time collected data to the equipment control center. The internal program of the PLC precisely controls the walking position and action sequence of each component, ensuring the accuracy and efficiency of the detection. When the detection result is abnormal, the equipment will produce an alarm and stop, waiting for manual intervention. Manual can timely understand whether the inner container detection is qualified or not, and mark and handle unqualified products.

[0059] Completion and reset: when the detection operation is completed, each component starts to reset. The tail seat clamping assembly, the welding endoscopic assembly and the defect inspection assembly automatically return to the initial position or the safe position according to the preset parameter information. At this time, the worker can take down the inner container that has been detected and place a new inner container to be detected, repeating the above working process.

[0060] The whole process realizes the collaborative work of internal welding seam detection, wall thickness defect ultrasonic detection, automatic spraying of ultrasonic detection water medium, automatic clamping and positioning of the inner container, etc. through the precise control of the internal program of the PLC and the servo drive mechanism of the equipment itself. At the same time, the formula for different specifications of products set in the equipment control system makes the equipment flexible to meet the detection needs of inner containers of different sizes, greatly improving the efficiency and accuracy of inner container detection.

[0061] The type IV hydrogen storage bottle liner welding endoscope and ultrasonic defect inspection machine controls the walking position of the ultrasonic probe and the endoscope through the internal program of PLC, cooperates with the servo drive mechanism of the equipment itself to complete the internal welding detection, wall thickness defect ultrasonic detection, ultrasonic detection water medium automatic spraying, automatic clamping positioning of the liner and other actions, and the detection results are fed back to the equipment control center in real time. When the detection result is not good, the alarm stops and manual intervention is needed, so that the operator can know whether the liner detection is qualified or not in time. The control system is provided with formulas for different specifications of products, one formula corresponds to the position parameter information of each position in the equipment of one set of products. Each product only needs to set the parameters once, and the next time the production can directly call the number, which greatly improves the efficiency and accuracy of the liner detection and marks the accurate position of the unqualified products for subsequent production.

Claims

1. A type IV hydrogen storage cylinder liner weld seam endoscopic and ultrasonic defect inspection machine, characterized in that, The machine frame (1), tailstock clamping assembly (2), defect inspection assembly (3) and weld seam endoscope assembly (4) are installed on the machine frame (1); the tailstock clamping assembly (2) comprises a conical clamping block (2-8) capable of moving horizontally and rotating, the weld seam endoscope assembly (4) comprises an endoscope (4-10) capable of moving horizontally, a servo turntable (4-9) capable of rotating and a servo turntable rotating drive device, the conical clamping block (2-8) is concentric with the servo turntable (4-9), the conical clamping block (2-8) and the servo turntable (4-9) clamp two ends of the inner container respectively, the defect inspection assembly (3) comprises an ultrasonic probe group (3-14) capable of moving horizontally for ultrasonic inspection from the outside of the inner container, and the endoscope (4-10) passes through the center of the servo turntable (4-9) to enter the inner container for endoscope inspection.

2. The machine for inspecting the weld of the Type IV hydrogen storage cylinder inner container according to claim 1, characterized in that, The bottom of the machine frame (1) is provided with adjustable height feet.

3. The machine for inspecting the weld of the Type IV hydrogen storage cylinder liner according to claim 1, wherein, The machine body shell (5) is fixedly installed on the machine frame (1) to cover the tailstock clamping assembly (2), the defect inspection assembly (3) and the weld seam endoscope assembly (4) inside.

4. The machine for inspecting the inside of the weld of the Type IV hydrogen storage cylinder liner according to claim 3, characterized in that, An electric control cabinet (6) is installed on the machine frame (1).

5. The endoscopic and ultrasonic defect inspection machine for the weld seam of a Type IV hydrogen storage cylinder liner as described in claim 1, characterized in that, The tailstock clamping assembly (2) comprises a tailstock (2-5), a clamping cylinder (2-6), a guide assembly (2-7), a conical clamping block (2-8) and a cross roller bearing (2-9), the tailstock (2-5) is movably installed on the machine frame (1) in the horizontal direction, the cylinder body of the clamping cylinder (2-6) is fixed on the tailstock (2-5), the telescopic rod end of the clamping cylinder (2-6) is fixedly connected with one end of the guide assembly (2-7), the other end of the guide assembly (2-7) is provided with the cross roller bearing (2-9), and the rotating part of the cross roller bearing (2-9) is fixedly connected with the conical clamping block (2-8).

6. The type IV hydrogen storage cylinder liner weld inspection machine of claim 5, wherein, The tailstock (2-5) is fixedly connected on the sliding block of the clamping assembly ball screw assembly (2-4), the fixed end of the ball screw assembly (2-4) is installed on the clamping assembly cross beam (2-2), the clamping assembly cross beam (2-2) is provided with a clamping assembly servo motor (2-3) for driving the ball screw assembly (2-4), and the clamping assembly cross beam (2-2) is fixedly connected on the machine frame (1) through the clamping assembly support leg (2-1).

7. The type IV hydrogen storage cylinder liner weld inspection machine of claim 1, wherein, The defect inspection assembly (3) comprises an inspection assembly support beam (3-9), a water collecting groove (3-10), a nozzle (3-13), an ultrasonic probe group (3-14) and a laser scale (3-15), the inspection assembly support beam (3-9) is installed on the whole machine rack (1) in a lifting manner, the water collecting groove (3-10) is fixed on the inspection assembly support beam (3-9), the inspection assembly linear module (3-11) driven by the inspection assembly second servo motor (3-16) is installed on the inspection assembly support beam (3-9), the bending piece (3-12) is fixedly installed on the sliding block of the inspection assembly linear module (3-11), the nozzle (3-13), the ultrasonic probe group (3-14) and the laser scale (3-15) are fixed on the bending piece (3-12).

8. The type IV hydrogen storage cylinder liner weld inspection machine of claim 7, wherein, The inspection assembly installation support I (3-1) and the inspection assembly installation support II (3-2) are fixedly installed on the whole machine rack (1) and arranged in parallel with each other, the inspection assembly linear guide rails (3-7) and the inspection assembly sliding blocks (3-8) are respectively installed on the inner sides of the inspection assembly installation support I (3-1) and the inspection assembly installation support II (3-2), the two ends of the inspection assembly support beam (3-9) are fixedly connected with the two inspection assembly sliding blocks (3-8) on the two sides, the inspection assembly ball screw assemblies (3-6) are respectively installed on the inspection assembly installation support I (3-1) and the inspection assembly installation support II (3-2), the sliding blocks of the inspection assembly ball screw assemblies (3-6) are fixedly connected with the inspection assembly sliding blocks (3-8), the inspection assembly first servo motor (3-3) and the double-output-shaft speed reducer (3-4) for driving the inspection assembly ball screw assemblies (3-6) are fixedly installed on the whole machine rack (1), and the two output shafts of the double-output-shaft speed reducer (3-4) are connected with the inspection assembly ball screw assemblies (3-6) through the transmission shafts (3-5).

9. The type IV hydrogen storage cylinder liner weld inspection machine of claim 8, wherein, The welding seam endoscopic assembly (4) comprises a servo turntable (4-9), an endoscope (4-10) and a motor mounting plate (4-11), the servo turntable (4-9) and the driving endoscopic assembly third servo motor (4-8) of the servo turntable (4-9) are installed on the inspection assembly installation support I (3-1), the motor mounting plate (4-11) is movably installed on the whole machine rack (1) in a horizontal direction, and the endoscope (4-10) is fixedly installed on the motor mounting plate (4-11) through the probe head extension rod (4-7).

10. The type IV hydrogen storage cylinder liner weld inspection machine of claim 9, wherein, Two endoscope assembly supporting legs (4-1) are fixedly installed on the whole machine rack (1), an endoscope assembly supporting beam (4-2) is fixed between the two endoscope assembly supporting legs (4-1), an endoscope assembly linear guide rail assembly (4-5) is installed on the endoscope assembly supporting beam (4-2), a motor mounting plate (4-11) is fixedly installed on the sliding block of the endoscope assembly linear guide rail assembly (4-5), a rack (4-4) is installed on the endoscope assembly supporting beam (4-2), an endoscope assembly first servo motor (4-3) is installed on the motor mounting plate (4-11), a gear cooperating with the rack (4-4) is fixedly connected to the output shaft of the endoscope assembly first servo motor (4-3), and the motor mounting plate (4-11) is driven to slide along the guide rail of the endoscope assembly linear guide rail assembly (4-5) through the cooperation of the gear and the rack (4-4).

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