Metal material nondestructive testing device and method

Abstract

The invention discloses a nondestructive testing device and method for metal materials. The nondestructive testing device for metal materials includes a testing chamber, a reflection table and a loading arm. During use, when a fixed sleeve rotates in the opposite direction, a pressurized fastener is driven to rotate and snap onto the side of a metal plate, thereby completing the locking and snapping installation of the metal plate before testing, and avoiding problems such as the metal plate falling off and shaking during the testing process, thereby ensuring the ultrasonic testing effect. A first-level spray box is rotated to be parallel to the surface of the metal plate, and then a coupling agent liquid is continuously injected into a first-level booster nozzle through a first-level solenoid valve at the bottom of the first-level spray box. The first-level booster nozzle will evenly spray the coupling agent liquid during the reciprocating movement of the second-level movable part, thereby ensuring the coating effect of the coupling agent on the surface of the metal plate.

Description

Technical Field

[0001] The present invention relates to the technical field of nondestructive testing of metal materials, and in particular to a nondestructive testing device and method for metal materials. Background Art

[0002] Nondestructive testing of metal materials is a general term for all technical means that use the characteristics of sound, light, magnetism and electricity to detect whether there are defects or unevenness in the inspected object without damaging or affecting the performance of the inspected object, and provide information such as the size, location, nature and quantity of the defects, and then determine the technical status of the inspected object (such as whether it is qualified, service life, etc.).

[0003] The application characteristics of non-destructive testing are as follows: The biggest feature of non-destructive testing is that it can be tested without damaging the material and structure of the test piece. Therefore, after the implementation of non-destructive testing, the inspection rate of the product can reach 100%. However, not all items and indicators that need to be tested can be tested non-destructively, and non-destructive testing technology also has its own limitations. Some tests can only be carried out by destructive testing, so non-destructive testing cannot replace destructive testing. In other words, the evaluation of a workpiece, material, machine and equipment must compare and match the results of non-destructive testing with the results of destructive testing to make an accurate assessment; Correctly choose the time to implement non-destructive testing: During non-destructive testing, it is necessary to correctly choose the time to implement non-destructive testing according to the purpose of non-destructive testing; Correctly choose the most appropriate non-destructive testing method: Since various testing methods have certain characteristics, in order to improve the reliability of the test results, the types, shapes, locations and orientations of defects that may occur should be predicted according to the equipment material, manufacturing method, working medium, use conditions and failure mode, and the appropriate non-destructive testing method should be selected; Comprehensive application of various non-destructive testing methods: No non-destructive testing method is omnipotent, and each method has its own advantages and disadvantages. As many testing methods as possible should be used to complement each other to ensure the safe operation of pressure equipment. In addition, in the application of non-destructive testing, it should be fully recognized that the purpose of testing is not to pursue "high quality" with excessive requirements, but to focus on its economic efficiency under the premise of fully ensuring safety and appropriate risk rate. Only in this way can the application of non-destructive testing in pressure equipment achieve the expected purpose.

[0004] In the prior art, a nondestructive testing device for round bar and round tube metal materials is disclosed in the publication number "CN108212808B", and its structure includes a control machine, a material transfer machine, a material conveyor, and a transfer mechanism. The control machine is vertically connected to the material transfer machine and the material conveyor respectively, the material transfer machine and the material conveyor are parallel to each other, the transfer mechanism is installed inside the material transfer machine, the material transfer machine is located above the material conveyor, and the material transfer machine is installed with an inspection bin door through a hinge. The present invention detects the damaged material, and after the detection, a command is issued to drive the equipment to transfer the damaged material, and the command elevator drives the clamping robot to clamp, and then the clamping robot is moved to drive the rotation of the material, and then the return is achieved by pushing up the sliding mechanism, and the material is detected again for cyclic operation. The equipment can transfer the damaged material in time without manual material picking, is easy to use, saves time and effort, has high efficiency, has a low probability of material mixing, and reduces a large number of rework phenomena in the later stage.

[0005] However, the existing technology still has major deficiencies, such as:

[0006] In the above-mentioned device and the prior art, during the detection process, the surface of the metal plate is in direct contact with the probe. The ultrasonic probe is in direct contact with the surface of the metal plate, which can reduce the signal disorder problem caused by the influence of air on the probe. However, if the probe is in direct contact with the metal plate, if the metal plate is relatively rough, it will cause excessive wear of the probe. If the coupling agent is sprayed on the surface of the metal plate, the surface roughness of the metal plate can be reduced, the probe wear problem can be reduced and the ultrasonic signal can be stabilized. However, the thickness of the coupling agent is difficult to control. When the probe detects the surface of the metal plate in the area where the coupling agent is attached with different thicknesses, it is easy to cause distortion of the probe ultrasonic detection data. Summary of the invention

[0007] The object of the present invention is to provide a metal material nondestructive testing device and method to solve the problems raised in the above background technology.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a nondestructive testing device for metal materials, comprising a testing chamber, a reflection table and a loading arm, wherein a main rotating shaft is installed on the inner wall of the testing chamber, and the loading arm is installed on the rotating end of the main rotating shaft, wherein the loading arm is symmetrically arranged, a stable slot is arranged on one side of the loading arm, and the stable slot is used to install metal materials, the reflection table is arranged at the bottom area of ​​the testing chamber, and oblique stable arms are symmetrically installed on both sides of the top of the reflection table, and one end of the oblique stable arm is loaded on the bottom of the testing chamber;

[0009] A metal material non-destructive testing fastening unit, which is arranged at one end of the stabilizing slot and is used to fasten and stabilize the metal sheet before testing to avoid signal fluctuations during the testing process;

[0010] The metal ultrasonic non-destructive testing surface coupling agent uniform coating unit is arranged on both sides of the detection chamber, and is used to uniformly coat the coupling agent that can stabilize the ultrasonic signal on the surface of the metal plate before ultrasonic non-destructive testing, so as to achieve the purpose of enhancing the ultrasonic signal.

[0011] Preferably, the metal material non-destructive testing fastening unit includes a driving shaft seat, the driving shaft seat is installed on one side of the loading arm, a mounting groove is provided on one side of the loading arm, a pressurized fastener is placed in the mounting groove, a fixed sleeve is installed on the rotating end of the driving shaft seat, the pressurized fastener is fixed to one end of the fixed sleeve, and a buffer cotton layer is added to the contact area between the pressurized fastener and the metal material.

[0012] Preferably, the metal ultrasonic non-destructive testing surface coupling agent uniform coating unit includes a first-level coating part, the first-level coating part includes a first-level rotating arm, dual-drive guide rails are symmetrically installed on both sides of the detection chamber, and a first-level movable part and a second-level movable part are vertically arranged on the surface of the dual-drive guide rails, a first electric drive shaft is installed on the second-level movable part, one end of the first-level rotating arm is installed on the rotating end of the first electric drive shaft, a first-level fixed arm is installed on one end of the first-level rotating arm, a first-level spray box is installed between adjacent first-level fixed arms, a first-level solenoid valve is provided on one side of the first-level spray box, and a first-level booster nozzle is installed on the first-level solenoid valve at intervals.

[0013] Preferably, the metal ultrasonic non-destructive testing surface coupling agent uniform coating unit also includes a secondary coating part, the secondary coating part includes a secondary rotating arm, a second electric drive shaft is installed on the secondary movable part, the secondary rotating arm is installed on the rotating end of the second electric drive shaft, a motor fixing frame is installed on the secondary rotating arm, a stepper motor is installed on the motor fixing frame, a counterweight block is installed on the rotating end adjacent to the stepper motor, a secondary spray box is arranged on one side of the counterweight block, and a secondary solenoid valve is installed on one side of the secondary spray box.

[0014] Preferably, the metal ultrasonic non-destructive testing surface coupling agent uniform coating unit also includes a scraping part, the scraping part includes a mounting frame, the mounting frame is symmetrically arranged at both ends of the counterweight block, an adsorption bin is arranged on one side of the counterweight block, a smoothing brush roller is rotatably installed on the adjacent mounting frame, and the adsorption bin opening faces the smoothing brush roller area.

[0015] Preferably, an ultrasonic non-destructive testing unit is provided on one side of the reflection platform.

[0016] Preferably, the ultrasonic nondestructive testing unit includes a moving part, the moving part includes a bottom guide rail, the bottom guide rail is installed on one side of the reflection table, a stabilizing card plate is installed on the moving end of the bottom guide rail, a lateral stabilizing frame is installed on one side of the stabilizing card plate, a rotating disk is installed on the top of the lateral stabilizing frame, and a rotating roller is rotatably installed on the top of the rotating disk.

[0017] Preferably, the ultrasonic nondestructive testing unit also includes a detection part, which includes a strip plate, which is installed at the top of the rotating roller, and a telescopic cylinder is embedded in the surface of the strip plate. The telescopic cylinders are arranged in several groups at intervals, and an ultrasonic transmitting module is installed on the movable end of each group of telescopic cylinders, and an ultrasonic probe is arranged at the bottom of the ultrasonic transmitting module.

[0018] Preferably, the first-level solenoid valves are arranged in 9 groups, and the distance between each group of first-level solenoid valves is set to 6 cm;

[0019] The secondary solenoid valves are arranged in 7 groups, and the spacing between each group of the secondary solenoid valves is also set to 6 cm. The secondary solenoid valves and the primary solenoid valves are arranged alternately.

[0020] A method of use, based on the above-mentioned nondestructive testing equipment for metal materials, comprises the following steps:

[0021] S1: A buffer rubber block is provided at the bottom of one end of the inner cavity of the stable slot to reduce the collision of the metal plate. When the metal plate is installed vertically in place, the drive shaft seat is operated again to drive the fixed sleeve to rotate in the opposite direction. When the fixed sleeve rotates in the opposite direction, the pressurized fastener will be driven to rotate and buckle on the side of the metal plate, thereby completing the locking and buckling installation of the metal plate before the test, which can avoid the problem of the metal plate falling off and shaking during the test, and ensure the ultrasonic test effect;

[0022] S2: The first electric drive shaft installed on the second movable part rotates the first rotating arm and turns it up, so that the first fixed arm and the first spray box on the first rotating arm rotate parallel to the surface of the metal plate, and then the coupling agent liquid is continuously injected into the first booster nozzle through the first solenoid valve at the bottom of the first spray box. The first booster nozzle will evenly spray the coupling agent liquid during the reciprocating movement of the second movable part, thereby ensuring the coating effect of the coupling agent on the surface of the metal plate;

[0023] S3: Inject coupling agent liquid into the secondary booster nozzle through the secondary solenoid valve, and spray it onto the surface of the metal plate through the secondary booster nozzle. Since the secondary solenoid valve and the primary solenoid valve are arranged alternately, the coupling agent liquid sprayed from the primary booster nozzle and the secondary booster nozzle will not completely overlap, so that the coupling agent liquid can be fully sprayed on the surface of the metal plate, further ensuring the coating effect of the coupling agent on the surface of the metal plate;

[0024] S4: The smoothing brush roller installed on the other side of the counterweight can reciprocately scrape the area with thicker coupling agent on the surface of the metal plate while following the reciprocating movement of the first-level movable part, and collect the excess coupling agent into the adsorption chamber, thereby avoiding the waste of coupling agent and ensuring that the influence of air between the ultrasonic probe and the surface of the metal plate on the ultrasonic signal is eliminated during the ultrasonic testing process, further improving the ultrasonic non-destructive testing effect of the metal plate.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. When in use, after the metal sheet is installed vertically in place, operate the drive shaft seat again to drive the fixed sleeve to rotate in the opposite direction. When the fixed sleeve rotates in the opposite direction, it will drive the pressurized fastener to rotate and buckle on the side of the metal sheet, thereby completing the locking and buckling installation of the metal sheet before testing, which can avoid problems such as the metal sheet falling off and shaking during the testing process, and ensure the ultrasonic testing effect;

[0027] 2. When in use, the first-level spray box rotates to be parallel to the surface of the metal plate, and then the coupling agent liquid is continuously injected into the first-level booster nozzle through the first-level solenoid valve at the bottom of the first-level spray box. The first-level booster nozzle will evenly spray the coupling agent liquid during the reciprocating movement of the second-level active part, thereby ensuring the coating effect of the coupling agent on the surface of the metal plate;

[0028] 3. When in use, the smoothing brush roller can reciprocately scrape the area on the metal plate surface with thicker coupling agent while following the reciprocating movement of the first-level movable part, and collect the excess coupling agent into the adsorption chamber, thereby avoiding the waste of coupling agent and ensuring that during the ultrasonic testing process, the influence of air between the ultrasonic probe and the surface of the metal plate on the ultrasonic signal is eliminated, further improving the ultrasonic non-destructive testing effect of the metal plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is an overall schematic diagram of the device of the present invention;

[0030] Figure 2 It is a partial schematic diagram of the primary active part and the secondary active part in the present invention;

[0031] Figure 3 It is a partial schematic diagram of the lateral stabilizing frame in the present invention;

[0032] Figure 4 It is a schematic diagram of the limiting guide rod part in the present invention;

[0033] Figure 5 It is a schematic diagram of the smoothing brush roller part of the present invention;

[0034] Figure 6 It is a partial schematic diagram of the secondary rotating arm in the present invention;

[0035] Figure 7 It is a schematic diagram of the loading arm part of the present invention;

[0036] Figure 8 It is a partial schematic diagram of the primary rotating arm in the present invention;

[0037] Fig. 9 It is a schematic diagram of the partial staggered arrangement of the primary solenoid valve and the secondary solenoid valve in the present invention.

[0038] In the figure:

[0039] 1. Inspection chamber; 11. Main rotating shaft; 2. Reflection table; 21. Oblique stabilizing arm; 22. Limiting guide rod; 23. Connecting block; 3. Loading arm; 31. Mounting slot; 32. Drive shaft seat; 33. Fixed sleeve; 34. Pressurized fastener; 35. Stable slot; 4. First-stage rotating arm; 41. First-stage fixed arm; 42. First-stage spray box; 43. First-stage solenoid valve; 44. First-stage booster nozzle; 45. First electric drive shaft;

[0040] 5. Secondary rotating arm; 51. Second electric drive shaft; 52. Motor fixing bracket; 53. Stepper motor; 54. Secondary fixing arm; 55. Secondary spray box; 551. Secondary solenoid valve; 552. Secondary boost nozzle; 56. Counterweight; 57. Mounting bracket; 58. Smoothing brush roller; 59. Adsorption bin; 6. Dual-drive guide rail; 61. Primary movable part; 62. Secondary movable part; 7. Lateral stabilizing bracket; 71. Bottom guide rail; 72. Stabilizing clamping plate; 73. Rotating disk; 74. Rotating roller; 75. Strip plate; 76. Telescopic cylinder; 77. Ultrasonic transmitting module; 78. Ultrasonic probe. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] See also Figure 1-9 , the present invention provides a technical solution:

[0043] Embodiment 1: A nondestructive testing device for metal materials: comprising a testing chamber 1, a reflection table 2 and a loading arm 3, wherein a main rotating shaft 11 is installed on the inner wall of the testing chamber 1, and the loading arm 3 is installed on the rotating end of the main rotating shaft 11, wherein the loading arm 3 is symmetrically arranged, and a stable slot 35 is arranged on one side of the loading arm 3, and the stable slot 35 is used to install metal materials, the reflection table 2 is arranged at the bottom area of ​​the testing chamber 1, and oblique stable arms 21 are symmetrically installed on both sides of the top of the reflection table 2, and one end of the oblique stable arm 21 is loaded on the bottom of the testing chamber 1;

[0044] An ultrasonic nondestructive testing unit is arranged on one side of the reflection platform 2 .

[0045] The ultrasonic nondestructive testing unit includes a moving part, which includes a bottom guide rail 71. The bottom guide rail 71 is installed on one side of the reflection table 2. A stabilizing card plate 72 is installed on the moving end of the bottom guide rail 71. A lateral stabilizing frame 7 is installed on one side of the stabilizing card plate 72. A rotating disk 73 is installed on the top of the lateral stabilizing frame 7. A rotating roller 74 is rotatably installed on the top of the rotating disk 73.

[0046] The ultrasonic nondestructive testing unit also includes a testing part, which includes a strip plate 75, which is installed on the top of a rotating roller 74. A telescopic cylinder 76 is embedded in the surface of the strip plate 75. The telescopic cylinders 76 are arranged in a plurality of groups at intervals. An ultrasonic transmitting module 77 is installed on the movable end of each group of telescopic cylinders 76, and an ultrasonic probe 78 is arranged at the bottom of the ultrasonic transmitting module 77.

[0047] In this embodiment, after the coupling agent is sprayed and the surface thickness of the coupling agent is evenly smoothed, the strip plate 75 installed on the top of the rotating roller 74 can be partially rotated to the surface area of ​​the metal plate through the rotating roller 74 on the top of the rotating disk 73, and then the telescopic cylinder 76 is controlled to push each group of ultrasonic emission modules 77 and the ultrasonic probe 78 to fit the surface area of ​​the coupling agent and the metal plate, and then the bottom guide rail 71 is operated to drive the lateral stabilizing frame 7 to move back and forth. During the movement of the lateral stabilizing frame 7, the ultrasonic probe 78 sends out an ultrasonic signal through the ultrasonic probe 78, and returns after contacting the reflecting table 2, and receives the ultrasonic signal through the ultrasonic probe 78, so as to determine whether there are problems such as material fracture and damage in the metal plate, thereby ensuring the non-destructive detection effect of the metal plate.

[0048] The metal material non-destructive testing fastening unit is arranged at one end of the stabilizing slot 35, and is used to fasten and stabilize the metal sheet before testing to avoid signal fluctuations during the testing process;

[0049] The metal material non-destructive testing fastening unit includes a driving shaft seat 32, which is installed on one side of the loading arm 3. A mounting groove 31 is provided on one side of the loading arm 3, and a pressurized fastener 34 is placed in the mounting groove 31. A fixed sleeve 33 is installed on the rotating end of the driving shaft seat 32. The pressurized fastener 34 is fixed to one end of the fixed sleeve 33, and a buffer cotton layer is added to the contact area between the pressurized fastener 34 and the metal material.

[0050] In this embodiment, the channel of the stable slot 35 is opened, and the inspector can put the metal plate to be inspected into the stable slot 35 smoothly. A buffer rubber block is provided at the bottom of one end of the inner cavity of the stable slot 35 to reduce the collision of the metal plate. When the metal plate is installed vertically in place, the drive shaft seat 32 is operated again to drive the fixed sleeve 33 to rotate in the reverse direction. When the fixed sleeve 33 rotates in the reverse direction, it will drive the pressurized fastener 34 to rotate and engage with the side of the metal plate, thereby completing the locking and engaging installation of the metal plate before inspection.

[0051] The metal ultrasonic nondestructive testing surface coupling agent uniform coating unit is arranged on both sides of the testing chamber 1, and is used to uniformly coat the coupling agent that can stabilize the ultrasonic signal on the surface of the metal plate before the ultrasonic nondestructive testing, so as to achieve the purpose of improving the ultrasonic signal;

[0052] The metal ultrasonic nondestructive testing surface coupling agent uniform coating unit includes a primary coating part, which includes a primary rotating arm 4. Dual-drive guide rails 6 are symmetrically installed on both sides of the detection chamber 1. A primary movable part 61 and a secondary movable part 62 are arranged vertically on the surface of the dual-drive guide rail 6. A first electric drive shaft 45 is installed on the secondary movable part 62. One end of the primary rotating arm 4 is installed on the rotating end of the first electric drive shaft 45. A primary fixed arm 41 is installed on one end of the primary rotating arm 4. A primary spray box 42 is installed between adjacent primary fixed arms 41. A primary solenoid valve 43 is installed on one side of the primary spray box 42. A primary booster nozzle 44 is installed at intervals on the primary solenoid valve 43.

[0053] The metal ultrasonic nondestructive testing surface coupling agent uniform coating unit also includes a secondary coating part, which includes a secondary rotating arm 5, a second electric drive shaft 51 is installed on the secondary movable part 62, the secondary rotating arm 5 is installed on the rotating end of the second electric drive shaft 51, a motor fixing frame 52 is installed on the secondary rotating arm 5, a stepping motor 53 is installed on the motor fixing frame 52, a counterweight block 56 is installed on the rotating end of the adjacent stepping motor 53, a secondary spray box 55 is provided on one side of the counterweight block 56, and a secondary solenoid valve 551 is installed on one side of the secondary spray box 55;

[0054] The first-level solenoid valves 43 are arranged in 9 groups, and the distance between each group of first-level solenoid valves 43 is 6 cm;

[0055] The secondary solenoid valves 551 are arranged in 7 groups, and the spacing between each group of secondary solenoid valves 551 is also set to 6 cm. The secondary solenoid valves 551 and the primary solenoid valves 43 are arranged alternately.

[0056] In this embodiment, during the movement of the secondary movable part 62, the first electric drive shaft 45 installed on the secondary movable part 62 can be used to rotate and flip up the first rotating arm 4, so that the first fixed arm 41 and the first spray box 42 on the first rotating arm 4 are rotated to be parallel to the surface of the metal plate, and then the coupling agent liquid is continuously injected into the first booster nozzle 44 through the first electromagnetic valve 43 at the bottom of the first spray box 42. The first booster nozzle 44 will follow the reciprocating movement of the secondary movable part 62 and evenly spray the coupling agent liquid, thereby ensuring the coating effect of the coupling agent on the surface of the metal plate. When the primary movable part 61 reciprocates, the coupling agent liquid can be sprayed out by the first electromagnetic valve 43 installed on the first movable part 62. The second electric drive shaft 51 on the part 61 drives the secondary rotating arm 5 to rotate. When the secondary fixed arm 54 and the secondary spray box 55 are parallel to the surface of the metal plate, the second electric drive shaft 51 stops rotating, and then the coupling agent liquid is injected into the secondary booster nozzle 552 through the secondary solenoid valve 551, and sprayed to the surface of the metal plate through the secondary booster nozzle 552. Since the secondary solenoid valve 551 and the primary solenoid valve 43 are staggered, the coupling agent liquid sprayed from the primary booster nozzle 44 and the secondary booster nozzle 552 will not completely overlap, so that the coupling agent liquid can be fully sprayed on the surface of the metal plate, further ensuring the coating effect of the coupling agent on the surface of the metal plate.

[0057] The metal ultrasonic non-destructive testing surface coupling agent uniform coating unit also includes a scraping part, which includes a mounting frame 57, and the mounting frame 57 is symmetrically arranged at both ends of the counterweight block 56. An adsorption bin 59 is arranged on one side of the counterweight block 56, and a smoothing brush roller 58 is rotatably installed on the adjacent mounting frame 57, and the adsorption bin 59 opens toward the smoothing brush roller 58 area.

[0058] In this embodiment, after the secondary fixed arm 54 completes the reversal, the smoothing brush roller 58 installed on the other side of the counterweight block 56 can reciprocately scrape and level the area on the surface of the metal plate where the coupling agent is thicker while following the reciprocating movement of the primary movable part 61, and collect the excess coupling agent into the adsorption bin 59, thereby avoiding the waste of coupling agent and ensuring that during the ultrasonic detection process, the influence of the air between the ultrasonic probe 78 and the surface of the metal plate on the ultrasonic signal is eliminated, thereby further improving the ultrasonic non-destructive detection effect of the metal plate.

[0059] Embodiment 2:

[0060] Based on the first embodiment, in this embodiment, it is considered that if the stepping motor 53 is used to drive the secondary fixed arm 54 to rotate and reverse, so as to realize the smoothing brush roller 58 to brush and smooth the coupling agent on the surface of the metal plate, but the secondary fixed arm 54 has a limited length, which will affect the contact effect between the smoothing brush roller 58 and the metal plate. Therefore, in this embodiment, an adjustment mechanism of the motor fixing frame 52 can be added to avoid the above problem.

[0061] In this embodiment, the required slide groove is opened on the surface of the secondary rotating arm 5, and the guide rail for driving the corresponding motor fixing frame 52 to move is installed in the slide groove. The motor fixing frame 52 can slide back and forth in the slide groove through the external guide rail. When the smoothing brush roller 58 is needed to roll and brush the coupling agent on the metal surface, the guide rail can be operated to slowly lower the smoothing brush roller 58 to the surface of the metal plate, thereby ensuring the smoothing brush roller 58 to level the coupling agent on the surface of the metal plate.

[0062] A method of use, based on the above-mentioned nondestructive testing equipment for metal materials, comprises the following steps:

[0063] S1: A buffer rubber block is provided at the bottom of one end of the inner cavity of the stable slot 35 to reduce the collision of the metal sheet. When the metal sheet is installed vertically in place, the driving shaft seat 32 is operated again to drive the fixed sleeve 33 to rotate in the opposite direction. When the fixed sleeve 33 rotates in the opposite direction, the pressurized fastener 34 is driven to rotate and buckle on the side of the metal sheet, thereby completing the locking and buckling installation of the metal sheet before the test, which can avoid the problem of the metal sheet falling off and shaking during the test, and ensure the ultrasonic test effect;

[0064] S2: The first electric drive shaft 45 installed on the second movable part 62 is used to rotate and flip up the first rotating arm 4, so that the first fixed arm 41 and the first spray box 42 on the first rotating arm 4 are rotated to be parallel to the surface of the metal plate, and then the coupling agent liquid is continuously injected into the first booster nozzle 44 through the first electromagnetic valve 43 at the bottom of the first spray box 42. The first booster nozzle 44 will evenly spray the coupling agent liquid during the reciprocating movement of the second movable part 62, thereby ensuring the coating effect of the coupling agent on the surface of the metal plate;

[0065] S3: injecting coupling agent liquid into the secondary booster nozzle 552 through the secondary solenoid valve 551, and spraying it onto the surface of the metal plate through the secondary booster nozzle 552. Since the secondary solenoid valve 551 and the primary solenoid valve 43 are arranged alternately, the coupling agent liquid sprayed from the primary booster nozzle 44 and the secondary booster nozzle 552 will not completely overlap, so that the coupling agent liquid can be fully sprayed on the surface of the metal plate, further ensuring the coating effect of the coupling agent on the surface of the metal plate;

[0066] S4: The smoothing brush roller 58 installed on the other side of the counterweight block 56 can reciprocately scrape and level the area on the surface of the metal plate where the coupling agent is thicker while following the reciprocating movement of the first-level movable part 61, and collect the excess coupling agent into the adsorption bin 59, thereby avoiding the waste of coupling agent and ensuring that during the ultrasonic detection process, the influence of the air between the ultrasonic probe 78 and the surface of the metal plate on the ultrasonic signal is eliminated, thereby further improving the ultrasonic non-destructive detection effect of the metal plate.

[0067] Working principle: When the device is in use, the main rotating shaft 11 is first operated. The rotation of the main rotating shaft 11 will drive the loading arm 3 to rotate. When the stable slot 35 on the surface of the loading arm 3 rotates upward, the rotation of the main rotating shaft 11 is stopped. Then the driving shaft seat 32 is operated to drive the fixed sleeve 33 to rotate forward and flip up. When the fixed sleeve 33 flips forward, the stable slot 35 channel is opened, and the inspector can smoothly put the metal sheet to be inspected into the stable slot 35. A buffer rubber block is provided at the bottom of one end of the inner cavity of the stable slot 35 to reduce the collision of the metal sheet. When the metal sheet is installed vertically in place, the driving shaft seat 32 is operated again to drive the fixed sleeve 33 to rotate in the reverse direction. When the fixed sleeve 33 rotates in the reverse direction, it will drive the pressurized fastener 34 to rotate and buckle on the side of the metal sheet.

[0068] After the metal sheet is locked and fastened in the stable slot 35 inside the loading arm 3 by the pressurized fastener 34, the main rotating shaft 11 can be operated to rotate again, so that the loading arm 3 can be reset to a state parallel to the detection chamber 1. When the loading arm 3 is reset, the secondary movable part 62 can be driven to reciprocate by the provided dual-drive guide rail 6. During the movement of the secondary movable part 62, the primary rotating arm 4 can be rotated and flipped up by the first electric drive rotating shaft 45 installed on the secondary movable part 62, so that the primary fixed arm 41 and the primary spray box 42 on the primary rotating arm 4 are rotated to be parallel to the surface of the metal sheet, and then the coupling agent liquid is continuously injected into the primary booster nozzle 44 through the primary solenoid valve 43 at the bottom of the primary spray box 42. The primary booster nozzle 44 will evenly spray the coupling agent liquid during the reciprocating movement of the secondary movable part 62.

[0069] When the secondary movable part 62 is coated, the secondary movable part 62 is reset under the operation of the dual-drive guide rail 6, and then the dual-drive guide rail 6 drives the primary movable part 61 to move. When the primary movable part 61 moves back and forth, the secondary rotating arm 5 can be driven to rotate by the second electric drive shaft 51 installed on the primary movable part 61. When the secondary fixed arm 54 and the secondary spray box 55 are parallel to the surface of the metal plate, the rotation of the second electric drive shaft 51 is stopped, and then the coupling agent liquid is injected into the secondary booster nozzle 552 through the secondary solenoid valve 551, and sprayed to the surface of the metal plate through the secondary booster nozzle 552. Since the secondary solenoid valve 551 and the primary solenoid valve 43 are staggered, the coupling agent liquid sprayed from the primary booster nozzle 44 and the secondary booster nozzle 552 will not completely overlap, so that the surface of the metal plate is fully sprayed with the coupling agent liquid;

[0070] After the coupling agent is evenly sprayed, since it is inevitable that the coupling agent sprayed from the first-stage boost nozzle 44 and the second-stage boost nozzle 552 overlap, the second-stage fixed arm 54 can be driven by the provided stepper motor 53 to rotate and reverse. After the second-stage fixed arm 54 completes the reversal, the smoothing brush roller 58 installed on the other side of the counterweight block 56 can reciprocate and level the area on the surface of the metal sheet where the coupling agent is thicker in the process of following the reciprocating movement of the first-stage movable part 61, and collect the excess coupling agent into the adsorption chamber 59, thereby avoiding the waste of coupling agent and ensuring that the influence of the air between the ultrasonic probe 78 and the surface of the metal sheet on the ultrasonic signal is eliminated during the ultrasonic detection process.

[0071] When the coupling agent is sprayed and the surface thickness of the coupling agent is evenly smoothed, the strip plate 75 installed on the top of the rotating roller 74 can be rotated to the surface area of ​​the metal plate through the rotating roller 74 on the top of the rotating disk 73, and then the telescopic cylinder 76 is controlled to push each group of ultrasonic emission modules 77 and the ultrasonic probe 78 to fit the surface area of ​​the coupling agent and the metal plate, and then the bottom guide rail 71 is operated to drive the lateral stabilizing frame 7 to move back and forth. During the movement of the lateral stabilizing frame 7, the ultrasonic probe 78 sends out an ultrasonic signal through the ultrasonic probe 78, and returns after contacting the reflecting table 2, and receives the ultrasonic signal through the ultrasonic probe 78, so as to determine whether there is material fracture damage and other problems in the metal plate.

[0072] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A non-destructive testing device for metal materials, Features: The invention comprises a detection chamber (1), a reflection table (2) and a loading arm (3), wherein a main rotating shaft (11) is installed on the inner wall of the detection chamber (1), and the loading arm (3) is installed on the rotating end of the main rotating shaft (11), wherein the loading arm (3) is symmetrically arranged, and a stabilizing slot (35) is arranged on one side of the loading arm (3), and the stabilizing slot (35) is used to install metal materials, the reflection table (2) is arranged at the bottom area of ​​the detection chamber (1), and oblique stabilizing arms (21) are symmetrically installed on both sides of the top of the reflection table (2), and one end of the oblique stabilizing arm (21) is loaded on the bottom of the detection chamber (1); A metal material non-destructive testing fastening unit, the metal material non-destructive testing fastening unit being arranged at one end of the stabilizing slot (35) and being used to fasten and stabilize the metal sheet before testing to avoid signal fluctuations during the testing process; A metal ultrasonic non-destructive testing surface coupling agent uniform coating unit, the metal ultrasonic non-destructive testing surface coupling agent uniform coating unit being arranged on both sides of the testing chamber (1) and used for uniformly coating a coupling agent capable of stabilizing ultrasonic signals on the surface of the metal plate before ultrasonic non-destructive testing, thereby achieving the purpose of improving the ultrasonic signal; The metal material non-destructive testing fastening unit comprises a drive shaft seat (32), the drive shaft seat (32) being mounted on one side of the loading arm (3), the loading arm (3) being provided with a mounting groove (31) on one side, a pressurized fastener (34) being placed in the mounting groove (31), a fixed sleeve (33) being mounted on the rotating end of the drive shaft seat (32), the pressurized fastener (34) being fixed to one end of the fixed sleeve (33), and a buffer cotton layer being added to the contact area between the pressurized fastener (34) and the metal material; The metal ultrasonic non-destructive testing surface coupling agent uniform coating unit comprises a primary coating part, the primary coating part comprises a primary rotating arm (4), dual-drive guide rails (6) are symmetrically mounted on both sides of the testing chamber (1), a primary movable part (61) and a secondary movable part (62) are arranged vertically on the surface of the dual-drive guide rail (6), a first electric drive rotating shaft (45) is mounted on the secondary movable part (62), one end of the primary rotating arm (4) is mounted on the rotating end of the first electric drive rotating shaft (45), a primary fixed arm (41) is mounted on one end of the primary rotating arm (4), a primary spray box (42) is mounted between adjacent primary fixed arms (41), a primary electromagnetic valve (43) is mounted on one side of the primary spray box (42), and a primary booster nozzle (44) is mounted on the primary electromagnetic valve (43) at intervals.

2. A metal material nondestructive testing device according to claim 1, Features: The metal ultrasonic non-destructive testing surface coupling agent uniform coating unit further comprises a secondary coating portion, the secondary coating portion comprising a secondary rotating arm (5), a second electric drive rotating shaft (51) being mounted on the secondary movable portion (62), the secondary rotating arm (5) being mounted on the rotating end of the second electric drive rotating shaft (51), a motor fixing frame (52) being mounted on the secondary rotating arm (5), a stepping motor (53) being mounted on the motor fixing frame (52), a counterweight block (56) being mounted on the rotating end adjacent to the stepping motor (53), a secondary spray box (55) being arranged on one side of the counterweight block (56), and a secondary solenoid valve (551) being mounted on one side of the secondary spray box (55).

3. A metal material nondestructive testing device according to claim 2, Features: The metal ultrasonic non-destructive testing surface coupling agent uniform coating unit further comprises a scraping section, the scraping section comprising a mounting frame (57), the mounting frame (57) being symmetrically arranged at both ends of the counterweight block (56), an adsorption bin (59) being arranged on one side of the counterweight block (56), a smoothing brush roller (58) being rotatably mounted adjacent to the mounting frame (57), and the adsorption bin (59) opening being oriented toward the smoothing brush roller (58) region.

4. A metal material nondestructive testing device according to claim 3, Features: An ultrasonic non-destructive testing unit is provided on one side of the reflection platform (2).

5. A metal material nondestructive testing device according to claim 4, Features: The ultrasonic non-destructive testing unit comprises a moving part, the moving part comprises a bottom guide rail (71), the bottom guide rail (71) is mounted on one side of the reflection platform (2), a stabilizing card plate (72) is mounted on the moving end of the bottom guide rail (71), a lateral stabilizing frame (7) is mounted on one side of the stabilizing card plate (72), a rotating disk (73) is mounted on the top of the lateral stabilizing frame (7), and a rotating roller (74) is rotatably mounted on the top of the rotating disk (73).

6. A metal material nondestructive testing device according to claim 5, Features: The ultrasonic nondestructive testing unit further comprises a testing section, the testing section comprising a strip plate (75), the strip plate (75) being mounted on the top of the rotating roller (74), a telescopic cylinder (76) being embedded in the surface of the strip plate (75), the telescopic cylinders (76) being arranged in a plurality of groups at intervals, an ultrasonic emission module (77) being mounted on the movable end of each group of the telescopic cylinders (76), and an ultrasonic probe (78) being arranged at the bottom of the ultrasonic emission module (77).

7. A metal material nondestructive testing device according to claim 2, Features: The first-level solenoid valves (43) are arranged in 9 groups, and the distance between each group of the first-level solenoid valves (43) is set to 6 cm; The secondary solenoid valves (551) are arranged in 7 groups, and the spacing between each group of the secondary solenoid valves (551) is also set to 6 cm. The secondary solenoid valves (551) and the primary solenoid valves (43) are arranged in an alternating manner.

8. A method of use, based on the metal material non-destructive testing device according to claim 7, It is characterized in that The steps include: S1: A buffer rubber block is provided at the bottom of one end of the inner cavity of the stabilizing slot (35) to reduce the collision of the metal plate. When the metal plate is installed vertically in place, the driving shaft seat (32) is operated again to drive the fixing sleeve (33) to rotate in the reverse direction. When the fixing sleeve (33) rotates in the reverse direction, it drives the pressurizing fastener (34) to rotate and fasten to the side of the metal plate, thereby completing the locking and fastening installation of the metal plate before the detection, which can avoid the problem of the metal plate falling off and shaking during the detection process, and ensure the ultrasonic detection effect; S2: The first electric drive shaft (45) installed on the second movable part (62) is used to rotate and flip up the first rotating arm (4), so that the first fixed arm (41) and the first spray box (42) on the first rotating arm (4) are rotated to be parallel to the surface of the metal plate, and then the coupling agent liquid is continuously injected into the first booster nozzle (44) through the first electromagnetic valve (43) at the bottom of the first spray box (42). The first booster nozzle (44) will evenly spray the coupling agent liquid during the reciprocating movement of the second movable part (62), thereby ensuring the coating effect of the coupling agent on the surface of the metal plate; S3: injecting coupling agent liquid into the secondary booster nozzle (552) through the secondary solenoid valve (551), and spraying it onto the surface of the metal plate through the secondary booster nozzle (552). Since the secondary solenoid valve (551) and the primary solenoid valve (43) are arranged in a staggered manner, the coupling agent liquid sprayed from the primary booster nozzle (44) and the secondary booster nozzle (552) will not completely overlap, so that the coupling agent liquid is fully sprayed on the surface of the metal plate, further ensuring the coating effect of the coupling agent on the surface of the metal plate; S4: The smoothing brush roller (58) installed on the other side of the counterweight (56) can reciprocately scrape and level the area on the surface of the metal plate where the coupling agent is thicker, and collect the excess coupling agent into the adsorption chamber (59) while following the reciprocating movement of the primary movable part (61), thereby avoiding the waste of coupling agent and ensuring that the influence of air between the ultrasonic probe (78) and the surface of the metal plate on the ultrasonic signal is eliminated during the ultrasonic testing process, thereby further improving the ultrasonic non-destructive testing effect of the metal plate.

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