CN115932040B - Board detection device based on ultrasonic flaw detection technology - Google Patents

Abstract

The invention relates to the technical field of board flaw detection equipment, in particular to a board detection device based on an ultrasonic flaw detection technology, which comprises a base, wherein a limiting component is arranged on the upper surface of the base, a transmission component is arranged on the upper surface of the limiting component, an adjusting component is arranged on the transmission component, a fixed shell is fixedly connected below the adjusting component, a probe is fixedly connected inside the fixed shell, a uniform component is arranged inside the fixed shell, a couplant accumulated on one surface of the probe in the travelling direction of the probe flaw detection is collected through a collecting component and is transferred to the uniform component through a transferring component, the accumulated couplant is recoated at the position of the probe flaw detection, so that the uniformity of couplant coating is ensured, the influence of the accumulation of the couplant on the next flaw detection work of the probe is avoided, and the recoating of the couplant is not needed when repeated flaw detection is needed, so that the flaw detection efficiency of the probe is improved.

Description

A plate detection device based on ultrasonic flaw detection technology

Technical Field

The invention relates to the technical field of plate flaw detection equipment, and in particular to a plate flaw detection device based on ultrasonic flaw detection technology.

Background technique

Ultrasonic flaw detection is a method of inspecting defects in parts by using the characteristic that ultrasound can penetrate deep into metal materials and reflect at the edge of the interface when entering from one section to another. When the ultrasonic beam passes from the surface of the part through the probe to the inside of the metal, reflected waves are generated when encountering defects and the bottom of the part, forming pulse waveforms on the fluorescent screen. The location and size of the defects are determined based on these pulse waveforms.

Ultrasonic flaw detection equipment can be used to detect flaws in metal plates. Ultrasonic flaw detection equipment can be used to perform non-destructive flaw detection on metal plates, and it is more accurate in determining the position, size, shape and other aspects of internal reflectors, and can provide defect inspection results immediately.

However, the existing flaw detection equipment has the following disadvantages:

1. When performing flaw detection on metal plates, a special coupling agent needs to be applied to the flaw detection position of the metal plate to remove the air between the probe and the object to be detected, so that the ultrasonic wave can effectively penetrate the workpiece. During the flaw detection process of the workpiece, the probe will move on the metal plate and push part of the coupling agent from the metal plate to accumulate and spread to both sides of the probe, which will cause uneven application of the coupling agent at other positions on the metal plate, which will affect the accuracy of the flaw detection results during the flaw detection process;

2. During the flaw detection process, if a bulge appears at a certain position on the metal plate, when the probe encounters the bulge during the flaw detection of the metal plate, the probe will encounter resistance, which will cause the movement of the probe to be blocked and interrupt the normal flaw detection frequency of the probe, affecting the normal operation of the flaw detection equipment.

Summary of the invention

In order to solve the above technical problems, the present invention provides a plate inspection device based on ultrasonic flaw detection technology, which is achieved by the following specific technical means:

A plate inspection device based on ultrasonic flaw detection technology comprises a base, a limit assembly is arranged on the upper surface of the base, a transmission assembly is arranged on the upper surface of the limit assembly, an adjustment assembly is arranged on the transmission assembly, a fixed shell is fixedly connected below the adjustment assembly, a probe is fixedly connected inside the fixed shell, and a uniform assembly is arranged inside the fixed shell;

The uniform component includes a mounting bracket, the front and rear surfaces of the left side of the probe are fixedly connected to the mounting bracket, a receiving piece is commonly provided on the two mounting brackets, a uniform piece is provided on the right side of the probe, and a transmission piece is provided on the upper surface of the probe.

Furthermore, the limit assembly includes a support seat, the upper surface of the base is fixedly connected to the support seat, a raised blocking plate is arranged on the rear side of the support seat, the upper surface of the support seat is evenly provided with sliding grooves from left to right, and the lower surface of the support seat is evenly provided with plate groups corresponding to the sliding grooves, the plate group includes two front-to-back symmetrical connecting blocks, a sliding rod is arranged between the two connecting blocks of the same plate group, the circumferential surface of the sliding rod is slidably connected to the limit plate through a reset spring, and the top end of the limit plate passes through the sliding groove.

Furthermore, the uniformity member includes an elastic telescopic bearing plate, and the right side surface of the probe is fixedly connected to two front-to-back symmetrical elastic telescopic bearing plates, the telescopic ends of the elastic telescopic bearing plates are slidably connected to a connecting frame via a supporting spring, the bottom ends of the two connecting frames are commonly fixedly connected to a uniformity plate, the upper surface of the uniformity plate is fixedly connected to a push block located between the two connecting frames, the right side surface of the probe is fixedly connected to a bearing bracket located between the two elastic telescopic bearing plates, and a cam is rotatably connected to the bearing bracket.

Furthermore, the collecting member includes a connecting plate, and the opposite surfaces of the two mounting brackets are fixedly connected with the connecting plates, and a conveyor is rotatably connected between the opposite surfaces of the two connecting plates. The conveyor is composed of a conveyor belt and a transmission shaft, and there are multiple L-shaped telescopic collecting plates evenly distributed on the conveyor belt. The bottom ends of the opposite back surfaces of the two connecting plates are fixedly connected with two telescopic connecting rods, and the telescopic ends of the four telescopic connecting rods are commonly fixedly connected with a baffle.

Furthermore, the transmission component includes a pumping machine, the upper surface of the probe is fixedly connected to the pumping machine, the left and right sides of the pumping machine are fixedly connected to transmission tubes, the left side of the top inner surface of the fixed shell is fixedly connected to two front-to-back symmetrical telescopic adjustment rods, the bottom ends of the two telescopic adjustment rods are commonly fixedly connected to a suction head, and the end of the transmission tube on the left side of the pumping machine away from the pumping machine is fixedly connected to the upper surface of the suction head.

Furthermore, the adjustment component includes a mounting plate, which is fixedly connected to the transmission component, the front surface of the mounting plate is connected to a connecting plate via a displacement electric slider, the connecting plate is connected to a slide via a connecting spring for sliding up and down, the bottom end of the slide is fixedly connected to the upper surface of the fixed shell, and a pathfinder ball is fixedly connected to the left side of the fixed shell.

Furthermore, the transmission assembly includes a first track, the upper surface of the support seat is fixedly connected to the first track, the first track is slidably connected to the second track via an electric slider, and the second track is slidably connected to an adjustable electric slider.

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

1. The plate detection device based on ultrasonic flaw detection technology collects the coupling agent that will accumulate on the side of the probe in the direction of the flaw detection process through the receiving part and transfers it to the uniform part through the transfer part, and re-applies the accumulated coupling agent to the position where the probe has been flaw detection to ensure that the coupling agent is evenly applied, avoids the coupling agent from accumulating on the probe and affecting the subsequent flaw detection work of the probe, and when repeated flaw detection is required, there is no need to re-apply the coupling agent, thereby improving the flaw detection efficiency of the probe.

2. The plate detection device based on ultrasonic flaw detection technology can conveniently fix plates of different shapes by setting multiple limit plates, and the plate fixing method is simple. During the fixing operation, the plate can be fixed very quickly and then the flaw detection work can be started.

3. The plate detection device based on ultrasonic flaw detection technology can re-evenly apply the coupling agent on the path after the probe moves through the setting of a uniform plate, so as to ensure the uniformity of the coupling agent coating on the plate after the flaw detection of the probe, facilitate repeated flaw detection of the plate, and avoid the accumulation of coupling agent on the travel surface of the probe to prevent the occurrence of inaccurate flaw detection results of the probe after the coupling agent coating.

4. The plate detection device based on ultrasonic flaw detection technology can pass through the flaw detection route of the probe in advance during the flaw detection process of the probe through the setting of the pathfinder ball. When a protrusion appears on the plate, the pathfinder ball can lift the probe upward in advance so that the probe can pass smoothly through the protrusion on the plate to ensure the stability of the probe during the flaw detection process and make the flaw detection result of the probe more accurate.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of the appearance of the present invention from a first viewing angle.

FIG. 2 is an enlarged view of part A in FIG. 1 of the present invention.

FIG. 3 is a schematic diagram of the appearance of the present invention at a second viewing angle.

FIG. 4 is a side cross-sectional view of the present invention.

FIG. 5 is a schematic diagram of a fixed shell structure of the present invention.

FIG. 6 is a partial cross-sectional schematic diagram of FIG. 5 of the present invention.

FIG. 7 is a front cross-sectional view of FIG. 5 of the present invention.

FIG. 8 is a schematic diagram of a delivery piece and a receiving piece according to the present invention.

FIG. 9 is an enlarged view of portion B in FIG. 8 of the present invention.

In the figure: 1, base; 2, limit assembly; 3, transmission assembly; 4, adjustment assembly; 5, fixed shell; 6, uniform assembly; 7, probe; 21, support seat; 22, slide; 23, limit plate; 24, connecting block; 25, slide rod; 31, first track; 32, second track; 33, adjust electric slider; 41, mounting plate; 42, slide; 43, connecting plate; 44, pathfinder ball; 61, receiving piece; 62, mounting bracket; 63, transfer piece; 64, uniform piece; 611, connecting plate; 612, conveyor; 613, L-shaped telescopic receiving plate; 614, baffle; 615, telescopic connecting rod; 631, telescopic adjustment rod; 632, suction head; 633, pumping machine; 634, transfer tube; 641, push block; 642, bearing bracket; 643, cam; 644, elastic telescopic bearing plate; 645, uniform plate; 646, connecting frame.

Detailed ways

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.

Please refer to Figures 1, 5 and 6, a plate detection device based on ultrasonic flaw detection technology includes a base 1, a limit component 2 is arranged on the upper surface of the base 1, a transmission component 3 is arranged on the upper surface of the limit component 2, an adjustment component 4 is arranged on the transmission component 3, a fixed shell 5 is fixedly connected below the adjustment component 4, a probe 7 is fixedly connected inside the fixed shell 5, and a uniform component 6 is arranged inside the fixed shell 5.

During specific use, the metal plate is first limited by the limiting component 2, and then the position of the probe 7 is adjusted according to the metal plate by the transmission component 3. After the probe 7 is adjusted to the flaw detection position, the coupling agent is applied to the flaw detection position of the metal plate, and the metal plate is started to be flaw detected with the cooperation of the transmission component 3, so that the probe 7 adopts a route from right to left to perform flaw detection from front to back on the metal plate. During the flaw detection process, the travel route of the probe 7 is passed in advance by the adjustment component 4 to adjust the travel height of the probe 7 to ensure that the probe 7 can perform flaw detection smoothly, and the coupling agent on the metal plate is kept uniform by the uniform component 6 during the flaw detection process of the probe 7.

Please refer to Figures 3 and 4. The limiting assembly 2 includes a support seat 21. The upper surface of the base 1 is fixedly connected to the support seat 21. A raised blocking plate is arranged on the rear side of the support seat 21. The upper surface of the support seat 21 is evenly provided with slide grooves 22 from left to right, and the lower surface of the support seat 21 is evenly provided with plate groups corresponding to the slide grooves 22. The plate group includes two front-to-back symmetrical connecting blocks 24. A sliding rod 25 is arranged between the two connecting blocks 24 of the same plate group. The circumferential surface of the sliding rod 25 is slidably connected to the limiting plate 23 through a reset spring. The top of the limiting plate 23 passes through the slide groove 22.

Through the provision of a plurality of limiting plates 23, plates of different shapes can be conveniently fixed, and the fixing method of the plates is simple. During the fixing operation, the plates can be fixed very quickly, and then the flaw detection work can be started.

During specific use, before starting the flaw detection, first use the plate to resist the limit plate 23 and then push the limit plate 23 to the front side inside the slide groove 22. The width of the plate is different, and the number of limit plates 23 pushed by the plate will be different. Through the setting of multiple limit plates 23, the contact surface of the plate can be better fitted, and the limit plate 23 slides to the front side inside the slide groove 22. At the same time, under the action of the slide rod 25, the limit plate 23 can be made to slide smoothly inside the slide groove 22, and the return spring between the limit plate 23 and the slide rod 25 is compressed, and then the plate is continuously pushed until the plate is clamped between the limit plate 23 and the blocking plate on the rear side of the support seat 21, and the plate is firmly fixed under the action of the elastic force of the return spring itself.

Please refer to Figures 1 and 2. The transmission assembly 3 includes a first rail 31, the upper surface of the support seat 21 is fixedly connected with the first rail 31, the first rail 31 is slidably connected with the second rail 32 via a connected electric slider, the second rail 32 is slidably connected with an adjusting electric slider, the adjustment assembly 4 includes a mounting plate 41, the adjusting electric slider 33 is fixedly connected with the mounting plate 41, the front surface of the mounting plate 41 is connected with a connecting plate 43 via a displacement electric slider, the connecting plate 43 is slidably connected with a slide 42 via a connecting spring, the bottom end of the slide 42 is fixedly connected to the upper surface of the fixed shell 5, and the left side of the fixed shell 5 is fixedly connected with a pathfinder ball 44.

By setting the pathfinder ball 44, the probe 7 can pass through the flaw detection route in advance during the flaw detection process. When a protrusion appears on the plate, the pathfinder ball 44 can lift the probe 7 upward in advance so that the probe 7 can smoothly pass through the protrusion on the plate to ensure the stability of the probe 7 during the flaw detection process and make the flaw detection result of the probe 7 more accurate.

During specific use, at the beginning of flaw detection, the displacement electric slider drives the connecting plate 43 to move on the mounting plate 41, so that the probe 7 inside the fixed shell 5 at the bottom of the connecting plate 43 fits the upper surface of the plate, and then the electric slider 33 is adjusted to move inside the second track 32 and the connecting electric slider drives the second track 32 to move on the first track 31 to start flaw detection on the plate. When a protrusion appears on the travel route of the probe 7, the pathfinder ball 44 first passes over the protrusion and drives the fixed shell 5 to move upward. The slide 42 moves upward synchronously with the fixed shell 5, and at the same time, the connecting spring on the slide 42 is compressed. Under the action of the elastic force of the connecting spring itself, the probe 7 can always fit the plate.

Please refer to Figure 6, the uniform component 6 includes a mounting bracket 62, the front and rear surfaces of the left side of the probe 7 are fixedly connected with the mounting bracket 62, the two mounting brackets 62 are jointly provided with a collecting member 61, the right side of the probe 7 is provided with a uniform member 64, and the upper surface of the probe 7 is provided with a transmission member 63.

The coupling agent that accumulates on the side of the probe 7 in the direction of flaw detection during the flaw detection process is collected by the collecting member 61 and transferred to the uniform member 64 through the transferring member 63, and the accumulated coupling agent is re-applied to the position where the probe 7 has flaw detection to ensure that the coupling agent is evenly applied, to avoid the coupling agent accumulating on the probe 7 and affecting the subsequent flaw detection work of the probe 7, and when repeated flaw detection is required, there is no need to re-apply the coupling agent, thereby improving the flaw detection efficiency of the probe 7.

During specific use, during the flaw detection process of the probe 7, the collecting member 61 continuously transports the coupling agent accumulated on one side of the forward direction of the probe 7 to the side opposite to the moving direction of the probe 7 through the transfer member 63 as the flaw detection of the probe 7 proceeds, and re-applies the coupling agent to the path passed by the probe 7 through the uniform member 64.

Please refer to Figures 7 and 8. The receiving member 61 includes a connecting plate 611. The opposite surfaces of the two mounting brackets 62 are fixedly connected with the connecting plates 611. A conveyor 612 is rotatably connected between the opposite surfaces of the two connecting plates 611. The conveyor 612 is composed of a conveyor belt and a transmission shaft. There are multiple L-shaped telescopic receiving plates 613 evenly distributed on the conveyor belt. The bottom ends of the opposite back surfaces of the two connecting plates 611 are fixedly connected with two telescopic connecting rods 615. The telescopic ends of the four telescopic connecting rods 615 are commonly fixedly connected with a baffle 614. When the L-shaped telescopic receiving plate 613 passes through the baffle 614, the telescopic end of the L-shaped telescopic receiving plate 613 is in contact with the right side surface of the baffle 614, and the conveyor 612 is driven by an external motor.

During specific use, when the probe 7 is detecting flaws, the external motor drives the conveyor 612 to rotate on the connecting plate 611. During the rotation of the conveyor 612, the L-shaped telescopic collecting plate 613 rotates synchronously with the conveyor 612. When the L-shaped telescopic collecting plate 613 passes through the plate, the coupling agent accumulated on one side of the probe 7 in the moving direction is collected to its inner side through the L-shaped telescopic collecting plate 613, and the coupling agent is transported upward in a lifting state. When the L-shaped telescopic collecting plate 613 passes through the baffle 614, the baffle 614 scrapes the coupling agent attached to the outer side of the L-shaped telescopic collecting plate 613 to prevent the L-shaped telescopic collecting plate 613 from lifting the coupling agent and scattering it on the conveyor 612.

Please refer to Figures 7 and 8. The transmission member 63 includes a pumping machine 633. The pumping machine 633 is fixedly connected to the upper surface of the probe 7. Transfer tubes 634 are fixedly connected to the left and right sides of the pumping machine 633. Two front-to-back symmetrical telescopic adjustment rods 631 are fixedly connected to the left side of the top end of the inner surface of the fixed shell 5. The bottom ends of the two telescopic adjustment rods 631 are commonly fixedly connected to a suction head 632. The end of the transfer tube 634 on the left side of the pumping machine 633 away from the pumping machine 633 is fixedly connected to the upper surface of the suction head 632, and the end of the transfer tube 634 on the right side of the pumping machine 633 away from the pumping machine 633 is fixedly connected to the upper surface of the push block 641.

During specific use, during the process of flaw detection by the probe 7, the pumping machine 633 sucks away the coupling agent collected on the inner side of the L-shaped telescopic collecting plate 613 passing through the suction head 632 connected to the transfer tube 634 on its left side. When the L-shaped telescopic collecting plate 613 passes through the suction head 632, since the bottom of the suction head 632 is arranged in an arc shape, when the L-shaped telescopic collecting plate 613 passes through the suction head 632, the suction head 632 sucks away the coupling agent on the L-shaped telescopic collecting plate 613. At the same time, the L-shaped telescopic collecting plate 613 pushes the suction head 632 to move upward, and contracts the telescopic adjustment rod 631. When the L-shaped telescopic collecting plate 613 is away from the suction head 632, the suction head 632 is restored to its original position under the action of the telescopic adjustment rod 631, and the coupling agent on the next L-shaped telescopic collecting plate 613 is sucked. The pumping machine 633 sucks the coupling agent through the transfer tube 634 on its left side and then discharges it through the transfer tube 634 on its right side.

Please refer to Figures 7 and 9. The uniform member 64 includes an elastic telescopic bearing plate 644. Two front-to-rear symmetrical elastic telescopic bearing plates 644 are fixedly connected to the right side of the probe 7. The telescopic ends of the elastic telescopic bearing plates 644 are slidably connected to the connecting frames 646 through supporting springs. The bottom ends of the two connecting frames 646 are commonly fixedly connected to a uniform plate 645. The upper surface of the uniform plate 645 is fixedly connected to a push block 641 located between the two connecting frames 646. The right side of the probe 7 is fixedly connected to a bearing bracket 642 located between the two elastic telescopic bearing plates 644. A cam 643 is rotatably connected to the bearing bracket 642. The upper surface of the push block 641 is an inclined surface inclined to the left. The push block 641 is arranged below the cam 643. The push block 641 cooperates with the cam 643. The cam 643 is driven by an external motor. An outlet is provided on the lower surface of the uniform plate 645.

By setting the uniform plate 645, the coupling agent can be evenly re-applied on the path of the probe 7 after it moves, so as to ensure the uniformity of the coupling agent coating on the plate after the flaw detection by the probe 7, facilitate repeated flaw detection of the plate, and avoid the accumulation of coupling agent on the moving surface of the probe 7 to prevent the occurrence of inaccurate flaw detection results of the probe 7 after the coupling agent coating.

During specific use, the coupling agent is transported to the inside of the uniform plate 645 through the transfer tube 634 on the right side of the pumping machine 633, and falls back onto the route of the probe 7 after it moves through the outlet at the bottom of the uniform plate 645. During the movement of the probe 7, the external motor drives the cam 643 to rotate on the support bracket 642. When the raised surface of the cam 643 begins to contact the inclined surface of the push block 641, the push block 641 is pushed to move obliquely downward to the right direction as the cam 643 continues to rotate. The uniform plate 645 moves synchronously with the push block 641. At this time, the uniform plate 645 carries The movable connecting frame 646 slides downward on the elastic telescopic bearing plate 644 and compresses the supporting spring on the connecting frame 646. At the same time, the equalizing plate 645 drives the elastic telescopic bearing plate 644 to stretch through the connecting frame 646. When the raised surface of the cam 643 is away from the push block 641, the elastic force of the push block 641 and the elastic force of the supporting spring restore the equalizing plate 645 to its original position. As the cam 643 rotates cyclically, the equalizing plate 645 moves obliquely to the right cyclically, so that the coupling agent discharged from its bottom is evenly smeared on the path after the probe 7 moves.

Working principle: When in use, first limit the metal plate through the limit component 2, then adjust the position of the probe 7 according to the metal plate through the transmission component 3, after adjusting the probe 7 to the flaw detection position, apply coupling agent to the flaw detection position of the metal plate, and start flaw detection on the metal plate with the cooperation of the transmission component 3, so that the probe 7 adopts a route from right to left to perform flaw detection from front to back on the metal plate. During the flaw detection process, the travel route of the probe 7 is passed in advance by the adjustment component 4 to adjust the travel height of the probe 7 to ensure that the probe 7 can smoothly perform the flaw detection work, and the coupling agent on the metal plate is kept uniform during the flaw detection work of the probe 7 through the uniform component 6.

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 (4)

1. The utility model provides a panel detection device based on ultrasonic flaw detection technique, includes base (1), the upper surface of base (1) is provided with spacing subassembly (2), the upper surface of spacing subassembly (2) is provided with drive assembly (3), be provided with on drive assembly (3) adjusting part (4), the below fixedly connected with fixed shell (5) of adjusting part (4), the inside fixedly connected with probe (7) of fixed shell (5), the inside of fixed shell (5) is provided with even subassembly (6);

the uniform assembly (6) comprises mounting brackets (62), the front and rear surfaces of the left side of the probe (7) are fixedly connected with the mounting brackets (62), collecting pieces (61) are arranged on the two mounting brackets (62) together, the right side of the probe (7) is provided with a uniform piece (64), and the upper surface of the probe (7) is provided with a transmission piece (63);

The collecting piece (61) comprises connecting plates (611), two opposite surfaces of the mounting support (62) are fixedly connected with the connecting plates (611), a conveyor (612) is rotationally connected between the opposite surfaces of the two connecting plates (611), the conveyor (612) consists of a conveying belt and a transmission shaft, a plurality of L-shaped telescopic collecting plates (613) are uniformly distributed on the conveying belt, two telescopic connecting rods (615) are fixedly connected to the bottom ends of opposite surfaces of the two connecting plates (611), and baffle plates (614) are fixedly connected to telescopic ends of the four telescopic connecting rods (615) together;

The transmission piece (63) comprises a pumping machine (633), the upper surface of the probe (7) is fixedly connected with the pumping machine (633), the left side and the right side of the pumping machine (633) are fixedly connected with transmission pipes (634), the left side of the top end of the inner surface of the fixed shell (5) is fixedly connected with two telescopic adjusting rods (631) which are symmetrical front and back, the bottom ends of the two telescopic adjusting rods (631) are fixedly connected with a suction head (632) together, and one end, far away from the pumping machine (633), of the transmission pipe (634) on the left side of the pumping machine (633) is fixedly connected with the upper surface of the suction head (632);

The adjusting component (4) comprises a mounting plate (41), the mounting plate (41) is fixedly connected to the transmission component (3), a connecting plate (43) is connected to the front surface of the mounting plate (41) through a displacement electric sliding block, a sliding frame (42) is connected to the connecting plate (43) in an up-down sliding mode through a connecting spring, the bottom end of the sliding frame (42) is fixedly connected with the upper surface of the fixing shell (5), and a path finding ball (44) is fixedly connected to the left side of the fixing shell (5).

2. The board detection device based on ultrasonic flaw detection technology according to claim 1, the limiting component (2) comprises a supporting seat (21), the upper surface fixedly connected with supporting seat (21) of base (1), the rear side of supporting seat (21) is provided with bellied baffle, the upper surface of supporting seat (21) evenly is provided with spout (22) from left to right, and is located the lower surface of supporting seat (21) evenly and is provided with board group with spout (22) one-to-one, board group include two connecting blocks (24) of fore-and-aft symmetry, be provided with slide bar (25) between two connecting blocks (24) of same board group, the circumference of slide bar (25) is through reset spring sliding connection has limiting plate (23), the top of limiting plate (23) runs through spout (22).

3. The board detection device based on the ultrasonic flaw detection technology according to claim 1, the uniformity piece (64) comprises an elastic telescopic bearing plate (644), the right side face of the probe (7) is fixedly connected with two elastic telescopic bearing plates (644) which are symmetrical front and back, telescopic ends of the elastic telescopic bearing plates (644) are slidably connected with connecting frames (646) through supporting springs, bottom ends of the two connecting frames (646) are fixedly connected with a uniformity plate (645) together, the upper surface of the uniformity plate (645) is fixedly connected with a pushing block (641) located between the two connecting frames (646), the right side face of the probe (7) is fixedly connected with a bearing bracket (642) located between the two elastic telescopic bearing plates (644), and cams (643) are rotationally connected on the bearing bracket (642).

4. The board detection device based on the ultrasonic flaw detection technology according to claim 2, wherein the transmission assembly (3) comprises a first rail (31), the first rail (31) is fixedly connected to the upper surface of the supporting seat (21), a second rail (32) is slidingly connected to the first rail (31) through a connecting electric sliding block, and an adjusting electric sliding block (33) is slidingly connected to the second rail (32).