Ultrasonic nondestructive testing device

Abstract

The utility model provides an ultrasonic nondestructive testing device and relates to the technical field of online nondestructive testing. The detection device comprises a bottom frame, a guide frame, a driving belt assembly and a flaw detection assembly; the guide frame is used for guiding a workpiece to slide linearly; the driving belt assembly is used for driving the workpiece to slide in the direction of the guide frame; the flaw detection assembly is fixedly connected with the bottom frame through the adjusting assembly, and the flaw detection assembly is located on a moving route of the workpiece; the flaw detection assembly comprises an ultrasonic probe assembly; the ultrasonic probe assembly is mounted on the mounting frame through a telescopic assembly. When a workpiece passes through the ultrasonic probe assembly, the telescopic assembly is controlled by the motor to drive the ultrasonic probe assembly to stretch out and draw back, so that the distance between the ultrasonic probe assembly and the surface of the workpiece is adjusted, and the workpiece is prevented from impacting the ultrasonic probe assembly in the moving process. The ultrasonic nondestructive testing device can be used for ultrasonic nondestructive testing of workpieces with complex surfaces.

Description

Technical Field

[0001] The utility model relates to the technical field of on-line non-destructive testing, in particular to an ultrasonic non-destructive testing device for flaw detection of workpieces with uneven surfaces. Background Art

[0002] Large-scale amusement facilities belong to special equipment as stipulated by relevant regulations, and their use and maintenance need to meet requirements. If there are defects inside the main structure of large-scale amusement facilities, it will seriously affect the safety of use and it is very difficult to be discovered in the later stage. Therefore, non-destructive flaw detection in the form of full inspection is required before leaving the factory.

[0003] Ultrasonic testing is one of the conventional non-destructive testing methods. It utilizes the stable linear propagation and reflection characteristics of ultrasonic waves to monitor the abnormal situation of the ultrasonic waves reflected in advance at the internal defects of the workpiece, and obtains whether there are defects inside the workpiece and the positions of the defects, so as to achieve the purpose of non-destructive ultrasonic testing.

[0004] Large-scale amusement facilities need to consider their aesthetics, and the shapes of the main enclosing parts on the sides are designed to be complex and diverse, which poses higher requirements for the ultrasonic testing carried on the production line; for the existing ultrasonic testing devices carried on the production line, the distance between the detection probe and the workpiece always remains constant, and it can only be used to detect some workpieces with flat surfaces. For some workpieces with uneven surfaces and complex and diverse structures, during the detection process, it is very easy that the distance between some protruding parts of the workpiece and the detection probe is too close, which will bump the detection probe, or the distance between some concave parts and the detection probe is too far to accurately detect, resulting in that the traditional ultrasonic testing device carried on the production line cannot be applied to complex structure workpieces with irregular shapes and uneven surfaces. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the utility model provides an ultrasonic non-destructive testing device for non-destructive flaw detection of workpieces with uneven outer surfaces, which can solve the problem that the traditional ultrasonic testing device carried on the production line cannot be applied to the detection of workpieces with uneven outer surfaces.

[0006] To achieve the above object, the utility model provides an ultrasonic non-destructive testing device, including a chassis, a driving belt assembly and a flaw detection assembly. A guiding frame is fixedly installed on the chassis, and the guiding frame is used to guide the workpiece to slide linearly; the driving belt assembly is slidably installed on the chassis, and a first telescopic member is fixedly connected to the chassis, and the telescopic end of the first telescopic member is fixedly installed with the driving belt assembly, and the driving belt assembly is used to drive the workpiece to slide along the direction of the guiding frame;

[0007] The flaw detection assembly is fixedly connected to the base frame through the adjustment assembly, and the flaw detection assembly is located on the moving route of the workpiece; the adjustment assembly includes a mounting plate and a transverse telescopic member, a side surface of the mounting plate is fixedly connected to a sliding frame, and the sliding frames are provided with two groups, and the two groups of sliding frames are symmetrically arranged; the rear end of the transverse telescopic member is slidably connected to the sliding frame, and a screw for fixing the mounting plate and the mounting plate is threadedly installed on the mounting plate, and the telescopic end of the transverse telescopic member is fixedly connected to the mounting frame;

[0008] The flaw detection assembly includes a control ultrasonic probe assembly, which is installed on the mounting frame through a telescopic assembly, and the telescopic assembly includes a support frame, a second vertical frame and a second rotating shaft. The support frame is fixed on the mounting frame, and the second vertical frame is fixedly connected to the support frame. A sliding member is slidably connected to the side of the second vertical frame, and a gear condition is provided on the side of the sliding member. The ultrasonic probe assembly is fixedly connected to the end of the sliding member; the second rotating shaft is rotatably installed with the support frame, and a motor is fixedly installed on the support frame, and the output end of the motor is transmission-connected to the second rotating shaft, and a gear member is fixedly installed on the side of the second rotating shaft, and the gear member is meshed with the gear condition.

[0009] The better technical solution of the utility model is as follows: the support frame is a transversely arranged H-shaped frame, the second rotating shaft is fixed at one end of the transversely arranged H-shaped frame, and a workpiece concave-convex surface sensing device is arranged at the other end of the transversely arranged H-shaped frame; the workpiece concave-convex surface sensing device includes a first rotating shaft that can rotate elastically, an encoder for obtaining rotation information of the first rotating shaft, an ultrasonic probe assembly, a telescopic assembly for controlling the gap between the ultrasonic probe assembly and the workpiece, and a PLC controller, a spiral barrel shell with a spiral cross-section is fixedly mounted on the first rotating shaft; along the moving direction of the workpiece, the ultrasonic probe assembly is located in front of the spiral barrel shell; when the workpiece moves to the position corresponding to the spiral barrel shell, the outer wall of the spiral barrel shell contacts the surface of the workpiece; the signal output end of the encoder is connected to the signal input end of the PLC controller, and the signal output end of the PLC controller is connected to the control end of the motor.

[0010] The better technical solution of the utility model is as follows: the supporting frame comprises a horizontal frame, the top of the horizontal frame is fixedly connected to a vertical plate frame, and the adjustment assembly is fixedly installed with the vertical plate frame; the bottom of the horizontal frame is fixedly connected to a lower bracket, a sliding opening is formed between the lower bracket and the horizontal frame, and the driving belt assembly is slidably installed on the inner side of the sliding opening.

[0011] A preferred technical solution of the present utility model: The drive belt assembly includes a sliding bottom bracket. At both ends of the sliding bottom bracket and on its top, a first roller and a second roller are respectively rotatably installed. A transmission belt is installed on the first roller and the second roller. A first motor is fixedly installed on the sliding bottom bracket, and the output end of the first motor is in transmission connection with the rotating shaft of the first roller.

[0012] A preferred technical solution of the present utility model: The guiding frame includes a main body support frame, a lower guiding seat, and a second telescopic member. The main body support frame includes a hollow vertical frame. At the top of the hollow vertical frame, an upper connecting portion is fixedly connected, and at the bottom of the hollow vertical frame, a lower connecting portion is fixedly connected. The lower guiding seat is fixedly connected to the lower connecting portion. The top of the lower guiding seat has a guiding groove. On the top of the lower guiding seat, an adjustable retaining member is fixedly connected by screws, and a sliding hole is provided on the adjustable retaining member. At the top of the upper connecting portion, a second telescopic member is fixedly installed. The bottom end of the second telescopic member passes through the upper connecting portion, and the bottom end of the second telescopic member is fixedly connected to an upper guiding seat.

[0013] A preferred technical solution of the present utility model: A protective shell covering the gear member and the tooth condition is fixedly installed on the side of the second vertical frame. The controller of the motor is in communication connection with the PLC controller.

[0014] A preferred technical solution of the present utility model: The ultrasonic probe assembly is a long block formed by arranging multiple ultrasonic probes side by side. The long block ultrasonic probe assembly is vertically installed at the front end of the sliding member, and its sensing surface faces the workpiece to be detected.

[0015] A preferred technical solution of the present utility model: A coupling agent spraying assembly is fixedly installed on one side of the spiral cylinder housing. The coupling agent spraying assembly includes: a coupling agent storage tank, a nozzle member, a pipeline, and a pulse pump. The nozzle member is fixedly installed inside the spiral cylinder housing, and a strip-shaped opening corresponding to the nozzle member is provided on the side of the spiral cylinder housing. The pipeline connects the coupling agent storage tank and the nozzle member, and the pulse pump is installed on the pipeline.

[0016] A preferred technical solution of the present utility model: A speed sensor is fixedly connected to the first vertical frame in the middle of the horizontally H-shaped support frame. The speed sensor is in communication connection with the PLC controller.

[0017] The better technical solution of the utility model is as follows: a winding roller is fixedly mounted on the first rotating shaft, a winding belt is wound on the winding roller, a first end of the winding belt is fixedly connected to the side of the winding roller, a guide rod and a fixed frame parallel to the first rotating shaft are fixedly mounted on the support frame, the second end of the winding belt is fixedly connected to the fixed frame after passing around the guide rod, the winding belt has at least one elastic section, the winding direction of the winding belt on the winding roller is opposite to the spiral direction of the spiral drum shell, the encoder is fixedly mounted on the support frame, and the detection end of the encoder is transmission-connected to the first rotating shaft, the telescopic assembly is fixedly mounted on the support frame, and the ultrasonic probe assembly is fixedly mounted on the telescopic end of the telescopic assembly.

[0018] The PLC controller and encoder in the utility model are both existing devices, the cross-section of the spiral barrel shell is a spiral line, and the distances from the position of each position on the circumference of the spiral barrel shell to the center of the circle are different. For example, when rotating toward the right, the distance L between the shell opposite to the front of the spiral barrel shell and the center of the circle increases, and when rotating to the left, the distance L between the shell opposite to the front of the spiral barrel shell and the center of the circle decreases; when setting the program, the distance L between the spiral barrel shell and the center of the first rotating shaft is matched one by one with the position of the first rotating shaft, and the PLC controller obtains the rotation position information of the first rotating shaft according to the encoder, and the workpiece to be detected is in a position that fits the side of the spiral barrel shell, so that the straight-line distance between the workpiece to be detected and the center of the first rotating shaft can be obtained, and the surface convex / concave information of the workpiece to be detected is obtained.

[0019] The utility model has the following beneficial effects:

[0020] (1) The utility model configures the flaw detection assembly to be telescopic, and can control the ultrasonic probe assembly to be telescopic when the workpiece flows through, thereby adjusting the position of the ultrasonic probe assembly and the workpiece surface, so that it can adapt to the detection of workpieces with uneven surfaces, avoid the problem of the ultrasonic probe assembly being damaged by the workpiece hitting the ultrasonic probe assembly during movement, and avoid the problem of some concave parts of the workpiece being too far away from the ultrasonic probe assembly, which affects the detection accuracy. Compared with the traditional ultrasonic detection device mounted on the assembly line, the utility model can perform ultrasonic non-destructive detection on workpieces with complex uneven surfaces (such as wavy surfaces).

[0021] (2) In order to increase the automatic control of the probe's telescoping, the present utility model adds components such as a first rotating shaft, a spiral barrel housing, and an encoder. The first rotating shaft is installed as an elastically rotatable structure. When the workpiece passes by the side of the spiral barrel housing, it can drive the spiral barrel housing to rotate, causing the spiral barrel housing to slide along the side of the workpiece. Used in conjunction with the coupling agent spraying component, it can better achieve the uniform application of the coupling agent. Moreover, the rotation of the spiral barrel housing follows the change of the workpiece's side. By obtaining the rotation data of the spiral barrel housing and the first rotating shaft through the encoder, the concave and convex changes of the workpiece's side can be judged. Then, the PLC controller controls the telescoping component to drive the ultrasonic probe component to telescope, so as to maintain an appropriate distance from the workpiece for detection; the automatic adjustment function of the ultrasonic probe component is realized.

[0022] (3) The present utility model designs a winding belt structure. The winding direction of the winding belt on the winding drum is opposite to the spiral direction of the spiral barrel housing, and at least one section of the winding belt is an elastic section. When the spiral barrel housing is squeezed inward, the first rotating shaft winds the winding belt, and the winding belt is stretched. The elastic reaction force of the winding belt causes the first rotating shaft to have a tendency of elastic rotation, thereby causing the spiral barrel housing to have a tendency of elastic rotation, enabling the spiral barrel housing to slide well along the surface of the workpiece. Description of the Drawings

[0023] Figure 1 is a three-dimensional view of the non-destructive testing device in the present utility model;

[0024] Figure 2 is a front view of the non-destructive testing device in the present utility model;

[0025] Figure 3 is a top view of the non-destructive testing device in the present utility model;

[0026] Figure 4 is a side view of the non-destructive testing device in the present utility model;

[0027] Figure 5 is a three-dimensional schematic diagram of the non-destructive testing device in the present utility model when it is working;

[0028] Figure 6 is a three-dimensional schematic diagram of the diversion frame in the present utility model;

[0029] Figure 7 is a three-dimensional schematic diagram of the flaw detection component in the present utility model;

[0030] Figure 8 is a three-dimensional schematic diagram of the support frame in the present utility model;

[0031] Figure 9 is Figure 7 a partial enlarged view at position A in

[0032] Figure 10 Schematic diagram of encoder installation for the non-destructive testing device in the present utility model;

[0033] Figure 11 Control schematic diagram of the non-destructive testing device in the present utility model;

[0034] Figure 12 Cross-sectional schematic diagram of the spiral cylinder housing of the non-destructive testing device in the present utility model.

[0035] Wherein, 1, chassis; 101, vertical plate frame; 102, horizontal frame; 103, lower bracket; 2, first telescopic member; 3, drive belt assembly; 301, sliding bottom support; 302, first roller; 303, second roller; 304, conveyor belt; 305, first motor; 4, adjustment assembly; 401, mounting plate; 402, sliding frame; 403, horizontal telescopic member; 404, mounting bracket; 5, flaw detection assembly; 501, support frame; 501a, upper horizontal frame; 501b, first vertical frame; 501c, lower horizontal frame; 502, speed sensor; 503, first rotating shaft; 504, winding roller; 505, winding belt; 505a, elastic section; 506, guide rod; 507, fixed frame; 508, encoder; 509, coupling agent spraying assembly; 509a, nozzle member; 509b, coupling agent storage tank; 509c, pipeline; 509d, pulse pump; 5010, spiral cylinder housing; 5011, second rotating shaft; 5012, second vertical frame; 5013, sliding member; 5014, motor; 5015, gear member; 5016, tooth condition; 5017, protective shell; 5018, ultrasonic probe assembly; 5019, PLC controller; 6, guide frame; 601, main body support frame; 601a, upper connection part; 601b, hollow vertical frame; 601c, lower connection part; 602, lower guide seat; 603, adjustable retaining buckle; 603a, sliding hole; 604, second telescopic member; 605, upper guide seat; 7, workpiece. Detailed implementation manners

[0036] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0037] The embodiment provides an ultrasonic non-destructive testing device, as Figures 1 - 11As shown in the figure, the nondestructive testing device includes a chassis 1, a guiding frame 6, a driving belt assembly 3, and a flaw detection assembly 5. The guiding frame 6 is fixedly installed on the chassis 1. The guiding frame 6 is used to guide the workpiece 7 to slide linearly, enabling the workpiece 7 to slide linearly more stably. The driving belt assembly 3 is slidably installed on the chassis 1, and a first telescopic member 2 is fixedly connected to the chassis 1. The telescopic end of the first telescopic member 2 is fixedly installed on the driving belt assembly 3. The first telescopic member 2 expands and contracts to adjust the relative position between the driving belt assembly 3 and the chassis 1, so that the driving belt assembly 3 can lean against the side of the workpiece 7. After adjusting the relative position between the driving belt assembly 3 and the chassis 1, the first telescopic member 2 remains fixed. At this time, the driving belt assembly 3 and the chassis 1 are in a fixed state. The driving belt assembly 3 is used to drive the workpiece 7 to slide along the direction of the guiding frame 6. The flaw detection assembly 5 is fixedly connected to the chassis 1 through an adjustment assembly 4. The position of the flaw detection assembly 5 is adjusted through the adjustment assembly 4 to match the position of the workpiece 7. The flaw detection assembly 5 performs flaw detection on the workpiece 7 during the sliding process of the workpiece 7, realizing efficient flaw detection work on the assembly line.

[0038] As Figures 7 - 10 shown, the flaw detection assembly 5 in the embodiment includes a first rotating shaft 503 that can elastically rotate, an encoder 508 for obtaining the rotation information of the first rotating shaft 503, an ultrasonic probe assembly 5018, a telescopic assembly for controlling the ultrasonic probe assembly 5018 to maintain a gap with the workpiece 7 to be detected, and a PLC controller 5019. A spiral cylindrical shell 5010 with a spiral cross-section is fixedly installed on the first rotating shaft 503. The encoder 508 is located at the top of the first rotating shaft 503. The PLC controller 5019 is in signal connection with the encoder 508. The cross-section of the spiral cylindrical shell 5010 is a spiral. The distances from the positions at various circumferences of the spiral cylindrical shell 5010 to the center of the circle are different. As Figure 12 shown in the figure, the distance L from the shell opposite to the front of the spiral cylindrical shell 5010 to the center of the circle is between R and r. R represents the distance from a certain point on the left side of the front of the spiral cylindrical shell 5010 to the center of the circle, and r represents the distance from a certain point on the right side of the front of the spiral cylindrical shell 5010 to the center of the circle. When the spiral cylindrical shell 5010 rotates with the first rotating shaft 503, for example, when rotating towards the right, the distance L from the shell opposite to the front of the spiral cylindrical shell 5010 to the center of the circle increases. When rotating towards the left, the distance L from the shell opposite to the front of the spiral cylindrical shell 5010 to the center of the circle decreases. The PLC controller 5019 analyzes the information of the convex / concave surface of the workpiece 7 to be detected based on the rotation information of the first rotating shaft 503 obtained by the encoder 508, controls the telescopic assembly to adjust the position of the ultrasonic probe assembly 5018, and along the moving direction of the workpiece 7 to be detected, the ultrasonic probe assembly 5018 is located in front of the spiral cylindrical shell 5010.

[0039] The distance L from the center of the first rotating shaft 503 on the spiral cylinder housing 5010 corresponds one-to-one with the position where the first rotating shaft 503 is located. The PLC controller 5019 obtains the rotational position information of the first rotating shaft 503 according to the encoder 508. The workpiece 7 to be detected is in a position where it fits against the side surface of the spiral cylinder housing 5010, so that the linear distance between the workpiece 7 to be detected and the center of the first rotating shaft 503 can be obtained, and thus the information about the convexity / concavity of the surface of the workpiece 7 to be detected is acquired.

[0040] The cross-sectional spiral line of the spiral cylinder housing 5010 has different distances from the center of the circle at various positions on the circumference of the spiral cylinder housing 5010. The workpiece 7 to be detected is in a position where it fits against the side surface of the spiral cylinder housing 5010. Each angle of the spiral cylinder housing 5010 corresponds to a unique distance information. The encoder 508 obtains the rotational position information of the first rotating shaft 503, that is, obtains the rotational position information of the spiral cylinder housing 5010. Each rotational position information corresponds to a distance information between the workpiece 7 to be detected and the first rotating shaft 503, that is, reflects the information about the convexity / concavity of the surface of the workpiece 7 to be detected. The PLC controller 5019 controls the telescopic assembly to adjust the position of the ultrasonic probe assembly 5018 according to the above information.

[0041] One control method of the non-destructive testing device in the embodiment is: driving the workpiece 7 to be detected to move uniformly in a straight line through the driving belt assembly 3. The distance between the first rotating shaft 503 and the ultrasonic probe assembly 5018 in the moving direction of the workpiece 7 to be detected is constant. It only needs to be set that the PLC controller 5019 delays the obtained distance information (the delay time T = the distance L between the first rotating shaft 503 and the ultrasonic probe assembly 5018 in the moving direction of the workpiece 7 to be detected / the moving speed V of the driving belt assembly 3 driving the workpiece to be detected) and then controls the telescopic assembly to adjust the position of the ultrasonic probe assembly 5018.

[0042] In the embodiment, the flaw detection assembly 5 further includes an H-shaped support frame 501 arranged horizontally. The support frame 501 has an upper horizontal frame 501a and a lower horizontal frame 501c arranged in parallel. A first vertical frame 501b is fixedly connected between the upper horizontal frame 501a and the lower horizontal frame 501c. A speed sensor 502 is fixedly connected to the first vertical frame 501b of the support frame 501. The speed sensor 502 is communicatively connected with the PLC controller 5019. In another way, the speed sensor 502 can be used to detect the moving speed of the workpiece 7 to be detected in real time, and then delay according to the moving speed of the workpiece 7 to be detected to ensure that the distance between the workpiece 7 to be detected and the ultrasonic probe assembly 5018 is always within a suitable range.

[0043] In the embodiment, as Figure 7 、 Figure 8 and Figure 10As shown, the first rotating shaft 503 is rotatably mounted on the first end of the support frame 501, and a winding roller 504 is fixedly mounted on the first rotating shaft 503, a winding belt 505 is wound around the winding roller 504, and the first end of the winding belt 505 is fixedly connected to the side of the winding roller 504, and a guide rod 506 and a fixing frame 507 parallel to the first rotating shaft 503 are fixedly mounted on the support frame 501, and the second end of the winding belt 505 is fixedly connected to the fixing frame 507 after passing around the guide rod 506, and the winding belt 505 has at least One section is an elastic section 505a. Of course, the winding belt 505 can also be made of elastic material as a whole. The winding direction of the winding belt 505 on the winding roller 504 is opposite to the spiral direction of the spiral drum shell 5010. The encoder 508 is fixedly installed on the support frame 501, and the detection end of the encoder 508 is transmission connected to the first rotating shaft 503 (the encoder 508 uses a shaft-type contact encoder), the telescopic assembly is fixedly installed on the support frame 501, and the ultrasonic probe assembly 5018 is fixedly installed on the telescopic end of the telescopic assembly.

[0044] Described encoder 508 also can select optical non-contact encoder, and it is specifically installed to meet the above-mentioned use requirements.When spiral barrel housing 5010 rotates, it directly drives the first rotating shaft 503 to rotate, and in the first rotating shaft 503 rotation process, winding belt 505 is wound, and winding belt 505 is elastically elongated, and the resilience of winding belt 505 makes the first rotating shaft 503 have the trend of elastic rotation, and promptly spiral barrel housing 5010 has the trend of elastic rotation.When the rotation of described spiral barrel housing 5010 is driven by driving belt assembly 3 to move workpiece 7, workpiece 7 can contact with spiral barrel housing 5010, because the surface of workpiece 7 is uneven, spiral barrel housing 5010 can be squeezed, and the first rotating shaft 503 is active, just can drive spiral barrel housing 5010 and the first rotating shaft 503 to rotate, and its rotation angle can not be very large, generally can not be greater than 90 degree.

[0045] The nondestructive testing device in the embodiment, such as Figure 8 and Figure 10 As shown, a coupling agent spraying assembly 509 is fixedly installed on one side of the spiral barrel shell 5010. The coupling agent spraying assembly 509 is used to spray coupling agent. The coupling agent spraying assembly 509 can select a viscous fluid with a lubricating effect (such as a lipid coupling agent). When the workpiece 7 to be detected is driven to move by the driving belt assembly 3, the coupling agent spraying assembly 509 sprays the coupling agent on the surface of the workpiece to be detected. In the process of contact and sliding between the workpiece 7 to be detected and the spiral barrel shell 5010, the spiral barrel shell 5010 evenly applies the coupling agent on the workpiece 7 to be detected. In order to ensure smooth sliding between the workpiece 7 to be detected and the spiral barrel shell 5010, an ester coupling agent with a lubricating effect can be used.

[0046] like Figure 10As shown, the spray coupling agent assembly 509 includes a coupling agent storage tank 509b, a nozzle member 509a, a pipeline 509c, and a pulse pump 509d. The nozzle member 509a is fixedly installed inside the spiral cylinder housing 5010, and a strip-shaped opening corresponding to the nozzle member 509a is provided on the side of the spiral cylinder housing 5010. The pipeline 509c connects the coupling agent storage tank 509b and the nozzle member 509a, and the pulse pump 509d is installed on the pipeline 509c. When the pulse pump 509d works, the coupling agent inside the coupling agent storage tank 509b is pumped into the pipeline 509c and then sprayed out from the nozzle member 509a. The pulse pump 509d applies pressure in a pulse form, causing the coupling agent to be sprayed out intermittently from the nozzle member 509a.

[0047] In the embodiment, as Figures 7 - 9 shown, the telescopic assembly includes a second vertical frame 5012 and a second rotating shaft 5011. The second vertical frame 5012 is fixedly connected to the support frame 501. A sliding member 5013 is slidably connected to the side of the second vertical frame 5012. A toothed member 5016 is provided on the side of the sliding member 5013. The ultrasonic probe assembly 5018 is fixedly connected to the end of the sliding member 5013. The second rotating shaft 5011 is rotatably installed on the support frame 501. A motor 5014 is fixedly installed on the support frame 501. The output end of the motor 5014 is drivingly connected to the second rotating shaft 5011. A gear member 5015 is fixedly installed on the side of the second rotating shaft 5011. The gear member 5015 meshes with the toothed member 5016. A protective shell 5017 that covers the gear member 5015 and the toothed member 5016 is fixedly installed on the side of the second vertical frame 5012. The controller of the motor 5014 is communicatively connected to the PLC controller 5019.

[0048] The PLC controller 5019 sends an instruction to the controller of the motor 5014 to control the rotation of the motor 5014. The motor 5014 drives the gear member 5015 to rotate. The gear member 5015 meshes with the toothed member 5016, causing the toothed member 5016 to slide linearly, that is, the sliding member 5013 slides linearly, and the end of the sliding member 5013 moves telescopically, controlling the ultrasonic probe assembly 5018 to extend and retract to a suitable position.

[0049] In the embodiment, as Figures 1 - 4As shown, the chassis 1 includes a horizontal frame 102. A vertical plate frame 101 is fixedly connected to the top of the horizontal frame 102. The adjustment assembly 4 is fixedly installed on the vertical plate frame 101. A lower bracket 103 is fixedly connected to the bottom of the horizontal frame 102. A sliding opening is formed between the lower bracket 103 and the horizontal frame 102. The drive belt assembly 3 is slidably installed inside the sliding opening. The drive belt assembly 3 includes a sliding bottom support 301. A first roller 302 and a second roller 303 are respectively rotatably installed at both ends of the top of the sliding bottom support 301. A transmission belt 304 is installed on the first roller 302 and the second roller 303. A first motor 305 is fixedly installed on the sliding bottom support 301. The output end of the first motor 305 is in transmission connection with the rotating shaft of the first roller 302.

[0050] The first motor 305 drives the first roller 302 to rotate, thereby causing the transmission belt 304 installed on the first roller 302 and the second roller 303 to act, and the transmission belt 304 drives the workpiece to be detected to slide (the transmission belt 304 is attached to the side of the workpiece to be detected and drives the workpiece to be detected to move by relying on friction).

[0051] In the embodiment, as shown in Figures 5 and Figure 7 As shown, the adjustment assembly 4 includes a mounting plate 401 and a lateral telescopic member 403. A sliding frame 402 is fixedly connected to one side surface of the mounting plate 401. There are two groups of sliding frames 402, and the two groups of sliding frames 402 are symmetrically arranged. The rear end of the lateral telescopic member 403 is slidably connected to the sliding frame 402. And a screw for fixing the mounting plate 401 is threadedly installed on the mounting plate 401. The telescopic end of the lateral telescopic member 403 is fixedly connected to a mounting frame 404.

[0052] Loosen the screw between the fixed mounting plate 401 and the mounting plate 401, and the position of the lateral telescopic member 403 can be adjusted by sliding up and down. After the position adjustment is verified, then tighten the screw between the fixed mounting plate 401 and the mounting plate 401; relying on the lateral telescopic member 403, the position of the support frame 501 can be adjusted horizontally, thereby adjusting the distance between the flaw detection assembly 5 and the workpiece to be detected 7.

[0053] In the embodiment, as shown in Figure 6As shown, the guiding frame 6 includes a main body support frame 601, a lower guiding seat 602, and a second telescopic member 604. The main body support frame 601 includes a hollow vertical frame 601b. The top end of the hollow vertical frame 601b is fixedly connected with an upper connecting portion 601a, and the bottom end of the hollow vertical frame 601b is fixedly connected with a lower connecting portion 601c. The lower guiding seat 602 is fixedly connected with the lower connecting portion 601c. The top of the lower guiding seat 602 has a guiding groove. The top of the lower guiding seat 602 is fixedly connected with an adjustable retaining member 603 by screws. A sliding hole 603a is formed in the adjustable retaining member 603, and the screw is located inside the sliding hole 603a. The top of the upper connecting portion 601a is fixedly installed with a second telescopic member 604. The bottom end of the second telescopic member 604 penetrates through the upper connecting portion 601a, and the bottom end of the second telescopic member 604 is fixedly connected with an upper guiding seat 605.

[0054] The user slides and adjusts the position of the adjustable retaining member 603 so that the width of the available guiding groove inside the lower guiding seat 602 corresponds to the thickness of the workpiece 7 to be detected. After adjustment to the appropriate position, the adjustable retaining member 603 is fixed to the lower guiding seat 602. The bottom of the workpiece 7 to be detected is clamped into the guiding groove of the lower guiding seat 602, and the top of the workpiece 7 to be detected is clamped into the bottom opening of the upper guiding seat 605.

[0055] There are three groups of second telescopic members 604. Each group has two second telescopic members 604 (the bottom guiding openings of the guiding seats 605 corresponding to the second telescopic members 604 in the same group are of the same size). The bottom guiding openings of the guiding seats 605 corresponding to the three groups of second telescopic members 604 are of different sizes and are selected for use according to different workpieces 7 to be detected.

[0056] In the embodiment, the ultrasonic probe assembly 5018 is a long block formed by arranging multiple ultrasonic probes side by side, so as to be able to perform a single comprehensive non-destructive test on a wider workpiece 7 to be detected.

[0057] The specific detection process of the non-destructive testing device in the embodiment is as follows:

[0058] S1. Install the workpiece 7 to be detected inside the guiding frame 6, and control the first telescopic member to adjust the position of the driving belt assembly 3 so that the driving belt assembly 3 can drive the workpiece 7 to be detected to slide along the direction of the guiding frame 6.

[0059] S2. Control the adjustment assembly 4 to adjust the position of the flaw detection assembly 5 so that the spiral cylindrical shell 5010 of the flaw detection assembly 5 fits on the surface of the workpiece 7 to be detected.

[0060] S3. Turn on the drive belt assembly 5 to connect the power supplies of the PLC controller 5019, the coupling agent spraying assembly 509, the encoder 508, the telescopic assembly, and the ultrasonic probe assembly 5018, and perform on-line flaw detection on the workpiece 7 to be detected. Specifically, during the movement of the workpiece 7 to be detected, the coupling agent spraying assembly 509 sprays the coupling agent onto the surface of the workpiece 7 to be detected. The spiral cylinder housing 5010 slides on the surface of the workpiece 7 to be detected, so that the coupling agent is evenly applied to the workpiece 7 to be detected. Moreover, the spiral cylinder housing 5010 rotates following the change of the surface of the workpiece 7 to be detected. When the spiral cylinder housing 7 rotates, it drives the first rotating shaft 503 to rotate. The encoder 508 obtains the rotation information of the first rotating shaft 503, and the encoder 508 transmits the obtained rotation information of the first rotating shaft 503 to the PLC controller 5019. The PLC controller 5019 analyzes the convex / concave information of the surface of the workpiece 7 to be detected according to the rotation information obtained by the encoder 508, and controls the telescopic assembly to adjust the position of the ultrasonic probe assembly 5018, so that the ultrasonic probe assembly 5018 maintains a predetermined distance from the surface of the workpiece 7 to be detected.

[0061] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An ultrasonic nondestructive testing device, characterized in that: The nondestructive testing device comprises a base frame (1), a driving belt assembly (3) and a flaw detection assembly (5); a guide frame (6) fixedly mounted on the base frame (1), the guide frame (6) being used to guide a workpiece (7) to be tested to slide linearly; the driving belt assembly (3) is slidably mounted on the base frame (1), and a first telescopic member (2) is fixedly connected to the base frame (1), the telescopic end of the first telescopic member (2) is fixedly mounted on the driving belt assembly (3), and the driving belt assembly (3) is used to drive the workpiece (7) to slide along the direction of the guide frame (6); The flaw detection component (5) is fixedly connected to the base frame (1) through the adjustment component (4), and the flaw detection component (5) is located on the moving route of the workpiece (7); the adjustment component (4) comprises a mounting plate (401) and a transverse telescopic member (403); a side surface of the mounting plate (401) is fixedly connected to a sliding frame (402), and the sliding frame (402) is provided with two groups, and the two groups of sliding frames (402) are symmetrically arranged; the rear end of the transverse telescopic member (403) is slidably connected to the sliding frame (402), and a screw for fixing the mounting plate (401) and the mounting plate (401) is threadedly installed on the mounting plate (401), and the telescopic end of the transverse telescopic member (403) is fixedly connected to the mounting frame (404); The flaw detection assembly (5) includes a control ultrasonic probe assembly (5018), and the control ultrasonic probe assembly (5018) is installed on the mounting frame (404) through a telescopic assembly. The telescopic assembly includes a support frame (501), a second vertical frame (5012) and a second rotating shaft (5011). The support frame (501) is fixed on the mounting frame (404), and the second vertical frame (5012) is fixedly connected to the support frame (501). The side of the second vertical frame (5012) is slidably connected to a sliding member (5013), and the sliding member ( A gear condition (5016) is arranged on the side of the sliding member (5013), and the ultrasonic probe assembly (5018) is fixedly connected to the end of the sliding member (5013); the second rotating shaft (5011) is rotatably mounted on the support frame (501), a motor (5014) is fixedly mounted on the support frame (501), the output end of the motor (5014) is transmission-connected to the second rotating shaft (5011), and a gear member (5015) is fixedly mounted on the side of the second rotating shaft (5011), and the gear member (5015) is meshed with the gear condition (5016).

2. The ultrasonic nondestructive testing device according to claim 1, characterized in that: The support frame (501) is a transversely arranged H-shaped frame, the second rotating shaft (5011) is fixed to one end of the transversely arranged H-shaped frame, and a workpiece concave-convex surface sensing device is arranged at the other end of the transversely arranged H-shaped frame; the workpiece concave-convex surface sensing device comprises a first rotating shaft (503) that can rotate elastically, an encoder (508) for obtaining rotation information of the first rotating shaft (503), an ultrasonic probe assembly (5018), a telescopic assembly for controlling the ultrasonic probe assembly (5018) to maintain a gap with the workpiece (7), and a PLC controller (5019); a spiral barrel shell (5010) with a spiral cross-section is fixedly installed on the first rotating shaft (503); Along the moving direction of the workpiece (7), the ultrasonic probe assembly (5018) is located in front of the spiral barrel shell (5010); when the workpiece (7) moves to a position corresponding to the spiral barrel shell (5010), the outer wall of the spiral barrel shell (5010) contacts the surface of the workpiece (7); the signal output end of the encoder (508) is connected to the signal input end of the PLC controller (5019), and the signal output end of the PLC controller (5019) is connected to the control end of the motor (5014).

3. An ultrasonic nondestructive testing device according to claim 1 or 2, characterized in that: The base frame (1) comprises a horizontal frame (102), the top of the horizontal frame (102) is fixedly connected to a vertical frame (101), and the adjustment assembly (4) is fixedly installed with the vertical frame (101); the bottom of the horizontal frame (102) is fixedly connected to a lower bracket (103), a sliding opening is formed between the lower bracket (103) and the horizontal frame (102), and the driving belt assembly (3) is slidably installed on the inner side of the sliding opening.

4. An ultrasonic nondestructive testing device according to claim 1 or 2, characterized in that: The driving belt assembly (3) comprises a sliding base (301), a first roller (302) and a second roller (303) are rotatably mounted on the top of the sliding base (301) and at both ends of the sliding base (301), a transmission belt (304) is mounted on the first roller (302) and the second roller (303), a first motor (305) is fixedly mounted on the sliding base (301), and an output end of the first motor (305) is drivingly connected to a rotating shaft of the first roller (302).

5. An ultrasonic nondestructive testing device according to claim 1 or 2, characterized in that: The guide frame (6) comprises a main support frame (601), a lower guide seat (602) and a second telescopic member (604); the main support frame (601) comprises a hollow stand (601b); the top end of the hollow stand (601b) is fixedly connected to an upper connecting portion (601a); the bottom end of the hollow stand (601b) is fixedly connected to a lower connecting portion (601c); the lower guide seat (602) is fixedly connected to the lower connecting portion (601c); The top of the seat (602) is provided with a guide groove, the top of the lower guide seat (602) is fixedly connected to an adjustable buckle (603) by means of screws, and a sliding hole (603a) is provided on the adjustable buckle (603); a second telescopic member (604) is fixedly installed on the top of the upper connecting portion (601a), the bottom end of the second telescopic member (604) passes through the upper connecting portion (601a), and the bottom end of the second telescopic member (604) is fixedly connected to the upper guide seat (605).

6. An ultrasonic nondestructive testing device according to claim 1 or 2, characterized in that: A protective shell (5017) is fixedly mounted on the side of the second vertical frame (5012) to cover the gear member (5015) and the gear condition (5016); the controller of the motor (5014) is communicatively connected to the PLC controller (5019).

7. An ultrasonic nondestructive testing device according to claim 1 or 2, characterized in that: The ultrasonic probe assembly (5018) is a long block composed of a plurality of ultrasonic probes arranged side by side. The long block ultrasonic probe assembly (5018) is vertically mounted at the front end of the sliding member (5013), with its sensing surface facing the workpiece (7) to be detected.

8. The ultrasonic nondestructive testing device according to claim 2, characterized in that: A coupling agent spray assembly (509) is fixedly mounted on one side of the spiral cartridge housing (5010). The coupling agent spray assembly (509) comprises a coupling agent storage tank (509b), a nozzle member (509a), a pipeline (509c) and a pulse pump (509d). The nozzle member (509a) is fixedly mounted on the inner side of the spiral cartridge housing (5010), and a strip-shaped opening corresponding to the nozzle member (509a) is opened on the side of the spiral cartridge housing (5010). The pipeline (509c) connects the coupling agent storage tank (509b) and the nozzle member (509a), and the pulse pump (509d) is mounted on the pipeline (509c).

9. The ultrasonic nondestructive testing device according to claim 2, characterized in that: A winding roller (504) is fixedly mounted on the first rotating shaft (503), a winding belt (505) is wound on the winding roller (504), a first end of the winding belt (505) is fixedly connected to the side of the winding roller (504), a guide rod (506) and a fixing frame (507) parallel to the first rotating shaft (503) are fixedly mounted on the support frame (501), a second end of the winding belt (505) is fixedly connected to the fixing frame (507) after passing around the guide rod (506), and the winding belt (505) is fixedly connected to the fixing frame (507). The winding belt (505) has at least one elastic section (505a), and the winding direction of the winding belt (505) on the winding roller (504) is opposite to the spiral direction of the spiral drum shell (5010). The encoder (508) is fixedly installed on the support frame (501), and the detection end of the encoder (508) is transmission-connected to the first rotating shaft (503). The telescopic component is fixedly installed on the support frame (501), and the ultrasonic probe component (5018) is fixedly installed on the telescopic end of the telescopic component.

10. The ultrasonic nondestructive testing device according to claim 2, characterized in that: A speed sensor (502) is fixedly connected to the first vertical frame (501b) in the middle of the horizontal H-shaped support frame (501), and the speed sensor (502) is communicatively connected to the PLC controller (5019).

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