A flaw detector teaching aid

Abstract

The invention discloses a flaw detector teaching aid, comprising a shell, a containing cavity is arranged in the shell, a placing plate for dividing the containing cavity into an upper cavity and a lower cavity is arranged in the containing cavity, a test block is placed on the placing plate, an imaging plate is arranged in the lower cavity, a ring-shaped connecting piece is arranged below the imaging plate, an upper bell mouth is arranged at the head of the ring-shaped connecting piece, a lower bell mouth is arranged at the tail, the top surface of the upper bell mouth is connected with the lower end surface of the imaging plate, a camera is arranged at the opening of the lower bell mouth, an adjusting device for adjusting the movement of a light source to illuminate the test block is arranged in the upper cavity, the adjusting device comprises a longitudinal adjusting mechanism and a lateral adjusting mechanism, the light source is an LED lamp, the light source is an LED lamp, the invention uses an LED lamp light source to replace a high-voltage package in the prior art, and utilizes the visible light of the LED lamp light source to simulate ray flaw detection, the LED lamp light source can greatly reduce ionizing radiation and does not harm human health.

Description

[Technical field]

[0001] The invention relates to the field of flaw detection, in particular to a flaw detector teaching aid. [Background technology]

[0002] The existing X-ray flaw detector high-voltage package measurement operating frequency is generally 25 kHz to 40 kHz, and the secondary output voltage of the high-voltage package is as high as 50 kilovolts. It will generate high-frequency ionizing radiation during flaw detection measurement; if the operator lacks experience, it may endanger the learning and health of the user, and may even endanger life. Therefore, we urgently need to develop a flaw detector that will not endanger personal safety. [Summary of the invention]

[0003] In order to solve the above problems, the present invention provides a flaw detector teaching aid which uses LED lamps to replace high-voltage packages. The flaw detector uses visible light to simulate ray flaw detection and will not harm human health.

[0004] To achieve the above purpose, the present invention provides the following technical solutions:

[0005] A flaw detector teaching aid comprises a shell, a accommodating cavity is arranged in the shell, a placement plate made of transparent material is arranged in the accommodating cavity and dividing the accommodating cavity into an upper cavity and a lower cavity, a test block is placed on the placement plate, an imaging plate parallel to the placement plate is arranged in the lower cavity, a trumpet-shaped annular connector with a large head and a small tail is arranged below the imaging plate, an upper trumpet mouth is arranged at the head of the annular connector, and a lower trumpet mouth is arranged at the tail, the top surface of the upper trumpet mouth is connected to the lower end surface of the imaging plate, a camera is arranged at the opening of the lower trumpet mouth, an adjusting device for adjusting the movement of a light source to illuminate the test block is arranged in the upper cavity, the adjusting device comprises a longitudinal adjusting mechanism for adjusting the longitudinal movement of the light source and a transverse adjusting mechanism for adjusting the transverse movement of the light source, and the light source is an LED lamp.

[0006] As a preferred embodiment, it is further defined as: the longitudinal adjustment mechanism includes a crossbeam fixed in the upper cavity, two electric telescopic rods are separated and located below the crossbeam, and the free ends of the two electric telescopic rods are fixedly connected to the transverse adjustment mechanism.

[0007] As a preferred embodiment, it is further defined as: the lateral adjustment mechanism includes a fixing plate, the two ends of the fixing plate are respectively fixedly connected with the free ends of the two electric telescopic rods in a one-to-one correspondence, a screw rod and two guide rods respectively located on both sides of the screw rod are provided below the fixing plate, the screw rod is parallel to the two guide rods, a first motor and a bearing seat are respectively fixedly provided at the two ends of the fixing plate in the length direction, one end of the screw rod is connected to the first motor, and the other end of the screw rod is connected to the bearing seat, and guide rod fixing seats are also respectively fixedly provided at the two ends of the fixing plate in the length direction, one end of the guide rod is connected to one The guide rod is connected to a guide rod fixing seat, and the other end of the guide rod is connected to another guide rod fixing seat. The lateral adjustment structure also includes a lateral moving block, the middle part of the lateral moving block is movably connected to the screw rod, and the two sides of the lateral moving block are movably connected to the two guide rods one by one. A light source fixing seat is provided below the lateral moving block, and the light source fixing seat has a first connecting column and a second connecting column. The upper end surface of the first connecting column is fixedly connected to the lower end surface of the lateral moving block, the lower end surface of the first connecting column is fixedly connected to the upper end surface of the second connecting column, and the lower part of the second connecting column is hinged to the light source ball.

[0008] As a preferred embodiment, it is further defined as: a flexible lampshade is connected to the outer peripheral surface of the first connecting column, and the first connecting column is provided with a folding and unfolding mechanism for controlling the flexible lampshade to be folded or unfolded, the folding and unfolding mechanism includes a second motor arranged inside the first connecting column, and the output end of the second motor is connected to a bevel gear, and the lower part of the first connecting column is provided with a plurality of notches evenly distributed around the axis of the first connecting column, and lampshade support blocks hinged to the first connecting column are provided at the plurality of notches, and the lampshade support block is provided with a bevel rack meshing with the bevel gear, and the lampshade support block fits tightly with the flexible lampshade.

[0009] As a preferred embodiment, it is further defined as: the test block is divided into two layers, the outer layer of the test block is the outer layer body, the inner layer of the test block is the inner layer body, the outer layer body is a transparent material, and the inner layer body is an opaque or translucent material.

[0010] As a preferred embodiment, it is further defined as: also including a control box, the control box is provided with a display screen, the control box has a built-in controller electrically connected to the display screen, the controller is electrically connected to a camera, the camera converts the image formed by the imaging board into an electrical signal and outputs it to the controller, the controller processes the electrical signal and converts it into a digital image signal for display on the display screen.

[0011] As a preferred embodiment, it is further defined as: the controller is also electrically connected to an operation panel, the operation panel is provided with a longitudinal operation button, a transverse operation button and a retraction and extension operation button, the controller is electrically connected to the electric telescopic rod, the first motor and the second motor respectively, the longitudinal operation button controls the extension and retraction of the electric telescopic rod through the controller, the transverse operation button controls the rotation of the first motor through the controller, and the retraction and extension operation button controls the rotation of the second motor through the controller.

[0012] The beneficial effects created by the present invention are: the light source is an LED lamp, and the LED lamp light source is used to replace the high-voltage package in the prior art. The visible light of the LED lamp light source is used to simulate ray flaw detection. The LED lamp light source can greatly reduce ionizing radiation and does not harm human health.

Brief Description of the Drawings

[0013] Figure 1 It is a structural diagram of the invention;

[0014] Figure 2 It is a cross-sectional view of the invention;

[0015] Figure 3 yes Figure 2 A magnified image of point A;

[0016] Figure 4 It is the explosion diagram created by the present invention;

[0017] Figure 5 It is an exploded view of the regulating device;

[0018] Figure 6 is a structural diagram of the regulating device;

[0019] Figure 7 yes Figure 6 The enlarged view of point B;

[0020] Figure 8 It is a principle block diagram created by the present invention. [Specific implementation method]

[0021] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0022] As attached Figure 1-8As shown, a flaw detector teaching aid includes a shell 1, wherein a housing 1 is provided with a housing chamber 11, wherein a placement plate 14 is provided in the housing chamber 11 for dividing the housing chamber 11 into an upper chamber 12 and a lower chamber 13, wherein a test block 90 is placed on the placement plate 14, and the placement plate 14 can be made of a transparent material such as glass to allow light to pass through. An imaging plate 15 is provided in the lower chamber 13 and is parallel to the placement plate 14, wherein a trumpet-shaped annular connector 16 with a large head and a small tail is provided below the imaging plate 15, wherein an upper trumpet mouth 17 is provided at the head of the annular connector 16, and a lower trumpet mouth 18 is provided at the tail, wherein the top surface of the upper trumpet mouth 17 is connected to the lower end surface of the imaging plate 15, and a camera 19 is provided at the opening of the lower trumpet mouth 18, wherein an adjustment device for adjusting the movement of a light source 21 to illuminate the test block 90 is provided in the upper chamber 12, wherein the adjustment device includes a longitudinal adjustment mechanism for adjusting the longitudinal movement of the light source 21 and a transverse adjustment mechanism for adjusting the transverse movement of the light source 21. In the present invention, the material of the placement plate 14 is preferably transparent glass, and the material of the imaging plate 15 is preferably frosted glass. The light source 21 is an LED lamp, and the LED lamp light source is used to replace the high-voltage package in the prior art. The visible light of the LED lamp light source is used to simulate X-ray flaw detection. The LED lamp light source can greatly reduce ionizing radiation and does not harm human health. At the same time, the present invention also has the functions of adjusting the position of the light source in the longitudinal direction and the lateral direction, which can meet our multi-directional detection of the test block 90 and enable us to perform all-round flaw detection on the test block 90.

[0023] In this embodiment, the longitudinal adjustment mechanism includes a cross beam 31 fixed in the upper cavity 12, and two electric telescopic rods 32 are separated and located below the cross beam 31. The free ends of the two electric telescopic rods 32 are fixedly connected to the transverse adjustment mechanism. The invention can control the two electric telescopic rods 32 to rise and fall synchronously, which facilitates the adjustment of the longitudinal direction of the light source 21. The structure is simple and easy to control.

[0024] In this embodiment, the lateral adjustment mechanism includes a fixing plate 41, and the two ends of the fixing plate 41 are fixedly connected with the free ends of the two electric telescopic rods 32 in a one-to-one correspondence. A screw rod 42 and two guide rods 43 are respectively located on both sides of the screw rod 42 under the fixing plate 41. The screw rod 42 is parallel to the two guide rods 43. A first motor 44 and a bearing seat 45 are respectively fixedly provided at the two ends of the fixing plate 41 in the length direction. One end of the screw rod 42 is connected to the first motor 44, and the other end of the screw rod 42 is connected to the bearing seat 45. Guide rod fixing seats 46 are also respectively fixedly provided at the two ends of the fixing plate 41 in the length direction. One end of the guide rod 43 is connected to a guide rod fixing seat 46. The guide rod The other end of 43 is connected to another guide rod fixing seat 46, and the lateral adjustment structure also includes a lateral moving block 47, the middle part of the lateral moving block 47 is movably connected to the screw rod 42, and the two sides of the lateral moving block 47 are movably connected to the two guide rods 43 respectively, and a light source fixing seat 51 is provided below the lateral moving block 47, and the light source fixing seat 51 has a first connecting column 52 and a second connecting column 53, the upper end surface of the first connecting column 52 is fixedly connected to the lower end surface of the lateral moving block 47, and the lower end surface of the first connecting column 52 is fixedly connected to the upper end surface of the second connecting column 53, and the lower part of the second connecting column 53 is ball-hinged with the light source 21, which is convenient for control and realizing the control of the lateral direction of the light source.

[0025] In this embodiment, a flexible lampshade 54 is connected to the outer circumferential surface of the first connecting column 52, and a folding and unfolding mechanism for controlling the flexible lampshade 54 to be folded or unfolded is provided on the first connecting column 52, and the folding and unfolding mechanism includes a second motor 61 arranged inside the first connecting column 52, and the output end of the second motor 61 is connected to a bevel gear 62. The lower part of the first connecting column 52 is provided with a plurality of notches 63 evenly distributed around the axis of the first connecting column 52, and lampshade support blocks 64 hinged to the first connecting column 52 are provided at the plurality of notches 63, and the lampshade support blocks 64 are provided with a bevel rack 65 meshing with the bevel gear 62, and the lampshade support block 64 fits tightly with the flexible lampshade 54, and the light source 21 is an LED lamp.

[0026] The flaw detector teaching aid of this embodiment may also be provided with an angle adjustment mechanism, which is provided below the first connecting column 52, and includes a third motor, a first connecting rod and a second connecting rod, one end of the first connecting rod is connected to the output end of the third motor, and the other end of the first connecting rod is hinged to one end of the second connecting rod, and the light source 21 has a light source body 212 and a base 211 hinged to the lower ball of the second connecting column 53, and the other end of the second connecting rod is hinged to the base 211. The irradiation angle of the light source 21 can be adjusted by the angle adjustment mechanism.

[0027] The test block 90 is divided into two layers, the outer layer of the test block 90 is the outer layer body 91, and the inner layer of the test block 90 is the inner layer body 92. The outer layer body 91 is a transparent material, and the inner layer body 92 is an opaque or translucent material. The outer layer body is made transparent so that the test block has good light transmittance, which is convenient for the LED light to illuminate the test block and better image it on the imaging board; according to different measurement requirements, we can also make the inner layer body 92 opaque or translucent, and there will be shadows in the imaging, and the inner layer body 92 can simulate the defects or cracks on the object. Furthermore, the inner layer body 92 can be made into a simulation body of a specific shape, such as a bone, a screw, etc. At this time, some gaps and gaps can be reserved on the inner layer body 92 to simulate the defects or cracks of a certain component inside the product, which can enhance the realism of the imaging and facilitate our observation and discovery of flaw detection.

[0028] There are two working modes in the entire flaw detector:

[0029] The first mode is the full illumination mode, which is mainly used for testing test blocks with a smaller volume. The second motor created by the present invention controls the flexible lampshade to open so that the LED light can irradiate naturally. Since the test block is small in volume, the imaging is of the entire test block.

[0030] The second mode is the local illumination mode, which is mainly used for testing test blocks with larger volumes. The second motor created by the present invention controls the flexible lampshade to retract, so that the flexible lampshade gathers the light into a beam, so that the larger test block can be partially imaged. This mode can also cooperate with the above-mentioned longitudinal adjustment mechanism and transverse adjustment mechanism. The position of the LED lamp can be adjusted through these adjustment devices to achieve local imaging at a specific position of the test block.

[0031] In order to facilitate us in adjusting and controlling through external devices, the invention also includes a control box 8, on which a display screen 81 is provided, and a controller 82 electrically connected to the display screen 81 is built in the control box 8, and the controller 82 is electrically connected to a camera 19, and the camera 19 converts the image formed by the imaging board 15 into an electrical signal and outputs it to the controller 82, and the controller 82 processes the electrical signal and converts it into a digital image signal for display on the display screen 81, and the controller 82 is also electrically connected to an operation panel 83, and the operation panel 83 is provided with a longitudinal operation button 84, a transverse operation button 85 and a retracting and extending operation button 87, and the controller 82 is electrically connected to the electric telescopic rod 32, the first motor 44 and the second motor 61 respectively, and the longitudinal operation button 84 controls the electric telescopic rod 32 to retract and retract through the controller 82, and the transverse operation button 85 controls the first motor 44 to rotate through the controller 82, and the retracting and extending operation button 87 controls the second motor 61 to rotate through the controller 82.

Claims

1. A flaw detector teaching aid, comprising a housing (1), wherein a receiving chamber (11) is provided in the housing (1), characterized in that: A placement plate (14) made of a transparent material is provided in the accommodating chamber (11) and divides the accommodating chamber (11) into an upper chamber (12) and a lower chamber (13); a test block (90) is placed on the placement plate (14); an imaging plate (15) parallel to the placement plate (14) is provided in the lower chamber (13); a trumpet-shaped annular connector (16) having a large head and a small tail is provided below the imaging plate (15); the annular connector (16) has an upper trumpet mouth (17) at its head and a lower trumpet mouth (17) at its tail. A lower bell mouth (18) is provided, the top end surface of the upper bell mouth (17) is connected to the lower end surface of the imaging plate (15), a camera (19) is provided at the opening of the lower bell mouth (18), an adjustment device for adjusting the movement of the light source (21) to illuminate the test block (90) is provided in the upper cavity (12), the adjustment device comprises a longitudinal adjustment mechanism for adjusting the longitudinal movement of the light source (21) and a transverse adjustment mechanism for adjusting the transverse movement of the light source (21), and the light source (21) is an LED lamp; The lateral adjustment mechanism comprises a fixing plate (41), the two ends of the fixing plate (41) are respectively fixedly connected with the free ends of the two electric telescopic rods (32) in a one-to-one correspondence, a screw rod (42) and two guide rods (43) respectively located on both sides of the screw rod (42) are provided below the fixing plate (41), the screw rod (42) is parallel to the two guide rods (43), a first motor (44) and a bearing seat (45) are respectively fixedly provided at the two ends in the length direction of the fixing plate (41), one end of the screw rod (42) is connected to the first motor (44), and the other end of the screw rod (42) is connected to the bearing seat (45), and guide rod fixing seats (46) are also respectively fixedly provided at the two ends in the length direction of the fixing plate (41), one end of the guide rod (43) is connected to a guide rod fixing seat (46) The guide rod (43) is connected to the guide rod fixing seat (46), the other end of the guide rod (43) is connected to the other guide rod fixing seat (46), the lateral adjustment structure also includes a lateral moving block (47), the middle part of the lateral moving block (47) is movably connected to the screw rod (42), the two sides of the lateral moving block (47) are movably connected to the two guide rods (43) in a one-to-one correspondence, a light source fixing seat (51) is provided below the lateral moving block (47), the light source fixing seat (51) has a first connecting column (52) and a second connecting column (53), the upper end surface of the first connecting column (52) is fixedly connected to the lower end surface of the lateral moving block (47), the lower end surface of the first connecting column (52) is fixedly connected to the upper end surface of the second connecting column (53), and the lower part of the second connecting column (53) is ball-hinged with the light source (21); A flexible lampshade (54) is connected to the outer peripheral surface of the first connecting column (52), and a folding and unfolding mechanism for controlling the flexible lampshade (54) to be folded or unfolded is provided on the first connecting column (52), and the folding and unfolding mechanism includes a second motor (61) arranged inside the first connecting column (52), and the output end of the second motor (61) is connected to a bevel gear (62), and a plurality of notches (63) evenly distributed around the axis of the first connecting column (52) are provided at the lower part of the first connecting column (52), and a lampshade support block (64) hinged to the first connecting column (52) is provided at each of the plurality of notches (63), and the lampshade support block (64) is provided with a bevel rack (65) meshing with the bevel gear (62), and the lampshade support block (64) is tightly fitted with the flexible lampshade (54); The test block (90) is divided into two layers, an outer layer and an inner layer. The outer layer of the test block (90) is an outer layer body (91), and the inner layer of the test block (90) is an inner layer body (92). The outer layer body (91) is a transparent material, and the inner layer body (92) is an opaque or translucent material. The device further comprises a control box (8), wherein the control box (8) is provided with a display screen (81), wherein the control box (8) is internally provided with a controller (82) electrically connected to the display screen (81), wherein the controller (82) is electrically connected to a camera (19), wherein the camera (19) converts an image formed by an imaging plate (15) into an electrical signal and outputs the signal to the controller (82), wherein the controller (82) processes the electrical signal and converts the signal into a digital image signal for display on the display screen (81); The controller (82) is also electrically connected to an operation panel (83), and the operation panel (83) is provided with a longitudinal operation button (84), a transverse operation button (85), and a retracting and extending operation button (87). The controller (82) is electrically connected to the electric telescopic rod (32), the first motor (44), and the second motor (61) respectively. The longitudinal operation button (84) controls the electric telescopic rod (32) to retract and extend through the controller (82), the transverse operation button (85) controls the first motor (44) to rotate through the controller (82), and the retracting and extending operation button (87) controls the second motor (61) to rotate through the controller (82).

2. A flaw detector teaching aid according to claim 1, characterized in that: The longitudinal adjustment mechanism comprises a crossbeam (31) fixed in the upper cavity (12), two electric telescopic rods (32) are located below the crossbeam (31), and the free ends of the two electric telescopic rods (32) are fixedly connected to the transverse adjustment mechanism.

Images