A flaw detection device for large steel castings

Abstract

The invention discloses a large-scale flaw detection device for steel castings, comprising a workbench, wherein a second movable frame is symmetrically and slidably connected inside the workbench, a first movable frame is fixedly connected on the top of the second movable frame, a support rod is slidably connected inside the first movable frame, a placement plate is fixedly connected on the top of the support rod, and a clamping plate is fixedly connected on the top of the placement plate. The beneficial effects achieved by the invention are as follows: under the action of a transmission gear and a fixed gear ring, the fixed frame is driven to rotate through a connecting block, thereby driving a flaw detection head to rotate around the steel casting, ensuring the stability of scanning imaging, facilitating more detailed and uniform imaging, and making it easier to determine the condition of the steel casting; the second screw rod drives the placement plate to move through the support rod, thereby facilitating the adjustment of the position of the clamping plate according to the height of the steel casting, and rotating the first bidirectional screw rod drives the second movable frame to move through the second movable block, thereby quickly clamping the steel casting, making it easier to determine the condition of the steel casting.

Description

Technical Field

[0001] The invention relates to the technical field of steel casting defect processing, in particular to a large steel casting flaw detection device. Background Art

[0002] During the production process, steel castings often have various casting defects. Common defects include: sand holes, sand sticking, pores, keyholes, shrinkage, sand inclusions, scars, cracks, etc. Some of these defects will appear inside the steel castings, affecting the structural performance and product quality of the steel castings. Therefore, before steel castings leave the factory, they generally need to be subjected to NDT nondestructive testing to find out the defect locations and deal with them. Common NDT flaw detection includes ultrasonic flaw detection, radiographic flaw detection, magnetic particle flaw detection, penetrant flaw detection and other forms.

[0003] At present, some existing large steel casting flaw detection is mainly performed by operators using handheld CT scanners to scan the surface of large steel castings point by point through ultrasonic flaw detection equipment. Due to the poor stability of handheld operation and the inconvenience of side-by-side operation of steel castings, operators can only detect the surface of one side of the workpiece. Therefore, a large steel casting flaw detection device is provided to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a large steel casting flaw detection device to solve the problem that some large steel casting flaw detection mentioned in the above background technology is mainly performed by operators holding a CT scanner to scan the surface of the large steel casting point by point through ultrasonic flaw detection equipment. Due to the poor stability of handheld operation and the inconvenience of side-by-side inspection of the steel casting, the operator can only inspect the surface of one side of the workpiece.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] The present invention provides a large-scale steel casting flaw detection device, comprising a workbench, wherein the workbench is symmetrically slidably connected with a second moving frame inside, the second moving frame is fixedly connected with a first moving frame on the top, the first moving frame is slidably connected with a support rod inside, the support rod is fixedly connected with a placement plate on the top, the placement plate is fixedly connected with a clamping plate on the top, the workbench is fixedly connected with a vertical plate on the top, the vertical plate is fixedly connected with a top plate on the top, the top plate is slidably connected with a first moving block inside, the first moving block is fixedly connected with a moving plate on the bottom, the moving plate is rotatably connected with a fixed gear ring inside, and the The fixed gear ring is fixedly connected with a connecting block inside, the bottom of the connecting block is fixedly connected with a first fixed block, the inside of the first fixed block is slidably connected with a third moving frame, the outside of the third moving frame is fixedly connected with a connecting plate, the bottom of the connecting plate is fixedly connected with a second fixed block, the bottom of the second fixed block is fixedly connected with a fixed frame, the inside of the fixed frame is symmetrically slidably connected with the third moving block, the bottom of the third moving block is rotatably connected to a second rotating rod, the bottom of the second rotating rod is rotatably connected to a moving frame, the bottom of the moving frame is slidably connected to a push plate, and the bottom of the push plate is fixedly connected to a flaw detection machine head.

[0007] The staff starts the second motor to drive the first rotating rod to rotate, the first rotating rod drives the first limiting block to rotate through the first limiting groove, and the first limiting block drives the rotating cylinder to rotate. The rotating cylinder drives the limiting ring to rotate inside the second limiting groove while rotating, which is convenient for limiting the rotating cylinder to prevent the rotating cylinder from deviating during the rotation process. The rotating cylinder drives the second bevel gear to rotate, and the second bevel gear and the first bevel gear drive the second screw rod to rotate under the action of the second bevel gear and the first bevel gear. The second screw rod drives the placement plate to move up and down through the support rod, which is convenient for adjusting the position of the splint according to the height of the cast steel part, and the cast steel part is placed between the two splints through the moving plate. Start the first motor to drive the first bidirectional screw rod to rotate, and the first bidirectional screw rod drives the second moving frame to move through the second moving block, thereby driving the splint to move relatively, which is convenient for quickly clamping the cast steel part, start the fourth motor to drive the first screw rod to rotate, and the first screw rod drives the moving plate to the specified position through the first moving block, start the fifth motor to drive the second bidirectional screw rod to rotate, and the second bidirectional screw rod drives the The second rotating rod moves, and the second rotating rod pushes the push plate to move through the moving frame, and the push plate pushes the flaw detection head to move, so that the flaw detection head is close to the surface of the steel casting for flaw detection scanning, so as to ensure the stability of the scanning imaging, facilitate more detailed and uniform imaging, and make it easier to determine the condition of the steel casting. The third motor is started to drive the rotating shaft to rotate, and the rotating shaft drives the transmission gear to rotate. Under the action of the transmission gear and the fixed gear ring, the first fixed block is driven to rotate through the connecting block, and the first fixed block drives the flaw detection head to rotate through the fixed frame, so that the flaw detection head performs a circumferential motion around the steel casting to execute the scanning action instruction. While the flaw detection head performs a circumferential motion, the first fixed block drives the third rotating rod to rotate, and the third rotating rod drives the third bevel gear to rotate. Under the action of the third bevel gear and the bevel gear ring, the turntable is driven to rotate inside the first fixed block, and the turntable drives the slider to slide inside the slide slot, thereby driving the third moving frame to reciprocate, and the third moving frame drives the connecting plate to move, and the connecting plate drives the fixed frame to reciprocate through the second fixed block, thereby increasing the scanning area, and making it easier to determine the condition of the steel casting.

[0008] As a preferred solution of the present invention, a first motor is fixedly connected to the inside of the workbench, the output end of the first motor is fixedly connected to a first bidirectional screw rod through a coupling, the outer side of the first bidirectional screw rod is symmetrically threadedly connected to a second moving block, and the second moving block is fixedly connected to a second moving frame.

[0009] The first motor is started to drive the first bidirectional screw to rotate, and the first bidirectional screw drives the second moving frame to move through the second moving block, thereby driving the clamping plate to move relatively, so as to facilitate the rapid clamping of the cast steel part.

[0010] As a preferred solution of the present invention, the interior of the second movable frame is rotatably connected to a rotating cylinder, the outer side of the rotating cylinder is fixedly connected to a second bevel gear, the interior of the second movable frame and above the rotating cylinder is rotatably connected to a second screw rod, the second screw rod is threadedly connected to the support rod, the bottom of the second screw rod is fixedly connected to the first bevel gear, the first bevel gear is meshingly connected to the second bevel gear, the interior of the second movable frame is symmetrically provided with second limit grooves, the interior of the second limit groove is rotatably connected to a limit ring, and the limit ring is fixedly connected to the rotating cylinder.

[0011] The rotating cylinder drives the second bevel gear to rotate, and under the action of the second bevel gear and the first bevel gear, drives the second screw to rotate. The second screw drives the placement plate to move up and down through the support rod, so as to adjust the position of the clamping plate according to the height of the steel casting.

[0012] As a preferred solution of the present invention, a second motor is fixedly connected to the inside of the workbench, and the output end of the second motor is fixedly connected to the first rotating rod through a coupling. A first limiting groove is symmetrically opened inside the first rotating rod, and a first limiting block is slidably connected to the inside of the first limiting groove, and the first limiting block is fixedly connected to the rotating cylinder.

[0013] The staff starts the second motor to drive the first rotating rod to rotate, and the first rotating rod drives the first limiting block to rotate through the first limiting groove, and the first limiting block drives the rotating cylinder to rotate. When the rotating cylinder rotates, it also drives the limiting ring to rotate inside the second limiting groove, so as to limit the rotating cylinder and prevent the rotating cylinder from shifting during rotation.

[0014] As a preferred solution of the present invention, a fourth motor is fixedly connected inside the top plate, an output end of the fourth motor is fixedly connected to a first screw rod via a coupling, and the first screw rod is threadedly connected to the first moving block.

[0015] The fourth motor is started to drive the first screw rod to rotate, and the first screw rod drives the moving plate to move to a specified position through the first moving block.

[0016] As a preferred solution of the present invention, a third motor is fixedly connected to the outer side of the movable plate, an output end of the third motor is fixedly connected to a rotating shaft via a coupling, a transmission gear is fixedly connected to the outer side of the rotating shaft, and the transmission gear is meshingly connected to a fixed gear ring.

[0017] The third motor is started to drive the rotating shaft to rotate, and the rotating shaft drives the transmission gear to rotate. Under the action of the transmission gear and the fixed gear ring, the first fixed block is driven to rotate through the connecting block.

[0018] As a preferred solution of the present invention, the connecting block is rotatably connected to a third rotating rod internally, the top of the third rotating rod is fixedly connected to a third bevel gear, the outer side of the movable plate is fixedly connected to a bevel gear ring, the bevel gear ring is meshingly connected to the third bevel gear, the bottom of the third rotating rod is fixedly connected to a turntable, the third movable frame is provided with a slide groove inside, the slide groove is slidably connected to a slider, and the slider is fixedly connected to the turntable.

[0019] While the flaw detector head is making a circumferential motion, the first fixed block drives the third rotating rod to rotate, the third rotating rod drives the third bevel gear to rotate, and under the action of the third bevel gear and the bevel gear ring, the turntable is driven to rotate inside the first fixed block, and the turntable drives the slider to slide inside the slide groove, thereby driving the third moving frame to reciprocate, the third moving frame pushes the connecting plate to move, and the connecting plate drives the fixed frame to reciprocate through the second fixed block, thereby increasing the scanning area.

[0020] As a preferred solution of the present invention, a fifth motor is fixedly connected inside the fixed frame, an output end of the fifth motor is fixedly connected to a second bidirectional screw via a coupling, and the second bidirectional screw is threadedly connected to the third moving block.

[0021] The fifth motor is started to drive the second bidirectional screw to rotate, and the second bidirectional screw drives the second rotating rod to move through the third moving block.

[0022] As a preferred solution of the present invention, a third limiting groove is provided inside the push plate, a second limiting block is symmetrically slidably connected inside the third limiting groove, and the second limiting block is fixedly connected to the moving frame.

[0023] When the moving frame moves, it drives the second limiting block to slide inside the third limiting groove, so as to facilitate the limiting of the moving frame and prevent the moving frame from deflecting during the moving process.

[0024] As a preferred solution of the present invention, a control panel is fixedly connected to the outer side of the workbench, and the fifth motor, the second motor, the third motor, the first motor and the fourth motor are all electrically connected to the control panel.

[0025] All electrical equipment in the device is powered by an external power supply and controlled through a control panel.

[0026] The beneficial effects achieved by the present invention are as follows: through the arrangement of the transmission gear, the fixed gear ring and the flaw detection head, the rotating shaft can be rotated to drive the transmission gear to move, and the fixed frame can be driven to rotate through the connecting block under the action of the transmission gear and the fixed gear ring, thereby driving the flaw detection head to rotate around the steel casting, ensuring the stability of the scanning imaging and facilitating more detailed and uniform imaging; through the arrangement of the clamping plate, the second movable frame and the second movable block, the first rotating rod can be rotated to drive the second bevel gear to rotate, and the second screw rod can be driven to rotate under the action of the second bevel gear and the first bevel gear, and the second screw rod can drive the placement plate to move through the support rod, so as to facilitate the adjustment of the position of the clamping plate according to the height of the steel casting, and the first bidirectional screw rod is rotated to drive the second movable frame to move through the second movable block, thereby enabling the steel casting to be quickly clamped, and the condition of the steel casting can be more easily determined. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0028] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0029] Figure 2 It is a schematic diagram of the internal three-dimensional structure of the present invention;

[0030] Figure 3 It is a schematic diagram of the three-dimensional structure of the fixed gear ring in the present invention;

[0031] Figure 4 is a schematic diagram of the three-dimensional structure of the first rotating rod in the present invention;

[0032] Figure 5 is a schematic diagram of the three-dimensional structure of the second moving frame in the present invention;

[0033] Figure 6 It is a schematic diagram of the three-dimensional structure of the bevel gear ring in the present invention;

[0034] Figure 7 It is a schematic diagram of the three-dimensional structure of the turntable in the present invention;

[0035] Figure 8 It is a schematic diagram of the three-dimensional structure of the fixing frame in the present invention.

[0036] In the figure: 1, workbench; 2, moving plate; 3, first moving frame; 4, clamping plate; 5, top plate; 6, first bevel gear; 7, first bidirectional screw rod; 8, first rotating rod; 9, second bevel gear; 10, first motor; 11, vertical plate; 12, third motor; 13, first moving block; 14, first screw rod; 15, second motor; 16, fourth motor; 17, rotating shaft; 18, transmission gear; 19, fixed frame; 20, connecting block; 21, fixed gear ring; 22, placing plate; 23, first limiting groove; 24, second moving frame; 25, supporting rod; 26, second limiting 1. a first stopper; 2. a second bevel gear; 3. a bevel gear ring; 4. a second bevel gear ring; 5. a second bevel gear ring; 6. a second bevel gear ring; 7. a second bevel gear ring; 8. a third bevel gear ring; 9. a second bevel gear ring; 10. a second bevel gear ring; 11. a second bevel gear ring; 12. a third bevel gear ring; 13. a third bevel gear ring; 14. a third bevel gear ring; 15. a third bevel gear ring; 16. a third bevel gear ring; 17. a third bevel gear ring; 18. a third bevel gear ring; 19. a third bevel gear ring; 20. a third bevel gear ring; 21. a third bevel gear ring; 22. a third bevel gear ring; 23. a third bevel gear ring; 24. a third bevel gear ring; 25. a third bevel gear ring; 26. a third bevel gear ring; 27. a second bevel gear ring; 28. a third bevel gear ring; 29. ​​a third bevel gear ring; 30. a third bevel gear ring; 31. a third bevel gear ring; 32. a third bevel gear ring; 33. a third bevel gear ring; 34. a third bevel gear ring; 35. a third bevel gear ring; 36. a third bevel gear ring; 37. a third bevel gear ring; 38. a third bevel gear ring; 39. a third bevel gear ring; 40. a third bevel gear ring; 41. a third bevel gear ring; 42. a third bevel gear ring; 43. a third bevel gear ring; 44. a third bevel gear ring; 45. a third bevel gear ring; 46. a third bevel gear ring; 47. a third bevel gear ring; 48. a third be DETAILED DESCRIPTION

[0037] 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.

[0038] See also Figures 1 to 8The present invention provides a large-scale steel casting flaw detection device, comprising a workbench 1, wherein a second moving frame 24 is symmetrically slidably connected inside the workbench 1, a first moving frame 3 is fixedly connected to the top of the second moving frame 24, a support rod 25 is slidably connected inside the first moving frame 3, a placement plate 22 is fixedly connected to the top of the support rod 25, a clamping plate 4 is fixedly connected to the top of the placement plate 22, a vertical plate 11 is fixedly connected to the top of the vertical plate 11, a top plate 5 is fixedly connected to the top of the top plate 5, a first moving block 13 is slidably connected inside the top plate 5, a moving plate 2 is fixedly connected to the bottom of the first moving block 13, a fixed gear ring 21 is rotatably connected inside the moving plate 2, and the fixed gear ring 21 The interior of the fixing block 20 is fixedly connected with the connecting block 20, the bottom of the connecting block 20 is fixedly connected with the first fixed block 42, the interior of the first fixed block 42 is slidably connected with the third moving frame 48, the outer side of the third moving frame 48 is fixedly connected with a connecting plate 49, the bottom of the connecting plate 49 is fixedly connected with the second fixed block 50, the bottom of the second fixed block 50 is fixedly connected with the fixed frame 19, the interior of the fixed frame 19 is symmetrically slidably connected with the third moving block 40, the bottom of the third moving block 40 is rotatably connected with the second rotating rod 34, the bottom of the second rotating rod 34 is rotatably connected with the moving frame 37, the bottom of the moving frame 37 is slidably connected with the push plate 32, and the bottom of the push plate 32 is fixedly connected with the flaw detection machine head 35.

[0039] It can be understood that the staff starts the second motor 15 to drive the first rotating rod 8 to rotate, the first rotating rod 8 drives the first limiting block 28 to rotate through the first limiting groove 23, the first limiting block 28 drives the rotating cylinder 30 to rotate, and the rotating cylinder 30 drives the limiting ring 29 to rotate inside the second limiting groove 26 while rotating, so as to limit the rotating cylinder 30 and prevent the rotating cylinder 30 from deviating during the rotation process, the rotating cylinder 30 drives the second bevel gear 9 to rotate, and drives the second screw rod 27 to rotate under the action of the second bevel gear 9 and the first bevel gear 6, and the second screw rod 27 drives the placement plate 22 to move up and down through the support rod 25, so as to facilitate The position of the clamping plate 4 is adjusted according to the height of the steel casting, the steel casting is placed between the two clamping plates 4 through the movable plate 2, the first motor 10 is started to drive the first bidirectional screw rod 7 to rotate, the first bidirectional screw rod 7 drives the second movable frame 24 to move through the second movable block 31, thereby driving the clamping plate 4 to move relatively, so as to facilitate the rapid clamping of the steel casting, the fourth motor 16 is started to drive the first screw rod 14 to rotate, the first screw rod 14 drives the movable plate 2 to move to the specified position through the first movable block 13, the fifth motor 38 is started to drive the second bidirectional screw rod 39 to rotate, the second bidirectional screw rod 39 drives the second rotating rod 34 to move through the third movable block 40 The second rotating rod 34 pushes the push plate 32 to move through the moving frame 37, and the push plate 32 pushes the flaw detection head 35 to move, so that the flaw detection head 35 is close to the surface of the steel casting for flaw detection scanning, ensuring the stability of the scanning imaging, facilitating more detailed and uniform imaging, and making it easier to determine the condition of the steel casting. The third motor 12 is started to drive the rotating shaft 17 to rotate, and the rotating shaft 17 drives the transmission gear 18 to rotate. Under the action of the transmission gear 18 and the fixed gear ring 21, the first fixed block 42 is driven to rotate through the connecting block 20. The first fixed block 42 drives the flaw detection head 35 to rotate through the fixed frame 19, so that the flaw detection head 35 performs a circumferential motion around the steel casting to perform a scanning action. When the command is executed, while the flaw detector head 35 is making a circumferential motion, the first fixed block 42 drives the third rotating rod 41 to rotate, and the third rotating rod 41 drives the third bevel gear 43 to rotate. Under the action of the third bevel gear 43 and the bevel gear ring 44, the turntable 45 is driven to rotate inside the first fixed block 42, and the turntable 45 drives the slider 47 to slide inside the slide groove 46, thereby driving the third moving frame 48 to reciprocate, and the third moving frame 48 pushes the connecting plate 49 to move, and the connecting plate 49 drives the fixed frame 19 to reciprocate through the second fixed block 50, thereby driving the flaw detector head 35 to reciprocate, thereby increasing the scanning area and making it easier to determine the condition of the steel casting.

[0040] Furthermore, the inside of the workbench 1 is fixedly connected to a first motor 10, the output end of the first motor 10 is fixedly connected to a first bidirectional screw rod 7 via a coupling, the outer side of the first bidirectional screw rod 7 is symmetrically threadedly connected to a second moving block 31, and the second moving block 31 is fixedly connected to the second moving frame 24.

[0041] It is understandable that starting the first motor 10 drives the first bidirectional screw 7 to rotate, and the first bidirectional screw 7 drives the second moving frame 24 to move through the second moving block 31, thereby driving the clamping plate 4 to move relative to each other, which is convenient for fast clamping of the cast steel part.

[0042] Furthermore, the second movable frame 24 is internally rotatably connected to the rotating cylinder 30, the outer side of the rotating cylinder 30 is fixedly connected to the second bevel gear 9, the second movable frame 24 is internally and rotatably connected to the second screw rod 27 located above the rotating cylinder 30, the second screw rod 27 is threadedly connected to the support rod 25, the bottom of the second screw rod 27 is fixedly connected to the first bevel gear 6, the first bevel gear 6 is meshingly connected to the second bevel gear 9, the interior of the second movable frame 24 is symmetrically provided with a second limit groove 26, the interior of the second limit groove 26 is rotatably connected to a limit ring 29, and the limit ring 29 is fixedly connected to the rotating cylinder 30.

[0043] It can be understood that the rotating cylinder 30 drives the second bevel gear 9 to rotate, and under the action of the second bevel gear 9 and the first bevel gear 6, the second screw rod 27 is driven to rotate, and the second screw rod 27 drives the placement plate 22 to move up and down through the support rod 25, so as to facilitate the adjustment of the position of the clamping plate 4 according to the height of the cast steel part.

[0044] Furthermore, a second motor 15 is fixedly connected inside the workbench 1, and an output end of the second motor 15 is fixedly connected to a first rotating rod 8 via a coupling. A first limiting groove 23 is symmetrically provided inside the first rotating rod 8, and a first limiting block 28 is slidably connected inside the first limiting groove 23. The first limiting block 28 is fixedly connected to the rotating cylinder 30.

[0045] It is understandable that the staff starts the second motor 15 to drive the first rotating rod 8 to rotate, the first rotating rod 8 drives the first limiting block 28 to rotate through the first limiting groove 23, the first limiting block 28 drives the rotating cylinder 30 to rotate, and the rotating cylinder 30 drives the limiting ring 29 to rotate inside the second limiting groove 26 while rotating, so as to facilitate the limiting of the rotating cylinder 30 and prevent the rotating cylinder 30 from shifting during the rotation process.

[0046] Furthermore, a fourth motor 16 is fixedly connected inside the top plate 5 , and an output end of the fourth motor 16 is fixedly connected to a first screw rod 14 via a coupling, and the first screw rod 14 is threadedly connected to the first moving block 13 .

[0047] It can be understood that the fourth motor 16 is started to drive the first screw rod 14 to rotate, and the first screw rod 14 drives the moving plate 2 to move to a specified position through the first moving block 13 .

[0048] Furthermore, a third motor 12 is fixedly connected to the outer side of the movable plate 2 , and an output end of the third motor 12 is fixedly connected to a rotating shaft 17 via a coupling. A transmission gear 18 is fixedly connected to the outer side of the rotating shaft 17 , and the transmission gear 18 is meshedly connected to a fixed gear ring 21 .

[0049] It is understandable that starting the third motor 12 drives the rotating shaft 17 to rotate, the rotating shaft 17 drives the transmission gear 18 to rotate, and under the action of the transmission gear 18 and the fixed gear ring 21, the first fixed block 42 is driven to rotate through the connecting block 20.

[0050] Furthermore, the connecting block 20 is internally rotatably connected to a third rotating rod 41, the top of the third rotating rod 41 is fixedly connected to a third bevel gear 43, the outer side of the movable plate 2 is fixedly connected to a bevel gear ring 44, the bevel gear ring 44 is meshingly connected to the third bevel gear 43, the bottom of the third rotating rod 41 is fixedly connected to a turntable 45, a slide groove 46 is provided inside the third movable frame 48, a slider 47 is slidably connected inside the slide groove 46, and the slider 47 is fixedly connected to the turntable 45.

[0051] Furthermore, a fifth motor 38 is fixedly connected inside the fixed frame 19 , and an output end of the fifth motor 38 is fixedly connected to a second bidirectional screw rod 39 via a coupling, and the second bidirectional screw rod 39 is threadedly connected to the third moving block 40 .

[0052] It is understandable that the fifth motor 38 is started to drive the second bidirectional screw 39 to rotate, and the second bidirectional screw 39 drives the second rotating rod 34 to move through the third moving block 40 .

[0053] Furthermore, a third limiting groove 33 is formed inside the push plate 32 , and a second limiting block 36 is symmetrically slidably connected inside the third limiting groove 33 . The second limiting block 36 is fixedly connected to the moving frame 37 .

[0054] It is understandable that, when the moving frame 37 moves, it drives the second limiting block 36 to slide inside the third limiting groove 33, so as to facilitate limiting the moving frame 37 and prevent the moving frame 37 from shifting during the movement.

[0055] Furthermore, a control panel is fixedly connected to the outer side of the workbench 1, and the fifth motor 38, the second motor 15, the third motor 12, the first motor 10 and the fourth motor 16 are all electrically connected to the control panel.

[0056] It is understandable that the electrical devices in the device are all powered by an external power supply and controlled by a control panel.

[0057] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A large steel casting flaw detection device, comprising a workbench (1), characterized in that: The workbench (1) is symmetrically and slidably connected to a second moving frame (24) inside, the top of the second moving frame (24) is fixedly connected to a first moving frame (3), the first moving frame (3) is slidably connected to a support rod (25) inside, the top of the support rod (25) is fixedly connected to a placement plate (22), the top of the placement plate (22) is fixedly connected to a clamping plate (4), the top of the workbench (1) is fixedly connected to a vertical plate (11), the top of the vertical plate (11) is fixedly connected to a top plate (5), the top of the top plate (5) is slidably connected to a first moving block (13), the bottom of the first moving block (13) is fixedly connected to a moving plate (2), the inside of the moving plate (2) is rotatably connected to a fixed gear ring (21) ), the interior of the fixed gear ring (21) is fixedly connected with a connecting block (20), the bottom of the connecting block (20) is fixedly connected with a first fixed block (42), the interior of the first fixed block (42) is slidably connected with a third moving frame (48), the outer side of the third moving frame (48) is fixedly connected with a connecting plate (49), the bottom of the connecting plate (49) is fixedly connected with a second fixed block (50), the bottom of the second fixed block (50) is fixedly connected with a fixed frame (19), the interior of the fixed frame (19) is symmetrically slidably connected with a third moving block (40), the bottom of the third moving block (40) is rotatably connected with a second rotating rod (34), and the bottom of the second rotating rod (34) is rotatably connected with a moving frame (37) The bottom of the movable frame (37) is slidably connected to a push plate (32), the bottom of the push plate (32) is fixedly connected to a flaw detection machine head (35), the inside of the workbench (1) is fixedly connected to a first motor (10), the output end of the first motor (10) is fixedly connected to a first bidirectional screw rod (7) through a coupling, the outer side of the first bidirectional screw rod (7) is symmetrically threadedly connected to a second movable block (31), the second movable block (31) is fixedly connected to a second movable frame (24), the inside of the second movable frame (24) is rotatably connected to a rotating cylinder (30), the outer side of the rotating cylinder (30) is fixedly connected to a second bevel gear (9), the inside of the second movable frame (24) and located above the rotating cylinder (30) is rotatably connected to A second screw rod (27) is connected, the second screw rod (27) is threadedly connected to the support rod (25), the bottom of the second screw rod (27) is fixedly connected to the first bevel gear (6), the first bevel gear (6) is meshedly connected to the second bevel gear (9), the second movable frame (24) is symmetrically provided with a second limiting groove (26) inside, the second limiting groove (26) is rotatably connected inside with a limiting ring (29), the limiting ring (29) is fixedly connected to the rotating cylinder (30), the workbench (1) is fixedly connected with a second motor (15) inside, the output end of the second motor (15) is fixedly connected to the first rotating rod (8) through a coupling, the first rotating rod (8) is symmetrically provided with a first limiting groove (23) inside,The first limiting groove (23) is internally slidably connected to a first limiting block (28), the first limiting block (28) is fixedly connected to the rotating cylinder (30), the top plate (5) is internally fixedly connected to a fourth motor (16), the output end of the fourth motor (16) is fixedly connected to a first screw rod (14) via a coupling, the first screw rod (14) is threadedly connected to the first moving block (13), the outer side of the moving plate (2) is fixedly connected to a third motor (12), the third motor (12) The output end of the connecting block (20) is fixedly connected to a rotating shaft (17) through a coupling, the outer side of the rotating shaft (17) is fixedly connected to a transmission gear (18), the transmission gear (18) is meshingly connected to a fixed gear ring (21), the interior of the connecting block (20) is rotatably connected to a third rotating rod (41), the top of the third rotating rod (41) is fixedly connected to a third bevel gear (43), the outer side of the moving plate (2) is fixedly connected to a bevel gear ring (44), the bevel gear ring (44) is meshingly connected to the third bevel gear (43) The bottom of the third rotating rod (41) is fixedly connected with a rotating disk (45), a sliding groove (46) is provided inside the third movable frame (48), a sliding block (47) is slidably connected inside the sliding groove (46), the sliding block (47) is fixedly connected to the rotating disk (45), a fifth motor (38) is fixedly connected inside the fixed frame (19), an output end of the fifth motor (38) is fixedly connected with a second bidirectional screw rod (39) through a coupling, and the second bidirectional screw rod (39) is connected to the rotating disk (45). The third moving block (40) is threadedly connected, a third limiting groove (33) is provided inside the push plate (32), a second limiting block (36) is symmetrically slidably connected inside the third limiting groove (33), the second limiting block (36) is fixedly connected to the moving frame (37), a control panel is fixedly connected to the outside of the workbench (1), and the fifth motor (38), the second motor (15), the third motor (12), the first motor (10) and the fourth motor (16) are all electrically connected to the control panel.

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