Crankshaft flaw detection device based on visual detection

Abstract

The invention discloses a crankshaft flaw detection device based on visual inspection, relates to the field of crankshaft detection, and solves the problem that an existing crankshaft flaw detection device is troublesome to operate, the crankshaft flaw detection device comprises a box body and a mounting box fixedly mounted at the top of the box body, and two symmetrically distributed mounting frames are arranged at the top of the mounting box; clamping plates are arranged on the corresponding sides of the two mounting frames, a first driving motor is fixedly mounted on the outer side of the mounting frame located on the left side of the mounting box, and an ultraviolet shooting device is arranged above the mounting box; the material lifting mechanism is used for lifting and discharging the crankshaft above the mounting box, and the material lifting mechanism is mounted on the inner side of the mounting box; through the material lifting mechanism, the two clamping blocks can be pushed to be close to the two ends of the crankshaft through the two mounting frames, clamping and positioning of the crankshaft are achieved, after crankshaft detection is completed, the bottom of the crankshaft can be lifted when the two mounting frames are away from each other, a worker can conveniently take the crankshaft, and the working efficiency is improved. Therefore, the effects of convenient clamping and positioning and safe material taking are achieved.

Description

Technical Field

[0001] The invention relates to the field of crankshaft detection, in particular to a crankshaft flaw detection device based on visual detection. Background Art

[0002] The crankshaft is the most important component in the engine. It bears the force transmitted from the connecting rod and converts it into torque, which is output through the crankshaft and drives other accessories on the engine. The crankshaft is subjected to bending and torsional loads under the combined effect of the centrifugal force of the rotating mass, the periodically changing gas inertia force and the reciprocating inertia force. Therefore, the crankshaft is required to have sufficient strength and rigidity, the journal surface needs to be wear-resistant, work evenly and have good balance, and the crankshaft needs to be inspected for flaws.

[0003] Magnetic particle inspection is an effective non-destructive testing method, which is suitable for detecting defects and cracks on the surface of crankshafts. Its principle is to coat magnetic powder on the surface of crankshafts and apply magnetic field through tools or equipment to make magnetic powder present magnetic channels of defects and cracks, which is convenient for observation and diagnosis. It can identify cracks, braids and other appearance damage on the surface of crankshafts. Existing Chinese public patent document: CN218601217U discloses a crankshaft flaw detection device based on visual inspection, which supports the crankshaft with supporting rollers. When loading, the crankshaft is first placed on the supporting rollers, and the two supporting rollers support the lower end of the crankshaft, so that the driving motor drives the screw to rotate, so that the moving block drives the first The clamping seat and the second clamping seat are moved so that the two positioning plates are fitted on both sides of the crankshaft to achieve clamping and fixing of the crankshaft, and the telescopic cylinder can be used to push the positioning plate on one side to move, and the rotating motor drives the positioning plate on the other side to rotate, driving the crankshaft to rotate, so as to facilitate the uniform spraying of magnetic suspension on the crankshaft. However, when loading the crankshaft, the crankshaft needs to be placed on the supporting roller first, and then the two ends of the crankshaft are clamped and positioned by two positioning plates. At this time, the supporting roller is still under the crankshaft. If the rotation of the crankshaft is to be ensured, the supporting roller needs to be moved down and away from the crankshaft, and after the inspection is completed, the supporting roller needs to be moved up to unload the crankshaft. Operational errors are prone to occur, and unloading is more troublesome. Summary of the invention

[0004] The object of the present invention is to provide a crankshaft flaw detection device based on visual detection to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A crankshaft flaw detection device based on visual inspection comprises: a box body and an installation box fixedly installed on the top of the box body, two symmetrically distributed installation frames are arranged on the top of the installation box, and a clamping plate is arranged on the corresponding side of the two installation frames, and a driving motor is fixedly installed on the outer side of the installation frame located on the left side of the installation box, and an ultraviolet camera is arranged above the installation box for flaw detection of the crankshaft sprayed with magnetic suspension; it also includes: a lifting mechanism for lifting and discharging the crankshaft above the installation box, and the lifting mechanism is installed on the inner side of the installation box; a spraying mechanism for comprehensively spraying the crankshaft on the installation box, and the spraying mechanism is installed above the installation box; a material transfer mechanism for detecting the rotation of the crankshaft on the installation box, and the material transfer mechanism is installed on the outer side of the installation frame.

[0006] Preferably, the lifting mechanism includes a screw rod 1 rotatably mounted on the inner side of the installation box, the screw rod 1 is a counter-rotating screw rod, screw rods 2 are fixedly mounted on both ends of the screw rod 1, and the two screw rods 2 are symmetrically distributed, and a driving motor 2 is fixedly mounted on the inner side of the installation box, so that the driving motor 2 can drive the screw rod 1 and the screw rod 2 to rotate synchronously when running, and the output end of the driving motor 2 is fixedly connected to one end of the adjacent screw rod 2, and a lifting plate is arranged above the installation box, and two symmetrically distributed V-shaped folding plates are rotatably mounted on the bottom of the lifting plate, and the bottom of the lifting plate The top of the mounting frame is fixedly provided with four support rods in a rectangular array, the support rods slide through the mounting box, a slider 1 is fixedly and rotatably installed between the two ends of the two V-shaped folding plates, the two sliders 1 respectively cooperate with the threads at the two ends of the screw rod 1, so that when the screw rod 1 rotates, it can drive the two sliders 1 to move away from or approach each other, and a slider 2 is fixedly installed at the bottom of the mounting frame, the slider 2 is slidably installed on the inner side of the mounting box, the two sliders 2 respectively cooperate with the two screw rods 2, so that the two screw rods 2 drive the two mounting frames to move closer to or away from each other through the corresponding sliders 2.

[0007] Preferably, the spray mechanism includes a top frame fixedly mounted on the top of the box body, the ultraviolet camera is fixedly mounted on the top inner wall of the top frame, a mounting plate is slidably mounted on the inner side of the top frame, a slide groove is provided on the surface of the top frame for limiting the sliding of the mounting plate, two symmetrical top rods are fixedly mounted on the inner side of the slide groove, the top rods slide through the mounting plate to support the mounting plate, two symmetrically distributed slides are fixedly mounted on the bottom of the mounting plate, a moving block is slidably mounted on the inner side of the slide, a sleeve is provided on the inner side of the moving block, a screw three cooperating with the sleeve is rotatably mounted on the inner side of the slide, a discharge nozzle is fixedly mounted on the bottom of the moving block, and the bottom of the discharge nozzle can spray the crankshaft The cam is provided with a plurality of movable parts, and the movable parts are provided with a plurality of movable parts, and the movable parts are provided with a plurality of movable parts.

[0008] Preferably, the material transfer mechanism includes a baffle frame fixedly mounted on the bottom of the moving block, the baffle frame is located at the outer side of the discharging nozzle, an elastic button for opening and closing is arranged on the outer side of the discharging nozzle, a through hole for installing the elastic button is opened on the outer side of the baffle frame, a limit frame is fixedly mounted on the top of the mounting frame located on the right side of the mounting box, the limit frame, the elastic button and the baffle frame are on the same horizontal line, so that when the limit frame contacts the elastic button, the discharging nozzle is closed and the movement of the baffle frame is blocked, a plurality of card beads distributed symmetrically with respect to the center are arranged on the outer side of the sleeve, the card beads are in a hemispherical structure, a slide plate is fixedly mounted on the outer side of the card beads, a sliding cavity is opened on the outer side of the sleeve for the sliding plate and the card beads to limit the sliding movement, so as to facilitate the movement of the sliding plate and the card beads, a spring is fixedly mounted between the sliding plate and the inner side of the sliding cavity, a spherical groove is opened on the inner side of the moving block for the limiting sliding movement of the card beads, so that the sleeve can drive the moving block to move along the outer side of the slide frame through the card beads.

[0009] Preferably, a protective frame is fixedly installed on the top of the installation box to prevent the magnetic suspension from splashing out.

[0010] Preferably, a protective plate is fixedly mounted on the outer side of the splint, and anti-slip grooves are provided on the outer side of the protective plate to increase the friction between the splint and the crankshaft.

[0011] Preferably, a baffle is fixedly installed on one side of the mounting frame close to the clamping plate, and a long groove for limiting the sliding of the second slider is opened on the top of the mounting box, so that the baffle can block the long groove to provide protection for the second screw.

[0012] Preferably, two symmetrically distributed receiving rollers are rotatably mounted on the top of the material lifting plate, and the outer sides of the receiving rollers are made of rubber material to provide cushioning for the falling of the crankshaft.

[0013] Preferably, a limit block is fixedly installed at one end of the prismatic rod away from the clamping plate, and a tension spring is provided on the outer side of the prismatic rod. The tension spring is fixedly installed between the limit block and the inner side of the rotating drum, so that the clamping plate can elastically clamp the two ends of the crankshaft.

[0014] Preferably, a material storage box is fixedly installed on the top of the top frame, and the material storage box is connected to the discharge nozzle through two symmetrically distributed discharge pipes, and the material storage box transports the magnetic suspension to the discharge nozzle through the discharge pipes.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention uses a lifting mechanism to push two clamping blocks close to the two ends of the crankshaft through two mounting frames to achieve clamping and positioning of the crankshaft. After the crankshaft inspection is completed, the bottom of the crankshaft can be lifted when the two mounting frames are away from each other, making it convenient for workers to take the crankshaft, thereby achieving the effect of easy clamping and positioning and safe material removal.

[0016] The present invention uses a spraying mechanism to enable a driving motor to drive a clamping plate at a corresponding position to rotate, so that the crankshaft in a clamped state is in a state of self-rotation, and the discharge nozzle moves from left to right, so as to evenly spray the magnetic suspension on the outside of the crankshaft, thereby improving the uniformity of the magnetic suspension spraying, thereby achieving the effect of comprehensive spraying and improving the accuracy of flaw detection.

[0017] The present invention uses a material transfer mechanism to provide resistance for the moving block when the baffle frame contacts the limit frame, so that the card bead on the sleeve can be received into its sliding cavity, and the discharge nozzle is closed, so that the clamping plate can keep rotating, which is convenient for comprehensive flaw detection of the crankshaft, thereby achieving the effect of improving the convenience of flaw detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the installation box and the installation frame in the present invention; Figure 3 It is a schematic diagram of the structure of the lifting plate and the V-shaped folding plate in the present invention; Figure 4 It is a schematic diagram of the structure of the rotating cylinder and the prismatic rod in the present invention; Figure 5 It is a schematic diagram of the structure of the top frame and the mounting plate in the present invention; Figure 6 It is a schematic diagram of the structure of the material discharging nozzle and the material storage box in the present invention; Figure 7 It is a schematic diagram of the structure of the moving block and the sleeve in the present invention; Figure 8 It is a schematic diagram of the slide plate and the card bead structure in the present invention.

[0019] In the figure: 1. box; 2. installation box; 3. installation frame; 4. clamping plate; 5. driving motor 1; 6. screw 1; 7. screw 2; 8. driving motor 2; 9. lifting plate; 10. V-shaped folding plate; 11. support rod; 12. slider 1; 13. slider 2; 14. top frame; 15. mounting plate; 16. slide; 17. moving block; 18. sleeve; 19. screw 3; 20. discharging nozzle; 21. rotating drum; 22. prismatic rod; 23. synchronous belt; 24. push plate; 25. stop frame; 26. elastic button; 27. limit frame; 28. card bead; 29. ​​slide plate; 30. spring; 31. protection frame; 32. protection plate; 33. stop plate; 34. receiving roller; 35. limit block; 36. tension spring; 37. storage box; 38. ultraviolet camera. DETAILED DESCRIPTION

[0020] 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.

[0021] Example 1: Please refer to Figure 1-Figure 8 The crankshaft flaw detection device based on visual inspection shown in the figure includes a box body 1 and an installation box 2 fixedly installed on the top of the box body 1. Two symmetrically distributed installation frames 3 are arranged on the top of the installation box 2. A clamping plate 4 is arranged on the corresponding side of the two installation frames 3. A driving motor 5 is fixedly installed on the outer side of the installation frame 3 located on the left side of the installation box 2. An ultraviolet camera 38 is arranged above the installation box 2 for flaw detection of the crankshaft sprayed with magnetic suspension. A protective plate 32 is fixedly installed on the outer side of the clamping plate 4. The outer side of the protective plate 32 is provided with anti-slip grooves to increase the friction between the clamping plate 4 and the crankshaft; it also includes: a lifting mechanism for lifting and discharging the crankshaft above the installation box 2, and the lifting mechanism is installed on the inner side of the installation box 2; a spraying mechanism for comprehensively spraying the crankshaft on the installation box 2, and the spraying mechanism is installed above the installation box 2; a material transfer mechanism for detecting the rotation of the crankshaft on the installation box 2, and the material transfer mechanism is installed on the outer side of the installation frame 3.

[0022] The material lifting mechanism includes a screw rod 6 rotatably installed on the inner side of the installation box 2, the screw rod 6 is a counter-rotating screw rod, and screw rods 27 are fixedly installed at both ends of the screw rod 6, and the two screw rods 27 are symmetrically distributed. A driving motor 28 is fixedly installed on the inner side of the installation box 2, so that the driving motor 28 can drive the screw rod 6 and the screw rod 27 to rotate synchronously when the driving motor 28 is running, and the output end of the driving motor 28 is fixedly connected to one end of the adjacent screw rod 27. A material lifting plate 9 is arranged above the installation box 2, and two symmetrically distributed V-shaped folding plates 10 are rotatably installed at the bottom of the material lifting plate 9. Four support rods 11 in a rectangular array are fixedly installed at the bottom of the material lifting plate 9, and the support rods 11 slide through the installation box 2, and a slider 12 is fixedly and rotatably installed between the two ends of the two V-shaped folding plates 10, and the two sliders 12 respectively cooperate with the threads at the two ends of the screw rod 6. , when the screw rod 1 6 rotates, it can drive the two sliders 12 to move away from or approach each other. A slider 2 13 is fixedly installed at the bottom of the mounting frame 3. The slider 2 13 is slidably installed on the inner side of the mounting box 2. The two sliders 2 13 respectively cooperate with the two screw rods 2 7, so that the two screw rods 2 7 respectively drive the two mounting frames 3 to move closer to or away from each other through the corresponding sliders 2 13. The thread pitch on the screw rod 1 6 is greater than the thread pitch on the screw rod 2 7. A baffle 33 is fixedly installed on the side of the mounting frame 3 close to the clamping plate 4. A long groove for the limited sliding of the slider 2 13 is opened on the top of the mounting box 2, so that the baffle 33 can block the long groove to provide protection for the screw rod 2 7. Two symmetrically distributed material receiving rollers 34 are rotatably installed on the top of the lifting plate 9. The outer side of the material receiving roller 34 is made of rubber material to provide buffering for the falling of the crankshaft. When the driving motor 28 is started, it can drive the two sliders 2 13 to approach each other through the two symmetrically distributed screw rods 2 7, so that the slider 2 13 drives the mounting frame 3 to move synchronously, and the mounting frame 3 can drive the clamping plate 4 to contact the end of the crankshaft, so that the two clamping plates 4 clamp and position the two ends of the crankshaft, thereby realizing rapid and safe flaw detection of the crankshaft, and facilitating flaw detection of the crankshaft. After the flaw detection is completed, when the two clamping plates 4 move away from each other, the screw 2 7 drives the screw 1 6 to rotate, so that the screw 1 6 drives the two sliders 12 to approach each other, and the two sliders 12 push the lifting plate 9 to move upward through the two V-shaped folding plates 10, so that the two receiving rollers 34 on the lifting plate 9 can catch the crankshaft, which is convenient for the staff to take the crankshaft, thereby achieving the effect of easy clamping and positioning and safe material collection.

[0023] Working principle: first, the staff starts the driving motor 28, so that the driving motor 28 drives the screw 1 6 and the two screw 2 7 to rotate synchronously, and the screw 2 7 drives the slider 2 13 to move along the inner side of the installation box 2, so that the slider 2 13 drives the installation frame 3 to move synchronously, and the two installation frames 3 can respectively drive the two clamps 4 to approach each other. At the same time, the two opposite threads on the screw 2 7 respectively drive the two sliders 12 away from each other, so that the two sliders 12 drive the two V-shaped folding plates 10 to open downward, and the two V-shaped folding plates 10 pull the lifting plate 9 to move downward, so that the lifting plate 9 drives the four support rods 11 to move downward along the inner side of the installation box 2. At this time, the staff puts the crankshaft between the two clamps 4, so that the two clamps 4 close to each other respectively press against the two ends of the crankshaft, so as to realize the clamping and positioning of the crankshaft, which is convenient for more sizes. After the crankshaft is clamped and positioned, the staff can spray the magnetic suspension on the crankshaft, and use the ultraviolet camera 38 to shoot and record the magnetic traces on the crankshaft to realize the flaw detection of the crankshaft. After the detection is completed, the staff starts the drive motor 28 again, so that the drive motor 28 drives the screw 1 6 and the screw 2 7 to rotate in the opposite direction. The screw 27 uses the slider 2 13 to make the two clamping plates 4 move away from the crankshaft at the same time. At the same time, the screw 1 6 drives the V-shaped folding plate 10 to support upward through the slider 12. Since the thread pitch on the screw 1 6 is greater than the thread pitch on the screw 2 7, the lifting plate 9 can move upward quickly and receive the crankshaft through two receiving rollers 34, which is convenient for the staff to take the crankshaft, improves the convenience of crankshaft installation and material collection, and facilitates continuous detection of multiple crankshafts, thereby achieving the effect of easy clamping and positioning and safe material collection.

[0024] Example 2: Please refer to Figure 2-Figure 7, this embodiment further explains the first embodiment, the spray mechanism shown in the figure includes a top frame 14 fixedly mounted on the top of the box body 1, the ultraviolet camera 38 is fixedly mounted on the top inner wall of the top frame 14, a mounting plate 15 is slidably mounted on the inner side of the top frame 14, a slide groove is provided on the surface of the top frame 14 for limiting the sliding of the mounting plate 15, two symmetrical top rods are fixedly mounted on the inner side of the slide groove, the top rods slide through the mounting plate 15 to support the mounting plate 15, two symmetrically distributed slides 16 are fixedly mounted on the bottom of the mounting plate 15, a moving block 17 is slidably mounted on the inner side of the slide 16, a sleeve 18 is arranged on the inner side of the moving block 17, a screw 19 matching the sleeve 18 is rotatably mounted on the inner side of the slide 16, a discharge nozzle 20 is fixedly mounted on the bottom of the moving block 17, and the bottom of the discharge nozzle 20 The part can spray magnetic suspension on the crankshaft, and a rotating drum 21 is rotatably installed on the inner side of the mounting frame 3, and a prismatic rod 22 is slidably installed on the inner side of the rotating drum 21, and one end of the prismatic rod 22 is fixedly connected to the outer side of the splint 4, so that when the rotating drum 21 rotates, the splint 4 can be driven to rotate through the prismatic rod 22, and the output end of the driving motor 15 is fixedly connected to the outer side of the adjacent rotating drum 21, so that the driving motor 15 drives the rotating drum 21 to rotate, and a synchronous belt 23 is rotatably installed between the screw rod 3 19 and the adjacent rotating drum 21, so that when the rotating drum 21 rotates, the screw rod 3 19 is driven to rotate synchronously through the synchronous belt 23, and a push plate 24 is fixedly installed on the top of the mounting frame 3 located on the left side of the mounting box 2, and the outer side of the push plate 24 contacts with the left side of the slide 16, so that when the mounting frame 3 moves, the mounting plate 15 can be driven to move through the push plate 24 and the slide 16.

[0025] In this embodiment, when the mounting frame 3 on the left side of the mounting box 2 moves, the push plate 24 can push the slide 16 to move synchronously, and the slide 16 drives the mounting plate 15 to move rightward along the inner side of the top frame 14, so that when the clamping plate 4 contacts the end of the crankshaft, the discharge nozzle 20 is directly above the left end of the crankshaft, realizing automatic adjustment of the initial position of the discharge nozzle 20, which is suitable for crankshafts of more sizes. Subsequently, the staff starts the drive motor 15, so that the drive motor 15 drives the corresponding rotating drum 21 The rotating drum 21 drives the clamping plate 4 to rotate through the prismatic rod 22, so that the clamping plate 4 drives the crankshaft to rotate. At the same time, the rotating drum 21 drives the screw rod 3 19 through the synchronous belt 23, so that the screw rod 3 19 drives the moving block 17 to move rightward along the inner side of the slide 16 through the rotating drum 21, and the moving block 17 drives the discharge nozzle 20 to move synchronously, so that the discharge nozzle 20 sprays the magnetic suspension in the rotating state, thereby improving the uniformity of the magnetic suspension spraying, thereby achieving the effect of comprehensive spraying and improving the accuracy of flaw detection.

[0026] Example 3: Please refer to Figure 4-Figure 8, this embodiment further explains other embodiments. The transfer mechanism shown in the figure includes a baffle 25 fixedly mounted on the bottom of the moving block 17. The baffle 25 is located on the outside of the discharge nozzle 20. An elastic button 26 for opening and closing is arranged on the outside of the discharge nozzle 20. A through hole for installing the elastic button 26 is opened on the outside of the baffle 25. A limit frame 27 is fixedly mounted on the top of the mounting frame 3 on the right side of the mounting box 2. The limit frame 27, the elastic button 26 and the baffle 25 are on the same horizontal line, so that when the limit frame 27 contacts the elastic button 26, the discharge nozzle 20 is closed. The sleeve 18 is closed and provides a barrier for the movement of the stop frame 25. A plurality of card beads 28 are arranged on the outside of the sleeve 18 and are symmetrically distributed in the center. The card beads 28 are hemispherical in structure. A slide plate 29 is fixedly installed on the outside of the card beads 28. A sliding cavity is provided on the outside of the sleeve 18 for the slide plate 29 and the card beads 28 to limit the sliding movement, so as to facilitate the movement of the slide plate 29 and the card beads 28. A spring 30 is fixedly installed between the slide plate 29 and the inner side of the sliding cavity. A spherical groove is provided on the inner side of the moving block 17 for the card beads 28 to limit the sliding movement, so that the sleeve 18 can drive the moving block 17 to move along the outer side of the slide 16 through the card beads 28.

[0027] In this embodiment: when the screw rod 3 19 rotates, the screw rod 3 19 can drive the sleeve 18 to rotate, so that the sleeve 18 drives the multiple beads 28 to rotate synchronously, and the spring 30 uses the thrust of the beads 28 to drive the moving block 17 to move horizontally along the outer side of the slide 16 through the spherical groove on the moving block 17. When the moving block 17 approaches the mounting frame 3 on the right side of the mounting box 2, the stop frame 25 at the bottom of the moving block 17 contacts the limit frame 27, and the limit frame 27 can push the elastic button 26 to close the discharge nozzle 20, stop spraying the crankshaft, and limit The positioning frame 27 can resist the stop frame 25, so that the moving block 17 cannot move. At this time, due to the continuous rotation of the screw rod three 19, the sleeve 18 drives the card bead 28 to move along the spherical groove on the moving block 17, so that the card bead 28 moves from the spherical groove to the inner side of the moving block 17. The card bead 28 can compress the spring 30 through the slide plate 29, and the sleeve 18 can keep rotating. As a result, the screw rod three 19 and the rotating drum 21 can keep rotating, so that the splint 4 can drive the crankshaft to rotate, and the staff can perform a comprehensive flaw detection test on the crankshaft in a rotating state, thereby improving the convenience of flaw detection test.

[0028] Example 4: Please refer to Figure 1-Figure 6This embodiment further explains other embodiments. A protective frame 31 is fixedly installed on the top of the installation box 2 in the figure to prevent the magnetic suspension from splashing out. A limit block 35 is fixedly installed on the end of the prismatic rod 22 away from the clamping plate 4. A tension spring 36 is provided on the outer side of the prismatic rod 22. The tension spring 36 is fixedly installed between the limit block 35 and the inner side of the rotating drum 21, so that the clamping plate 4 can elastically clamp the two ends of the crankshaft. A storage box 37 is fixedly installed on the top of the top frame 14, and the storage box 37 is connected to the discharge nozzle 20 through two symmetrically distributed discharge pipes.

[0029] In the present embodiment: the staff can inject the magnetic suspension into the storage box 37, so that the storage box 37 conveys the magnetic suspension to the discharge nozzle 20 through two discharge pipes, and when the discharge nozzle 20 sprays the magnetic suspension on the crankshaft, the protective frame 31 on the top of the mounting box 2 can prevent the magnetic suspension from splashing, which is convenient for cleaning; when the splint 4 contacts the end of the crankshaft, the reaction force of the crankshaft on the splint 4 is utilized to make the splint 4 push the prismatic rod 22 to move along the inner side of the rotating drum 21, and the prismatic rod 22 stretches the tension spring 36 through the limit block 35, and utilizes the elasticity of the tension spring 36 to make the splint 4 elastically clamp the outer side of the crankshaft to prevent the splint 4 from exerting too much pressure on the crankshaft, thereby improving the safety of the crankshaft clamping and positioning.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] 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 crankshaft flaw detection device based on visual inspection, characterized in that: include: A box body (1) and a mounting box (2) fixedly mounted on the top of the box body (1); two mounting frames (3) are arranged on the top of the mounting box (2) and are symmetrically distributed; a clamping plate (4) is arranged on the corresponding sides of the two mounting frames (3); a driving motor (5) is fixedly mounted on the outside of the mounting frame (3) on the left side of the mounting box (2); and an ultraviolet camera (38) is arranged above the mounting box (2); Also includes: A material lifting mechanism, used for lifting the crankshaft above the installation box (2) to discharge the material, the material lifting mechanism being installed on the inner side of the installation box (2); A spray mechanism, used for fully spraying the crankshaft on the installation box (2), the spray mechanism being installed above the installation box (2); A material transfer mechanism is used to detect the rotation of a crankshaft on the mounting box (2), and the material transfer mechanism is mounted on the outside of the mounting frame (3).

2. The crankshaft flaw detection device based on visual inspection according to claim 1 is characterized in that: The material lifting mechanism comprises a screw rod (6) rotatably mounted on the inner side of the installation box (2), the screw rod (6) being a counter-rotating screw rod, screw rods (7) being fixedly mounted on both ends of the screw rod (6), a drive motor (8) being fixedly mounted on the inner side of the installation box (2), the output end of the drive motor (8) being fixedly connected to one end of the adjacent screw rod (7), a material lifting plate (9) being arranged above the installation box (2), and two symmetrically distributed V-shaped folding plates being rotatably mounted on the bottom of the material lifting plate (9) (10), four supporting rods (11) in a rectangular array are fixedly installed at the bottom of the lifting plate (9), a slider (12) is fixedly and rotatably installed between the two ends of the two V-shaped folding plates (10), and the two sliders (12) are respectively matched with the threads at the two ends of the screw rod (6), and a slider (13) is fixedly installed at the bottom of the mounting frame (3), and the slider (13) is slidably installed on the inner side of the mounting box (2), and the two sliders (13) are respectively matched with the two screw rods (7).

3. The crankshaft flaw detection device based on visual inspection according to claim 2 is characterized in that: The spray mechanism comprises a top frame (14) fixedly mounted on the top of the box body (1), the ultraviolet camera (38) fixedly mounted on the top inner wall of the top frame (14), a mounting plate (15) slidably mounted on the inner side of the top frame (14), two symmetrically distributed slides (16) fixedly mounted on the bottom of the mounting plate (15), a moving block (17) slidably mounted on the inner side of the slide (16), a sleeve (18) being arranged on the inner side of the moving block (17), a screw rod (19) cooperating with the sleeve (18) being rotatably mounted on the inner side of the slide (16), and a bottom of the moving block (17) being fixedly mounted. A discharge nozzle (20) is provided, a rotating drum (21) is rotatably mounted on the inner side of the mounting frame (3), a prismatic rod (22) is slidably mounted on the inner side of the rotating drum (21), one end of the prismatic rod (22) is fixedly connected to the outer side of the clamping plate (4), the output end of the driving motor 1 (5) is fixedly connected to the outer side of the adjacent rotating drum (21), a synchronous belt (23) is rotatably mounted between the screw rod 3 (19) and the adjacent rotating drum (21), a push plate (24) is fixedly mounted on the top of the mounting frame (3) located on the left side of the mounting box (2), and the outer side of the push plate (24) is in contact with the left side of the slide (16).

4. The crankshaft flaw detection device based on visual inspection according to claim 3 is characterized in that: The material transfer mechanism comprises a baffle frame (25) fixedly mounted on the bottom of the moving block (17), the baffle frame (25) being located on the outside of the material discharging nozzle (20), an elastic button (26) for opening and closing being arranged on the outside of the material discharging nozzle (20), a limit frame (27) being fixedly mounted on the top of the mounting frame (3) located on the right side of the mounting box (2), a plurality of clamping beads (28) being arranged on the outside of the sleeve (18) and distributed in a centrally symmetrical manner, a slide plate (29) being fixedly mounted on the outside of the clamping beads (28), a sliding cavity for limiting sliding of the slide plate (29) and the clamping beads (28) being provided on the outside of the sleeve (18), a spring (30) being fixedly mounted between the slide plate (29) and the inner side of the sliding cavity, and a spherical groove for limiting sliding of the clamping beads (28) being provided on the inner side of the moving block (17).

5. The crankshaft flaw detection device based on visual inspection according to claim 1 is characterized in that: A protective frame (31) is fixedly mounted on the top of the installation box (2).

6. The crankshaft flaw detection device based on visual inspection according to claim 1 is characterized in that: A protective plate (32) is fixedly mounted on the outer side of the clamping plate (4), and anti-slip grooves are provided on the outer side of the protective plate (32).

7. The crankshaft flaw detection device based on visual inspection according to claim 1 is characterized in that: A baffle (33) is fixedly mounted on one side of the mounting frame (3) close to the clamping plate (4).

8. The crankshaft flaw detection device based on visual inspection according to claim 2 is characterized in that: Two symmetrically distributed material receiving rollers (34) are rotatably mounted on the top of the material lifting plate (9), and the outer sides of the material receiving rollers (34) are made of rubber.

9. The crankshaft flaw detection device based on visual inspection according to claim 3 is characterized in that: A limit block (35) is fixedly mounted on one end of the prism rod (22) away from the clamping plate (4), a tension spring (36) is provided on the outside of the prism rod (22), and the tension spring (36) is fixedly mounted between the limit block (35) and the inner side of the rotating drum (21).

10. The crankshaft flaw detection device based on visual inspection according to claim 3 is characterized in that: A material storage box (37) is fixedly mounted on the top of the top frame (14), and the material storage box (37) is connected to the material discharge nozzle (20) via two symmetrically distributed material discharge pipes.

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