A flaw detection device for crankshaft production

Abstract

The application discloses a flaw detection equipment for crankshaft production and relates to the field of flaw detection equipment.The flaw detection equipment comprises a flaw detection host, a fixed box and an electric control host are installed on the flaw detection host, a moving box is slidably installed on the flaw detection host, and rotary seats are rotatably installed on the fixed box and the moving box; and the equipment further comprises a closed magnetic powder covering device and a coil cleaning device.It needs to be noted that in the process of detecting the crankshaft, the crankshaft is wrapped by combining the upper closed cover and the liquid filling cover, liquid is filled between the upper closed cover and the liquid filling cover through a plurality of liquid inlet pipes, the magnetic powder is covered, the covering effect of the magnetic powder is ensured, the waste of the magnetic powder liquid can be effectively avoided, the swinging wiping frame is driven to rotate through the pulling of the adaptive frame, the dynamic cleaning of the moving coil is realized, the cleaning effect of the moving coil is effectively ensured, and the precision of the crankshaft detection is effectively ensured.

Description

Technical Field

[0001] This invention relates to the field of flaw detection equipment technology, and in particular to a flaw detection device for crankshaft production. Background Technology

[0002] The crankshaft is the most important component in an engine. It bears the force transmitted from the connecting rod and converts it into torque, which is then output through the crankshaft to drive other accessories on the engine. The crankshaft is subjected to the combined effects of centrifugal force from the rotating mass, periodically changing gas inertial force, and reciprocating inertial force, resulting in bending and torsional loads. Therefore, the crankshaft requires sufficient strength and rigidity, and the journal surface must be wear-resistant, have uniform operation, and good balance. Flaw detection is a necessary means to ensure the reliability of the crankshaft and ensure its safe operation under extreme conditions. Magnetic particle testing utilizes the fact that when ferromagnetic materials are magnetized, the discontinuities cause local distortion of the magnetic field lines on and near the workpiece surface, creating a leakage magnetic field that attracts magnetic powder applied to the workpiece surface, forming magnetic traces visible to the naked eye under suitable lighting, thus revealing the location, shape, and size of the discontinuities.

[0003] However, during the flaw detection process, the magnetic particle inspection machine sprays the magnetic powder liquid onto the crankshaft. Therefore, when the magnetic powder liquid comes into contact with the crankshaft during the spraying process, a large amount of magnetic powder liquid is splashed out, causing the entire magnetic particle inspection machine to be heavily contaminated. Furthermore, the sprayed liquid covers a large area of ​​the moving coil, disrupting the uniform distribution of the magnetic field. This results in a weakening of the leakage magnetic field strength when the workpiece is magnetized, which directly reduces the flaw detection sensitivity. At the same time, the coarse spraying method wastes a large amount of magnetic powder liquid when the crankshaft is thoroughly sprayed. Summary of the Invention

[0004] The purpose of this invention is to provide a flaw detection device for crankshaft production, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A flaw detection device for crankshaft production includes a flaw detection main unit, a fixed box and an electrical control main unit mounted on the flaw detection main unit, a movable box slidably mounted on the flaw detection main unit, a rotating seat rotatably mounted on both the fixed box and the movable box, a clamping seat mounted on the side of each of the two rotating seats that are close to each other, and a movable coil movably mounted on both the fixed box and the movable box, and a plurality of liquid inlet pipes mounted on the flaw detection main unit;

[0007] It also includes a sealed magnetic powder covering device for sealing the crankshaft. Multiple liquid inlet pipes are connected to the sealed magnetic powder covering device. The sealed magnetic powder covering device includes an upper sealing cover and a liquid filling cover. Both the upper sealing cover and the liquid filling cover are movably mounted on one side of the movable box. Multiple liquid inlet pipes are connected to the liquid filling cover. V-shaped extrusion frames are mounted on both the upper sealing cover and the liquid filling cover. A moving coil moves and extrudes the two V-shaped extrusion frames to drive the upper sealing cover and the liquid filling cover to seal. A lifting frame is mounted on one side of the liquid filling cover, and a synchronous lifting frame is slidably mounted on the other side of the liquid filling cover. The lifting frame and the synchronous lifting frame are slidably mounted on the movable box and the fixed box, respectively.

[0008] It also includes a coil cleaning device, which is installed on the two movable coils and is used to clean the movable coils. The coil cleaning device includes four U-shaped cleaning frames, with each pair of U-shaped cleaning frames fitted onto one of the movable coils. Two closed cleaning plates are rotatably installed on one side of each U-shaped cleaning frame, and wiping strips are installed on both the U-shaped cleaning frame and the two closed cleaning plates.

[0009] Furthermore, in a preferred embodiment of the present invention, the sealed magnetic powder covering device further includes a plurality of elastic frames, all of which are movably mounted on the upper sealing cover, and a cleaning scraper is installed on the bottom side of the elastic frame;

[0010] A support spring is installed on the elastic frame, and the support spring is mounted on the upper enclosure.

[0011] Furthermore, in a preferred embodiment of the present invention, both the fixed box and the movable box are provided with lifting holes, and the lifting frame and the synchronous lifting frame are respectively movably installed in the two lifting holes;

[0012] A push spring is installed on the inner wall of one of the lifting holes located on the movable box, and the push spring is mounted on the lifting frame.

[0013] Furthermore, in a preferred embodiment of the present invention, a rotating support frame is rotatably mounted on one side of the upper enclosure, and a lifting groove is provided on one side of the movable box, with the rotating support frame slidably mounted in the lifting groove;

[0014] A telescopic spring is installed on the bottom side of the rotating support frame, and the telescopic spring is installed on the bottom inner wall of the lifting groove.

[0015] Furthermore, in a preferred embodiment of the present invention, a rotary mounting groove is provided on the upper enclosure, a support shaft is rotatably mounted in the rotary mounting groove, a rotary support frame is mounted on the support shaft, and a placement baffle is installed on one side of the upper enclosure to limit the position of the upper enclosure.

[0016] A reinforcing torsion spring is installed in the rotary mounting slot, and the reinforcing torsion spring is mounted on the support shaft.

[0017] Furthermore, in a preferred embodiment of the present invention, mounting side seats are rotatably mounted on both sides of the closed cleaning plate, and the mounting side seats are mounted on the U-shaped cleaning frame;

[0018] The mounting side seat has a mounting slot, and a rotating shaft is rotatably mounted in the mounting slot. The rotating shaft is mounted on the closed cleaning plate, and a rotating torsion spring is mounted on the rotating shaft. The rotating torsion spring is mounted on the inner wall of the mounting slot.

[0019] Furthermore, in a preferred embodiment of the present invention, a U-shaped pusher is movably mounted on the U-shaped cleaning frame, and the U-shaped pusher is used to push the two closed cleaning plates to rotate and open;

[0020] A pusher is slidably mounted on the U-shaped cleaning frame, the U-shaped pusher is mounted on the pusher, and a retraction spring is installed between the pusher and the U-shaped cleaning frame.

[0021] Furthermore, in a preferred embodiment of the present invention, a synchronous wiping device is installed on the coil cleaning device, the synchronous wiping device being used to drive the coil cleaning device to clean the two moving coils;

[0022] The synchronous wiping device includes four swing wiping frames. Two of the swing wiping frames located on the same side are rotatably mounted on the fixed box and the movable box, respectively. A pull-out adapter is slidably mounted on the swing wiping frame, and the pull-out adapter is mounted on the U-shaped cleaning frame.

[0023] Furthermore, in a preferred embodiment of the present invention, the synchronous wiping device further includes two central shafts, which are respectively mounted on the fixed box and the movable box;

[0024] Both of the two swing wiping racks located on the same side are rotatably mounted on the central shaft, and each of the two swing wiping racks located on the same side is equipped with a drive gear, which is rotatably mounted on the central shaft.

[0025] Furthermore, in a preferred embodiment of the present invention, both sides of the lifting frame and the synchronous lifting frame are equipped with synchronous racks, and the four synchronous racks respectively mesh with the four drive gears.

[0026] The beneficial effects of the flaw detection equipment for crankshaft production proposed in this invention are:

[0027] In this invention, by setting up a closed magnetic powder covering device, during the flaw detection process of the crankshaft, the upper sealing cover and the liquid filling cover are combined to wrap the crankshaft. At this time, liquid is injected between the upper sealing cover and the liquid filling cover through multiple liquid inlet pipes to cover the magnetic powder. Simultaneously, the rotating seat drives the crankshaft to rotate, causing multiple cleaning scrapers to scrape and clean the surface of the crankshaft. In addition, the cleaning scrapers move against the crankshaft during the rotation of the crankshaft. The cleaning scrapers move through the elastic frame, causing the support spring to be stressed. This can achieve the purpose of synchronous cleaning of the crankshaft during the magnetic powder covering process, ensuring the coverage effect of the magnetic powder, and effectively avoiding the waste of magnetic powder liquid and the problem of contamination of equipment.

[0028] Furthermore, in this invention, by setting up a coil cleaning device, when the moving coil is in operation, the moving coil rotates against the two closed cleaning plates to open the closed cleaning plates; when the moving coil is reset, the moving coil squeezes the pusher to move, the pusher pushes the U-shaped pusher to move, and causes the return spring to be stretched by force. At this time, the U-shaped pusher no longer pushes the two closed cleaning plates, and under the rebound force of the rotation torsion spring, the two closed cleaning plates rebound and wrap the moving coil, thereby achieving the purpose of automatically wrapping the moving coil.

[0029] Furthermore, in this invention, by setting up a synchronous wiping device, during the lifting and lowering process of the liquid filling hood, the liquid filling hood moves vertically through the lifting frame and the synchronous lifting frame, so that the lifting frame and the synchronous lifting frame drive four synchronous racks to move vertically in sync. The movement of the synchronous racks drives the drive gear to rotate, and the drive gear drives the swing wiping frame to move, so that the swing wiping frame drives the U-shaped cleaning frame to rotate through the pull-out adapter frame, thereby achieving the purpose of dynamic cleaning of the moving coil, effectively ensuring the cleaning effect of the moving coil, and thus effectively ensuring the accuracy of crankshaft flaw detection. Attached Figure Description

[0030] Figure 1 This is a three-dimensional structural diagram of a flaw detection device for crankshaft production provided in an embodiment of the present invention;

[0031] Figure 2 This is a schematic diagram illustrating the connection between the upper enclosure and the swing wiping frame of a flaw detection equipment for crankshaft production, as provided in an embodiment of the present invention.

[0032] Figure 3 This is a partial structural diagram illustrating the connection between the upper enclosure and the U-shaped cleaning frame of a flaw detection equipment for crankshaft production, as provided in an embodiment of the present invention.

[0033] Figure 4 This is a partial structural diagram illustrating the connection between the upper enclosure and the rotating support frame of a flaw detection equipment for crankshaft production, as provided in an embodiment of the present invention.

[0034] Figure 5 This is a partial cross-sectional view of the connection between the upper enclosure and the cleaning scraper of a flaw detection equipment for crankshaft production, as provided in an embodiment of the present invention.

[0035] Figure 6 This is a partial cross-sectional view of the connection between the sealing cover and the rotating support frame of a flaw detection equipment for crankshaft production, as provided in an embodiment of the present invention.

[0036] Figure 7 This is a partial structural diagram illustrating the connection between a U-shaped cleaning frame and a closed cleaning plate, etc., in a flaw detection equipment for crankshaft production, provided by an embodiment of the present invention.

[0037] Figure 8 This is a partial cross-sectional view of the connection between the enclosed cleaning plate and the mounting side seat of a flaw detection equipment for crankshaft production, as provided in an embodiment of the present invention.

[0038] Figure 9 This invention provides a partial cross-sectional view of the connection between the drive gear and the central shaft of a flaw detection device used in crankshaft production, as provided in an embodiment of the invention.

[0039] Figure 10 This is a partial structural diagram illustrating the connection between the swing wiping frame and the drive gear, etc., of a flaw detection equipment for crankshaft production, as provided in an embodiment of the present invention.

[0040] In the diagram: 1-Flaw detection main unit; 2-Fixed box; 3-Moving box; 4-Rotating seat; 5-Clamping seat; 6-Enclosed magnetic powder covering device; 601-Upper enclosed cover; 602-Liquid filling cover; 603-Lifting hole; 604-Rotating support frame; 605-Lifting frame; 606-V-type extrusion frame; 607-Push-down spring; 608-Lifting groove; 609-Elastic frame; 610-Cleaning scraper; 611-Support spring; 612-Support shaft; 613-Placement baffle; 614-Rotary mounting groove; 615-Reinforced torsion spring; 616-Synchronous lifting... Lowering frame; 617-Telescopic spring; 7-Coil cleaning device; 701-U-shaped cleaning frame; 702-Enclosed cleaning plate; 703-Wiping strip; 704-Mounting side seat; 705-Push-out frame; 706-U-shaped push frame; 707-Retraction spring; 708-Mounting swivel; 709-Rotating shaft; 710-Rotating torsion spring; 8-Synchronous wiping device; 801-Swinging wiping frame; 802-Pull-out adapter frame; 803-Drive gear; 804-Central shaft; 805-Synchronous rack; 9-Electrical control host; 10-Moving coil; 11-Liquid inlet pipe. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0042] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0043] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0044] Furthermore, in the description of this invention, it should be noted that the terms "center," "upper," "lower," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0045] Furthermore, terms such as "horizontal," "vertical," and "perpendicular" do not imply that components must be absolutely vertical, but rather that they can be slightly tilted. For example, "vertical" simply means that its direction is more vertical relative to "horizontal," not that the structure must be completely vertical, but can be slightly tilted.

[0046] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0047] Please refer to the attached instruction manual. Figure 1 The present invention provides a flaw detection device for crankshaft production, which includes a flaw detection host 1, a fixed box 2 and an electrical control host 9 mounted on the flaw detection host 1, a movable box 3 slidably mounted on the flaw detection host 1, a rotating seat 4 rotatably mounted on both the fixed box 2 and the movable box 3, a clamping seat 5 mounted on the side of the two rotating seats 4 that are close to each other, and a movable coil 10 movably mounted on both the fixed box 2 and the movable box 3. A plurality of liquid inlet pipes 11 are mounted on the flaw detection host 1.

[0048] Further, please refer to the appendix to the instruction manual. Figures 2-6The present invention provides a flaw detection device for crankshaft production, which further includes a sealed magnetic powder covering device 6 for sealing the crankshaft. Multiple liquid inlet pipes 11 are connected to the sealed magnetic powder covering device 6. Specifically, the sealed magnetic powder covering device 6 includes an upper sealing cover 601 and a liquid filling cover 602. Both the upper sealing cover 601 and the liquid filling cover 602 are movably mounted on one side of a movable box 3. Multiple liquid inlet pipes 11 are connected to the liquid filling cover 602. V-shaped extrusion frames 606 are installed on both the upper sealing cover 601 and the liquid filling cover 602. A moving coil 10 moves and extrudes the two V-shaped extrusion frames 606 to drive the upper sealing cover 601 and the liquid filling cover 602 to seal. A lifting frame 605 is installed on one side of the liquid filling cover 602, and a synchronous lifting frame 616 is slidably installed on the other side of the liquid filling cover 602. The lifting frame 605 and the synchronous lifting frame 616 are slidably mounted on the movable box 3 and the fixed box 2, respectively.

[0049] It should be noted that, in this embodiment of the invention, during the flaw detection of the crankshaft, the moving coil 10 is activated, causing the moving coil 10 to squeeze the two V-shaped extrusion frames 606 to move, thereby driving the upper sealing cover 601 and the liquid filling cover 602 to merge and wrap the crankshaft. At this time, liquid is injected between the upper sealing cover 601 and the liquid filling cover 602 through multiple liquid inlet pipes 11 to cover the magnetic powder and ensure the coverage effect of the magnetic powder.

[0050] More specifically, in this embodiment of the invention, a coil cleaning device 7 is also included. The coil cleaning device 7 is installed on two movable coils 10 and is used to clean the movable coils 10. The coil cleaning device 7 includes four U-shaped cleaning frames 701, with each pair of U-shaped cleaning frames 701 sleeved on one movable coil 10. Two closed cleaning plates 702 are rotatably mounted on one side of each U-shaped cleaning frame 701, and wiping strips 703 are installed on both the U-shaped cleaning frame 701 and the two closed cleaning plates 702. It should be noted that in this embodiment of the invention, when the movable coil 10 is reset, the movable coil 10 pushes the ejector frame 705 to move. The ejector frame 705 pushes the U-shaped pusher frame 706 to move, and the return spring 707 is stretched by force. At this time, the U-shaped pusher frame 706 no longer pushes the two closed cleaning plates 702, and under the rebound force of the rotating torsion spring 710, the two closed cleaning plates 702 rebound and wrap around the movable coil 10, achieving the purpose of automatically wrapping the movable coil 10.

[0051] Please continue to refer to the instruction manual appendix. Figures 2-6Furthermore, the flaw detection equipment for crankshaft production provided in this embodiment of the invention includes a sealed magnetic powder covering device 6, which further comprises multiple elastic frames 609. These elastic frames 609 are movably mounted on an upper sealed cover 601. A cleaning scraper 610 is mounted on the bottom side of each elastic frame 609. A support spring 611 is mounted on each elastic frame 609 and is also mounted on the upper sealed cover 601. It should be noted that in this embodiment of the invention, the rotating seat 4 drives the crankshaft to rotate, causing the multiple cleaning scrapers 610 to scrape and clean the surface of the crankshaft. During the crankshaft rotation, the scrapers 610 move against the support spring 611. The cleaning scrapers 610 move via the elastic frames 609, causing the support spring 611 to be stressed. This achieves the purpose of synchronous cleaning of the crankshaft during the magnetic powder covering process.

[0052] More specifically, in this embodiment of the invention, both the fixed box 2 and the movable box 3 are provided with lifting holes 603, and the lifting frame 605 and the synchronous lifting frame 616 are respectively movably installed in the two lifting holes 603; in addition, a push spring 607 is installed on the inner wall of one of the lifting holes 603 on the movable box 3, and the push spring 607 is installed on the lifting frame 605. It should be noted that, in this embodiment of the invention, when the liquid filling cover 602 moves vertically, it moves vertically within the two lifting holes 603 through the lifting frame 605 and the synchronous lifting frame 616, causing the push spring 607 to be stressed. Therefore, under the rebound force of the push spring 607, it can help the liquid filling cover 602 to return to its original position. At the same time, when the liquid filling cover 602 moves laterally, it slides horizontally on the synchronous lifting frame 616. Therefore, the movement of the synchronous lifting frame 616 will not affect the lateral or longitudinal movement of the liquid filling cover 602.

[0053] More specifically, in this embodiment of the invention, a rotating support frame 604 is rotatably mounted on one side of the upper enclosure 601, and a lifting groove 608 is provided on one side of the movable box 3. The rotating support frame 604 is slidably mounted in the lifting groove 608. In addition, a telescopic spring 617 is installed on the bottom side of the rotating support frame 604, and the telescopic spring 617 is installed on the bottom inner wall of the lifting groove 608. It should be noted that, in this embodiment of the invention, when the upper enclosure 601 moves vertically, the rotating support frame 604 moves vertically within the lifting groove 608, causing the telescopic spring 617 to be stressed. Therefore, under the rebound force of the telescopic spring 617, the upper enclosure 601 can be helped to return to its original position.

[0054] Please refer to the attached instruction manual. Figures 1-10More specifically, in this embodiment of the invention, a rotary mounting groove 614 is provided on the upper enclosure 601, a support shaft 612 is rotatably mounted in the rotary mounting groove 614, a rotating support frame 604 is mounted on the support shaft 612, and a placement baffle 613 is installed on one side of the upper enclosure 601. The placement baffle 613 is used to limit the position of the upper enclosure 601.

[0055] Furthermore, a reinforcing torsion spring 615 is installed in the rotary mounting groove 614, and the reinforcing torsion spring 615 is mounted on the support shaft 612. It should be noted that, in this embodiment of the invention, when installing the crankshaft, the upper sealing cover 601 is rotated, causing the upper sealing cover 601 to rotate within the rotary mounting groove 614 via the support shaft 612, thereby causing the reinforcing torsion spring 615 to be subjected to force. After the crankshaft is installed, the upper sealing cover 601 is reset by the rebound force of the reinforcing torsion spring 615, and is then secured to the rotating support frame 604 by the placement baffle 613, thus achieving the automatic reset of the upper sealing cover 601.

[0056] Further, please refer to the appendix to the instruction manual. Figures 2-3 and Figures 7-8 This invention provides a flaw detection device for crankshaft production. A sealing cleaning plate 702 has mounting side seats 704 rotatably mounted on both sides, and the mounting side seats 704 are mounted on a U-shaped cleaning frame 701. Furthermore, the mounting side seats 704 have mounting slots 708, and a rotating shaft 709 is rotatably mounted within the mounting slots 708. The rotating shaft 709 is mounted on the sealing cleaning plate 702, and a rotating torsion spring 710 is mounted on the rotating shaft 709, which is installed on the inner wall of the mounting slots 708. It should be noted that in this embodiment, when the sealing cleaning plate 702 rotates, it rotates within the mounting slots 708 via the rotating shaft 709, causing the rotating torsion spring 710 to be stressed. Therefore, the rebound force of the rotating torsion spring 710 helps the sealing cleaning plate 702 to reset.

[0057] More specifically, in this embodiment of the invention, a U-shaped pusher 706 is movably mounted on the U-shaped cleaning frame 701. The U-shaped pusher 706 is used to push the two closed cleaning plates 702 to rotate and open. Additionally, a push-out frame 705 is slidably mounted on the U-shaped cleaning frame 701, and the U-shaped pusher 706 is mounted on the push-out frame 705. A return spring 707 is installed between the push-out frame 705 and the U-shaped cleaning frame 701. It should be noted that in this embodiment of the invention, when the moving coil 10 moves out of the U-shaped cleaning frame 701, the return force of the return spring 707 causes the pusher 705 to drive the U-shaped pusher 706 to move into the U-shaped cleaning frame 701. The U-shaped pusher 706 pushes the two closed cleaning plates 702 to rotate and open, facilitating the moving coil 10's return to its original position and allowing it to enter the U-shaped cleaning frame 701.

[0058] Please refer to the instruction manual attached. Figures 2-3 and Figures 9-10 Furthermore, in an embodiment of the present invention, a flaw detection device for crankshaft production is provided, wherein a synchronous wiping device 8 is installed on the coil cleaning device 7, and the synchronous wiping device 8 is used to drive the coil cleaning device 7 to clean the two moving coils 10.

[0059] Specifically, the synchronous wiping device 8 includes four swing wiping frames 801. Two swing wiping frames 801 located on the same side are rotatably mounted on the fixed box 2 and the movable box 3, respectively. A pull-out adapter 802 is slidably mounted on the swing wiping frame 801, and the pull-out adapter 802 is mounted on the U-shaped cleaning frame 701. It should be noted that, in this embodiment of the invention, during the lifting and lowering process of the liquid filling hood 602, the liquid filling hood 602 moves vertically through the lifting frame 605 and the synchronous lifting frame 616, so that the lifting frame 605 and the synchronous lifting frame 616 drive the four synchronous racks 805 to move vertically synchronously. The movement of the synchronous racks 805 drives the drive gear 803 to rotate, and the drive gear 803 drives the swing wiping frame 801 to move, so that the swing wiping frame 801 drives the U-shaped cleaning frame 701 to rotate through the pull-out adapter 802, thereby achieving the purpose of dynamic cleaning of the moving coil 10, effectively ensuring the cleaning effect of the moving coil 10, and thus effectively ensuring the accuracy of crankshaft flaw detection.

[0060] More specifically, in this embodiment of the invention, the synchronous wiping device 8 further includes two central shafts 804, which are respectively mounted on the fixed box 2 and the movable box 3. In addition, two swing wiping frames 801 located on the same side are rotatably mounted on the central shafts 804, and each of the two swing wiping frames 801 located on the same side is equipped with a drive gear 803, which is rotatably mounted on the central shafts 804. It should be noted that, in this embodiment of the invention, when the drive gear 803 rotates, it drives the swing wiping frames 801 to rotate on the central shafts 804, thereby achieving the purpose of driving the U-shaped cleaning frame 701 to rotate.

[0061] Please continue to refer to the instruction manual appendix. Figures 2-3 and Figures 9-10 More specifically, in this embodiment of the invention, both sides of the lifting frame 605 and the synchronous lifting frame 616 are equipped with synchronous racks 805, and the four synchronous racks 805 mesh with four drive gears 803 respectively. It should be noted that, in this embodiment of the invention, during the vertical movement of the liquid filling cover 602, the synchronous racks 805 move vertically and drive the drive gears 803 to rotate, thereby causing the swing wiping frame 801 to drive the U-shaped cleaning frame 701 to rotate through the pull-out adapter frame 802, thus thoroughly cleaning the moving coil 10.

[0062] In summary, the working principle of the flaw detection equipment for crankshaft production provided in this embodiment of the invention is as follows:

[0063] During the flaw detection process of the crankshaft, the moving housing 3 drives the rotating seat 4 to move the pressing seat 5 to press the crankshaft against the fixed housing 2. Then, the moving coil 10 is activated, causing the moving coil 10 to press the two V-shaped pressing frames 606 to move, thereby causing the upper sealing cover 601 and the liquid filling cover 602 to merge and wrap the crankshaft. At this time, liquid is added between the upper sealing cover 601 and the liquid filling cover 602 through multiple liquid inlet pipes 11 to cover the magnetic powder. At the same time, the rotating seat 4 drives the crankshaft to rotate, causing multiple cleaning scrapers 610 to scrape and clean the surface of the crankshaft. During the rotation of the crankshaft, the cleaning scrapers 610 are pushed and moved. The cleaning scrapers 610 are moved through the elastic frame 609, and the supporting spring 611 is stressed. This can achieve the purpose of synchronous cleaning of the crankshaft during the magnetic powder covering process, ensuring the magnetic powder covering effect.

[0064] Furthermore, when the movable coil 10 moves, it rotates against the two closed cleaning plates 702, thereby opening the closed cleaning plates 702. The closed cleaning plates 702 rotate within the mounting slot 708 via the rotating shaft 709, causing the rotating torsion spring 710 to be stressed. Additionally, when the movable coil 10 disengages from the U-shaped cleaning frame 701, the return force of the return spring 707 causes the ejector frame 705 to move the U-shaped pusher frame 706 into the U-shaped cleaning frame 701. Similarly, when the movable coil 10 resets, it presses the ejector frame 705 to move, which in turn pushes the U-shaped pusher frame 706, causing the return spring 707 to be stretched. At this point, the U-shaped pusher frame 706 no longer pushes the two closed cleaning plates 702, and under the rebound force of the rotating torsion spring 710, the two closed cleaning plates 702 rebound, wrapping the movable coil 10, thus achieving the purpose of automatically wrapping the movable coil 10.

[0065] Furthermore, during the lifting and lowering of the liquid filling hood 602, the liquid filling hood 602 moves vertically via the lifting frame 605 and the synchronous lifting frame 616, causing the lifting frame 605 and the synchronous lifting frame 616 to drive the four synchronous racks 805 to move vertically in sync. The movement of the synchronous racks 805 drives the drive gear 803 to rotate, and the drive gear 803 drives the swing wiping frame 801 to move, causing the swing wiping frame 801 to drive the U-shaped cleaning frame 701 to rotate via the pull-out adapter frame 802, thus thoroughly cleaning the moving coil 10 and ensuring the cleaning effect.

[0066] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A flaw detection device for crankshaft production, characterized in that, It includes a flaw detection host, on which a fixed box and an electrical control host are installed. A movable box is slidably installed on the flaw detection host. Rotating seats are rotatably installed on both the fixed box and the movable box. A clamping seat is installed on the side of the two rotating seats that are close to each other. A movable coil is movably installed on both the fixed box and the movable box. Multiple liquid inlet pipes are installed on the flaw detection host. It also includes a sealed magnetic powder covering device for sealing the crankshaft. Multiple liquid inlet pipes are connected to the sealed magnetic powder covering device. The sealed magnetic powder covering device includes an upper sealing cover and a liquid filling cover. Both the upper sealing cover and the liquid filling cover are movably mounted on one side of the movable box. Multiple liquid inlet pipes are connected to the liquid filling cover. V-shaped extrusion frames are mounted on both the upper sealing cover and the liquid filling cover. A moving coil moves and extrudes the two V-shaped extrusion frames to drive the upper sealing cover and the liquid filling cover to seal. A lifting frame is mounted on one side of the liquid filling cover, and a synchronous lifting frame is slidably mounted on the other side of the liquid filling cover. The lifting frame and the synchronous lifting frame are slidably mounted on the movable box and the fixed box, respectively. It also includes a coil cleaning device, which is installed on the two movable coils and is used to clean the movable coils. The coil cleaning device includes four U-shaped cleaning frames, with each pair of U-shaped cleaning frames fitted onto one of the movable coils. Two closed cleaning plates are rotatably installed on one side of each U-shaped cleaning frame, and wiping strips are installed on both the U-shaped cleaning frame and the two closed cleaning plates.

2. The flaw detection equipment for crankshaft production according to claim 1, characterized in that, The closed magnetic powder covering device also includes multiple elastic frames, all of which are movably mounted on the upper closed cover, and a cleaning scraper is installed on the bottom side of each elastic frame; A support spring is installed on the elastic frame, and the support spring is mounted on the upper enclosure.

3. The flaw detection equipment for crankshaft production according to claim 2, characterized in that, Both the fixed box and the mobile box are provided with lifting holes, and the lifting frame and the synchronous lifting frame are respectively movably installed in the two lifting holes; A push spring is installed on the inner wall of one of the lifting holes located on the movable box, and the push spring is mounted on the lifting frame.

4. The flaw detection equipment for crankshaft production according to claim 3, characterized in that, A rotating support frame is rotatably mounted on one side of the upper closed cover, and a lifting groove is provided on one side of the movable box. The rotating support frame is slidably installed in the lifting groove. A telescopic spring is installed on the bottom side of the rotating support frame, and the telescopic spring is installed on the bottom inner wall of the lifting groove.

5. The flaw detection equipment for crankshaft production according to claim 4, characterized in that, The upper enclosure is provided with a rotary mounting groove, in which a support shaft is rotatably mounted. The rotating support frame is mounted on the support shaft. A placement baffle is installed on one side of the upper enclosure to limit the position of the upper enclosure. A reinforcing torsion spring is installed in the rotary mounting slot, and the reinforcing torsion spring is mounted on the support shaft.

6. The flaw detection equipment for crankshaft production according to claim 1, characterized in that, Both sides of the enclosed cleaning plate are rotatably mounted with mounting seats, which are installed on the U-shaped cleaning frame. The mounting side seat has a mounting slot, and a rotating shaft is rotatably mounted in the mounting slot. The rotating shaft is mounted on the closed cleaning plate, and a rotating torsion spring is mounted on the rotating shaft. The rotating torsion spring is mounted on the inner wall of the mounting slot.

7. A flaw detection device for crankshaft production according to claim 6, characterized in that, A U-shaped pusher is movably mounted on the U-shaped cleaning frame, and the U-shaped pusher is used to push the two closed cleaning plates to rotate and open. A pusher is slidably mounted on the U-shaped cleaning frame, the U-shaped pusher is mounted on the pusher, and a retraction spring is installed between the pusher and the U-shaped cleaning frame.

8. The flaw detection equipment for crankshaft production according to claim 1, characterized in that, The coil cleaning device is equipped with a synchronous wiping device, which is used to drive the coil cleaning device to clean the two moving coils; The synchronous wiping device includes four swing wiping frames. Two of the swing wiping frames located on the same side are rotatably mounted on the fixed box and the movable box, respectively. A pull-out adapter is slidably mounted on the swing wiping frame, and the pull-out adapter is mounted on the U-shaped cleaning frame.

9. A flaw detection device for crankshaft production according to claim 8, characterized in that, The synchronous wiping device also includes two central shafts, which are respectively mounted on the fixed box and the movable box; Both of the two swing wiping racks located on the same side are rotatably mounted on the central shaft, and each of the two swing wiping racks located on the same side is equipped with a drive gear, which is rotatably mounted on the central shaft.

10. A flaw detection device for crankshaft production according to claim 9, characterized in that, Both sides of the lifting frame and the synchronous lifting frame are equipped with synchronous racks, and the four synchronous racks mesh with the four drive gears respectively.

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