A magnetic particle flaw detection device for detecting blade castings

Abstract

The present invention is applicable to the technical field of flaw detection for blade castings, and provides a magnetic particle flaw detection device for blade casting detection, including a concave support plate and a magnetizing device, as well as a mounting frame fixed to the upper end of the concave support plate. It further includes: a hinge ear provided at the upper end of the mounting frame, and a concave hinge block hinged to the hinge ear. An angle adjustment mechanism is provided on the mounting frame, and the angle adjustment mechanism is used to drive the concave hinge block to rotate on the hinge ear; a rotating sleeve is rotatably connected to the concave hinge block, and a plurality of support rods are slidably connected to the rotating sleeve in a circumferential and uniform manner, and positioning grooves are provided on each of the plurality of support rods. By supporting the side wall of the blade casting with a plurality of telescopic support rods and alternately clamping the inner wall of the middle through hole of the blade casting with a plurality of arc-shaped inner wall clamping rods, it is possible to achieve clamping of two different parts by placing the blade casting once, which is convenient for magnetic particle flaw detection of the inside and outside of the blade casting.

Description

Technical Field

[0001] The present invention belongs to the technical field of flaw detection of blade castings, and particularly relates to a magnetic particle flaw detection device for blade casting detection. Background Art

[0002] A blade casting refers to a blade manufactured by a casting process. After selecting appropriate raw materials, melting and purification treatment, the blade casting is poured into a mold for casting and forming.

[0003] After the blade casting is completed, in order to ensure its stable performance, a magnetic particle flaw detection device is required to detect the blade casting. The basic principle of magnetic particle flaw detection of blade castings is that after ferromagnetic materials are magnetized, due to the existence of discontinuities, local distortion of the magnetic field lines on the surface and near-surface of the workpiece occurs, resulting in a leakage magnetic field. These leakage magnetic fields will adsorb the magnetic powder applied to the surface of the workpiece, forming visible magnetic marks. By observing these magnetic marks, the location, shape, and size of the defects can be determined.

[0004] The blade casting includes a bushing part and a blade part. During the magnetic particle flaw detection of the blade casting, the casting needs to be fixed on the device to avoid shaking of the casting during the spraying of the magnetic powder suspension and detection. When fixing the blade casting, it is inevitable that the fixing jaws will come into contact with the blade casting. The position where the fixing jaws contact the blade casting will affect the flow of the magnetic powder suspension, making it impossible for the magnetic powder suspension to completely cover the blade casting, and thus there are flaw detection dead angles. Summary of the Invention

[0005] The purpose of the embodiment of the present invention is to provide a magnetic particle flaw detection device for blade casting detection, aiming to solve the problem that when fixing the blade casting, it is inevitable that the fixing jaws will come into contact with the blade casting, and the position where the fixing jaws contact the blade casting will affect the flow of the magnetic powder suspension, making it impossible for the magnetic powder suspension to completely cover the blade casting, resulting in flaw detection dead angles.

[0006] The present invention is implemented as follows. A magnetic particle flaw detection device for blade castings includes a concave support plate and a magnetizing device, as well as a mounting frame fixed to the upper end of the concave support plate. It further includes: a hinge ear provided at the upper end of the mounting frame, and a concave hinge block hinged to the hinge ear. An angle adjustment mechanism is provided on the mounting frame, and the angle adjustment mechanism is used to drive the concave hinge block to rotate on the hinge ear; a rotating sleeve is rotatably connected to the concave hinge block, and a plurality of support rods are annularly and slidably connected to the rotating sleeve. Positioning grooves are provided on each of the plurality of support rods; a transmission component is provided on the concave hinge block. When the concave hinge block rotates upward, the transmission component drives the plurality of support rods to extend from the end of the rotating sleeve. When the concave hinge block rotates horizontally, the transmission component drives the plurality of support rods to retract into the rotating sleeve; a plurality of guide grooves are annularly and evenly provided on the inner wall of the rotating sleeve, and arc-shaped inner wall clamping rods are hinged in each of the plurality of guide grooves. An inner wall clamping mechanism is provided on the rotating sleeve, and the inner wall clamping mechanism is used to drive the plurality of arc-shaped inner wall clamping rods to rotate synchronously towards or away from each other; a rotating mechanism is provided on the mounting frame, and the rotating mechanism is used to drive the rotating sleeve to rotate, and the magnetizing device is used to magnetize the blade casting.

[0007] In a further technical solution, the inner wall clamping mechanism includes guide blocks slidably connected in each of the plurality of guide grooves. Connecting rods are hinged to each of the plurality of guide blocks, and the ends of the plurality of connecting rods are respectively hinged to the plurality of arc-shaped inner wall clamping rods. A synchronous frame is slidably connected to the rotating sleeve along the axial direction of the rotating sleeve. The synchronous frame is fixedly connected to each of the plurality of guide blocks at the same time. A transmission shaft is fixed to one end of the synchronous frame close to the concave hinge block. A pushing component is provided on the mounting frame, and the pushing component is used to drive the transmission shaft to move along the axial direction of the rotating sleeve.

[0008] In a further technical solution, the pushing component includes a tension spring fixed to the transmission shaft. The tension spring is fixed in the rotating sleeve. A top plate is slidably connected to the mounting frame. One end of the top plate close to the transmission shaft is semicircular. A cross bar is fixed to the other end of the top plate. Two first telescopic cylinders are fixed to the concave support plate, and the telescopic ends of the two first telescopic cylinders are respectively fixed to both ends of the cross bar.

[0009] In a further technical solution, the transmission shaft includes a sliding shaft and a fixed sleeve. The fixed sleeve is fixed to the synchronous frame. The sliding shaft is slidably connected in the fixed sleeve. A compression spring is fixed in the fixed sleeve. The end of the compression spring is fixedly connected to one end of the sliding shaft. The other end of the sliding shaft is movably connected with a ball. The tension spring is fixed to the side wall of the sliding shaft, and the tension spring is fixed in the rotating sleeve.

[0010] Further technical solution: The angle adjustment mechanism includes a gear fixed at the hinge center of the concave hinge block, and a guiding chute provided at the upper end of the mounting frame. A sliding frame is slidably connected to the guiding chute. A rack is fixed on the sliding frame, and the rack meshes with the gear. A second telescopic cylinder is fixed on the side wall of the mounting frame, and the telescopic end of the second telescopic cylinder is fixedly connected to the sliding frame.

[0011] Further technical solution: The transmission component includes a sliding groove provided on the inner wall of the concave hinge block. A sliding plate is slidably connected to the sliding groove. One end of the sliding plate close to the rotating sleeve is rotatably connected to a rotating disc. Multiple support rods all penetrate through the rotating sleeve and are fixed on the rotating disc. A first guiding shaft is fixed on the sliding plate. A fixed guiding plate is fixed on the mounting frame. A guiding sunk groove is provided on the fixed guiding plate. One end of the guiding sunk groove is close to the hinge axis of the concave hinge block, and the other end of the guiding sunk groove is far from the hinge axis of the concave hinge block.

[0012] Further technical solution: The rotating mechanism includes a protruding sleeve fixed at one end of the rotating sleeve close to the hinge ear. A first bevel gear is fixed on the protruding sleeve. A second bevel gear is rotatably connected to the upper end of the mounting frame. The axis of the second bevel gear coincides with the rotation center of the concave hinge block, and the second bevel gear meshes with the first bevel gear. A connecting shaft is rotatably connected to the upper end of the mounting frame. A third bevel gear is fixed at one end of the connecting shaft, and the third bevel gear meshes with the second bevel gear. A first motor is fixed on the side wall of the mounting frame, and the rotating end of the first motor is fixedly connected to the other end of the connecting shaft.

[0013] Further technical solution: The magnetizing device includes two second guiding shafts fixed on the concave support plate. A moving block is slidably connected to the two second guiding shafts. An annular electromagnet is fixed on the moving block. A moving component is provided on the concave support plate. Under the guiding action of the two second guiding shafts, the moving component is used to drive the moving block to move.

[0014] Further technical solution: The moving component includes a lead screw rotatably connected to the concave support plate. The lead screw is threadedly connected to the moving block. A second motor is fixed on the side wall of the concave support plate, and the rotating end of the second motor is fixedly connected to the lead screw.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. The positioning grooves on multiple support rods form a circular sunk groove for positioning the bushing of the blade casting, which is convenient for fixing the blade casting.

[0017] 2. When multiple support rods continue to support the blade casting, the middle through hole of the blade casting is not clamped and there is no obstruction inside, which is convenient for observing the middle through hole of the blade casting and observing the quality of the middle through hole of the blade casting.

[0018] 3. Multiple arc-shaped inner wall clamping rods clamp the inner wall of the middle through-hole of the blade casting. At this time, the blade casting is fixed. The transmission component drives multiple support rods to retract into the rotating sleeve, and the multiple support rods do not contact the side wall of the blade casting. Furthermore, there is no obstruction on the outer surface of the blade casting, enabling the outer surface of the blade casting to come into contact with the magnetic powder suspension evenly, and enabling a complete magnetic particle flaw detection of the outer surface of the blade casting. By using multiple telescopic support rods to support the side wall of the blade casting and multiple arc-shaped inner wall clamping rods to clamp the inner wall of the middle through-hole of the blade casting alternately, it is possible to achieve clamping at two different positions by placing the blade casting once, facilitating magnetic particle flaw detection of the inside and outside of the blade casting.

[0019] 4. The angle adjustment mechanism drives the concave hinge block to rotate on the hinge ear. The concave hinge block drives the rotating sleeve and the blade casting to rotate, thereby adjusting the angle of the blade casting and facilitating the observation of various angles of the blade casting.

[0020] 5. The rotation mechanism drives the rotating sleeve to rotate. The rotating sleeve drives the blade casting to rotate through multiple arc-shaped inner wall clamping rods. By rotating the blade casting, it is convenient to observe the outer surface of the blade casting, thus facilitating magnetic particle inspection of the blade casting. Description of the Drawings

[0021] Figure 1 Schematic structural diagram of a magnetic particle flaw detection device for blade casting provided by the present invention with the blade casting in a horizontal state;

[0022] Figure 2 Schematic structural diagram of a magnetic particle flaw detection device for blade casting provided by the present invention with the blade casting in a vertical state;

[0023] Figure 3 Provided by the present invention Figure 1 Schematic structural diagram of the mounting frame in

[0024] Figure 4 Provided by the present invention Figure 1 Schematic structural diagram of the connection state of the concave hinge block and the rotating sleeve in

[0025] Figure 5 Provided by the present invention Figure 4 Schematic structural diagram of the concave hinge block in

[0026] Figure 6 Provided by the present invention Figure 4 Schematic structural diagram after removing the concave hinge block;

[0027] Figure 7 Provided by the present invention Figure 6 Schematic internal structural diagram of the rotating sleeve in

[0028] Figure 8 Provided by the present invention Figure 1 Schematic structural diagram of the rotating sleeve in

[0029] Figure 9 Provided by the present invention Figure 8 Schematic cross-sectional structural diagram of the rotating sleeve in

[0030] Figure 10 Provided by the present invention Figure 6 Schematic structural diagram of the support rod and the sliding plate in

[0031] Figure 11 Provided by the present invention Figure 10 Schematic structural diagram of the support rod and the rotating disc in

[0032] Figure 12 Provided by the present invention Figure 10 Schematic structural diagram of the sliding plate in

[0033] Figure 13 Provided by the present invention Figure 7 Schematic structural diagram of the inner wall clamping mechanism in

[0034] Figure 14 Provided by the present invention Figure 13 Schematic internal structural diagram of the transmission shaft in

[0035] Figure 15 Provided by the present invention Figure 14 Schematic enlarged structural diagram of A in

[0036] Figure 16 Provided by the present invention Figure 1 Schematic internal structural diagram of the angle adjustment mechanism in

[0037] In the attached drawings: mounting bracket 101, hinge ear 102, concave hinge block 103, rotating sleeve 104, support rod 105, positioning groove 106, guiding groove 107, arc inner wall clamping rod 108, concave support plate 109, liquid discharge port 110, inner wall clamping mechanism 2, guiding block 201, connecting rod 202, synchronous frame 203, transmission shaft 204, tension spring 205, top plate 206, cross bar 207, first telescopic cylinder 208, sliding shaft 301, fixed sleeve 302, compression spring 303, transmission assembly 4, sliding groove 401, sliding plate 402, rotating disc 403, first guiding shaft 404, fixed guiding plate 405, guiding sunk groove 406, rotating mechanism 5, protruding sleeve 501, first bevel gear 502, second bevel gear 503, third bevel gear 504, connecting shaft 505, first motor 506, angle adjusting mechanism 6, gear 601, guiding sliding groove 602, sliding frame 603, rack 604, second telescopic cylinder 605, magnetizing device 7, workbench 701, second guiding shaft 702, moving block 703, annular electromagnet 704, lead screw 705, second motor 706. Detailed implementation manners

[0038] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with the attached drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0039] The specific implementation of the present invention will be described in detail below in conjunction with specific embodiments.

[0040] Such as Figure 1 - Figure 9As shown in the figure, a magnetic particle flaw detection device for blade castings provided by an embodiment of the present invention includes a concave support plate 109 and a magnetizing device 7, as well as a mounting frame 101 fixed to the upper end of the concave support plate 109. It further includes: a hinge ear 102 provided at the upper end of the mounting frame 101, and a concave hinge block 103 hinged to the hinge ear 102. An angle adjustment mechanism 6 is provided on the mounting frame 101, and the angle adjustment mechanism 6 is used to drive the concave hinge block 103 to rotate on the hinge ear 102; a rotating sleeve 104 is rotatably connected to the concave hinge block 103, and a plurality of support rods 105 are annularly and evenly slidably connected to the rotating sleeve 104, and positioning grooves 106 are provided on each of the plurality of support rods 105; a transmission assembly 4 is provided on the concave hinge block 103. When the concave hinge block 103 rotates upward, the transmission assembly 4 drives the plurality of support rods 105 to extend from the end of the rotating sleeve 104. When the concave hinge block 103 rotates horizontally, the transmission assembly 4 drives the plurality of support rods 105 to retract into the rotating sleeve 104; a plurality of guide grooves 107 are annularly and evenly provided on the inner wall of the rotating sleeve 104, and arc-shaped inner wall clamping rods 108 are hinged in each of the plurality of guide grooves 107. An inner wall clamping mechanism 2 is provided on the rotating sleeve 104, and the inner wall clamping mechanism 2 is used to drive the plurality of arc-shaped inner wall clamping rods 108 to rotate synchronously towards or away from each other; a rotating mechanism 5 is provided on the mounting frame 101, and the rotating mechanism 5 is used to drive the rotating sleeve 104 to rotate. The magnetizing device 7 is used to magnetize the blade casting; a drain port 110 is provided on the side wall of the rotating sleeve 104 at a position lower than the guide groove 107.

[0041] In an embodiment of the present invention, during use, the concave hinge block 103 and the rotating sleeve 104 are in a vertical state. The arc-shaped inner wall clamping rods 108 are all within the rotating sleeve 104, and multiple support rods 105 all extend out of the rotating sleeve 104. The blade casting is placed on the multiple support rods 105, and the positioning grooves 106 on the multiple support rods 105 form a circular sunk groove for positioning the bushing of the blade casting, facilitating the fixation of the blade casting. At this time, a magnetic powder suspension is sprayed onto the blade casting. Then, the magnetizing device 7 magnetizes the blade casting. At this time, the middle through-hole of the blade casting is not clamped and there is no obstruction inside the middle through-hole of the blade casting, facilitating the observation of the quality of the middle through-hole of the blade casting; Subsequently, the inner wall clamping mechanism 2 drives the multiple arc-shaped inner wall clamping rods 108 to rotate synchronously in the reverse direction, so that the multiple arc-shaped inner wall clamping rods 108 rotate out of the rotating sleeve 104 until the multiple arc-shaped inner wall clamping rods 108 clamp the inner wall of the middle through-hole of the blade casting. At this time, the blade casting is fixed. The angle adjustment mechanism 6 drives the concave hinge block 103 to rotate on the hinge ear 102. The concave hinge block 103 drives the rotating sleeve 104 and the blade casting, thereby adjusting the angle of the blade casting, and further facilitating the observation of each angle of the blade casting. When the concave hinge block 103 rotates towards the horizontal direction, the transmission component 4 drives the multiple support rods 105 to retract into the rotating sleeve 104, and the multiple support rods 105 do not contact the side wall of the blade casting, so that the outer surface of the blade casting is unobstructed, enabling the outer surface of the blade casting to come into contact with the magnetic powder suspension, and enabling complete magnetic particle flaw detection of the outer surface of the blade casting. The rotating mechanism 5 drives the rotating sleeve 104 to rotate, and the rotating sleeve 104 drives the blade casting to rotate through the multiple arc-shaped inner wall clamping rods 108. By rotating the blade casting, it is convenient to observe the outer surface of the blade casting, thereby facilitating the magnetic particle detection of the blade casting.

[0042] Such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 13 and Figure 16As shown, as a preferred embodiment of the present invention, the inner wall clamping mechanism 2 includes guide blocks 201 slidably connected in a plurality of guide grooves 107. Connecting rods 202 are hinged on each of the plurality of guide blocks 201. The ends of the plurality of connecting rods 202 are respectively hinged on a plurality of arc-shaped inner wall clamping rods 108. A synchronous frame 203 is slidably connected in the rotating sleeve 104 along the axial direction of the rotating sleeve 104. The synchronous frame 203 is fixedly connected to each of the plurality of guide blocks 201 at the same time. A transmission shaft 204 is fixed at one end of the synchronous frame 203 close to the concave hinge block 103. A pushing component is arranged on the mounting frame 101. The pushing component is used to drive the transmission shaft 204 to move along the axial direction of the rotating sleeve 104. The pushing component includes a tension spring 205 fixed on the transmission shaft 204. The tension spring 205 is fixed in the rotating sleeve 104. A top plate 206 is slidably connected on the mounting frame 101. One end of the top plate 206 close to the transmission shaft 204 is semicircular. A cross bar 207 is fixed at the other end of the top plate 206. Two first telescopic cylinders 208 are fixed on the concave support plate 109. The telescopic ends of the two first telescopic cylinders 208 are respectively fixed at both ends of the cross bar 207.

[0043] In an embodiment of the present invention, in the initial state, the first telescopic cylinder 208 is in a contracted state, the top plate 206 is retracted into the mounting frame 101, the tension spring 205 pulls the transmission shaft 204, the transmission shaft 204 pulls the synchronization frame 203, the synchronization frame 203 pulls a plurality of guide blocks 201, and the guide blocks 201 pull the arc-shaped inner wall clamping rod 108 through the connecting rod 202, so that the arc-shaped inner wall clamping rod 108 is retracted into the rotating sleeve 104; when it is necessary to clamp the blade casting with a plurality of arc-shaped inner wall clamping rods 108, the first telescopic cylinder 208 extends, the first telescopic cylinder 208 drives the cross bar 207 to move towards the blade casting, the cross bar 207 drives the top plate 206 to extend from the upper end of the mounting frame 101, the semi-circular shape at the upper end of the top plate 206 overcomes the elastic force of the tension spring 205 and pushes the transmission shaft 204 to move towards the blade casting, the transmission shaft 204 drives the synchronization frame 203 to move towards the blade casting, the synchronization frame 203 drives a plurality of guide blocks 201 to move towards the blade casting, and the guide blocks 201 push the arc-shaped inner wall clamping rod 108 to rotate through the connecting rod 202, so that a plurality of arc-shaped inner wall clamping rods 108 rotate out of the rotating sleeve 104 until a plurality of arc-shaped inner wall clamping rods 108 are inserted into the middle through hole of the blade casting and clamp the side wall of the middle through hole of the blade casting, thereby completing the fixation of the blade casting. At this time, the center of the semi-circular shape at the upper end of the top plate 206 coincides with the hinge axis of the concave hinge block 103. When the concave hinge block 103 rotates on the hinge ear 102, the concave hinge block 103 drives the rotating sleeve 104 to rotate, the rotating sleeve 104 drives the transmission shaft 204 to rotate, and the end of the transmission shaft 204 slides on the semi-circular shape of the top plate 206. At this time, the transmission shaft 204 does not move relative to the concave hinge block 103 and the rotating sleeve 104, so that the arc-shaped inner wall clamping rod 108 stably clamps the side wall of the middle through hole of the blade casting; when it is necessary to release the blade casting, the first telescopic cylinder 208 contracts, the first telescopic cylinder 208 drives the cross bar 207 to move away from the blade casting, the cross bar 207 drives the top plate 206 to retract into the mounting frame 101, the semi-circular shape at the upper end of the top plate 206 does not contact the transmission shaft 204, the tension spring 205 pulls the transmission shaft 204 to move away from the blade casting, the transmission shaft 204 drives the synchronization frame 203 to move away from the blade casting, the synchronization frame 203 drives a plurality of guide blocks 201 to move away from the blade casting, and the guide blocks 201 pull the arc-shaped inner wall clamping rod 108 through the connecting rod 202, so that the arc-shaped inner wall clamping rod 108 rotates into the rotating sleeve 104.

[0044] As Figure 13 , Figure 14 and Figure 15As shown, as a preferred embodiment of the present invention, the transmission shaft 204 includes a sliding shaft 301 and a fixed sleeve 302. The fixed sleeve 302 is fixed on the synchronization frame 203. The sliding shaft 301 is slidably connected within the fixed sleeve 302. A compression spring 303 is fixed within the fixed sleeve 302. The end of the compression spring 303 is fixedly connected to one end of the sliding shaft 301. The other end of the sliding shaft 301 is movably connected with a ball. The tension spring 205 is fixed on the side wall of the sliding shaft 301, and the tension spring 205 is fixed within the rotating sleeve 104.

[0045] In the embodiment of the present invention, through the arrangement of the compression spring 303, after the clamping rod 108 on the arc-shaped inner wall contacts the side wall of the middle through-hole of the blade casting, the sliding shaft 301 can move relative to the fixed sleeve 302 by compressing the compression spring 303. Then, through the elastic force of the compression spring 303, the stability of the clamping of the blade casting by the clamping rod 108 on the arc-shaped inner wall is improved. Even when the sliding shaft 301 jumps semi-circularly relative to the upper end of the top plate 206, the clamping rod 108 on the arc-shaped inner wall can still stably clamp the blade casting, and the clamping of the middle through-holes with different diameters of the blade casting can be realized through the adaptive adjustment of the lengths of the sliding shaft 301 and the fixed sleeve 302.

[0046] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 16 As shown, as a preferred embodiment of the present invention, the angle adjustment mechanism 6 includes a gear 601 fixed at the hinge center of the concave hinge block 103, and a guiding chute 602 provided at the upper end of the mounting frame 101. A sliding frame 603 is slidably connected on the guiding chute 602. A rack 604 is fixed on the sliding frame 603. The rack 604 meshes with the gear 601. A telescopic cylinder two 605 is fixed on the side wall of the mounting frame 101. The telescopic end of the telescopic cylinder two 605 is fixedly connected to the sliding frame 603.

[0047] In the embodiment of the present invention, when adjusting the angle of the blade, the telescopic cylinder two 605 expands and contracts. The telescopic cylinder two 605 can adopt an electric telescopic rod. Under the guiding action of the guiding chute 602, the expanding and contracting telescopic cylinder two 605 drives the sliding frame 603 to move. The sliding frame 603 drives the rack 604 to move. The rack 604 drives the gear 601 to rotate. The gear 601 drives the concave hinge block 103 to rotate. The concave hinge block 103 drives the rotating sleeve 104 to rotate. The rotating sleeve 104 drives the blade casting to rotate up and down through the clamping rod 108 on the arc-shaped inner wall, thereby adjusting the inclination angle of the blade casting.

[0048] As Figure 1 , Figure 2 , Figure 3 , Figure 4 ,Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 and Figure 12 As shown in ,

[0049] , ,

[0050] , Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , as a preferred embodiment of the present invention, the transmission assembly 4 includes a sliding groove 401 provided on the inner wall of the concave hinge block 103. A sliding plate 402 is slidably connected to the sliding groove 401. One end of the sliding plate 402 close to the rotating sleeve 104 is rotatably connected to a rotating disc 403. A plurality of the support rods 105 all penetrate through the rotating sleeve 104 and are fixed on the rotating disc 403. A guide shaft 404 is fixed on the sliding plate 402. A fixed guide plate 405 is fixed on the mounting frame 101. A guide sink 406 is provided on the fixed guide plate 405. One end of the guide sink 406 is close to the hinge axis of the concave hinge block 103, and the other end of the guide sink 406 is far from the hinge axis of the concave hinge block 103.

[0049] In the embodiment of the present invention, in the initial state, the concave hinge block 103 and the rotating sleeve 104 are in a vertical state. The guide shaft 404 is located at the end of the guide sink 406 far from the hinge axis of the concave hinge block 103, and the support rods 105 extend out of the rotating sleeve 104. When the concave hinge block 103 and the rotating sleeve 104 rotate downward, the concave hinge block 103 drives the sliding plate 402 to rotate. The guide shaft 404 moves towards the end of the guide sink 406 close to the hinge axis of the concave hinge block 103. Under the guiding action of the sliding groove 401, the guide shaft 404 pulls the sliding plate 402 away from the blade casting. The sliding plate 402 drives the rotating disc 403 away from the blade casting. The rotating disc 403 drives a plurality of support rods 105 away from the blade casting and retracts into the rotating sleeve 104. When the concave hinge block 103 and the rotating sleeve 104 rotate upward, the concave hinge block 103 drives the sliding plate 402 to rotate. The guide shaft 404 moves towards the end of the guide sink 406 far from the hinge axis of the concave hinge block 103. Under the guiding action of the sliding groove 401, the guide shaft 404 pushes the sliding plate 402 close to the blade casting. The sliding plate 402 drives the rotating disc 403 close to the blade casting. The rotating disc 403 drives a plurality of support rods 105 close to the blade casting and extends out of the rotating sleeve 104.

[0050] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9As shown, as a preferred embodiment of the present invention, the rotating mechanism 5 includes a protruding sleeve 501 fixed to one end of the rotating sleeve 104 close to the hinge ear 102. A first bevel gear 502 is fixed to the protruding sleeve 501. A second bevel gear 503 is rotatably connected to the upper end of the mounting frame 101. The axis of the second bevel gear 503 coincides with the rotation center of the concave hinge block 103, and the second bevel gear 503 meshes with the first bevel gear 502. A connecting shaft 505 is rotatably connected to the upper end of the mounting frame 101. A third bevel gear 504 is fixed to one end of the connecting shaft 505. The third bevel gear 504 meshes with the second bevel gear 503. A first motor 506 is fixed to the side wall of the mounting frame 101. The rotating end of the first motor 506 is fixedly connected to the other end of the connecting shaft 505.

[0051] In the embodiment of the present invention, when it is necessary to drive the blade casting to rotate around the axis of the blade casting, the first motor 506 drives the connecting shaft 505 to rotate. The connecting shaft 505 drives the third bevel gear 504 to rotate. The third bevel gear 504 drives the second bevel gear 503 to rotate. The second bevel gear 503 drives the first bevel gear 502 to rotate. The first bevel gear 502 drives the protruding sleeve 501 to rotate. The protruding sleeve 501 drives the rotating sleeve 104 to rotate. The rotating sleeve 104 drives the blade casting to rotate through the arc-shaped inner wall clamping rod 108.

[0052] As Figure 1 and Figure 2 As shown, as a preferred embodiment of the present invention, the magnetizing device 7 includes two second guide shafts 702 fixed to the concave support plate 109. A moving block 703 is slidably connected to the two second guide shafts 702. An annular electromagnet 704 is fixed to the moving block 703. A moving component is arranged on the concave support plate 109. Under the guiding action of the two second guide shafts 702, the moving component is used to drive the moving block 703 to move. The moving component includes a lead screw 705 rotatably connected to the concave support plate 109. The lead screw 705 is threadedly connected to the moving block 703. A second motor 706 is fixed to the side wall of the concave support plate 109. The rotating end of the second motor 706 is fixedly connected to the lead screw 705. A workbench 701 is fixed to the concave support plate 109.

[0053] In an embodiment of the present invention, after the ring electromagnet 704 is energized, it generates magnetism. The second motor 706 drives the lead screw 705 to rotate. Under the guiding action of the second guiding shaft 702, the rotating lead screw 705 drives the moving block 703 to move through a threaded transmission manner. The moving block 703 drives the ring electromagnet 704 to move, so that the blade casting passes through the ring electromagnet 704 and is magnetized. In the present invention, the first telescopic cylinder 208, the first motor 506, the second telescopic cylinder 605, and the second motor 706 are all arranged away from the blade casting, thereby avoiding damage to the first telescopic cylinder 208, the first motor 506, the second telescopic cylinder 605, and the second motor 706 caused by the ring electromagnet 704.

[0054] In the above embodiments of the present invention, a magnetic particle flaw detection device for blade castings is provided. When in use, the concave hinge block 103 and the rotating sleeve 104 are in a vertical state, the arc-shaped inner wall clamping rods 108 are all inside the rotating sleeve 104, and multiple support rods 105 all extend out of the rotating sleeve 104. The blade casting is placed on the multiple support rods 105, and the positioning grooves 106 on the multiple support rods 105 form a circular sunk groove for positioning the bushing of the blade casting to facilitate fixing the blade casting. At this time, a magnetic particle suspension is sprayed onto the blade casting. Then, after the annular electromagnet 704 is energized to generate magnetism, the motor two 706 drives the lead screw 705 to rotate. Under the guiding action of the guiding shaft two 702, the rotating lead screw 705 drives the moving block 703 to move through screw thread transmission. The moving block 703 drives the annular electromagnet 704 to move, so that the blade casting passes through the annular electromagnet 704 and is magnetized. At this time, the middle through hole of the blade casting is not clamped and there is no obstruction inside the middle through hole of the blade casting, which is convenient for observing the quality of the middle through hole of the blade casting;Subsequently, the first telescopic cylinder 208 extends. The first telescopic cylinder 208 drives the cross bar 207 to move towards the blade casting. The cross bar 207 drives the top plate 206 to extend from the upper end of the mounting frame 101. The semi-circular shape at the upper end of the top plate 206 overcomes the elastic force of the tension spring 205 and pushes the transmission shaft 204 to move towards the blade casting. The transmission shaft 204 drives the synchronous frame 203 to move towards the blade casting. The synchronous frame 203 drives multiple guide blocks 201 to move towards the blade casting. The guide blocks 201 push the arc inner wall clamping rods 108 to rotate through the connecting rods 202, causing the multiple arc inner wall clamping rods 108 to rotate out of the rotating sleeve 104 until the multiple arc inner wall clamping rods 108 rotate into the middle through hole of the blade casting and clamp the side wall of the middle through hole of the blade casting, thereby completing the fixation of the blade casting. The second telescopic cylinder 605 expands and contracts. Under the guiding action of the guiding chute 602, the expanding and contracting second telescopic cylinder 605 drives the sliding frame 603 to move. The sliding frame 603 drives the rack 604 to move. The rack 604 drives the gear 601 to rotate. The gear 601 drives the concave hinge block 103 to rotate. The concave hinge block 103 drives the rotating sleeve 104 to rotate. The rotating sleeve 104 drives the blade casting to rotate up and down through the arc inner wall clamping rods 108, thereby adjusting the inclination angle of the blade casting, and further facilitating the observation of each angle of the blade casting. When the concave hinge block 103 rotates in the horizontal direction, the concave hinge block 103 drives the sliding plate 402 to rotate. The first guide shaft 404 moves towards the end of the guiding sink 406 close to the hinge axis of the concave hinge block 103. Under the guiding action of the sliding groove 401, the first guide shaft 404 pulls the sliding plate 402 away from the blade casting. The sliding plate 402 drives the rotating disk 403 away from the blade casting. The rotating disk 403 drives multiple support rods 105 to move away from the blade casting and retract into the rotating sleeve 104. The multiple support rods 105 do not contact the side wall of the blade casting, so that the outer surface of the blade casting has no obstruction, enabling the outer surface of the blade casting to come into contact with the magnetic powder suspension, and enabling complete magnetic particle flaw detection of the outer surface of the blade casting. The first motor 506 drives the connecting shaft 505 to rotate. The connecting shaft 505 drives the third bevel gear 504 to rotate. The third bevel gear 504 drives the second bevel gear 503 to rotate. The second bevel gear 503 drives the first bevel gear 502 to rotate. The first bevel gear 502 drives the protruding sleeve 501 to rotate. The protruding sleeve 501 drives the rotating sleeve 104 to rotate. The rotating sleeve 104 drives the blade casting to rotate through the arc inner wall clamping rods 108. By rotating the blade casting, it is convenient to observe the outer surface of the blade casting, thereby facilitating magnetic particle detection of the blade casting.;

[0055] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A magnetic particle flaw detection device for blade casting inspection, comprising a concave support plate (109) and a magnetizing device (7), and a mounting frame (101) fixed to the upper end of the concave support plate (109), characterized in that: Also includes: A hinged ear (102) is arranged at the upper end of the mounting frame (101), and a concave hinged block (103) hinged on the hinged ear (102), wherein the mounting frame (101) is provided with an angle adjustment mechanism (6), and the angle adjustment mechanism (6) is used to drive the concave hinged block (103) to rotate on the hinged ear (102); The concave hinge block (103) is rotatably connected to a rotating sleeve (104), the rotating sleeve (104) is annularly and evenly slidably connected to a plurality of support rods (105), and the plurality of support rods (105) are all provided with positioning grooves (106); The concave hinge block (103) is provided with a transmission assembly (4). When the concave hinge block (103) rotates upward, the transmission assembly (4) drives the plurality of support rods (105) to extend from the end of the rotating sleeve (104). The positioning grooves 106 on the plurality of support rods 105 form a circular groove and position the shaft sleeve of the blade casting. When the concave hinge block (103) rotates in a horizontal direction, the transmission assembly (4) drives the plurality of support rods (105) to retract into the rotating sleeve (104). A plurality of guide grooves (107) are evenly arranged in an annular shape on the inner wall of the rotating sleeve (104), and arc-shaped inner wall clamping rods (108) are hinged in the plurality of guide grooves (107). The plurality of arc-shaped inner wall clamping rods 108 clamp the inner wall of the middle through hole of the blade casting. The rotating sleeve (104) is provided with an inner wall clamping mechanism (2), and the inner wall clamping mechanism (2) is used to drive the plurality of arc-shaped inner wall clamping rods (108) to rotate synchronously in the same direction or in the opposite direction. The mounting frame (101) is provided with a rotating mechanism (5), the rotating mechanism (5) is used to drive the rotating sleeve (104) to rotate, and the magnetizing device (7) is used to magnetize the blade casting.

2. The magnetic particle flaw detection equipment for blade casting inspection according to claim 1 is characterized in that: The inner wall clamping mechanism (2) comprises a plurality of guide blocks (201) slidably connected in the guide grooves (107), a plurality of the guide blocks (201) are hingedly connected to connecting rods (202), the ends of the plurality of connecting rods (202) are respectively hingedly connected to a plurality of arc-shaped inner wall clamping rods (108), a synchronous frame (203) is slidably connected in the rotating sleeve (104) along the axial direction of the rotating sleeve (104), the synchronous frame (203) is fixedly connected to the plurality of guide blocks (201) at the same time, a transmission shaft (204) is fixedly connected to one end of the synchronous frame (203) close to the concave hinge block (103), and a pushing component is provided on the mounting frame (101), the pushing component is used to drive the transmission shaft (204) to move along the axial direction of the rotating sleeve (104).

3. The magnetic particle flaw detection equipment for blade casting inspection according to claim 2 is characterized in that: The pushing assembly comprises a tension spring (205) fixed on the transmission shaft (204), the end of the tension spring (205) being fixed in the rotating sleeve (104), a top plate (206) being slidably connected to the mounting frame (101), one end of the top plate (206) close to the transmission shaft (204) being arranged in a semicircular shape, a cross bar (207) being fixed to the other end of the top plate (206), and two telescopic cylinders (208) being fixed on the concave support plate (109), the telescopic ends of the two telescopic cylinders (208) being respectively fixed at the two ends of the cross bar (207).

4. The magnetic particle flaw detection equipment for blade casting inspection according to claim 3 is characterized in that: The transmission shaft (204) comprises a sliding shaft (301) and a fixed sleeve (302), wherein the fixed sleeve (302) is fixed on the synchronous frame (203), the sliding shaft (301) is slidably connected in the fixed sleeve (302), a compression spring (303) is fixed in the fixed sleeve (302), the end of the compression spring (303) is fixedly connected to one end of the sliding shaft (301), and the other end of the sliding shaft (301) is movably connected to a ball bearing, the tension spring (205) is fixed on the side wall of the sliding shaft (301), and the end of the tension spring (205) is fixed in the rotating sleeve (104).

5. The magnetic particle flaw detection equipment for blade casting inspection according to claim 1 is characterized in that: The angle adjustment mechanism (6) comprises a gear (601) fixed at the hinge center of the concave hinge block (103), and a guide slot (602) arranged at the upper end of the mounting frame (101); a sliding frame (603) is slidably connected to the guide slot (602); a rack (604) is fixed to the sliding frame (603); the rack (604) is meshed with the gear (601); a telescopic cylinder 2 (605) is fixed to the side wall of the mounting frame (101); and the telescopic end of the telescopic cylinder 2 (605) is fixedly connected to the sliding frame (603).

6. The magnetic particle flaw detection equipment for blade casting inspection according to claim 1 is characterized in that: The transmission assembly (4) comprises a sliding groove (401) arranged on the inner wall of the concave hinge block (103), a sliding plate (402) being slidably connected to the sliding groove (401), an end of the sliding plate (402) close to the rotating sleeve (104) being rotatably connected to the rotating disk (403), a plurality of support rods (105) all pass through the rotating sleeve (104) and are fixed on the rotating disk (403), a guide shaft 1 (404) is fixed on the sliding plate (402), a fixed guide plate (405) is fixed on the mounting frame (101), a guide groove (406) is arranged on the fixed guide plate (405), one end of the guide groove (406) is close to the hinge axis of the concave hinge block (103), and the other end of the guide groove (406) is away from the hinge axis of the concave hinge block (103).

7. The magnetic particle flaw detection equipment for blade casting inspection according to claim 1 is characterized in that: The rotating mechanism (5) comprises a protruding sleeve (501) fixed to one end of the rotating sleeve (104) near the hinge ear (102), a bevel gear 1 (502) being fixed on the protruding sleeve (501), a bevel gear 2 (503) being rotatably connected to the upper end of the mounting frame (101), the axis of the bevel gear 2 (503) coincides with the rotation center of the concave hinge block (103), and the bevel gear 2 (503) is meshed with the bevel gear 1 (502), a connecting shaft (505) is rotatably connected to the upper end of the mounting frame (101), a bevel gear 3 (504) is fixed to one end of the connecting shaft (505), and the bevel gear 3 (504) is meshed with the bevel gear 2 (503), and a motor 1 (506) is fixed to the side wall of the mounting frame (101), and the rotating end of the motor 1 (506) is fixedly connected to the other end of the connecting shaft (505).

8. The magnetic particle flaw detection equipment for blade casting inspection according to claim 1 is characterized in that: The magnetizing device (7) comprises two guide shafts (702) fixed on a concave support plate (109), a moving block (703) being slidably connected to the two guide shafts (702), an annular electromagnet (704) being fixed to the moving block (703), and a moving assembly being arranged on the concave support plate (109), and the moving assembly is used to drive the moving block (703) to move under the guiding action of the two guide shafts (702).

9. The magnetic particle flaw detection equipment for blade casting inspection according to claim 8 is characterized in that: The moving assembly comprises a screw rod (705) rotatably connected to the concave support plate (109), the screw rod (705) being threadedly connected to the moving block (703), a second motor (706) being fixed to the side wall of the concave support plate (109), and a rotating end of the second motor (706) being fixedly connected to the screw rod (705).

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