A spraying device for fluorescent magnetic particle inspection

Abstract

The utility model relates to a kind of spray devices for fluorescent magnetic particle flaw detection, including protective box, rotating frame is equipped in protective box, the inward side of rotating frame is evenly equipped with several spray heads along length direction, one pair of symmetrical rotating seat is equipped in protective box, the first and last ends of rotating frame are respectively rotationally connected with rotating seat, connecting pipe is equipped on protective box, valve is equipped on connecting pipe, the inner end of connecting pipe is rotationally connected with the end of rotating frame, connecting pipe is connected with the inner chamber of rotating frame, connecting rod is rotationally connected with the other side of connecting pipe in protective box, the inner end of connecting rod is connected with the end of rotating frame, the outer end of connecting rod is coaxially connected with the output end of driving assembly;Clamping assembly is equipped in rotating seat in protective box, clamping end of clamping assembly can rotate relative to connecting portion and the rotation axis of clamping end is on same horizontal straight line, locking member is equipped on clamping assembly.The utility model has the advantages of less spray dead angle and good spray effect.

Description

Technical Field

[0001] This utility model relates to the field of magnetic particle testing technology, specifically to a spray device for fluorescent magnetic particle testing. Background Technology

[0002] Magnetic particle testing utilizes the fact that when ferromagnetic materials are magnetized, damage causes local distortion of the magnetic field lines on or near the surface of the workpiece. The resulting leakage magnetic field attracts magnetic particles, forming visible magnetic traces. These magnetic traces reveal the location, shape, and size of the damaged area, making it a common method for detecting damage to workpieces.

[0003] The general method for applying magnetic powder to a workpiece is to mix the magnetic powder with water to make a magnetic suspension, and then spray the magnetic suspension onto the surface of the workpiece. Usually, the spraying of the magnetic suspension is done by a spraying device. The installation position and discharge direction of the liquid outlet of the traditional spraying device are fixed, which results in some dead corners of the workpiece that are difficult to be directly sprayed with the magnetic suspension, reducing the spraying effect and affecting the accuracy of magnetic particle inspection. Utility Model Content

[0004] The purpose of this invention is to provide a spray device for fluorescent magnetic particle flaw detection, which has the advantages of fewer spray dead zones and better spraying effect.

[0005] The technical solution of this utility model is as follows: A spray device for fluorescent magnetic particle flaw detection includes a protective box. Inside the protective box is a rotating frame with an inner cavity. The rotating frame is U-shaped. Several nozzles are evenly arranged along the length of the rotating frame on its inner side. The protective box contains a pair of symmetrical rotating seats. The two ends of the rotating frame are rotatably connected to the rotating seats. The protective box has a connecting pipe with a valve. The inner end of the connecting pipe is rotatably connected to the end of the rotating frame. The connecting pipe communicates with the inner cavity of the rotating frame. The outer end of the connecting pipe is connected to a high-pressure... The magnetic suspension fluid source is connected. The protective box is rotatably connected to a connecting rod on the opposite side of the connecting pipe. The inner end of the connecting rod is connected to the end of the rotating frame, and the outer end of the connecting rod is coaxially connected to the output end of the drive assembly. The rotation axis of the rotating frame around the connecting pipe is on the same horizontal line as the central axis of the connecting rod. The protective box has a clamping assembly inside the rotating seat that clamps the left and right sides of the workpiece. The clamping end of the clamping assembly can rotate relative to the connecting part, and the rotation axis of the clamping end is on the same horizontal line. The clamping assembly is provided with a locking element for fixing the clamping end.

[0006] Preferably, the clamping assembly includes vertical rods, a slide rail, a tension spring, a rotating block, an abutment block, and a locking screw. The bottom of the protective box is provided with a straight slide rail, and a fixed seat is provided at the midpoint of the slide rail. A pair of vertical rods symmetrical about the fixed seat are slidably connected on the slide rail. A tension spring is connected between the fixed seat and the vertical rods. A rotating block is rotatably connected to the top of the opposite surfaces of the two vertical rods. An abutment block is provided on the opposite surfaces of the two rotating blocks. A locking screw that can be screwed to abut the rotating block is provided at the top of the two vertical rods.

[0007] Preferably, the protective box has several grid plates below the rotating frame, and the grid plates can be assembled into the shape of the cross-section of the protective box. The bottom of the protective box has several support platforms, and the top of the support platforms abuts against the bottom of the outer edge of the grid plates.

[0008] Preferably, the grid plate is provided with an opening for the clamping assembly to pass through vertically.

[0009] Preferably, a control console is provided outside the protective box, and the valves and drive components are electrically connected to the control console.

[0010] Preferably, the drive assembly includes a servo motor and a gearbox. The servo motor is electrically connected to the control console, the output end of the servo motor is connected to the input end of the gearbox, and the output end of the gearbox is coaxially connected to the outer end of the connecting rod.

[0011] Preferably, the end of the rotating frame is provided with a mating circular hole for the inner end of the connecting tube to pass through, and a sealing ring A is provided along the inner edge of the mating circular hole, and the sealing ring A abuts against the outer wall of the connecting tube.

[0012] Preferably, the inner end of the connecting rod is provided with a plug, the end of the rotating frame is provided with a slot corresponding to the plug, the protective box is provided with an insertion hole for the connecting rod to pass through, and a sealing ring B is provided along the inner edge of the insertion hole, the sealing ring B abutting against the outer wall of the connecting rod.

[0013] Preferably, the top of the protective box is provided with an operating port for picking up and putting in workpieces, and a protective cover is hinged to the operating port. The protective cover and the operating port are provided with corresponding latches at the closed position.

[0014] Preferably, a rotating ring is provided on the outer side of the end of the rotating frame, and a groove corresponding to the rotating ring is provided on the rotating seat, and the rotating ring and the groove are rotatably connected.

[0015] The beneficial technical effects of this utility model are as follows: 1. By using a combination of rotating frame, rotating seat, drive assembly, valve, connecting pipe and connecting rod, the nozzle can spray magnetic suspension liquid onto the workpiece while rotating around the workpiece, reducing spray dead angles and improving spraying effect; the drive assembly drives the rotating frame to rotate via the connecting rod, the central axis of the connecting rod coincides with the rotation axis of the rotating frame around the connecting pipe, the rotating pipe does not hinder the rotation of the rotating frame, after the valve is opened, the magnetic suspension liquid is injected into the rotating frame through the connecting pipe, and then the magnetic suspension liquid flows to each nozzle and is ejected.

[0016] 2. The clamping assembly fixes the horizontal position of the workpiece, reducing the risk of workpiece displacement. The combination of the rotatable clamping end and the locking part that can fix the clamping end makes it easy for the operator to adjust the orientation of the clamped workpiece, further reducing the spray dead angle and improving the spraying effect. Because the rotating frame cannot be fully rotated due to the obstruction of the clamping assembly, there are parts of the clamped workpiece that cannot be directly sprayed. By releasing the locking part and allowing the workpiece to rotate, the parts of the workpiece that were originally difficult to spray are turned to the direction in which they can be sprayed by the nozzle, thereby reducing the spray dead angle and improving the spraying effect. Attached Figure Description

[0017] The technical solution of this utility model will be further described below with reference to the accompanying drawings.

[0018] Appendix Figure 1 This is the front view of the present invention.

[0019] Appendix Figure 2 This is a front-view cross-sectional view of the present invention.

[0020] Appendix Figure 3 for Figure 2 Enlarged view of part A.

[0021] Appendix Figure 4 for Figure 2 Enlarged view of part B.

[0022] Appendix Figure 5 for Figure 2 Enlarged view of part C.

[0023] Appendix Figure 6 A top-down sectional view of the interior of the protective enclosure.

[0024] In the diagram: 1-Protective box, 2-Rotating frame, 3-Nozzle, 4-Rotating seat, 5-Connecting pipe, 6-Valve, 7-Connecting rod, 8-Drive assembly, 9-Clamping assembly, 10-Vertical rod, 11-Slide rail, 12-Tension spring, 13-Rotating block, 14-Abutting block, 15-Locking screw, 16-Grate plate, 17-Support platform, 18-Port, 19-Control console, 20-Servo motor, 21-Gearbox, 22-Mating hole, 23-Sealing ring A, 24-Plug, 25-Slot, 26-Insertion hole, 27-Sealing ring B, 28-Operating port, 29-Protective cover, 30-Lock, 31-Rotating ring, 32-Groove. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0026] Example: like Figures 1 to 6 As shown, this embodiment provides a spray device for fluorescent magnetic particle flaw detection, including a protective box 1. The protective box 1 contains a rotating frame 2 with an inner cavity. The rotating frame 2 is U-shaped. Several nozzles 3 are evenly arranged along the length of the rotating frame 2 on its inner side. The protective box 1 contains a pair of symmetrical rotating seats 4. The two ends of the rotating frame 2 are rotatably connected to the rotating seats 4. The protective box 1 is provided with a connecting pipe 5, and a valve 6 is provided on the connecting pipe 5. The inner end of the connecting pipe 5 is rotatably connected to the end of the rotating frame 2. The connecting pipe 5 communicates with the inner cavity of the rotating frame 2, and the outer end of the connecting pipe 5 is connected to a liquid inlet. The tube is connected to the high-pressure magnetic suspension fluid source. The protective box 1 is rotatably connected to the connecting rod 7 on the opposite side of the connecting tube 5. The inner end of the connecting rod 7 is connected to the end of the rotating frame 2, and the outer end of the connecting rod 7 is coaxially connected to the output end of the drive assembly 8. The rotation axis of the rotating frame 2 around the connecting tube 5 is on the same horizontal straight line as the central axis of the connecting rod 7. The protective box 1 is equipped with a clamping assembly 9 on the left and right sides of the workpiece in the rotating seat 4. The clamping end of the clamping assembly 9 can rotate relative to the connecting part and the rotation axis of the clamping end is on the same horizontal straight line. The clamping assembly 9 is equipped with a locking part for fixing the clamping end.

[0027] By using the rotating frame 2, rotating seat 4, driving component 8, valve 6, connecting pipe 5, and connecting rod 7 together, the nozzle 3 can spray magnetic suspension liquid onto the workpiece while rotating around the workpiece, reducing spray dead angles and improving spraying effect. The driving component 8 drives the rotating frame 2 to rotate via the connecting rod 7. The central axis of the connecting rod 7 coincides with the rotation axis of the rotating frame 2 around the connecting pipe 5. The rotating pipe does not hinder the rotation of the rotating frame 2. After the valve 6 is opened, the magnetic suspension liquid is injected into the rotating frame 2 through the connecting pipe 5, and then the magnetic suspension liquid flows to each nozzle 3 and is ejected. The clamping assembly 9 fixes the horizontal position of the workpiece, reducing the risk of workpiece displacement. The combination of the rotatable clamping end and the locking part that can fix the clamping end makes it easy for the operator to adjust the orientation of the clamped workpiece, further reducing the spray dead angle and improving the spraying effect. Because the rotating frame 2 cannot be fully rotated due to the obstruction of the clamping assembly 9, there are parts of the clamped workpiece that cannot be directly sprayed. By releasing the locking part and allowing the workpiece to rotate, the parts of the workpiece that were originally difficult to spray are turned to the direction that can be sprayed by the nozzle 3, thereby reducing the spray dead angle and improving the spraying effect.

[0028] Furthermore, the clamping assembly 9 includes a vertical rod 10, a slide rail 11, a tension spring 12, a rotating block 13, an abutment block 14, and a locking screw 15. The bottom of the protective box 1 is provided with a straight slide rail 11. A fixed seat is provided at the midpoint of the slide rail 11. A pair of vertical rods 10 slidably connected to the slide rail 11 are symmetrical about the fixed seat. A tension spring 12 is connected between the fixed seat and the vertical rods 10. A rotating block 13 is rotatably connected to the top of the opposite surfaces of the two vertical rods 10. An abutment block 14 is provided on the opposite surfaces of the two rotating blocks 13. A locking screw 15 is provided at the top of the two vertical rods 10 that can be screwed to abut the rotating block 13.

[0029] The movement direction of the vertical rods 10 is restricted by the slide rail 11. The tension spring 12 provides the pulling force for the two vertical rods 10 to engage. The rotating block 13 with the abutment block 14 serves as the clamping end, and the locking screw 15 serves as the locking element to fix the rotating block 13. When installing the workpiece, the operator first pulls the two vertical rods 10 apart and holds them in place. Then, the workpiece is placed between the two abutment blocks 14, and the vertical rods 10 are released, allowing the two abutment blocks 14 to clamp the workpiece. After the sprayable parts of the workpiece have been sprayed, the locking screw 15 is loosened and the unsprayed parts are rotated out. Then, the locking screw 15 is tightened to complete the subsequent spraying work. Specifically, in this embodiment, the slide rail 11 is located on the center line of the bottom of the protective box 1, maintaining a relatively even distance between the vertical rods 10 and the inner walls on both sides of the protective box 1, leaving space for placing the workpiece.

[0030] Furthermore, the protective box 1 has several grid plates 16 located below the rotating frame 2. The grid plates 16 can be assembled into the cross-sectional shape of the protective box 1. The bottom of the protective box 1 has several support platforms 17, and the top of the support platforms 17 abuts against the bottom of the outer edge of the grid plates 16.

[0031] The grating plate 16 is used to prevent workpieces from falling into the waste magnetic suspension at the bottom of the protective box 1 due to accidental drops. Compared to a single grating plate, the smaller grating plate 16 is easier to avoid the rotating frame 2 and the clamping assembly 9, making it easier to pick up and put down. The support platform 17 provides a stable placement surface for the grating plate 16. Specifically, in this embodiment, the cross-sectional shape of the protective box 1 where the grating plate 16 is located is rectangular, and there are four grating plates 16 of similar size.

[0032] Furthermore, the grid plate 16 is provided with a through opening 18 for the clamping assembly 9 to pass through vertically.

[0033] When the clamping component 9 passes through the placement surface of the grid plate 16, the grid plate 16 needs to be provided with an opening 18. Specifically, in this embodiment, the opening 18 is composed of a notch at the splice of the grid plate 16. The notch is located above the slide rail 11 and parallel to the slide rail 11, leaving space for the vertical rod 10 to move along the slide rail 11.

[0034] Furthermore, a control console 19 is provided outside the protection box 1, and the valve 6 and the drive assembly 8 are all electrically connected to the control console 19.

[0035] The control panel 19 allows staff to easily operate the valve 6 to open and close and the drive assembly 8 to run.

[0036] Furthermore, the drive assembly 8 includes a servo motor 20 and a gearbox 21. The servo motor 20 is electrically connected to the console 19, and the output end of the servo motor 20 is connected to the input end of the gearbox 21. The output end of the gearbox 21 is coaxially connected to the outer end of the connecting rod 7.

[0037] The servo motor 20, together with the control console 19, can precisely control the torque and speed, allowing the rotating frame 2 to rotate within a reasonable range and preventing it from being damaged by excessive rotation.

[0038] Furthermore, the end of the rotating frame 2 is provided with a mating circular hole 22 for the inner end of the connecting pipe 5 to pass through, and a sealing ring A23 is provided on the inner edge of the mating circular hole 22, and the sealing ring A23 abuts against the outer wall of the connecting pipe 5.

[0039] The connecting hole 22 provides a rotating connection between the connecting pipe 5 and the rotating frame 2, and the sealing ring A23 increases the sealing performance, reducing the risk of magnetic suspension fluid leaking out of the rotating frame 2.

[0040] Furthermore, the inner end of the connecting rod 7 is provided with a plug 24, the end of the rotating frame 2 is provided with a slot 25 corresponding to the plug 24, the protective box 1 is provided with an insertion round hole 26 for the connecting rod 7 to pass through, and a sealing ring B27 is provided on the inner edge of the insertion round hole 26, the sealing ring B27 abuts against the outer wall of the connecting rod 7.

[0041] The use of plug 24 and slot 25 facilitates the assembly and disassembly of connecting rod 7 and the end of rotating frame 2. The insertion of round hole 26 provides a rotating connection between connecting rod 7 and protective box 1. Sealing ring B27 increases sealing performance and reduces the risk of magnetic suspension fluid leaking out of protective box 1.

[0042] Furthermore, the top of the protective box 1 is provided with an operation port 28 for picking up and putting in workpieces. A protective cover 29 is hinged to the operation port 28. The protective cover 29 and the operation port 28 are provided with corresponding latches 30 at the closing point.

[0043] The protective cover 29 is used to seal the operating port 28 during magnetic suspension spraying to prevent the magnetic suspension from leaking to the outside. The latch 30 is used to help the protective cover 29 to be stably covered on the operating port 28. Specifically, in this embodiment, the protective cover 29 is made of transparent plastic, which makes it convenient for staff to observe the spraying situation inside the protective box 1.

[0044] Furthermore, a rotating ring 31 is provided on the outer side of the end of the rotating frame 2, and a groove 32 corresponding to the rotating ring 31 is provided on the rotating seat 4, and the rotating ring 31 and the groove 32 are rotatably connected.

[0045] Working principle and usage process of this utility model: After the worker unlocks the latch 30, they lift the protective cover 29 and pull the two vertical rods 10 apart through the operating port 28. After placing the workpiece between the two abutment blocks 14, they release them, and the two abutment blocks 14 clamp the two sides of the workpiece. After closing the protective cover 29, they operate the control panel 19. The servo motor 20 makes the rotating frame 2 rotate back and forth within the specified rotation range. After the valve 6 is opened, the magnetic suspension liquid flows along the connecting pipe 5 and the rotating frame 2 to each nozzle 3, generating spray liquid that is sprayed onto the workpiece. After spraying the upper surface and sides of the workpiece, the worker pauses the servo motor 20 and closes the valve 6. After lifting the protective cover 29, the worker loosens the locking screw 15, then flips the lower surface of the workpiece over and tightens the locking screw 15. After closing the protective cover 29, the worker restarts the servo motor 20 and opens the valve 6 to complete the spraying of the remaining part of the workpiece. Finally, the worker lifts the protective cover 29, pulls the two vertical rods 10 apart, and removes the workpiece.

[0046] The above are merely specific application examples of this utility model and do not constitute any limitation on the scope of protection of this utility model. All technical solutions formed by equivalent transformations or equivalent substitutions fall within the scope of protection of this utility model.

Claims

1. A spray device for fluorescent magnetic particle flaw detection, characterized in that: The device includes a protective box containing a rotating frame with an inner cavity. The rotating frame is U-shaped, and several nozzles are evenly arranged along its length on its inner side. The protective box also contains a pair of symmetrical rotating seats. Both ends of the rotating frame are rotatably connected to the rotating seats. The protective box has a connecting pipe with a valve. The inner end of the connecting pipe is rotatably connected to the end of the rotating frame and communicates with the inner cavity of the rotating frame. The outer end of the connecting pipe is connected to a high-pressure magnetic suspension liquid source via an infusion pipe. The protective box has a connecting rod rotatably connected to the opposite side of the connecting pipe. The inner end of the connecting rod is connected to the end of the rotating frame, and the outer end of the connecting rod is coaxially connected to the output end of the drive assembly. The rotation axis of the rotating frame around the connecting pipe is on the same horizontal line as the central axis of the connecting rod. The protective box has a clamping assembly inside the rotating seat that clamps the left and right sides of the workpiece. The clamping end of the clamping assembly can rotate relative to the connecting part, and the rotation axis of the clamping end is on the same horizontal line. The clamping assembly is provided with a locking element for fixing the clamping end.

2. The spray device for fluorescent magnetic particle flaw detection according to claim 1, characterized in that: The clamping assembly includes vertical rods, a slide rail, a tension spring, a rotating block, a stop block, and a locking screw. The bottom of the protective box is provided with a straight slide rail, and a fixed seat is provided at the midpoint of the slide rail. A pair of vertical rods slidably connected to the slide rail about the fixed seat are connected to the slide rail. A tension spring is connected between the fixed seat and the vertical rods. A rotating block is rotatably connected to the top of the opposite surfaces of the two vertical rods. A stop block is provided on the opposite surfaces of the two rotating blocks. A locking screw is provided at the top of the two vertical rods that can be screwed to abut the rotating block.

3. The spray device for fluorescent magnetic particle flaw detection according to claim 1, characterized in that: The protective box has several grid plates below the rotating frame. The grid plates can be assembled into the cross-sectional shape of the protective box. The bottom of the protective box has several support platforms, and the top of the support platforms abuts against the bottom of the outer edge of the grid plates.

4. The spray device for fluorescent magnetic particle flaw detection according to claim 3, characterized in that: The grid plate is provided with openings for the clamping components to pass through from the top and bottom.

5. The spray device for fluorescent magnetic particle flaw detection according to claim 1, characterized in that: The protective box is equipped with a control console, and the valves and drive components are electrically connected to the control console.

6. The spray device for fluorescent magnetic particle flaw detection according to claim 5, characterized in that: The drive assembly includes a servo motor and a gearbox. The servo motor is electrically connected to the control console. The output end of the servo motor is connected to the input end of the gearbox. The output end of the gearbox is coaxially connected to the outer end of the connecting rod.

7. The spray device for fluorescent magnetic particle flaw detection according to claim 1, characterized in that: The rotating frame has a mating hole at its end for the inner end of the connecting tube to pass through. A sealing ring A is provided along the inner edge of the mating hole, and the sealing ring A abuts against the outer wall of the connecting tube.

8. The spray device for fluorescent magnetic particle flaw detection according to claim 1, characterized in that: The inner end of the connecting rod is provided with a plug, the end of the rotating frame is provided with a slot corresponding to the plug, the protective box is provided with an insertion hole for the connecting rod to pass through, and a sealing ring B is provided along the inner edge of the insertion hole, the sealing ring B abutting against the outer wall of the connecting rod.

9. The spray device for fluorescent magnetic particle flaw detection according to claim 1, characterized in that: The top of the protective box is provided with an operating port for picking up and putting in workpieces. A protective cover is hinged to the operating port, and the protective cover and the operating port are provided with corresponding latches at the closed position.

10. A spray device for fluorescent magnetic particle flaw detection according to claim 1, characterized in that: The outer side of the end of the rotating frame is provided with a rotating ring, and the rotating seat is provided with a groove corresponding to the rotating ring. The rotating ring and the groove are rotatably connected.

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